Develop Reference

How to fix TextView being rendered blank on new Activity

I'm trying to start another activity after clicking on a CardView inside a RecyclerView. The new activity renders after the click on any of the items inside the RecyclerView (It does the transition and changes the title TextView), but it does not show any of the TextView's inside the CardView on the layout.
The OnClick method is being set as an interface and being implemented in the first Activity.
Here is my first activity. I'm loading the data here from a SQLite database, but it's not relevant for the question to show the code from it.
public class MainActivity extends AppCompatActivity implements RecipeAdapterMain.OnCardListener {
private TextView tv;
ArrayList<RecipeObject> recipes = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RecyclerView rv = findViewById(R.id.recipeListMain);
LinearLayoutManager llm = new LinearLayoutManager(this);
rv.setLayoutManager(llm);
RecipeAdapterMain adapter = new RecipeAdapterMain(recipes, this);
rv.setAdapter(adapter);
tv = findViewById(R.id.title);
}
#Override
public void onCardClick(int position) {
Intent intent = new Intent(this, RecipeActivity.class);
startActivity(intent);
}
}
This is my Adapter.
public class RecipeAdapterMain extends RecyclerView.Adapter<RecipeAdapterMain.RecipeListViewHolder> {
RecyclerView mRecyclerView;
ArrayList<RecipeObject> recipeList;
private OnCardListener mOnCardListener;
public RecipeAdapterMain(Context context, ArrayList<RecipeObject> recipeList, OnCardListener onCardListener) {
this.mOnCardListener = onCardListener;
this.recipeList = recipeList;
}
#Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
mRecyclerView = recyclerView;
super.onAttachedToRecyclerView(recyclerView);
}
#Override
public RecipeListViewHolder onCreateViewHolder(ViewGroup parent, int i) {
View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_recipe_main, parent, false);
RecipeListViewHolder rcv = new RecipeListViewHolder(layoutView, mOnCardListener);
return rcv;
}
#Override
public void onBindViewHolder(#NonNull RecipeListViewHolder holder, int position) {
holder.mName.setText(recipeList.get(position).getName());
}
#Override
public int getItemCount(){
return recipeList.size();
}
public class RecipeListViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
public TextView mName;
OnCardListener onCardListener;
public RecipeListViewHolder(final View view, OnCardListener onCardListener) {
super(view);
mName = view.findViewById(R.id.textViewTitle);
this.onCardListener = onCardListener;
view.setOnClickListener(this);
}
#Override
public void onClick(View v) {
onCardListener.onCardClick(getAdapterPosition());
}
}
public interface OnCardListener {
void onCardClick(int position);
}
}
My second activity:
public class RecipeActivity extends AppCompatActivity {
#Override
public void onCreate(#Nullable Bundle savedInstanceState, #Nullable PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(R.layout.layout_recipe);
}
}
This is the layout from the second activity. (layout_recipe):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/textViewName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This is a test"
android:textColor="#1A1A1A"
android:textSize="18sp" />
<TextView
android:id="#+id/textViewIngr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This is a test"
android:textColor="#1A1A1A"
android:textSize="18sp" />
<TextView
android:id="#+id/textViewDire"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This is a test"
android:textColor="#1A1A1A"
android:textSize="18sp" />
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
And this is the layout from the first activity (activity_main):
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
</com.google.android.material.appbar.AppBarLayout>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/recipeListMain"
android:scrollbars="vertical">
</androidx.recyclerview.widget.RecyclerView>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:backgroundTint="#color/colorAccent"
android:layout_gravity="end|bottom"
android:layout_margin="16dp"
android:layout_marginBottom="16dp"
android:contentDescription="#string/submit"
android:src="#drawable/ic_add_black_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
android:onClick="openActivityCreate"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
From clicking in a Card on the MainActivity, I expected to render the second activity with it's TextViews (This is a test), but it's rendering a blank page instead.

try removing #Nullable PersistableBundle persistentState from onCreate on your second activity

Widget layout from Activity still appear after fragment add transaction

I have a problem with fragments. I add fragments dynamically without removing old fragments so they can be recalled when I return. But when I applied the following snippet I found that some of the views that came from the activity did not disappear, such as the Button, TextView, and so on. The results I get are overlapping views
MainActivity.Java
public class MainActivity extends AppCompatActivity implements BlankFragment.OnFragmentInteractionListener {
private static final String TAG = "MainActivity";
private Unbinder unbinder;
private FragmentManager fragmentManager;
#BindView(R.id.dynamic_fragment_frame)
FrameLayout frameLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reading);
unbinder = ButterKnife.bind(this);
fragmentManager = this.getSupportFragmentManager();
}
public void openFragment(View view) {
BlankFragment fragment = BlankFragment.newInstance("Test 1");
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.setCustomAnimations(R.anim.enter_from_right, R.anim.exit_to_right, R.anim.enter_from_right, R.anim.exit_to_right);
transaction.addToBackStack(null);
transaction.add(R.id.dynamic_fragment_frame, fragment, "BLACK_FRAGMENT");
transaction.commit();
}
#Override
protected void onDestroy() {
unbinder.unbind();
super.onDestroy();
}
#Override
public void onFragmentInteraction(String text) {
Log.d(TAG, "onFragmentInteraction: " + text);
onBackPressed();
}
}
activity_reading.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00d9ff"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/dynamic_fragment_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<TextView
android:id="#+id/title_read_news"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Ini Judul"
android:textAppearance="#style/TextAppearance.AppCompat.Large"
android:layout_gravity="center"
android:paddingBottom="5dp"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:onClick="openFragment"
android:text="Open"
android:stateListAnimator="#null"/>
</RelativeLayout>
BlankFragment.java
public class BlankFragment extends Fragment {
private static final String ARG_TEXT = "TEXT";
private Unbinder unbinder;
private String mParam1;
private OnFragmentInteractionListener mListener;
#BindView(R.id.tv_blank_fragment)
TextView tvTitle;
#BindView(R.id.back_btn)
Button backBtn;
#BindView(R.id.next_btn)
Button nextBtn;
private FragmentManager fragmentManager;
public BlankFragment() {
// Required empty public constructor
}
public static BlankFragment newInstance(String param1) {
BlankFragment fragment = new BlankFragment();
Bundle args = new Bundle();
args.putString(ARG_TEXT, param1);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_TEXT);
}
fragmentManager = getFragmentManager();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_blank, container, false);
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
unbinder = ButterKnife.bind(this, view);
tvTitle.setText(mParam1);
backBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String test = "test dari fragment";
sendBack(test);
}
});
nextBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
public void sendBack(String sendback) {
if (mListener != null) {
mListener.onFragmentInteraction(sendback);
}
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public interface OnFragmentInteractionListener {
void onFragmentInteraction(String text);
}
}
fragment_blank.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#cfcf1d"
tools:context=".BlankFragment">
<TextView
android:id="#+id/tv_blank_fragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/hello_blank_fragment" />
<Button
android:id="#+id/next_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/back_btn"
android:layout_alignParentStart="true"
android:text="Create new Fragment" />
<Button
android:id="#+id/back_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:text="back" />
</RelativeLayout>
Everything went smoothly but the result of my Mainactivity layout still appeared on fragment. Please help me
Result as shows as below:
here 1
here 2

In activity_reading, the fragment container view (dynamic_fragment_frame) is declared first, so the button and the text view will be displayed on top of it. If you move the fragment container to the bottom, the fragments will be displayed correctly, so the layout should look something like this:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00d9ff"
tools:context=".MainActivity">
<TextView
android:id="#+id/title_read_news"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Ini Judul"
android:textAppearance="#style/TextAppearance.AppCompat.Large"
android:layout_gravity="center"
android:paddingBottom="5dp"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:onClick="openFragment"
android:text="Open"
android:stateListAnimator="#null"/>
<FrameLayout
android:id="#+id/dynamic_fragment_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00d9ff"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/dynamic_fragment_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<TextView
android:id="#+id/title_read_news"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Ini Judul"
android:textAppearance="#style/TextAppearance.AppCompat.Large"
android:layout_gravity="center"
android:paddingBottom="5dp"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:onClick="openFragment"
android:text="Open"
android:stateListAnimator="#null"/>
</RelativeLayout>
With the above layout, Imagine that the TextView and Button are over the FragmeLayout. So when you add a Fragment to the FrameLayout, the TextView and Button are still over the FragmeLayout. To hide these views, you should use TextView.setVisibility(View.GONE) and Button.setVisibility(View.GONE) when adding a Fragment

android recyclerview show data only at first time

I have a problem ,I create recyclerview and its work fine at the first search data from api , it display fine but when I try to search with new data ( second time ) it is not display anything i try to test and debug every every thing work fine and new data enter to adapter and get the result fine and set adapter to recyclerview but it is not showing any thing
I try several method like use only one adapter and change it's list of Date and use notifyDataSetChange but not work still only show at the first time
Below activity is use to search get date ( use in searching data )
fromDate to toDate
DeliveryReportActivity.java
public class DeliveryReportActivity extends AppCompatActivity
implements DateDialogFromFragment.SelectDateFromInterface,
DateDialogToFragment.SelectDateToInterface {
Button btn_from;
Button btn_to;
EditText et_fromDate;
EditText et_toDate;
Button search_btn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_delivery_report);
btn_from=(Button)findViewById(R.id.btn_fromDate);
btn_to=(Button)findViewById(R.id.btn_toDate);
et_fromDate = (EditText) findViewById(R.id.from_date);
et_toDate = (EditText) findViewById(R.id.to_date);
search_btn=(Button)findViewById(R.id.search_delivery_report_btn);
et_fromDate.setText(new SimpleDateFormat("yyyy-MM-dd").format(new
Date()));
et_toDate.setText(new SimpleDateFormat("yyyy-MM-dd").format(new
Date()));
btn_from.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DateDialogFromFragment dateDialogFragment = new
DateDialogFromFragment();
android.app.FragmentTransaction ft =
getFragmentManager().beginTransaction();
dateDialogFragment.show(ft, "DatePicker");
}
});
btn_to.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DateDialogToFragment dateDialogFragment = new
DateDialogToFragment();
android.app.FragmentTransaction ft =
getFragmentManager().beginTransaction();
dateDialogFragment.show(ft, "DatePicker");
}
});
search_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bundle bundle=new Bundle();
bundle.putString("from",et_fromDate.getText().toString()+ "
00:00:00");
bundle.putString("to",et_toDate.getText().toString()+" 23:59:59");
Intent intent =new
Intent(DeliveryReportActivity.this,DeliveryReportListActivity.class);
intent.putExtras(bundle);
startActivity(intent);
}
});
}
#Override
public void onGetSelectFromDate(String fromDate) {
et_fromDate.setText(fromDate);
}
#Override
public void onGetSelectToDate(String toDate) {
et_toDate.setText(toDate);
}
}
and it's view activity_delivery_report.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="20dp"
android:orientation="vertical"
tools:context="com.exatech.groupsmsandroid.activity.
deliveryReport.DeliveryReportActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="#+id/btn_fromDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/From"
android:textSize="18dp" />
<EditText
android:id="#+id/from_date"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="2017-12-26" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:orientation="horizontal">
<Button
android:id="#+id/btn_toDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/to" />
<EditText
android:id="#+id/to_date"
android:text="2017-12-26"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_centerInParent="true"
android:gravity="center"
android:layout_marginTop="20dp"
android:id="#+id/search_delivery_report_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:text="#android:string/search_go" />
</RelativeLayout>
</LinearLayout>
after I press the search button it's start new activity that show my recylerview the new activity is
DeliveryReportListActivity .java
public class DeliveryReportListActivity extends AppCompatActivity implements
DeliveryReportService.DeliveryReportServiceInterface {
private static final String TAG = "GSMS";
private Bundle bundle;
private RecyclerView recyclerView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_delivery_report_list);
recyclerView = (RecyclerView) findViewById(R.id.delivery_report_rv);
}
#Override
protected void onResume() {
super.onResume();
bundle = getIntent().getExtras();
String from = bundle.getString("from");
String to = bundle.getString("to");
DeliveryReportService.getInstance(this).
getDeliveryReportFromDateToDate(from, to);// Call api get deliver
}
#Override
public void onGetDeliveryReport(Response<List<DeliveryReportResource>>
listResponse) {// response
Log.i(TAG, "onGetDeliveryReport: listResponse.body():" +
listResponse.body());
DeliveryReportAdapter deliveryReportAdapter = new
DeliveryReportAdapter(DeliveryReportListActivity.this, listResponse.body());
recyclerView.setAdapter(deliveryReportAdapter);
deliveryReportAdapter.notifyDataSetChanged();
Toast.makeText(DeliveryReportListActivity.this, "Delivery Report Success
", Toast.LENGTH_SHORT).show();
}
#Override
public void onDeliveryConnectionFailed() {
Toast.makeText(DeliveryReportListActivity.this, "Connect Error ",
Toast.LENGTH_SHORT).show();
}
}
and it's view activity_delivery_report_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.exatech.groupsmsandroid.activity.deliveryReport.
DeliveryReportListActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:text="#string/text"
android:layout_weight="3"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_weight="4"
android:text="#string/phone_no"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_weight="4"
android:text="#string/status"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/delivery_report_rv"
android:layout_width="match_parent"
app:layoutManager="LinearLayoutManager"
android:layout_height="match_parent"
tools:listitem="#layout/delivery_report_list_content"/>
</LinearLayout>
Below is Myadapter Class
**DeliveryReportAdapter.java**
public class DeliveryReportAdapter extends
RecyclerView.Adapter<DeliveryReportAdapter.ViewHolder> {
List<DeliveryReportResource> listDeliveryReport;
Context context;
public DeliveryReportAdapter(Context context, List<DeliveryReportResource>
listDeliveryReport) {
this.listDeliveryReport = listDeliveryReport;
this.context = context;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view =
LayoutInflater.from(parent.getContext()).
inflate(R.layout.delivery_report_list_content, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.item = listDeliveryReport.get(position);
holder.text.setText(holder.item.getText());
CustomAdapterFroDeliveryReport adapterFroDeliveryReport = new
CustomAdapterFroDeliveryReport(context, R.layout.two_text_contect,
listDeliveryReport.get(position).getSmsSubscribedRecipientsResourceList());
holder.phoneNoAndStatus.setAdapter(adapterFroDeliveryReport);
holder.view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(context, "click message no=" +
holder.item.getText(), Toast.LENGTH_SHORT).show();
}
});
}
#Override
public int getItemCount() {
return listDeliveryReport.size();
}
class ViewHolder extends RecyclerView.ViewHolder {
View view;
TextView text;
ListView phoneNoAndStatus;
DeliveryReportResource item;
public ViewHolder(View itemView) {
super(itemView);
view = itemView;
text = (TextView) itemView.findViewById(R.id.message_tv);
phoneNoAndStatus = (ListView)
itemView.findViewById(R.id.phoneNo_and_status_lv);
}
}
}

Try to create an adapter once and then update items
Add next code to your adapter class
ArrayList<DeliveryReportResource> listDeliveryReport = new ArrayList<DeliveryReportResource>();
public DeliveryReportAdapter(Context context) {
this.context = context;
}
public void updateItems(List<DeliveryReportResource> list) {
listDeliveryReport.clear();
listDeliveryReport.addAll(list);
notifyDataSetChanged();
}
Then create adapter once in onCreate() and place it as global variable
And now you should call adapter.updateItems(...) every time you want to change data

endAllActiveAnimators on 0xa2ee7500 (RippleDrawable) with handle 0xa1c126d0 in Android Fragment

I have this error on starting Fragment. Sometimes the fragment showing, sometime not, there should be only a blank screen showing.
At the time logcat shows "
endAllActiveAnimators on 0xa2ee7500 (RippleDrawable) with handle 0xa1c126d0"
Also Please describe the endAllActiveAnimators
The code is given below
public class SingleArtViewDetail extends BaseActivity {
#BindView(R.id.tabSingleartLayoutHome)
TabLayout tabLayout;
#BindView(R.id.viewPagerSingleartHome)
ViewPager viewPager;
ViewPagerAdapter viewPagerAdapter;
private ViewArtDetailFragment viewArtDetailFragment = new ViewArtDetailFragment();
private CommentsFragment commentsFragment = new CommentsFragment();
private SimilarArtFragment similarArtFragment = new SimilarArtFragment();
Activity activity;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_single_art_view_detail);
if(getIntent()!=null) {
EventBus.getDefault().postSticky(new ArtIdEvent(getIntent().getStringExtra("artid")));
}
ButterKnife.bind(this);
setToolBar("");
setTabs();
activity=SingleArtViewDetail.this;
// EventBus.getDefault().register(this);
}
#Override
protected void onDestroy() {
// EventBus.getDefault().unregister(this);
super.onDestroy();
}
private void setTabs() {
viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
viewPagerAdapter.addFrag(viewArtDetailFragment, "");
viewPagerAdapter.addFrag(commentsFragment, "");
viewPagerAdapter.addFrag(similarArtFragment, "");
viewPager.setAdapter(viewPagerAdapter);
viewPager.setOffscreenPageLimit(3);
tabLayout.setupWithViewPager(viewPager);
final int[] ICONS = new int[]{
R.drawable.ic_addtocart,
R.drawable.ic_comments,
R.drawable.ic_similaritems};
final int[] ICONSUNSELECTED = new int[]{
R.drawable.ic_addtocartselected,
R.drawable.ic_commentsselected,
R.drawable.ic_similaritemsselected};
tabLayout.getTabAt(0).setIcon(ICONS[0]);
tabLayout.getTabAt(1).setIcon(ICONSUNSELECTED[1]);
tabLayout.getTabAt(2).setIcon(ICONSUNSELECTED[2]);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
System.out.println("selected"+tab.getPosition());
switch (tab.getPosition())
{
case 0:
tabLayout.getTabAt(0).setIcon(ICONS[0]);
break;
case 1:
tabLayout.getTabAt(1).setIcon(ICONS[1]);
break;
case 2:
tabLayout.getTabAt(2).setIcon(ICONS[2]);
break;
}
// tab.setIcon(R.drawable.newicon);
//also you can use tab.setCustomView() too
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
//tab.setIcon(R.drawable.oldicon);
System.out.println("unselected"+tab.getPosition());
switch (tab.getPosition())
{
case 0:
tabLayout.getTabAt(0).setIcon(ICONSUNSELECTED[0]);
break;
case 1:
tabLayout.getTabAt(1).setIcon(ICONSUNSELECTED[1]);
break;
case 2:
tabLayout.getTabAt(2).setIcon(ICONSUNSELECTED[2]);
break;
}
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
System.out.println(tab);
}
});
}}
Fragment is
public class ViewArtDetailFragment extends BaseFragment {
Context context;
String artid;
SingleImageModel singleImageModel = new SingleImageModel();
SingleArtDetail singleArtDetail;
#BindView(R.id.layout_artdetail)
LinearLayout layout_artdetail;
#BindView(R.id.progressbar)
ProgressBar progressbar;
#BindView(R.id.pager)
ImageView viewPager;
#BindView(R.id.horizontalscrlview)
HorizontalScrollView horizontalscrlview;
#BindView(R.id.tv_arttitle)
TextView tv_arttitle;
#BindView(R.id.artbaseprice)
TextView tv_artbaseprice;
#BindView(R.id.tv_artownername)
TextView tv_artownername;
#BindView(R.id.tv_artdescrptn)
TextView tv_artdescrptn;
#BindView(R.id.tv_viewdimension)
TextView tv_viewdimension;
#BindView(R.id.tv_viewyearofcreation)
TextView tv_viewyearofcreation;
#BindView(R.id.tv_viewcategory)
TextView tv_viewcategory;
#BindView(R.id.tv_viewsubject)
TextView tv_viewsubject;
#BindView(R.id.tv_viewstyle)
TextView tv_viewstyle;
#BindView(R.id.tv_viewmaterials)
TextView tv_viewmaterials;
#BindView(R.id.tv_viewmedium)
TextView tv_viewmedium;
#BindView(R.id.tv_vieworiginal)
TextView tv_vieworiginal;
#BindView(R.id.tv_viewprint)
TextView tv_viewprint;
#BindView(R.id.thumbnails)
LinearLayout _thumbnails;
#BindView(R.id.tv_copyright)
TextView tv_copyright;
// private GalleryPagerAdapter _adapter;
private ArrayList<String> thumb_images = new ArrayList<>();
private ArrayList<String> gallery_images = new ArrayList<>();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_view_art_details, container, false);
ButterKnife.bind(this, view);
context = getActivity();
ArtIdEvent artIdEvent = EventBus.getDefault().getStickyEvent(ArtIdEvent.class);
artid = artIdEvent.getArtId();
callingArtDetailApi();
return view;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);}}
Fragment xml is given Below
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
>
<ProgressBar
android:id="#+id/progressbar"
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<LinearLayout
android:visibility="gone"
android:id="#+id/layout_artdetail"
android:layout_below="#+id/toolbar"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_marginBottom="80dp"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_marginRight="#dimen/tabsmall_margin"
android:layout_marginLeft="#dimen/tabsmall_margin"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="#dimen/viewpagerheight"
>
</ImageView>
<HorizontalScrollView
android:id="#+id/horizontalscrlview"
android:layout_marginRight="#dimen/tabsmall_margin"
android:layout_marginLeft="#dimen/tabsmall_margin"
android:layout_width="match_parent"
android:layout_height="#dimen/horizonalscrollheight"
android:layout_gravity="bottom"
>
<LinearLayout
android:id="#+id/thumbnails"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingTop="2dp">
</LinearLayout>
</HorizontalScrollView>
<include
layout="#layout/content_view_art_detail"/>
</LinearLayout>
</ScrollView>
</LinearLayout>
Please help to solve this issue, thanks in advance.
EDIT
Full log of the error (Posted by OP in comments):
06-29 13:06:55.702 24382-24382/com.cushbuart.cushbuart E/log: onsavedInstanceState 06-29 13:07:01.840 24382-24525/com.cushbuart.cushbuart D/OpenGLRenderer: endAllActiveAnimators on 0x9ecd8b80 (RippleDrawable) with handle 0xa19a4540 06-29 13:07:03.612 24382-24382/com.cushbuart.cushbuart D/EventBus: No subscribers registered for event class com.cushbuart.cushbuart.eventmodel.ArtIdEvent 06-29 13:07:03.612 24382-24382/com.cushbuart.cushbuart D/EventBus: No subscribers registered for event class org.greenrobot.eventbus.NoSubscriberEvent

solved my issue it is because of my tablayout xml file.
i changed that to
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<include
layout="#layout/toolbar"/>
<android.support.v4.view.ViewPager
android:layout_below="#+id/toolbar"
android:id="#+id/viewPagerSingleartHome"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
<android.support.design.widget.TabLayout
android:id="#+id/tabSingleartLayoutHome"
app:tabMode="fixed"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
app:tabTextColor="#d3d3d3"
app:tabSelectedTextColor="#color/colorwhite"
app:tabIndicatorColor="#color/colorwhite"
android:minHeight="?attr/actionBarSize"
android:layout_alignParentBottom="true"
/>
</RelativeLayout>

row layout not set on on Main Activity Recycler View

I am just parse some data and display on my ListProperty Class. I am using RecyclerView and CardView as a row layout. Somehow all is working fine i don't see any error in verbose. But the Data and row layout dosent display in my main activity. Activity is showing blank. I am trying from hours but kind find the error. Please someone help
My MainActivity.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin">
<android.support.v7.widget.RecyclerView
android:id="#+id/cardList"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
This is row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="#+id/imageViewFront" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_marginLeft="100dp"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="bold"
android:text="New Text"
android:textColor="#0055CC"
android:id="#+id/textViewPropertyname" />
<TextView
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:textColor="#0055CC"
android:layout_columnWeight="1"
android:id="#+id/textViewPropertyDescription"/>
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
This is myAdapter.java
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
List<Bean> DataList;
public MyAdapter(List<Bean> List){
super();
DataList = List;
}
public class MyViewHolder extends RecyclerView.ViewHolder {
// each data item is just a string in this case
public TextView propertyName;
public TextView propertyDesc;
public ImageView ImageFront;
public MyViewHolder(View v) {
super(v);
propertyName = (TextView) v.findViewById(R.id.textViewPropertyname);
propertyDesc = (TextView) v.findViewById(R.id.textViewPropertyDescription);
ImageFront = (ImageView) v.findViewById(R.id.imageViewFront);
}
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext()).
inflate(R.layout.list_card_view,parent,false);
return new MyViewHolder(itemView);
}
#Override
public void onBindViewHolder(MyAdapter.MyViewHolder holder, int position) {
Bean bean = DataList.get(position);
holder.propertyName.setText(bean.getPropertyName());
holder.propertyDesc.setText(bean.getPropertyDescription());
holder.ImageFront.setImageResource(R.drawable.agriculture);
}
#Override
public int getItemCount() {
return DataList.size();
}
}
And this is my MainActivity.java
public class ListProperty extends AppCompatActivity {
private RecyclerView mRecyclerView;
private MyAdapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
Bean bean;
AQuery aQuery;
JSONObject jsonObject;
List<Bean> list;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_property);
aQuery= new AQuery(getApplicationContext());
String URL = "http://192.168.0.107/propertyapp/service/simpleservice.php";
list = new ArrayList<Bean>();
mRecyclerView = (RecyclerView) findViewById(R.id.cardList);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new MyAdapter(list);
mRecyclerView.setAdapter(mAdapter);
aQuery.ajax(URL, JSONObject.class,new AjaxCallback<JSONObject>(){
#Override
public void callback(String url, JSONObject object, AjaxStatus status) {
try {
bean = new Bean();
list = new ArrayList<Bean>();
String string = object.getString("data");
JSONArray jsonArray = new JSONArray(string);
for (int i=0;i<jsonArray.length();i++) {
jsonObject = jsonArray.getJSONObject(i);
bean.setPropertyName("property_name");
bean.setPropertyDescription("property_desc");
list.add(bean);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
});
}
}

Try to remove parent LinearLayout. Because you have CardView which is acting as list item.
Try this row.xml -
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="#+id/imageViewFront" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_marginLeft="100dp"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="bold"
android:text="New Text"
android:textColor="#0055CC"
android:id="#+id/textViewPropertyname" />
<TextView
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:textColor="#0055CC"
android:layout_columnWeight="1"
android:id="#+id/textViewPropertyDescription"/>
</LinearLayout>
</android.support.v7.widget.CardView>
Hope it will help :)

Just add notifyDataSetChanged() to your Activity as below:
aQuery.ajax(URL, JSONObject.class,new AjaxCallback<JSONObject>(){
#Override
public void callback(String url, JSONObject object, AjaxStatus status) {
try {
bean = new Bean();
list = new ArrayList<Bean>();
String string = object.getString("data");
JSONArray jsonArray = new JSONArray(string);
for (int i=0;i<jsonArray.length();i++) {
jsonObject = jsonArray.getJSONObject(i);
bean.setPropertyName("property_name");
bean.setPropertyDescription("property_desc");
list.add(bean);
}
//here notify your adapter
//is to Notify any registered observers that the data set has changed.
mAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
});

Because on your callback you have created new instance of list
list = new ArrayList<Bean>();
then in fact, the new created list and DataList in your adapter are pointing to 2 difference objects => calling notifyDataSetChanged here won't work. Try writing method updateData on MyAdapter and call it from your callback method
public void updateData(List<Bean> List){
DataList = List;
notifyDataSetChanged();
}
On your callback:
aQuery.ajax(URL, JSONObject.class,new AjaxCallback<JSONObject>(){
#Override
public void callback(String url, JSONObject object, AjaxStatus status) {
try {
bean = new Bean();
list = new ArrayList<Bean>();
String string = object.getString("data");
JSONArray jsonArray = new JSONArray(string);
for (int i=0;i<jsonArray.length();i++) {
jsonObject = jsonArray.getJSONObject(i);
bean.setPropertyName("property_name");
bean.setPropertyDescription("property_desc");
list.add(bean);
}
// update data
mAdapter.updateData(list);
} catch (JSONException e) {
e.printStackTrace();
}
}
});