How to Delete Item Without Deleting Position in Recycler View?

How to Delete Item Without Deleting Position in Recycler View? - java

I really need your help. I've searched Google many days with many keywords, but I couldn't get it. So, I decided to ask to you.
So, here it is. Actually, I have one button in RecyclerView, but this button is repeated as much amount of data available, there are: Button with text "Baca 3x", "Baca 4x", and so on. I want, if I click button with text "Baca 3x" 3 times, it will change to "Baca 2x" >> "Baca 1x" >> remove item. Also if I click button with text "Baca 4x" 4 times, it will change to "Baca 3x" >> "Baca 2x" >> "Baca 1x" >> remove item.
But my problem is, I can't treat every button with different treatment, because every time the item has been deleted, position of data changes automatically. Because of this, I can't get specific button. For example: There is two button,
1. Button "Baca 3x" on position 0
2. Button "Baca 4x" on position 1
If button "Baca 3x" on position 0 has been deleted, so button "Baca 4x" changed it's position automatically to 0. The problem lays here.
Until now I just get every button based on their positions, which is a problem for me. Because of this I am thinking about How to Delete Item Without Deleting Position in Recycler View? Can you guys solve my problem? Should I use DiffUtil?And how to use it? Below the complete code I use:
ModelDoa.java
public class ModelDoa {
public static final int DOA_PAGI = 0;
public static final int DOA_SORE = 1;
public static final int DOA_MASJID = 2;
public static final int DOA_BANGUNT = 3;
public static final int DOA_MAU_TIDUR = 4;
private String mName;
private String bName;
private int mType;
public ModelDoa(String name, String butong, int type) {
this.mName = name;
this.bName = butong;
this.mType = type;
}
public String getName() {
return mName;
}
public void setName(String name) {
this.mName = name;
}
public int getType() {
return mType;
}
public void setType(int type) { this.mType = type; }
public String ambilName() {
return bName;
}
public void setNama(String butonk) {
this.bName = butonk;
}
}
AdapterDoa.java
public class AdapterDoa extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public List<ModelDoa> mList;
public AdapterDoa(List<ModelDoa> list) {
this.mList = list;
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case DOA_PAGI:
View vieu = LayoutInflater.from(parent.getContext()).inflate(R.layout.content_doa, parent, false);
PagiViewHolder rcv = new PagiViewHolder(vieu, this);
return rcv;
case DOA_SORE:
View doa = LayoutInflater.from(parent.getContext()).inflate(R.layout.content_doa, parent, false);
SoreViewHolder mdoa = new SoreViewHolder(doa);
return mdoa;
case DOA_MASJID:
View dMasjid = LayoutInflater.from(parent.getContext()).inflate(R.layout.content_doa, parent, false);
MasjidViewHolder mMasjid = new MasjidViewHolder(dMasjid);
return mMasjid;
case DOA_BANGUNT:
View dBangunt = LayoutInflater.from(parent.getContext()).inflate(R.layout.content_doa, parent, false);
BanguntViewHolder mBangunt = new BanguntViewHolder(dBangunt);
return mBangunt;
case DOA_MAU_TIDUR:
View regut = LayoutInflater.from(parent.getContext()).inflate(R.layout.content_doa, parent, false);
MauTidurViewHolder turu = new MauTidurViewHolder(regut);
return turu;
}
return null;
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
ModelDoa object = mList.get(position);
if (object != null) {
switch (object.getType()) {
case DOA_PAGI:
((PagiViewHolder) holder).mTitle.setText(object.getName());
((PagiViewHolder) holder).tombolbaca.setText(object.ambilName());
break;
case DOA_SORE:
((SoreViewHolder) holder).mTitle.setText(object.getName());
((SoreViewHolder) holder).tombolbaca.setText(object.ambilName());
break;
case DOA_MASJID:
((MasjidViewHolder) holder).mTitle.setText(object.getName());
((MasjidViewHolder) holder).tombolbaca.setText(object.ambilName());
break;
case DOA_BANGUNT:
((BanguntViewHolder) holder).mTitle.setText(object.getName());
((BanguntViewHolder) holder).tombolbaca.setText(object.ambilName());
break;
case DOA_MAU_TIDUR:
((MauTidurViewHolder) holder).mTitle.setText(object.getName());
((MauTidurViewHolder) holder).tombolbaca.setText(object.ambilName());
break;
}
}
}
public void deleteItem(int position) {
mList.remove(position); // hapus list
notifyItemRemoved(position); // hapus tampilan
// notifyItemRangeChanged( position, mList.size());
}
#Override
public int getItemCount() {
if (mList == null)
return 0;
return mList.size();
}
#Override
public int getItemViewType(int position) {
if (mList != null) {
ModelDoa object = mList.get(position);
if (object != null) {
return object.getType();
}
}
return 0;
}
}
PagiViewHolder.java
public class PagiViewHolder extends RecyclerView.ViewHolder {
public TextView mTitle;
public Button tombolbaca;
public Button teksbaca;
public Button tombolshare;
private RelativeLayout rl2;
private int klik10 = 10;
private AdapterDoa myAdapter;
public PagiViewHolder(View itemView, AdapterDoa myAdapter) {
super(itemView);
this.myAdapter = myAdapter;
itemView.setOnClickListener(mainViewClickListener);
mTitle = (TextView) itemView.findViewById(R.id.titleTextView);
tombolbaca = (Button) itemView.findViewById(R.id.buttonbaca);
tombolshare = (Button) itemView.findViewById(R.id.buttonshare);
tombolbaca.setOnClickListener(bacaClickListener);
tombolshare.setOnClickListener(shareClickListener);
rl2 = (RelativeLayout) itemView.findViewById(R.id.relmasjid);
}
private View.OnClickListener bacaClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
teksbaca = (Button) v.findViewById(R.id.buttonbaca);
// Baca 10x
if( getAdapterPosition() ==0 ) {
klik10--;
teksbaca.setText("Baca " + klik10 + "x");
if (klik10 <= 0)
{
// modify listItems however you want... add, delete, shuffle, etc
myAdapter.deleteItem(getAdapterPosition());
}
}
} // onclick
};
private View.OnClickListener shareClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
// Do button click handling here
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, mTitle.getText().toString() + "\n \n download aplikasinya di: http://www.tauhid.or.id" );
sendIntent.setType("text/plain");
Intent.createChooser(sendIntent,"Share via");
v.getContext().startActivity(sendIntent);
}
};
private View.OnClickListener mainViewClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
// Do button click handling here
}
};
}
DoaPagi.java
public class DoaPagi extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_doa_pagi);
// toolbar
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//this line shows back button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
List<ModelDoa> rowListItem = getData();
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(DoaPagi.this);
RecyclerView mRecyclerView = (RecyclerView) findViewById(R.id.recyclerView);
mRecyclerView.setLayoutManager(linearLayoutManager);
mRecyclerView.setHasFixedSize(true);
AdapterDoa rcAdapter = new AdapterDoa(rowListItem);
mRecyclerView.setAdapter(rcAdapter);
}
private List<ModelDoa> getData() {
String[] data = getResources().getStringArray(R.array.doapagi);
String[] baca = getResources().getStringArray(R.array.bacapagi);
List<ModelDoa> list = new ArrayList<ModelDoa>();
for (int i = 0; i < data.length; i++) {
list.add(new ModelDoa(data[i], baca[i], ModelDoa.DOA_PAGI));
}
return list;
}
// Agar back button pada halaman induk settings berfungsi
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
this.finish();
return true;
}
return super.onOptionsItemSelected(item);
}
}
UPDATE (FIX CODE) By: Krishna Sharma:
https://github.com/seadclark/RecyclerViewWithButtonClicks

Here is the fix. just update the ModelDoa constructor as below. I have verified myself and working as expected now. Also sent you pull request on github.
public ModelDoa(String name, String butong, int type) {
this.mName = name;
this.bName = butong;
this.mType = type;
String[] data = butong.split("\\s");
if (data.length > 0) {
String count = data[1].substring(0, data[1].length() - 1);
read10 = Integer.parseInt(count);
}
}

Instead of removing the item from your list AND updating the interface, have two methods. One of them (deleteItem) will only delete the item and the other (deleteItemAndUpdate) will delete the item and update the interface.
public void deleteItem(int position) {
mList.remove(position); // hapus list
}
public void deleteItemAndUpdate(int position) {
mList.remove(position); // hapus list
notifyItemRemoved(position); // hapus tampilan
}
In the future, you can decide whether you want to only remove the item from your list OR remove the item and update the UI.
EDIT 1:
You need to keep track of the amount of times that each item was clicked. We can call this value readCount. Every time that the item is clicked, we subtract 1 from this value. When this value reaches 0, we remove it from the list.
ModelDoa:
public class ModelDoa {
private int readCount = 10;
public int getReadCount() {
return this.readCount;
}
public void setReadCount(int readCount) {
this.readCount = readCount;
}
}
PagiViewHolder:
private View.OnClickListener bacaClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
teksbaca = (Button) v.findViewById(R.id.buttonbaca);
ModelDoa modelDoa = mAdapter.getItem(getAdapterPosition());
if (modelDoa != null) {
modelDoa.setReadCount(modelDoa.getReadCount() - 1);
if (modelDoa.getReadCount() <= 0) {
myAdapter.deleteItem(getAdapterPosition());
}
teksbaca.setText("Baca " + modelDoa.getReadCount() + "x");
}
}
};
AdapterDoa:
public ModelDoa getItem(int position) {
if (position > -1 && position < getItemCount()) {
return this.mList.get(position);
} else {
return null;
}
}
EDIT 2:
The idea is to set the readCount variable when you instantiate the object. You do not have multiple variables that do the same thing. You just change the single readCount variable to be either 7 or 10 when you are creating it and use the same getItem method when retrieving the model (not variable!) itself.
ModelDoa:
public class ModelDoa {
private String name;
private String butong;
private int type;
private int readCount;
public ModelDoa(String name, String butong, int type, int readCount) {
this.mName = name;
this.bName = butong;
this.mType = type;
this.readCount = readCount;
}
public int getReadCount() {
return this.readCount;
}
public void setReadCount(int readCount) {
this.readCount = readCount;
}
}
DoaPagi:
private List<ModelDoa> getData() {
String[] data = getResources().getStringArray(R.array.doapagi);
String[] baca = getResources().getStringArray(R.array.bacapagi);
List<ModelDoa> list = new ArrayList<ModelDoa>();
for (int i = 0; i < data.length; i++) {
// Here is where you would set the value of readCount.
list.add(new ModelDoa(data[i], baca[i], ModelDoa.DOA_PAGI, i));
}
return list;
}

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I tried to use onBindViewHolder with payloads but I get the same result. I think I'm not calling this properly
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So I've been trying to fix this issue for so many hours but can't find the cause behind it.
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Check my app to find out what I'm talking about: https://play.google.com/store/apps/details?id=envision.apps.newsextra
To reproduce, search for something, click on any article from search results, then go back and click any article from main feed, search items are actually being loaded instead.
Here's my main fragment:
public class FeedsFragment extends Fragment implements ArticleListener, LocalMessageCallback {
private PullRefreshLayout pullRefreshLayout;
private RecyclerView recyclerView;
private FeedsAdapter adapter;
private View layout;
private ArrayList<Object> data = new ArrayList<>();
private List<Favorites> favorites = new ArrayList<>();
private List<Articles> articles = new ArrayList<>();
private boolean init = true;
private DataViewModel dataViewModel;
private NativeAdsManager mNativeAdsManager;
private String sort_date = SharedPrefernces.getFeedSortDate();
public static FeedsFragment newInstance() {
return new FeedsFragment();
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(#NonNull LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
layout = inflater.inflate(R.layout.feeds_fragment_layout, container, false);
init_views();
setRecyclerView();
initNativeAds();
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dataViewModel.getFavorites().observe(this, favorites -> {
if(favorites!=null){
this.favorites = favorites;
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});
dataViewModel.getArticles().observe(this, articles -> {
this.articles = articles;
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adapter.setData(data);
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fetchFeeds();
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pullRefreshLayout = layout.findViewById(R.id.pullRefreshLayout);
int[] colorScheme = getResources().getIntArray(R.array.refresh_color_scheme);
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pullRefreshLayout.setOnRefreshListener(this::fetchFeeds);
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recyclerView = (RecyclerView) layout.findViewById(R.id.recyclerView);
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recyclerView.setLayoutManager(mLayoutManager);
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loadMoreFeeds();
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mNativeAdsManager = new NativeAdsManager(getActivity(), getResources().getString(R.string.FACEBOOK_FEED_NATIVE_AD), 10);
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#Override
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setNetworkError();
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jsonData.put("interests", new JSONArray(interest));
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pullRefreshLayout.setRefreshing(false);
if(response.body()==null){
setNetworkError();
return;
}
try {
JSONObject res = new JSONObject(response.body());
// Add Your Logic
if(res.getString("status").equalsIgnoreCase("ok")){
//create a new object
data = new ArrayList<>();
if(SharedPrefernces.getActiveInterest().equalsIgnoreCase(getString(R.string.all_stories))){
data.add(new Info("Showing stories based on all your interests"));
}else{
data.add(new Info("Showing Stories on "+SharedPrefernces.getActiveInterest()));
}
sort_date = res.getString("date");
SharedPrefernces.setFeedSortDate(sort_date);
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dataViewModel.insertAllArticles(articles);
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e.printStackTrace();
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}
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public void onFailure(#NonNull Call<String> call, #NonNull Throwable throwable) {
Log.e("error",String.valueOf(throwable.getMessage()));
setNetworkError();
pullRefreshLayout.setRefreshing(false);
}
});
} catch (JSONException e) {
Log.e("parse error",e.getMessage());
e.printStackTrace();
}
}
private void loadMoreFeeds(){
// ToDo
}
private void setNetworkError(){
dataViewModel.deleteAllArticles();
dataViewModel.insertAllArticles(articles);
pullRefreshLayout.setRefreshing(false);
data = new ArrayList<>();
if(SharedPrefernces.getActiveInterest().equalsIgnoreCase(App.getContext().getString(R.string.all_stories))){
data.add(new Info("Showing stories based on all your interests"));
}else{
data.add(new Info("Showing stories on "+SharedPrefernces.getActiveInterest()));
}
data.add(new Error(""));
adapter.setData(data);
}
#Override
public void OnItemClick(Articles article) {
//List<Integer> contestWinners = data.subList(0, 5);
int position = 0;
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position = this.articles.indexOf(arts);
}
}
Gson gson = new Gson();
String json = gson.toJson(article);
Intent intent = new Intent(getActivity(), FeedViewerActivity.class);
intent.putExtra("position", position);
intent.putExtra("article",json);
intent.putExtra(FeedViewerActivity.VIEW_TYPE, Constants.ARTICLE_VIEW);
intent.putExtra(FeedViewerActivity.VIEW_SIZE, get_feeds_view_size(this.articles,position));
startActivity(intent);
Objects.requireNonNull(getActivity()).overridePendingTransition(R.anim.slide_left_in, R.anim.still);
}
#Override
public void OnPinClick(Articles articles,String action) {
if(articles==null)return;
if(action.equalsIgnoreCase(getResources().getString(R.string.add_pin))){
dataViewModel.insertFavorites(ObjectMapper.mapFavorites(articles));
}else {
dataViewModel.deleteFavorite(ObjectMapper.mapFavorites(articles).getId());
}
}
#Override
public void OnShareClick(Articles articles) {
Intent share = new Intent(android.content.Intent.ACTION_SEND);
share.setType("text/plain");
share.putExtra(Intent.EXTRA_SUBJECT, articles.getTitle());
share.putExtra(Intent.EXTRA_TEXT, articles.getLink());
startActivity(Intent.createChooser(share, "Share Article"));
}
#Override
public boolean IsPinned(Articles articles) {
for (Favorites fav: favorites) {
if(fav.getId() == articles.getId()){
return true;
}
}
return false;
}
#Override
public void requestAds(int position) {
NativeAd ad = mNativeAdsManager.nextNativeAd();
if(ad!=null){
adapter.setAd(ad,position);
}
}
#Override
public void loadSingleFeedsActivity(Articles articles) {
Gson gson = new Gson();
String myJson = gson.toJson(articles);
Intent intent = new Intent(getActivity(), FeedSourceActivity.class);
intent.putExtra("article", myJson);
startActivity(intent);
}
#Override
public boolean isSingleFeedsActivity() {
return false;
}
#Override
public void onDestroy() {
LocalMessageManager.getInstance().send(R.id.remove_listener);
LocalMessageManager.getInstance().removeListener(this);
super.onDestroy();
}
#Override
public void onStart() {
super.onStart();
LocalMessageManager.getInstance().addListener(this);
}
#Override
public void handleMessage(#NonNull LocalMessage localMessage) {
if(localMessage.getId() == R.id.reload_feeds){
pullRefreshLayout.setRefreshing(true);
fetchFeeds();
SharedPrefernces.setReloadArticles(false);
}
if(localMessage.getId() == R.id.scroll_feeds_to_top){
recyclerView.smoothScrollToPosition(0);
}
}
}
Adapter:
public class FeedsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> implements View.OnClickListener {
private ArrayList<Object> data = new ArrayList<>();
private Context context;
private int lastItemPosition = -1;
private final int VIEW_TYPE_HEADER = 1;
private final int VIEW_TYPE_LIST = 2;
private final int VIEW_TYPE_LOADER = 3;
private final int VIEW_TYPE_NETWORK_ERROR = 4;
private final int VIEW_TYPE_INFO = 5;
private final int VIEW_TYPE_AD = 6;
private boolean isLoading = false;
private LoadMoreListener loadMoreListener;
private int visibleThreshold = 2;//visible items before loading next feeds
private int firstVisibleItem,lastVisibleItem, totalItemCount;
private ArticleListener articleListener;
public FeedsAdapter(Context context, RecyclerView mRecyclerView, ArticleListener articleListener) {
this.context=context;
this.articleListener = articleListener;
final LinearLayoutManager linearLayoutManager = (LinearLayoutManager) mRecyclerView.getLayoutManager();
mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
#Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
LocalMessageManager.getInstance().send(R.id.recyclerview_scroll);
firstVisibleItem = linearLayoutManager.findFirstVisibleItemPosition();
totalItemCount = linearLayoutManager.getItemCount();
lastVisibleItem = linearLayoutManager.findLastVisibleItemPosition();
if ((firstVisibleItem + Constants.ADS.NUMBER_OF_ITEMS_BEFORE_REQUEST_AD) % Constants.ADS.LOAD_ADS_AT_POSITION == 0){
//
int pos = firstVisibleItem + Constants.ADS.NUMBER_OF_ITEMS_BEFORE_REQUEST_AD;
if(pos > lastItemPosition && data.size()>pos && data.get(pos - 1) != null/*dont load ad if we r currently making a request*/) {
if (!(data.get(pos) instanceof NativeAd)) {
articleListener.requestAds(pos);
}
}
}
if (!isLoading && NetworkUtil.hasConnection(context)) {
if (totalItemCount <= (lastVisibleItem + visibleThreshold)) {
if (loadMoreListener != null) {
loadMoreListener.onLoadMore();
}
isLoading = true;
}
}
}
});
}
#Override
public int getItemViewType(int position) {
if(data.get(position) instanceof Error)return VIEW_TYPE_NETWORK_ERROR;
if(data.get(position) instanceof Info)return VIEW_TYPE_INFO;
if(data.get(position) instanceof NativeAd)return VIEW_TYPE_AD;
if(SharedPrefernces.get_feed_images_show()
&& SharedPrefernces.get_feed_type() == 1
&& position==1 && data.get(position) instanceof Articles){
return VIEW_TYPE_HEADER;
}
if(data.get(position) == null)return VIEW_TYPE_LOADER;
return VIEW_TYPE_LIST;
}
public void setData(ArrayList<Object> objectList) {
Log.e("objectList size",String.valueOf(objectList.size()));
this.data.clear();
this.data.addAll(objectList);
Log.e("data size",String.valueOf(data.size()));
this.notifyDataSetChanged();
}
public void setMoreData(ArrayList<Articles> articles) {
//int start = data.size() + 2;
data.addAll(articles);
//this.notifyItemRangeInserted(start, articles.size());
this.notifyDataSetChanged();
}
public void setAd(NativeAd ad, int pos) {
data.add(pos, ad);
this.notifyItemInserted(pos);
}
#Override
public int getItemCount() {
return data != null ? data.size() : 0;
}
#Override
public void onBindViewHolder(#NonNull RecyclerView.ViewHolder holder, final int position) {
lastItemPosition = position;
//Log.e("view type",String.valueOf(holder.getItemViewType()));
switch (holder.getItemViewType()) {
case VIEW_TYPE_LIST: case VIEW_TYPE_HEADER:
final ArticleViewHolder viewHolder = (ArticleViewHolder) holder;
viewHolder.bindTo((Articles) data.get(position));
break;
case VIEW_TYPE_LOADER:
final ViewLoader viewLoader = (ViewLoader) holder;
viewLoader.rotateLoading.start();
break;
case VIEW_TYPE_NETWORK_ERROR:
ViewError viewError = (ViewError) holder;
if(SharedPrefernces.getUseNightMode()){
viewError.img.setColorFilter(App.getContext().getResources().getColor(R.color.white));
}else{
viewError.img.setColorFilter(App.getContext().getResources().getColor(R.color.black));
}
break;
case VIEW_TYPE_INFO:
final ViewInfo viewInfo = (ViewInfo) holder;
Info info = (Info)data.get(position);
viewInfo.body.setText(info.getContent());
break;
case VIEW_TYPE_AD:
final AdsViewHolder adsViewHolder = (AdsViewHolder) holder;
NativeAd nativeAd = (NativeAd)data.get(position);
adsViewHolder.bind(nativeAd);
break;
}
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int i) {
RecyclerView.ViewHolder viewHolder = null;
LayoutInflater inflater = LayoutInflater.from(context);
switch (i) {
case VIEW_TYPE_HEADER:
View v = inflater.inflate(R.layout.feeds_header, parent, false);
viewHolder = new ArticleViewHolder(v, articleListener);
break;
case VIEW_TYPE_LIST:
View va;
if(SharedPrefernces.get_feed_images_show() && SharedPrefernces.get_feed_type()==0){
va = inflater.inflate(R.layout.large_image_feeds_list, parent, false);
}else{
va = inflater.inflate(R.layout.feeds_list, parent, false);
}
viewHolder = new ArticleViewHolder(va, articleListener);
break;
case VIEW_TYPE_LOADER:
View ld = inflater.inflate(R.layout.loader, parent, false);
viewHolder = new ViewLoader(ld);
break;
case VIEW_TYPE_NETWORK_ERROR:
View ne = inflater.inflate(R.layout.no_stories, parent, false);
viewHolder = new ViewError(ne);
break;
case VIEW_TYPE_INFO:
View info = inflater.inflate(R.layout.info, parent, false);
viewHolder = new ViewInfo(info);
break;
case VIEW_TYPE_AD:
View ads = inflater.inflate(R.layout.ad_item_large, parent, false);
viewHolder = new AdsViewHolder(ads);
break;
}
return viewHolder;
}
#Override
public void onClick(View view) {
//int pos = (int) view.getTag();
switch (view.getId()){
case R.id.pin:
break;
case R.id.share:
break;
}
}
public class ViewLoader extends RecyclerView.ViewHolder {
private RotateLoading rotateLoading;
ViewLoader(View view) {
super(view);
rotateLoading = (RotateLoading) view.findViewById(R.id.rotateloading);
}
}
public class ViewError extends RecyclerView.ViewHolder {
private ImageView img;
ViewError(View view) {
super(view);
img = view.findViewById(R.id.img);
}
}
public class ViewInfo extends RecyclerView.ViewHolder {
private TextView body;
ViewInfo(View view) {
super(view);
body = view.findViewById(R.id.body);
}
}
public void setLoaded(){
data.remove(data.size()-1);
this.notifyItemRemoved(data.size()-1);
isLoading = false;
}
public void setLoadMoreListener(LoadMoreListener loadMoreListener) {
this.loadMoreListener = loadMoreListener;
}
public void setLoader(){
data.add(null);
this.notifyItemInserted(data.size()-1);
}
}
Search Adapter:
public class SearchAdapter extends RecyclerView.Adapter< RecyclerView.ViewHolder>{
private List<Object> items = new ArrayList<>();
private final int VIEW_TYPE_MEDIA = 0;
private final int VIEW_TYPE_LOADING = 1;
private final int VIEW_TYPE_AD = 2;
private SearchClickListener searchClickListener;
private LoadMoreListener mOnLoadMoreListener;
private boolean isLoading;
private int visibleThreshold = 2;
public int firstVisibleItem,lastVisibleItem, totalItemCount;
private int lastItemPosition = -1;
public SearchAdapter(RecyclerView mRecyclerView, SearchClickListener searchClickListener) {
this.searchClickListener = searchClickListener;
final LinearLayoutManager linearLayoutManager = (LinearLayoutManager) mRecyclerView.getLayoutManager();
mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
#Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
firstVisibleItem = linearLayoutManager.findFirstVisibleItemPosition();
totalItemCount = linearLayoutManager.getItemCount();
lastVisibleItem = linearLayoutManager.findLastVisibleItemPosition();
if ((firstVisibleItem + Constants.ADS.NUMBER_OF_ITEMS_BEFORE_REQUEST_AD) % Constants.ADS.LOAD_ADS_AT_POSITION == 0){
//
int pos = firstVisibleItem + Constants.ADS.NUMBER_OF_ITEMS_BEFORE_REQUEST_AD;
if(pos > lastItemPosition && items.size()>pos && items.get(pos - 1) != null/*dont load ad if we r currently making a request*/) {
if (!(items.get(pos) instanceof NativeAd)) {
searchClickListener.requestAds(pos);
}
}
}
if (!isLoading && NetworkUtil.hasConnection(App.getContext())) {
if (totalItemCount <= (lastVisibleItem + visibleThreshold)) {
if (items.size() > 1 && mOnLoadMoreListener != null) {
mOnLoadMoreListener.onLoadMore();
}
isLoading = true;
}
}
}
});
}
public void setMoreAdapter(List<Search> data) {
items.addAll(data);
//items.addAll((items.size()-1),data);
this.notifyDataSetChanged();
}
public void setAdapter(List<Search> data) {
items = new ArrayList<>();
items.addAll(data);
this.notifyDataSetChanged();
}
#Override
public int getItemCount() {
return items != null ? items.size() : 0;
}
#Override
public int getItemViewType(int position) {
if(items.get(position) instanceof NativeAd)return VIEW_TYPE_AD;
if(items.get(position)==null && position == (items.size()-1)){
return VIEW_TYPE_LOADING;
}else{
return VIEW_TYPE_MEDIA;
}
}
public void setLoader() {
items.add(null);
this.notifyItemInserted(items.size() - 1);
}
public void setAd(NativeAd ad, int pos) {
items.add(pos, ad);
this.notifyItemInserted(pos);
}
public void removeLoader() {
items.remove(items.size() - 1);
this.notifyItemRemoved(items.size());
}
public void setOnLoadMoreListener(LoadMoreListener mOnLoadMoreListener) {
this.mOnLoadMoreListener = mOnLoadMoreListener;
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
RecyclerView.ViewHolder viewHolder = null;
LayoutInflater inflater = LayoutInflater.from(viewGroup.getContext());
switch (i) {
case VIEW_TYPE_MEDIA:
View v = inflater.inflate(R.layout.search_list, viewGroup, false);
viewHolder = new SearchViewHolder(v,searchClickListener);
viewHolder.itemView.setClickable(true);
break;
case VIEW_TYPE_LOADING:
View vL = inflater.inflate(R.layout.loader, viewGroup, false);
viewHolder = new LoadingViewHolder(vL);
break;
case VIEW_TYPE_AD:
View ads = inflater.inflate(R.layout.ad_item_small, viewGroup, false);
viewHolder = new AdsViewHolder(ads);
break;
}
return viewHolder;
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int i) {
lastItemPosition = i;
switch (holder.getItemViewType()) {
case VIEW_TYPE_LOADING:
LoadingViewHolder loadingViewHolder = (LoadingViewHolder) holder;
loadingViewHolder.progressBar.start();
break;
case VIEW_TYPE_MEDIA:
final SearchViewHolder viewHolder = (SearchViewHolder) holder;
final Search ci = (Search)items.get(i);
viewHolder.bindTo(ci);
break;
case VIEW_TYPE_AD:
final AdsViewHolder adsViewHolder = (AdsViewHolder) holder;
NativeAd nativeAd = (NativeAd)items.get(i);
adsViewHolder.bind(nativeAd);
break;
}
}
private static class LoadingViewHolder extends RecyclerView.ViewHolder {
private RotateLoading progressBar;
private LoadingViewHolder(View itemView) {
super(itemView);
progressBar = itemView.findViewById(R.id.rotateloading);
}
}
public void setLoaded() {
isLoading = false;
}
public interface SearchClickListener {
void onClick(Search search);
void requestAds(int position);
}
}
Seriously any help will be greatly appreciated.

Due to the character limit, I'm posting my viewHolder code here as a comment.
ArticleViewHolder:
public class ArticleViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, LocalMessageCallback {
private Articles articles;
private TextView title,interest,time,source,content;
private LinearLayout revealView;
private ImageView thumbnail,pin,source_link;
private Animation alphaAnimation;
private float pixelDensity;
private boolean flag = false;
private RelativeLayout revealLayout,layoutButtons;
private ArticleListener articleListener;
private CardView cardView;
private String pin_action = "add";
public ArticleViewHolder(View view, ArticleListener articleListener) {
super(view);
this.articleListener = articleListener;
pixelDensity = App.getContext().getResources().getDisplayMetrics().density;
alphaAnimation = AnimationUtils.loadAnimation(App.getContext(), R.anim.alpha_anim);
LocalMessageManager.getInstance().addListener(this);
FrameLayout source_holder = view.findViewById(R.id.source_holder);
cardView = view.findViewById(R.id.card_view);
source_link = view.findViewById(R.id.source_link);
revealLayout = view.findViewById(R.id.revealLayout);
revealView = view.findViewById(R.id.revealView);
layoutButtons = view.findViewById(R.id.layoutButtons);
title = view.findViewById(R.id.title);
content = view.findViewById(R.id.content);
interest = view.findViewById(R.id.interest);
thumbnail = view.findViewById(R.id.thumbnail);
time = view.findViewById(R.id.time);
source = view.findViewById(R.id.source);
ImageView reveal = view.findViewById(R.id.reveal);
ImageView close = view.findViewById(R.id.close);
pin = view.findViewById(R.id.pin);
ImageView share = view.findViewById(R.id.share);
reveal.setOnClickListener(this);
close.setOnClickListener(this);
pin.setOnClickListener(this);
share.setOnClickListener(this);
title.setOnClickListener(this);
content.setOnClickListener(this);
thumbnail.setOnClickListener(this);
source_holder.setOnClickListener(this);
}
public void bindTo(Articles articles) {
this.articles = articles;
title.setText(articles.getTitle());
content.setText(articles.getContent().replace("\n", " ").replace("\r", " "));
interest.setText(articles.getInterest());
//Log.e("thumbnail",String.valueOf(articles.getThumbnail()));
if(SharedPrefernces.get_feed_images_show()) {
thumbnail.setVisibility(View.VISIBLE);
ImageLoader.loadImage(thumbnail, articles.getThumbnail());
}else{
thumbnail.setVisibility(View.GONE);
}
time.setText(TimUtil.timeAgo(articles.getTimeStamp()));
String _source = articles.getSource();
source.setText(_source.substring(0,1).toUpperCase() + _source.substring(1).toLowerCase());
if(articleListener.IsPinned(articles)){
set_pin_view(true);
pin_action = App.getContext().getResources().getString(R.string.remove_pin);
}else{
set_pin_view(false);
pin_action = App.getContext().getResources().getString(R.string.add_pin);
}
if(flag){
revealView.setVisibility(View.VISIBLE);
layoutButtons.setVisibility(View.VISIBLE);
}else{
revealView.setVisibility(View.GONE);
layoutButtons.setVisibility(View.GONE);
}
if(articleListener.isSingleFeedsActivity()){
source_link.setVisibility(View.GONE);
}else{
source_link.setVisibility(View.VISIBLE);
}
if(!SharedPrefernces.getUseNightMode()){
cardView.setCardBackgroundColor(App.getContext().getResources().getColor(R.color.material_grey_100));
}
}
private void set_pin_view(boolean isPinned){
Drawable mDrawable;
if(!isPinned){
mDrawable = ContextCompat.getDrawable(App.getContext(),R.drawable.pin_outline);
mDrawable.setColorFilter(new
PorterDuffColorFilter(App.getContext().getResources().getColor(R.color.material_grey_200), PorterDuff.Mode.SRC_IN));
}else{
mDrawable = ContextCompat.getDrawable(App.getContext(),R.drawable.pin_outline);
mDrawable.setColorFilter(new
PorterDuffColorFilter(App.getContext().getResources().getColor(R.color.colorAccent), PorterDuff.Mode.SRC_IN));
}
pin.setImageDrawable(mDrawable);
}
#Override
public void onClick(View view) {
LocalMessageManager.getInstance().send(R.id.hide_reveal_layout,articles.getId());
if (articleListener != null) {
if(view.getId() == R.id.reveal || view.getId() == R.id.close){
revealLayout();
}else if(view.getId() == R.id.source_holder){
articleListener.loadSingleFeedsActivity(articles);
}else if(view.getId() == R.id.pin){
articleListener.OnPinClick(articles,pin_action);
if(pin_action.equalsIgnoreCase(App.getContext().getResources().getString(R.string.add_pin))){
pin_action = App.getContext().getResources().getString(R.string.remove_pin);
set_pin_view(true);
}else{
pin_action = App.getContext().getResources().getString(R.string.add_pin);
set_pin_view(false);
}
revealLayout();
}else if(view.getId() == R.id.share){
articleListener.OnShareClick(articles);
revealLayout();
}else if(view.getId() == R.id.title || view.getId() == R.id.thumbnail|| view.getId() == R.id.content) {
articleListener.OnItemClick(articles);
}
}
}
private void revealLayout() {
/*
MARGIN_RIGHT = 16;
FAB_BUTTON_RADIUS = 28;
*/
boolean isAttachedToWindow = ViewCompat.isAttachedToWindow(revealView);
if (isAttachedToWindow) {
int x = revealLayout.getRight();
int y = revealLayout.getBottom();
x -= ((28 * pixelDensity) + (16 * pixelDensity));
int hypotenuse = (int) Math.hypot(revealLayout.getWidth(), revealLayout.getHeight());
if (!flag) {
RelativeLayout.LayoutParams parameters = (RelativeLayout.LayoutParams)
revealView.getLayoutParams();
parameters.height = revealLayout.getHeight();
revealView.setLayoutParams(parameters);
Animator anim = ViewAnimationUtils.createCircularReveal(revealView, x, y, 0, hypotenuse);
anim.setDuration(200);
anim.addListener(new Animator.AnimatorListener() {
#Override
public void onAnimationStart(Animator animator) {
}
#Override
public void onAnimationEnd(Animator animator) {
layoutButtons.setVisibility(View.VISIBLE);
layoutButtons.startAnimation(alphaAnimation);
}
#Override
public void onAnimationCancel(Animator animator) {
}
#Override
public void onAnimationRepeat(Animator animator) {
}
});
revealView.setVisibility(View.VISIBLE);
anim.start();
flag = true;
} else {
Animator anim = ViewAnimationUtils.createCircularReveal(revealView, x, y, hypotenuse, 0);
anim.setDuration(200);
anim.addListener(new Animator.AnimatorListener() {
#Override
public void onAnimationStart(Animator animator) {
}
#Override
public void onAnimationEnd(Animator animator) {
revealView.setVisibility(View.GONE);
layoutButtons.setVisibility(View.GONE);
}
#Override
public void onAnimationCancel(Animator animator) {
}
#Override
public void onAnimationRepeat(Animator animator) {
}
});
anim.start();
flag = false;
}
}
}
#Override
public void handleMessage(#NonNull LocalMessage localMessage) {
switch (localMessage.getId()){
case R.id.hide_reveal_layout:
int id = localMessage.getArg1();
if(flag && id != articles.getId()){
revealLayout();
}
break;
case R.id.recyclerview_scroll:
if(flag){
revealLayout();
}
break;
}
}
}

Issue with RecyclerView data interchanges while scrolling

There is Scroll by loading RecyclerView(Lazy loading). When an item quantity is incremented by adding the plus button to say 10. after loading the next set of items while scrolling, The item quantity(10) is reset to 1 and 10 will be displayed for another item.
In the same sequence, if the unit is changed(by the spinner) to another unit the corresponding image will be loaded but after scrolling the unit and image will change back to initial unit.
When the image of an item is clicked, a dialog will show the details of the selected item . Sometimes the image in the dialog is correct but image of the RecyclerView is incorrect, will take time to load or will not load.
public class ArticleRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>
implements Filterable {
private static final String TAG = "ArticleAdapter";
private final int VIEW_TYPE_ITEM = 0;
private final int VIEW_TYPE_LOADING = 1;
private Context context;
private Dialog articleDescriptionDialog;
private UOMOffersLIistViewAdapter uomOffersLIistViewAdapter;
private List<ArticleDetails> articleDetailsList;
private HomeActivityViewModel homeActivityViewModel;
private ItemFilter itemFilter = new ItemFilter();
private GetViewListener getViewListener;
private int lastPosition = -1;
private OnLoadMoreListener loadMoreListener;
private boolean isLoading = false, isMoreDataAvailable = true;
/*
* isLoading - to set the remote loading and complete status to fix back to back load more call
* isMoreDataAvailable - to set whether more data from server available or not.
* It will prevent useless load more request even after all the server data loaded
* */
public ArticleRecyclerViewAdapter(Context context, List<ArticleDetails> articleDetailsList
, HomeActivityViewModel homeActivityViewModel, Fragment fragment) {
this.context = context;
this.articleDetailsList = articleDetailsList;
this.homeActivityViewModel = homeActivityViewModel;
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(context);
if (viewType == VIEW_TYPE_ITEM) {
return new ItemViewHolder(inflater.inflate(R.layout.recycler_view_article_layout, parent, false));
} else {
return new LoadHolder(inflater.inflate(R.layout.item_loading_layout, parent, false));
}
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int position) {
if (position >= getItemCount() - 1 && isMoreDataAvailable && !isLoading && loadMoreListener != null) {
isLoading = true;
loadMoreListener.onLoadMore();
}
if (getItemViewType(position) == VIEW_TYPE_ITEM) {
populateItemRows((ItemViewHolder) viewHolder, position);
}
//No else part needed as load holder doesn't bind any data
}
#Override
public int getItemViewType(int position) {
if (articleDetailsList.get(position).isLoading()) {
return VIEW_TYPE_LOADING;
} else {
return VIEW_TYPE_ITEM;
}
}
#Override
public int getItemCount() {
return articleDetailsList.size();
}
#Override
public long getItemId(int position) {
return position;
}
/* VIEW HOLDERS */
static class ItemViewHolder extends RecyclerView.ViewHolder {
private ImageView stockImageView, copyStockImageView;
private TextView articleNameTextView, articleStockAmountTextView, articleOfferTextView, addCartTextView;
private NumberPicker articleStockQuantityNumberPicker;
private Spinner articleStockSpinner;
private ImageButton offerInfoImageButton;
private int selectedStockItemPosition, stockQuantity;
private String articleStockQuantityString = "";
private Integer stockId;
private double stockAmount;
public ItemViewHolder(View itemView) {
super(itemView);
stockImageView = itemView.findViewById(R.id.stockImgv);
copyStockImageView = itemView.findViewById(R.id.copyStockImgv);//for fly to cart animation
articleNameTextView = itemView.findViewById(R.id.articleNameTxt);
articleStockAmountTextView = itemView.findViewById(R.id.stock_amount_txt);
articleOfferTextView = itemView.findViewById(R.id.offer_txt);
offerInfoImageButton = itemView.findViewById(R.id.offerInfo_imgbtn);
addCartTextView = itemView.findViewById(R.id.addCart_txt);
articleStockSpinner = itemView.findViewById(R.id.stock_spnr);
articleStockQuantityNumberPicker = itemView.findViewById(R.id.qty_numberPicker);
articleStockQuantityNumberPicker.setMin(1);
articleStockQuantityNumberPicker.setUnit(1);
// no limit.
// viewHolder.quantityNumberPicker.setMax(15);
}
}
static class LoadHolder extends RecyclerView.ViewHolder {
public LoadHolder(View itemView) {
super(itemView);
}
}
public void setMoreDataAvailable(boolean moreDataAvailable) {
isMoreDataAvailable = moreDataAvailable;
}
/**
* notifyDataSetChanged is final method so we can't override it
* call articleRecyclerViewAdapter.notifyDataChanged(); after update the list
*/
public void notifyDataChanged() {
notifyDataSetChanged();
isLoading = false;
}
public interface OnLoadMoreListener {
void onLoadMore();
}
public void setLoadMoreListener(OnLoadMoreListener loadMoreListener) {
this.loadMoreListener = loadMoreListener;
}
private void populateItemRows(ItemViewHolder itemViewHolder, int itemPos) {
int itemPosition = itemViewHolder.getAdapterPosition();
try {
itemViewHolder.copyStockImageView.setImageResource(R.drawable.error_logo);//initialize with error logo.
itemViewHolder.stockImageView.setImageResource(R.drawable.error_logo);//initialize with error logo.
} catch (Exception e) {
e.printStackTrace();
}
itemViewHolder.articleNameTextView.setText(articleDetailsList.get(itemPosition).getArticleName());
itemViewHolder.articleNameTextView.setSelected(true);//for marquee
itemViewHolder.articleOfferTextView.setSelected(true);//for marquee
itemViewHolder.articleStockAmountTextView.setSelected(true);//for marquee
itemViewHolder.articleOfferTextView.setVisibility(View.GONE);//for demo (now no offer and schemes).
itemViewHolder.offerInfoImageButton.setVisibility(View.GONE);//for demo
setStockSpinner(itemViewHolder, itemPosition);
itemViewHolder.offerInfoImageButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//setUOMOffersDIalog(articleDetailsList.get(itemPosition));
}
});
itemViewHolder.articleStockQuantityNumberPicker.setValueChangedListener(new ValueChangedListener() {
#Override
public void valueChanged(int quantity, ActionEnum action) {
itemViewHolder.articleStockQuantityString = Integer.valueOf(quantity).toString();
}
});
itemViewHolder.addCartTextView.setOnClickListener(new SingleClickListener() {
#Override
public void onSingleClick(View v) {
itemViewHolder.articleStockQuantityString = Integer.valueOf(itemViewHolder.articleStockQuantityNumberPicker.getValue()).toString();
itemViewHolder.stockQuantity = Integer.valueOf(itemViewHolder.articleStockQuantityString);
itemViewHolder.stockAmount = articleDetailsList.get(itemPosition).getStockDetailsList()
.get(itemViewHolder.articleStockSpinner.getSelectedItemPosition()).getmRP();
itemViewHolder.stockId = articleDetailsList.get(itemPosition).getStockDetailsList()
.get(itemViewHolder.articleStockSpinner.getSelectedItemPosition()).getStockId();
Double stockDiscountAmount = 0.0;
//TODO: 26-Oct-19 discount hardcoded.
if (itemViewHolder.stockQuantity > 0) {
addItemToCart(itemViewHolder, itemViewHolder.stockId, itemViewHolder.stockQuantity, itemViewHolder.stockAmount, stockDiscountAmount);
} else {
//not using (used for when user enter invalid quantity)
MDToast.makeText(context, FinalVariables.ToastMessages.VALID_QUANTITY
, MDToast.LENGTH_SHORT, MDToast.TYPE_WARNING).show();
}
}
});
itemViewHolder.stockImageView.setOnClickListener(new SingleClickListener() {
#Override
public void onSingleClick(View v) {
itemViewHolder.articleOfferTextView.setVisibility(View.VISIBLE);
itemViewHolder.articleOfferTextView.setText( ""+ itemViewHolder.stockQuantity);
DialogUtils.showArticleDescription(context, articleDetailsList.get(itemPosition)
, itemViewHolder.selectedStockItemPosition, new DialogButtonClickListener() {
#Override
public void positiveButtonClick() {
//do nothing.
}
});
}
});
// Here you apply the animation when the view is bound
setAnimation(itemViewHolder.itemView, itemPosition);
}
private void setStockSpinner(ItemViewHolder itemViewHolder, int itemPosition) {
UOMSpinnerAdapter uomSpinnerAdapter = new UOMSpinnerAdapter(context, R.layout.spinner_uom_layout
, StringUtils.makeUomStringArrayForSpinner(articleDetailsList.get(itemPosition).getStockDetailsList()));
itemViewHolder.articleStockSpinner.setAdapter(uomSpinnerAdapter);
// Setting OnItemClickListener to the Spinner
itemViewHolder.articleStockSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
itemViewHolder.selectedStockItemPosition = position;
itemViewHolder.articleStockAmountTextView.setText(StringUtils.addAED(StringUtils.round3(
+articleDetailsList.get(itemPosition)
.getStockDetailsList().get(position).getmRP())));
//show image from link
try {
if (!articleDetailsList.get(itemPosition).getStockDetailsList().
get(position).getStockImageDetailsList().isEmpty()) {
ImageUtils.setGlide(context, itemViewHolder.stockImageView
, articleDetailsList.get(itemPosition).getStockDetailsList().
get(position).getStockImageDetailsList().get(0).getStockImage());
//same as stockImageView but used to animate fly to cart
ImageUtils.setGlide(context, itemViewHolder.copyStockImageView
, articleDetailsList.get(itemPosition).getStockDetailsList().
get(position).getStockImageDetailsList().get(0).getStockImage());
} else {
}
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
if (articleDetailsList.get(itemPosition).getStockDetailsList().size() > 0)
itemViewHolder.articleStockAmountTextView.setText(StringUtils.addAED(
StringUtils.round3(+articleDetailsList.get(itemPosition).getStockDetailsList().get(0).getmRP())));
itemViewHolder.selectedStockItemPosition = itemViewHolder.articleStockSpinner.getSelectedItemPosition();
}
});
}
private void addItemToCart(ItemViewHolder itemViewHolder, Integer stockId, Integer stockQuantity
, Double stockAmount, Double stockDiscountAmount) {
homeActivityViewModel.isItemAlreadyCarted(stockId
, new RetrieveDataListner() {
#Override
public void onDone(Object object) {
boolean isItemAlreadyCarted = (boolean) object;
if (!isItemAlreadyCarted) {//item not in cart,add to cart.
CartedItems cartedItem = new CartedItems();
cartedItem.setStockId(stockId);
cartedItem.setStockQuantity(stockQuantity);
cartedItem.setStockAmount(stockAmount);
cartedItem.setTotalAmount(CalcUtils.calculateTotalAmount(stockQuantity, stockAmount));
cartedItem.setNetAmount(CalcUtils.calculateNetAmount(stockQuantity
, stockAmount, stockDiscountAmount));
homeActivityViewModel.insertCartedItem(cartedItem
, new InsertDbSuccessListner() {
#Override
public void onSuccess() {
//set view to call back method for fly to cart animation
if (getViewListener != null){
getViewListener.onGetView(itemViewHolder.copyStockImageView);
}
itemViewHolder.articleStockQuantityNumberPicker.setValue(1);//reset item quantity in ui.
// TODO: 21-Mar-19 check fly to cart only in home activity or not
if (context instanceof MainActivity) {
MDToast.makeText(context, TextMessages.ITEM_ADDED
, MDToast.LENGTH_SHORT, MDToast.TYPE_SUCCESS).show();
} else if (context instanceof HomeActivity) {
try {
((HomeActivity) context).setCartDetails();
} catch (Exception e) {
e.printStackTrace();
}
}
}
#Override
public void onFailure() {
}
});
} else {//item already carted,asking to add new quantity to carted quantity.
DialogUtils.showConformAlertDialog1(context, TextMessages.ITEM_ALREADY_CARTED
, TextMessages.ITEM_ALREADY_CARTED_WARNING
, StringValues.NO, StringValues.YES, new DialogButtonClickListener() {
#Override
public void positiveButtonClick() {//adding new quantity to existing quantity.
//set view to call back method for fly to cart animation
if (getViewListener != null)
getViewListener.onGetView(itemViewHolder.copyStockImageView);
homeActivityViewModel.updateCartedItemWithExistingValues(stockId, stockQuantity
, CalcUtils.calculateTotalAmount(stockQuantity, stockAmount),
CalcUtils.calculateNetAmount(stockQuantity, stockAmount, stockDiscountAmount)
, null);
itemViewHolder.articleStockQuantityNumberPicker.setValue(1);//reset item quantity in ui.
}
#Override
public void negativeButtonClick() {
}
});
}
}
});
}
/**
* Here is the key method to apply the animation
*/
private void setAnimation(View viewToAnimate, int position) {
// If the bound view wasn't previously displayed on screen, it's animated
if (position > lastPosition) {
Animation animation = AnimationUtils.loadAnimation(context, R.anim.fall_down);
viewToAnimate.startAnimation(animation);
lastPosition = position;
}
}
/**
* register listener for get article image(copyStockImageView)
* for fly to cart animation.
* the view get back to the call back(categorizedArticleFragment)).
*
* #param getViewListener
*/
public void setGetViewListener(GetViewListener getViewListener) {
this.getViewListener = getViewListener;
}
#Override
public Filter getFilter() {
return itemFilter;
}
private class ItemFilter extends Filter {
#Override
protected FilterResults performFiltering(CharSequence constraint) {
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
final List<ArticleDetails> list = articleDetailsList;
int count = list.size();
final List<ArticleDetails> nlist = new ArrayList<ArticleDetails>(count);
ArticleDetails filterableString;
for (int i = 0; i < count; i++) {
filterableString = list.get(i);
if (filterableString.getArticleName().toLowerCase().contains(filterString)) {
nlist.add(filterableString);
}
}
results.values = nlist;
results.count = nlist.size();
return results;
}
#SuppressWarnings("unchecked")
#Override
protected void publishResults(CharSequence constraint, FilterResults results) {
articleDetailsList = (ArrayList<ArticleDetails>) results.values;
notifyDataSetChanged();
}
}
}
Fragments onCreate
#Override
public View onCreateView(#NonNull LayoutInflater layoutInflater, ViewGroup viewGroup,
Bundle savedInstanceState) {
context = viewGroup.getContext();
parentView = layoutInflater.inflate(R.layout.fragment_article, viewGroup, false);
homeActivityViewModel = getViewModel();
articleRecyclerView = parentView.findViewById(R.id.subcategory_rcylv);
Bundle bundle = getArguments();
Integer offset = bundle.getInt(TagNames.OFFSET, 0);
Integer numberOfRows = bundle.getInt(TagNames.NUMBER_OF_ROWS, FinalVariables.GETTING_DATA_COUNT_FROM_API);
filterTypeId = bundle.getInt(TagNames.FILTER_TYPE_ID, FilterTypes.SUGGESTED);
String filterText = bundle.getString(TagNames.FILTER_TEXT, "");
Integer categoryId = bundle.getInt(TagNames.CATEGORY_ID, 0);
initArticleRecyclerViewAdapter(articleDetailsList, filterText, categoryId, offset, numberOfRows);
return parentView;
}
Initializing Adapter
private void initArticleRecyclerViewAdapter(List<ArticleDetails> articleDetailsList
, String filterText, Integer categoryId, int offset, int numberOfRows) {
articleRecyclerViewAdapter = new ArticleRecyclerViewAdapter(context, this.articleDetailsList, homeActivityViewModel, this);
articleRecyclerViewAdapter.setLoadMoreListener(new ArticleRecyclerViewAdapter.OnLoadMoreListener() {
#Override
public void onLoadMore() {
articleRecyclerView.post(new Runnable() {
#Override
public void run() {
int index = ArticleFragment.this.articleDetailsList.size();
loadMore(filterText, categoryId, index, numberOfRows);
Log.e(TAG, "scrolling,index: " + index);
}
});
//Calling loadMore function in Runnable to fix the
// java.lang.IllegalStateException: Cannot call this method while RecyclerView is computing a layout or scrolling error
}
});
articleRecyclerView.setHasFixedSize(true);
articleRecyclerView.setLayoutManager(new GridLayoutManager(context, 3));
articleRecyclerView.setAdapter(articleRecyclerViewAdapter);
load(filterText, categoryId, offset, numberOfRows);
}
Loading data
private void loadMore(String filterText, Integer categoryId, int offset, int numberOfRows) {
//add loading progress view
articleDetailsList.add(new ArticleDetails(true));
articleRecyclerViewAdapter.notifyItemInserted(articleDetailsList.size() - 1);
Integer storeId = FileUtils.getPreferenceInt(context
, Preferences.CUSTOMER_PREFERENCE, TagNames.STORE_ID);
Integer distributionChannelId = FileUtils.getPreferenceInt(context
, Preferences.CUSTOMER_PREFERENCE, TagNames.DISTRIBUTION_CHANNEL_ID);
homeActivityViewModel.getAllStockItemByCustomer(
DeviceUtils.getCredential(context, ServiceNames.GET_ALL_STOCK_ITEM_BY_CUSTOMER)
, storeId, distributionChannelId, filterTypeId, filterText, categoryId, offset, numberOfRows
, new ApiCallbackListener() {
#Override
public void onSuccess(Object object) {
try {
if (object != null) {
if (object instanceof GetAllStockItemByCustomerStatusReturn) {
//otp generation failed,
GetAllStockItemByCustomerStatusReturn getAllStockItemByCustomerStatusReturn
= (GetAllStockItemByCustomerStatusReturn) object;
showGetAllStockItemByCustomerErrorDialog(getAllStockItemByCustomerStatusReturn);
} else if (object instanceof List) {
List<GetAllStockItemByCustomerResponseData> getAllStockItemByCustomerResponseDataList
= (List<GetAllStockItemByCustomerResponseData>) object;
//remove loading view
articleDetailsList.remove(articleDetailsList.size() - 1);
List<ArticleDetails> result = new ArrayList<>();
result = homeActivityViewModel.getArticles(getAllStockItemByCustomerResponseDataList);
homeActivityViewModel.insertAllStockItemByCustomer(context,filterTypeId
, getAllStockItemByCustomerResponseDataList, null);
if (result.size() > 0) {
//add loaded data
articleDetailsList.addAll(result);
} else {//result size 0 means there is no more data available at server
articleRecyclerViewAdapter.setMoreDataAvailable(false);
//telling articleRecyclerViewAdapter to stop calling load more as no more server data available
//Toast.makeText(context, "No More Data Available", Toast.LENGTH_LONG).show();
}
articleRecyclerViewAdapter.notifyDataChanged();
//should call the custom method articleRecyclerViewAdapter.notifyDataChanged here to get the correct loading status
} else {
MDToast.makeText(context, FinalVariables.ToastMessages.SOMETHING_WENT_WRONG
, MDToast.LENGTH_SHORT, MDToast.TYPE_WARNING).show();
}
} else {
MDToast.makeText(context, FinalVariables.ToastMessages.SOMETHING_WENT_WRONG
, MDToast.LENGTH_SHORT, MDToast.TYPE_WARNING).show();
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
private void load(String filterText, Integer categoryId, int offset, int numberOfRows) {
Integer storeId = FileUtils.getPreferenceInt(context
, Preferences.CUSTOMER_PREFERENCE, TagNames.STORE_ID);
Integer distributionChannelId = FileUtils.getPreferenceInt(context
, Preferences.CUSTOMER_PREFERENCE, TagNames.DISTRIBUTION_CHANNEL_ID);
homeActivityViewModel.getAllStockItemByCustomer(
DeviceUtils.getCredential(context, ServiceNames.GET_ALL_STOCK_ITEM_BY_CUSTOMER)
, storeId, distributionChannelId, filterTypeId, filterText, categoryId, offset, numberOfRows
, new ApiCallbackListener() {
#Override
public void onSuccess(Object object) {
try {
if (object != null) {
if (object instanceof GetAllStockItemByCustomerStatusReturn) {
GetAllStockItemByCustomerStatusReturn getAllStockItemByCustomerStatusReturn
= (GetAllStockItemByCustomerStatusReturn) object;
showGetAllStockItemByCustomerErrorDialog(getAllStockItemByCustomerStatusReturn);
} else if (object instanceof List) {
List<GetAllStockItemByCustomerResponseData> getAllStockItemByCustomerResponseDataList
= (List<GetAllStockItemByCustomerResponseData>) object;
if (!getAllStockItemByCustomerResponseDataList.isEmpty()) {
if (offset == 0 && getAllStockItemByCustomerResponseDataList.get(0)
.getCategoryID() == StatusCodes.INVALID_CODE
&& filterTypeId == FilterTypes.SUGGESTED) {
//shows all article from store (filter type 0) if no article is mapped in suggested.
filterTypeId = FilterTypes.ALL;
load(filterText, categoryId, offset, numberOfRows);
}
}
articleDetailsList.addAll(homeActivityViewModel.getArticles(getAllStockItemByCustomerResponseDataList));
homeActivityViewModel.insertAllStockItemByCustomer(context,filterTypeId
, getAllStockItemByCustomerResponseDataList, null);
articleRecyclerViewAdapter.notifyDataChanged();
} else {
}
} else {
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

Holder cardview change textview color error

i want to change color of my textview inside of cardview when its value is "kritis" or "kurang" but somehow everytime when my textview in position 0 and its value is either kritis or kurang it always change color textiew in position 0 and also position 7, and also when its in position 1 it will set color text view in position 8 too and so... and then i try to use logd to see howmany times my setcolor initiate and its only 1x (when changing color only position 1 and 7) or 2x (when changing color text position 0,1,7,8)(my cardview is inside recyclerview)
this is my adapter code
public class ListAdapter extends RecyclerView.Adapter<form_mhs_04_fragment2.ListAdapter.ViewHolder>
{
private ArrayList<DataNote> dataList;
public ListAdapter(ArrayList<DataNote> data)
{
this.dataList = data;
}
public class ViewHolder extends RecyclerView.ViewHolder
{
TextView textViewIPKcap;
TextView textViewIPKkat;
TextView textViewSKScap;
TextView textViewSKSkat;
TextView textViewCatatan;
TextView textViewSemester;
public ViewHolder(View itemView)
{
super(itemView);
this.textViewSemester = (TextView) itemView.findViewById(R.id.TV04_cardview_semester);
this.textViewIPKcap = (TextView) itemView.findViewById(R.id.TV04_cardview_ipkcap);
this.textViewIPKkat = (TextView) itemView.findViewById(R.id.TV04_cardview_ipkkat);
this.textViewSKScap = (TextView) itemView.findViewById(R.id.TV04_cardview_skscap);
this.textViewSKSkat = (TextView) itemView.findViewById(R.id.TV04_cardview_skskat);
this.textViewCatatan = (TextView) itemView.findViewById(R.id.TV04_cardview_catatan);
}
}
#Override
public form_mhs_04_fragment2.ListAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.form_mhs_04_cardview, parent, false);
form_mhs_04_fragment2.ListAdapter.ViewHolder viewHolder = new form_mhs_04_fragment2.ListAdapter.ViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(form_mhs_04_fragment2.ListAdapter.ViewHolder holder, final int position)
{
holder.textViewIPKkat.setText(dataList.get(position).getIpkkat());
holder.textViewIPKcap.setText("IPK : "+dataList.get(position).getIpkcap());
holder.textViewSKSkat.setText(dataList.get(position).getSkskat());
holder.textViewSKScap.setText("SKS : "+dataList.get(position).getSkscap()+" SKS");
holder.textViewCatatan.setText(dataList.get(position).getCatatan());
holder.textViewSemester.setText(dataList.get(position).getSemester());
if(holder.textViewSKSkat.getText().equals("kritis") || holder.textViewSKSkat.getText().equals("kurang")){
holder.textViewSKSkat.setTextColor(Color.rgb(255,0,0));
Log.d("testing", "ayayaya");
}
if(holder.textViewIPKkat.getText().equals("kritis") || holder.textViewIPKkat.getText().equals("kurang")){
holder.textViewIPKkat.setTextColor(Color.rgb(255,0,0));
Log.d("testing", "ayayaya");
}
holder.itemView.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
}
});
}
#Override
public int getItemCount()
{
return dataList.size();
}
}
this is how i send data to adapter
public void initListView(String UserId){
Call<ListForm4Response> getListForm4 = mApiService.getListForm4(
UserId
);
getListForm4.enqueue(new Callback<ListForm4Response>() {
#Override
public void onResponse(Call<ListForm4Response> call, Response<ListForm4Response> response) {
boolean iserror_ = response.body().getError();
if (iserror_ == false) {
List<List_Form4> list = new ArrayList<>();
list = response.body().getEvalMhsf4();
ipk_cap = new String[list.size()];
ipk_kat = new String[list.size()];
sks_cap = new String[list.size()];
sks_kat = new String[list.size()];
catatan = new String[list.size()];
semester = new String[list.size()];
for (int i =0;i<list.size();i++) {
ipk_cap[i] = list.get(i).getIpkMhs();
ipk_kat[i] = list.get(i).getKategoriIpk();
sks_cap[i] = String.valueOf(list.get(i).getSksMhs());
sks_kat[i] = list.get(i).getKategoriSks();
catatan[i] = list.get(i).getCatatan();
semester[i] = list.get(i).getSemester();
}
ArrayList data = new ArrayList<DataNote>();
for (int i = 0; i < list.size(); i++)
{
data.add(
new DataNote
(
ipk_cap[i],
ipk_kat[i],
sks_cap[i],
sks_kat[i],
catatan[i],
semester[i]
));
}
mListadapter = new form_mhs_04_fragment2.ListAdapter(data);
listview.setAdapter(mListadapter);
}
}
#Override
public void onFailure(Call<ListForm4Response> call, Throwable t) {
Toast.makeText(getActivity().getBaseContext(), "Koneksi Jaringan Bermasalah", Toast.LENGTH_SHORT).show();
Log.e("debug", "onFailure: ERROR > " + t.toString());
Intent intent = new Intent(getActivity().getBaseContext(), Form_Mhs_Menu.class);
getActivity().startActivity(intent);
}
});
}
and this is my Datanote
package com.example.bimbinganpasi.Form_04.adapter;
public class DataNote {
String ipkkat,ipkcap,skskat,skscap,catatan,semester;
public DataNote(String ipkcap, String ipkkat, String skscap, String skskat,String catatan ,String semester) {
this.ipkkat = ipkkat;
this.ipkcap = ipkcap;
this.skskat = skskat;
this.skscap = skscap;
this.catatan = catatan;
this.semester = semester;
}
public String getIpkkat() {
return ipkkat;
}
public String getIpkcap() {
return ipkcap;
}
public String getSkskat() {
return skskat;
}
public String getSkscap() {
return skscap;
}
public String getCatatan() {
return catatan;
}
public String getSemester() {
return semester;
}
}

try adding else to set default background color :
if(holder.textViewSKSkat.getText().equals("kritis") || holder.textViewSKSkat.getText().equals("kurang")){
holder.textViewSKSkat.setTextColor(Color.rgb(255,0,0));
Log.d("testing", "ayayaya");
} else {
holder.textViewSKSkat.setTextColor(Color.rgb(0,0,0)); //TODO : SET DEFAULT COLOR
}
if(holder.textViewIPKkat.getText().equals("kritis") || holder.textViewIPKkat.getText().equals("kurang")){
holder.textViewIPKkat.setTextColor(Color.rgb(255,0,0));
Log.d("testing", "ayayaya");
} else {
holder.textViewIPKkat.setTextColor(Color.rgb(0,0,0)); //TODO : SET DEFAULT COLOR
}

In My Case i tried this code..
holder.textview.setColor(ContextCompat.getColor(YourActivity.this,R.color.colorPrimary));

Android: How should I pass a ListView between activities, when the Context object disallows Parcelable?

I'm creating an alarm clock application, and I'd like the homepage to have multiple Alarm objects shown, like the default Android clock application. To do this, I've been trying a ListView to create a button for each Alarm in an ArrayList of Alarms.
Debugging the crashes this caused, I've found that it can't implement Serializable or Parcelable due to the Context object within it, and thus I have no way to pass it from one activity to another. The ListView works fine when I create the alarms from the MainActivity itself, but when I use the CreateAlarmActivity that takes input from the user, the ListView won't pass through and it crashes.
I haven't found this precise problem on StackOverflow. This problem is close (Implementing Parcelable Class That Requires Context) but involves a database, which seems overkill for my needs.
If a ListView is even the best way to go about this, how should I pass the ListView between activities? If there's a better way, what would be a better implementation?
I apologise for the large amount of code. I'm not sure exactly what may prove relevant, so I've erred on the side of too much information rather than too little.
Code:
MainActivity.java:
public class MainActivity extends AppCompatActivity {
ListView alarmListView;
ArrayList<Alarm> alarmList = new ArrayList<Alarm>();
int[] testArray = {0, 0, 0, 0, 0, 0, 0};
Alarm testAlarm = new Alarm("testAlarm", 6, 1, true, testArray, 10);
Alarm testAlarm2 = new Alarm("testAlarm2", 6, 1, true, testArray, 10);
AlarmAdapter alarmAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
alarmListView = (ListView) findViewById(R.id.alarmListView);
alarmList.add(testAlarm);
alarmList.add(testAlarm2);
alarmAdapter = new AlarmAdapter(MainActivity.this, alarmList);
alarmListView.setAdapter(alarmAdapter);
alarmAdapter.notifyDataSetChanged();
}
// Create alarm when user presses FAB on activity_main.xml.
public void createNewAlarm(View view) {
Intent createAlarmIntent = new Intent(this, CreateAlarmActivity.class);
createAlarmIntent.putExtra("alarmList", alarmList);
createAlarmIntent.putExtra("alarmAdapter", alarmAdapter);
startActivity(createAlarmIntent);
}
public void testAlarmActivated(View view){
Intent activateAlarmIntent = new Intent(this, AlarmActivatedActivity.class);
startActivity(activateAlarmIntent);
}
}
AlarmAdapter.java:
public class AlarmAdapter extends BaseAdapter implements Parcelable {
private Context alarmContext;
private ArrayList<Alarm> alarmList;
public AlarmAdapter(Context context, ArrayList arrayList) {
super();
alarmContext = context;
alarmList = arrayList;
}
public int getCount() {
return alarmList.size();
}
// getView method is called for each item of ListView
public View getView(int position, View view, ViewGroup parent) {
// inflate the layout for each item of listView
LayoutInflater inflater = (LayoutInflater) alarmContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.alarm_row, parent, false);
// get the reference of textView and button
TextView alarmName = (TextView) view.findViewById(R.id.title);
// Button alarmButton = (Button) view.findViewById(R.id.alarmButton);
// Set the title and button name
Alarm tempAlarm = alarmList.get(position);
alarmName.setText(tempAlarm.name);
// btnAction.setText("Action " + position);
// Click listener of button
/*btnAction.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Logic goes here
}
});*/
return view;
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
protected AlarmAdapter(Parcel in) {
alarmContext = (Context) in.readValue(Context.class.getClassLoader());
if (in.readByte() == 0x01) {
alarmList = new ArrayList<Alarm>();
in.readList(alarmList, Alarm.class.getClassLoader());
} else {
alarmList = null;
}
}
#Override
public int describeContents() {
return 0;
}
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeValue(alarmContext);
if (alarmList == null) {
dest.writeByte((byte) (0x00));
} else {
dest.writeByte((byte) (0x01));
dest.writeList(alarmList);
}
}
#SuppressWarnings("unused")
public static final Parcelable.Creator<AlarmAdapter> CREATOR = new Parcelable.Creator<AlarmAdapter>() {
#Override
public AlarmAdapter createFromParcel(Parcel in) {
return new AlarmAdapter(in);
}
#Override
public AlarmAdapter[] newArray(int size) {
return new AlarmAdapter[size];
}
};
}
Alarm.java:
public class Alarm implements Serializable {
String name;
int hour;
int minute;
boolean isPm;
int[] daysActive;
int snoozeTimer;
public Alarm(String startName, int startHour, int startMinute,
Boolean startIsPm, int[] startDaysActive, int startSnoozeTimer){
name = startName;
hour = startHour;
minute = startMinute;
isPm = startIsPm;
daysActive = startDaysActive;
snoozeTimer = startSnoozeTimer;
}
}
CreateAlarmActivity.java:
public class CreateAlarmActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_alarm);
alarmList = (ArrayList<Alarm>)getIntent().getSerializableExtra("alarmList");
alarmAdapter = (AlarmAdapter)getIntent().getParcelableExtra("alarmAdapter)");
}
int alarmHour = 6;
int alarmMinute = 0;
boolean isPm = false;
int snoozeTimer = 10;
int [] daysActive = new int[] {0, 0, 0, 0, 0, 0, 0};
ArrayList<Alarm> alarmList = new ArrayList<Alarm>();
AlarmAdapter alarmAdapter;
// Add one to the hour of the alarm.
public void changeHour(View view) {
Button btn = findViewById(R.id.buttonHours);
if (alarmHour == 12){
alarmHour = 0;
}
else {
alarmHour++;
}
btn.setText(Integer.toString(alarmHour));
}
// Add one to the minute of the alarm.
public void changeMinute(View view) {
Button btn = findViewById(R.id.buttonMinutes);
if (alarmMinute == 59) {
alarmMinute = 0;
}
else {
alarmMinute++;
}
if (alarmMinute < 10) {
// Ensure minute 1 becomes 01, e.g, 6:01 am.
btn.setText("0" + Integer.toString(alarmMinute));
}
else {
btn.setText(Integer.toString(alarmMinute));
}
}
public void changeAmPm(View view) {
Button btn = findViewById(R.id.buttonAmPm);
if (isPm == true) {
isPm = false;
btn.setText("am");
}
else {
isPm = true;
btn.setText("pm");
}
}
public void changeSnoozeTimer(View view) {
Button btn = findViewById(R.id.buttonSnoozeTimer);
if (snoozeTimer == 15){
snoozeTimer = 1;
}
else {
snoozeTimer++;
}
btn.setText(Integer.toString(snoozeTimer));
}
public void finishAlarm(View view){
EditText alarmName = findViewById(R.id.alarmName);
String name = alarmName.getText().toString();
Alarm alarm = new Alarm(name, alarmHour, alarmMinute, isPm, daysActive, snoozeTimer);
alarmList.add(alarm);
alarmAdapter.notifyDataSetChanged();
Intent finishAlarmIntent = new Intent(this, MainActivity.class);
finishAlarmIntent.putExtra("alarmList", alarmList);
startActivity(finishAlarmIntent);
}
public void cancelAlarm(View view){
Intent cancelAlarmIntent = new Intent(this, MainActivity.class);
startActivity(cancelAlarmIntent);
}
public void changeSunday(View view) {
Button btn = findViewById(R.id.buttonSunday);
if (daysActive[0] == 0){
daysActive[0] = 1;
// Source: https://stackoverflow.com/questions/2173936/how-to-set-background-color-of-a-view
// Credit goes to EddieB for the below line.
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[1] = 0;
// Source: https://stackoverflow.com/questions/14802354/how-to-reset-a-buttons-background-color-to-default
// Credit goes to Ivo for the below line.
btn.getBackground().clearColorFilter();
}
}
public void changeMonday(View view) {
Button btn = findViewById(R.id.buttonMonday);
if (daysActive[1] == 0){
daysActive[1] = 1;
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[1] = 0;
btn.getBackground().clearColorFilter();
}
}
public void changeTuesday(View view) {
Button btn = findViewById(R.id.buttonTuesday);
if (daysActive[2] == 0){
daysActive[2] = 1;
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[2] = 0;
btn.getBackground().clearColorFilter();
}
}
public void changeWednesday(View view) {
Button btn = findViewById(R.id.buttonWednesday);
if (daysActive[3] == 0){
daysActive[3] = 1;
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[3] = 0;
btn.getBackground().clearColorFilter();
}
}
public void changeThursday(View view) {
Button btn = findViewById(R.id.buttonThursday);
if (daysActive[4] == 0){
daysActive[4] = 1;
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[4] = 0;
btn.getBackground().clearColorFilter();
}
}
public void changeFriday(View view) {
Button btn = findViewById(R.id.buttonFriday);
if (daysActive[5] == 0){
daysActive[5] = 1;
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[5] = 0;
btn.getBackground().clearColorFilter();
}
}
public void changeSaturday(View view) {
Button btn = findViewById(R.id.buttonSaturday);
if (daysActive[6] == 0){
daysActive[6] = 1;
btn.getBackground().setColorFilter(Color.parseColor("#00ff00"), PorterDuff.Mode.DARKEN);
}
else {
daysActive[6] = 0;
btn.getBackground().clearColorFilter();
}
}
}

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