I am using GridView to display a list but the grid return just one row .
How can I display all items in gridView?
My code :
<GridView
android:id="#+id/slide_item_rc_latest"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:verticalSpacing="5dp"
android:horizontalSpacing="5dp"
android:stretchMode="columnWidth"
android:numColumns="2"
/>
And my Adapter :
public class latestProductAdapter extends BaseAdapter {
private List<SlideItem> slideItems;
private Context mContext;
public latestProductAdapter(Context c, List<SlideItem> slideItems) {
mContext = c;
this.slideItems = slideItems;
}
#Override
public int getCount() {
return slideItems.size();
}
...
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolderItem viewHolder;
if (convertView == null) {
LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
convertView = inflater.inflate(R.layout.slid_item, parent, false);
...
}
return convertView;
}
}
In my activivty :
latestProductAdapter = new latestProductAdapter(getContext(), productListLatest);
LatestProductsGridView.setAdapter(latestProductAdapter);
Most possible reason could be you might be using grid view inside scroll view.
So remove scroll view or use other xml file to declare.
Related
I want create a horizontal recycle view and i writed this code:
in main activity xml
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" >
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
And this is adapter class
public class AdapterNote extends ArrayAdapter<StructCategory> {
public AdapterNote(ArrayList<StructCategory> array) {
super(G.context, R.layout.adapter_category, array);
}
private static class ViewHolder {
public TextView txtTitle;
public ViewHolder(View view) {
txtTitle = (TextView) view.findViewById(R.id.cat_txt);
}
public void fill(final ArrayAdapter<StructCategory> adapter, final StructCategory item, final int position) {
txtTitle.setText(item.title);
}
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
StructCategory item = getItem(position);
if (convertView == null) {
convertView = G.inflater.inflate(R.layout.adapter_category, parent, false);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.fill(this, item, position);
return convertView;
}}
In the MainClass setadapter
setadapter function has error :
The type android.support.v4.view.NestedScrollingChild2 cannot be resolved. It is indirectly referenced from required .class files
I imported support v4 api 20 and v7compat v20 and v7 recycleview api 20
but dont work my code
LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
RecyclerView myList = (RecyclerView) findViewById(R.id.my_recycler_view);
myList.setLayoutManager(layoutManager);
adapter = new AdapterNote(G.tasksCategory);
myList.setAdapter(adapter);
and i create xml for adapter class:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" android:padding="8dip" android:gravity="right">
<TextView
android:id="#+id/cat_txt"
android:layout_width="80dp"
android:layout_height="80dp"
android:background="#drawable/category_txt"
android:gravity="center_vertical|center"
android:text="TextView"
android:textColor="#000" />
</LinearLayout>
please help me for this problem
As you are using RecyclerView, extends your adapter class by RecyclerView.Adapter<>.
Please refer this : https://www.google.com/amp/s/www.androidhive.info/2016/01/android-working-with-recycler-view/amp/
I edit my code Like recycleview adapter example:
please check my code and fix it
Error txt on Classname and MyViewHolder :
The hierarchy of the type AdapterCategory is inconsistent
in the problem section show this error:
The project was not built since its build path is incomplete. Cannot find the class file for android.support.v4.view.NestedScrollingChild2. Fix the build path then try building this project
public class AdapterCategory extends RecyclerView.Adapter<AdapterCategory.MyViewHolder> {
private ArrayList<StructCategory> categoryList;
private ItemClickListener mClickListener;
AdapterCategory(Context context, ArrayList<StructCategory> categoryList) {
G.inflater = LayoutInflater.from(context);
this.categoryList = categoryList;
}
// inflates the row layout from xml when needed
#Override
#NonNull
public MyViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = G.inflater.inflate(R.layout.adapter_category, parent, false);
return new MyViewHolder(view);
}
// binds the data to the view and textview in each row
#Override
public void onBindViewHolder(#NonNull MyViewHolder holder, int position) {
StructCategory hList = categoryList.get(position);
holder.myTextView.setText(hList.title);
}
// total number of rows
#Override
public int getItemCount() {
return categoryList.size();
}
// stores and recycles views as they are scrolled off screen
public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView myTextView;
MyViewHolder(View itemView) {
super(itemView);
myTextView = (TextView) itemView.findViewById(R.id.cat_txt);
itemView.setOnClickListener(this);
}
#Override
public void onClick(View view) {
if (mClickListener != null)
mClickListener.onItemClick(view, getAdapterPosition());
}
}
// convenience method for getting data at click position
public StructCategory getItem(int id) {
return categoryList.get(id);
}
// allows clicks events to be caught
public void setClickListener(ItemClickListener itemClickListener) {
this.mClickListener = itemClickListener;
}
// parent activity will implement this method to respond to click events
public interface ItemClickListener {
void onItemClick(View view, int position);
}}
I'm trying to implement button on each row in ListView, but I saw many topics and I don't succeeded to add code to mine. Here is my MainActivity :
public class MainActivity extends AppCompatActivity {
private ArrayAdapter<String> itemsAdapter;
private ArrayList<String> items;
private ImageButton formButton;
private ListView lvMain;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
commonFunction();
}
public void commonFunction() {
lvMain = (ListView) findViewById(R.id.lvMain);
items = new ArrayList<String>();
readItems();
itemsAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
items);
lvMain.setAdapter(itemsAdapter);
formButton = (ImageButton) findViewById(R.id.btnPlus);
formButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
setLayoutActivity();
}
});
}
}
Here is my activity_main.xml :
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/lvMain"
android:layout_above="#+id/btnPlus" />
<ImageButton
android:layout_width="match_parent"
android:layout_height="65dp"
android:id="#+id/btnPlus"
android:layout_alignParentBottom="true"
app:srcCompat="#mipmap/ic_plus_foreground" />
Does someone any idea how to do ?
Create custom adapter with custom row layout file and add button on that row file and bind it to List/Recycler view. So it will inflate in all row.
Add below code in row_list.xml file.
<ImageButton
android:layout_width="match_parent"
android:layout_height="65dp"
android:id="#+id/btnPlus"
android:layout_alignParentBottom="true"
app:srcCompat="#mipmap/ic_plus_foreground" />
CustomAdapter.java
public class CustomAdapter extends BaseAdapter {
private ArrayList data;
private static LayoutInflater inflater = null;
/************* CustomAdapter Constructor *****************/
public CustomAdapter(ArrayList d) {
/********** Take passed values **********/
data = d;
/*********** Layout inflater to call external xml layout () ***********/
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
/******** What is the size of Passed Arraylist Size ************/
public int getCount() {
if (data.size() <= 0)
return 1;
return data.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
/********* Create a holder Class to contain inflated xml file elements *********/
public static class ViewHolder {
public ImageButton button;
}
/****** Depends upon data size called for each row , Create each ListView row *****/
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
ViewHolder holder;
if (convertView == null) {
/****** Inflate tabitem.xml file for each row ( Defined below ) *******/
vi = inflater.inflate(R.layout.row_list, null);
/****** View Holder Object to contain tabitem.xml file elements ******/
holder = new ViewHolder();
holder.button = (ImageView) vi.findViewById(R.id.btnPlus);
/************ Set holder with LayoutInflater ************/
vi.setTag(holder);
} else
holder = (ViewHolder) vi.getTag();
holder.button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//Button click
}
});
return vi;
}}
Hope it will solve problem.
Happy coding!!
Crate custom adapter and bind it with the ListView.
Inflate custom layout for each row in the adapter.
You can put your button in the custom layout file.
public class CustomAdapter extends ArrayAdapter<String> {
private Context context;
private int singleRowLayoutId;
public CustomAdapter(Context context, int singleRowLayoutId, String []titles, String []desc, int []images ) {
super(context, singleRowLayoutId,titles);
this.context=context;
this.singleRowLayoutId=singleRowLayoutId; //custom row layout for list view item
}
#NonNull
#Override
public View getView(int position, #Nullable View convertView, #NonNull ViewGroup parent) {
View row=convertView;
CustomViewHolder holder=null;
if(row==null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
//view object of single row of list view
row = inflater.inflate(singleRowLayoutId, parent, false);
//by using holder, we make sure that findViewById() is not called every time.
holder=new CustomViewHolder(row);
row.setTag(holder);
}
else
{
holder=(CustomViewHolder)row.getTag();
}
return row;
}
private class CustomViewHolder {
private ImageButton mbtn;
CustomViewHolder(View view)
{
mbtn=(ImageButton)view.findViewById(R.id.btn);
mbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//handle button click here
}
});
}
}
I think that this is what you need - create a separate layout for the rows in the list view. Then create a custom adapter, where you are adding this layout as row layout and then set this adapter to your list view. Here are the details with examples:
Android custom Row Item for ListView
I have two Adapter classes and in the first one, i have an Array of Integers[] named mThumbIds which is initialized like this :
// References to our images
private Integer[] mThumbIds = {
R.mipmap.beyondthe_ferocious_flash_majin_vegeta_icon,
R.mipmap.full_tilt_kamehameha_super_saiyan2_gohan_youth_icon,
R.mipmap.merciless_condemnation_goku_black_super_saiyan_rose_and_zamasu_icon,
R.mipmap.everlasting_legend_super_saiyan_goku_icon,
R.mipmap.indestructible_saiyan_evil_legendary_super_saiyan_broly_icon
};
I want to extract an Integer from this array(let's say mThumbIds[0]) and then pass it into my other adapter class and use it to get a valid drawable that i can use for my imageViews.
This is the 2nd adapter's List to hold the extracted Integer:
// References to the images via a List
private List<Integer> mGLBIcons = new ArrayList<>();
And here is where i need the drawable :
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
// If it's not recycled, initialize some attributes
if (convertView == null) {
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(225, 225));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(mGLBIcons.get(position));
return imageView;
}
So far, nothing that i've tried has worked so i am asking for your help!
EDITED
ImageViewAdapterClass:
public class UserBoxGlbImageAdapter extends BaseAdapter {
Context mContext;
public UserBoxGlbImageAdapter(Context c) {
mContext = c;
}
#Override
public int getCount() {
return mGLBIcons.size();
}
#Override
public Object getItem(int i) {
return null;
}
#Override
public long getItemId(int i) {
return 0;
}
// References to the images via a List
private List<Integer> mGLBIcons = new ArrayList<>();
// Used to add card icons from the mainScreenFragment
public List<Integer> getGLBIconsList() {
return mGLBIcons;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
// If it's not recycled, initialize some attributes
if (convertView == null) {
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(225, 225));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
Drawable drbl = mContext.getResources().getDrawable(mGLBIcons.get(0));
imageView.setImageDrawable(drbl);
return imageView;
}
public void passInteger(Integer integer) {
mGLBIcons.add(integer);
}
}
GridSettingFragmentClass:
public class UserBoxGLBFragment extends Fragment {
GridView globalGridView;
public UserBoxGLBFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_user_box_glb, container, false);
globalGridView = view.findViewById(R.id.userBoxGlbGridView);
globalGridView.setAdapter(new UserBoxGlbImageAdapter(getContext()));
return view;
}
}
fragment_user_box_glb.xml :
<LinearLayout 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="#color/colorSecondaryGLB"
android:orientation="vertical"
tools:context="com.dcv.spdesigns.dokkancards.ui.UserBoxGLBFragment">
<GridView
android:id="#+id/userBoxGlbGridView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnWidth="90dp"
android:gravity="center"
android:horizontalSpacing="10dp"
android:numColumns="4"
android:stretchMode="columnWidth"
android:verticalSpacing="10dp" >
</GridView>
</LinearLayout>
you are using mipmap id and you are trying to load it as a drawable, i doubt it will work. try putting the images in the drawable folder and use thr drawable id.
this is how you set a drawable image in a adapter:
imageView.setImageDrawable(context.getResources().getDrawable(R.drawable.ic_success))
in your case it would be
imageView.setImageDrawable(context.getResources().getDrawable(listOfImages[position]))
Change your constructoras:
public UserBoxGlbImageAdapter(Context c, List<Integer> iconsList) {
mContext = c;
mGLBIcons = iconsList;
}
try using as below:
image_view_layout xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image_view"
android:layout_width="225dp"
android:layout_height="225dp" />
</LinearLayout>
public class UserBoxGLBFragment extends Fragment {
GridView globalGridView;
List<Integer> listOfimages = new ArrayList<>();
public UserBoxGLBFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_user_box_glb, container, false);
listOfimages.add(R.drawable.beyondthe_ferocious_flash_majin_vegeta_icon);
globalGridView = view.findViewById(R.id.userBoxGlbGridView);
globalGridView.setAdapter(new UserBoxGlbImageAdapter(getContext(),listOfimages));
return view;
}
}
public class UserBoxGlbImageAdapter extends BaseAdapter {
Context mContext;
// References to the images via a List
private List<Integer> mGLBIcons = new ArrayList<>();
public UserBoxGlbImageAdapter(Context c,List<Integer> listOfIcons) {
mContext = c;
mGLBIcons = listOfIcons;
}
#Override
public int getCount() {
return mGLBIcons.size();
}
#Override
public Object getItem(int i) {
return null;
}
#Override
public long getItemId(int i) {
return 0;
}
// Used to add card icons from the mainScreenFragment
public List<Integer> getGLBIconsList() {
return mGLBIcons;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// If it's not recycled, initialize some attributes
if (convertView == null) {
convertView = LayoutInflater.from(parent.getContext()).inflate(R.layout.image_view_layout, parent, false));
}
ImageView imageView = (ImageView)convertView.findViewById(R.id.image_view)
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8); imageView.setImageDrawable(mContext.getResources().getDrawable(mGLBIcons.get(0)));
return imageView;
}
}
I am new for Android development.
I was trying to implement a custom ArrayAdapter to accept custom object in Android Studio.
I have referenced the source code from some tutorial, but my screen output was improper that the custom object only fill in the TextView which link with the textViewResourceId of ArrayAdapter , but not the custom object's properties fill in all EditText in the layout appropriately.
I tried to remove textViewResourceId parameter in the constructor of ArrayAdapter to fix the problem, but Android Studio returned error - You must supply a resource ID for a TextView
I want the properties of custom object fill in all EditText and no error message be returned, can anyone give me a hint?
Here is my layout:
row_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/row_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"/>
<EditText
android:id="#+id/row_no"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_margin="1dp"
android:layout_gravity="center_horizontal"
android:background="#color/colorWhite"/>
<EditText
android:id="#+id/row_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_margin="1dp"
android:layout_gravity="center_horizontal"
android:background="#color/colorWhite"/>
</LinearLayout>
Here is my custom object:
Row.java
public class Row
{
public int RowNo;
public String RowText;
public Row(int no, String text)
{
this.RowNo = no;
this.RowText = text;
}
}
Here is my custom ArrayAdapter:
RowAdapter.java
public class RowAdapter extends ArrayAdapter<Row> {
private final Activity _context;
private final ArrayList<Row> rows;
static class ViewHolder
{
EditText RowNo;
EditText RowText;
}
public RowAdapter(Activity context, ArrayList<Row> rows)
{
super(context,R.layout.row_layout, R.id.row_id ,rows);
this._context = context;
this.rows = rows;
}
public View GetView(int position, View convertView, ViewGroup parent){
ViewHolder holder = null;
if(convertView == null)
{
LayoutInflater inflater = _context.getLayoutInflater();
convertView = inflater.inflate(R.layout.row_layout,parent,false);
holder = new ViewHolder();
holder.RowNo = (EditText)convertView.findViewById(R.id.row_no);
holder.RowText = (EditText)convertView.findViewById(R.id.row_text);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
holder.RowNo.setText(rows.get(position).RowNo);
holder.RowText.setText(rows.get(position).RowText);
return convertView;
}
}
Here is my Activity class:
RowActivity.java
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.row_list_page);
listView = (ListView)findViewById(R.id.list_view);
ArrayList<Row> rows = new ArrayList<Row>();
rows.add(new Row(1,"Test"));
rows.add(new Row(2,"Test"));
rows.add(new Row(3"Test"));
RowAdapter adapter = new RowAdapter(this,rows);
listView.setAdapter(adapter);
}
Here is working adapter code
public class RowAdapter extends ArrayAdapter<Row> {
private final Activity _context;
private final ArrayList<Row> rows;
public class ViewHolder
{
EditText RowNo;
EditText RowText;
}
public RowAdapter(Activity context, ArrayList<Row> rows)
{
super(context,R.layout.row_layout, R.id.row_id ,rows);
this._context = context;
this.rows = rows;
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
ViewHolder holder = null;
if(convertView == null)
{
LayoutInflater inflater = _context.getLayoutInflater();
convertView = inflater.inflate(R.layout.row_layout,parent,false);
holder = new ViewHolder();
holder.RowNo = (EditText)convertView.findViewById(R.id.row_no);
holder.RowText = (EditText)convertView.findViewById(R.id.row_text);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
holder.RowNo.setText(""+rows.get(position).RowNo);
holder.RowText.setText(rows.get(position).RowText);
return convertView;
}
}
Your getting exception at holder.RowNo.setText(rows.get(position).RowNo);
so replace it with
holder.RowNo.setText(""+rows.get(position).RowNo);
Change with below code:-
RowAdapter.java
public class RowAdapter extends BaseAdapter {
private final Context _context;
private final ArrayList<Row> rows;
public RowAdapter(Context context, ArrayList<Row> rows)
{
this._context = context;
this.rows = rows;
}
#Override
public int getCount() {
return rows.size();
}
#Override
public Object getItem(int position) {
return rows;
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent){
LayoutInflater inflater = (LayoutInflater) _context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView=inflater.inflate(R.layout.row_layout, null,true);
EditText RowNo = (EditText) rowView.findViewById(R.id.row_no);
EditText RowText = (EditText) rowView.findViewById(R.id.row_text);
RowNo.setText(rows.get(position).RowNo);
RowText.setText(rows.get(position).RowText);
return rowView;
}
}
public View getView (int position, View convertView, ViewGroup parent)
This method is called to get view object.
In your code there is GetView, not getView
change your
public View GetView(int position, View convertView, ViewGroup parent)
with
#Override
public View getView(int position, View convertView, ViewGroup parent)
and
holder.RowNo.setText(rows.get(position).RowNo);
with
holder.RowNo.setText(""+rows.get(position).RowNo);
I'm basically trying to display multiple views via the same ListView adapter. However, the adapter ends up generating multiple duplicates and crashes sometimes as well with a NullPointer. My guess is that I have implemented the adapter all wrong. Here's my complete code:
The item could either be a photo or a text.
Adapter:
public class FeedAdapter extends BaseAdapter {
static private Activity activity;
private static LayoutInflater inflater = null;
ArrayList<ActivityTable> actList = new ArrayList<ActivityTable>();
Holder holder;
public FeedAdapter(Activity a, ArrayList<ActivityTable> actList) {
activity = a;
this.actList = actList;
}
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
final ActivityTable act = actList.get(position);
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
if (act.getType().equals("text")) {
convertView = inflater.inflate(R.layout.feed_single_text, null);
holder = new Holder();
//More code that Set the caption to the holder
convertView.setTag(holder);
}
if (act.getType().equals("photo")) {
convertView = inflater.inflate(R.layout.feed_single_picture, parent, false);
holder = new Holder();
holder.media = (ImageView) convertView.findViewById(R.id.postphoto);
//More code that Set the photo to the holder
convertView.setTag(holder);
}
} else {
holder = (Holder) convertView.getTag();
}
return convertView;
}
public static class Holder {
ImageView media;
TextView caption;
}
}
Am I inflating multiple views in the same adapter the wrong way? Can anyone point out the error?
You have 2 diffrent layout for each row so I think you should add
#Override
public int getViewTypeCount() {
return 2;
}
to your listview adapter
In your code, try to initial your LayoutInflater inside the constructor of your adapter
public FeedAdapter(Activity a, ArrayList<ActivityTable> actList) {
...
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
And also you should optimize your ListView performance
Here is my experience
It is good to have these 3 in place.
#Override
public int getCount() {
return actList().size();
}
#Override
public Object getItem(int position) {
return actList().get(position);
}
#Override
public long getItemId(int position) {
return position;
}
Here is the important part,
first you have to tell the adapter how many type,
and then you have to tell the adapter how to determine the type.
Here I tell type View Type = 2
#Override
public int getViewTypeCount() {
return 2;
}
and Here I tell the adapter How I put the type number into the array
I use setType = 0 || set Type = 1
personal preference here: I like to use int instead of String
#Override
public int getItemViewType(int position) {
return act.get(position).getType();
}
and then later at the getView
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
int listViewItemType = getItemViewType(position);
if (v == null) {
..whatevever you doing to make v not null
}
if (listViewItemType == 0) {
//Do something
}else if(listViewItemType == 1){
// Do something different
}
return v;
}
Yes you will get duplicate Item, Because Convertview is reusing. Once convertview is created that view using if you scroll.
So better use single layout and with both Image and text. Based type hide any one.
xml file
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/ImgFeed"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/txtCaption"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
try this you are using ImageView insted of TextView
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
final ActivityTable act = actList.get(position);
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = inflater.inflate(R.layout.feed_layout, null);
holder = new Holder();
holder.caption = (TextView) convertView.findViewById(R.id.txtCaption);
holder.media = (ImageView) convertView.findViewById(R.id.ImgFeed);
if (act.getType().equals("text")) {
holder.media.setVisibility(View.GONE)
}
else if (act.getType().equals("photo")) {
holder.caption.setVisibility(View.GONE)
}
convertView.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
return convertView;
}