Develop Reference

How to implement nested RecycleView?

I am trying to implement a nested recycle view i read several post online, but i am still having a difficult time. This is what i did so far, i created a main layout which contains my main Recycle view, i then created the main recycle view row item. And populated it by creating an adapter and implementing it in my main activity. Secondly, i crated a layout with my child recycle view as well as the child recycle view row item. The problem arises when i am trying to access this recycle view, i am unsure as to how to go about doing this? I was able to access my parent recycle and implement the adapter in my main activity, but i am not sure as to how to access my child recycle view. Could someone assist me?
**Parent Recycle View**
<?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">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rv_main"
android:layout_width="match_parent"
android:layout_height="match_parent">
</androidx.recyclerview.widget.RecyclerView>
</RelativeLayout>
**Parent Recycle View row**
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<androidx.cardview.widget.CardView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/card_view_home"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:elevation="5dp"
app:cardUseCompatPadding="true">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image_view_movie"
android:layout_width="130dp"
android:layout_height="170dp"
android:scaleType="fitXY"
/>
<LinearLayout
android:id="#+id/layout_mov"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/image_view_movie"
android:layout_margin="1dp"
android:orientation="vertical">
<TextView
android:id="#+id/tv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:text="Mission Impossible"
android:textSize="12sp" />
<TextView
android:id="#+id/tv_genre"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:fontFamily="sans-serif"
android:maxLines="1"
android:text="Action,Comedy..."
android:textSize="12sp" />
</LinearLayout>
</RelativeLayout>
</androidx.cardview.widget.CardView>
</RelativeLayout>
**Child RecycleView**
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/tv_movie_category"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
android:text="Movie Category"
android:textSize="14sp"
android:textStyle="bold" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/home_recycler_view_horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/tv_movie_category"
android:layout_marginLeft="10dp"
android:layout_marginBottom="15dp"
android:orientation="horizontal" />
<View
android:id="#+id/activityMainDivider"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="#+id/home_recycler_view_horizontal"
android:layout_marginBottom="5dp"
android:background="#31C7C7CC" />
</RelativeLayout>
**Child recycle view row**
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:id="#+id/constraintlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="15dp">
<androidx.cardview.widget.CardView
android:id="#+id/cardView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
app:cardElevation="5dp"
app:cardUseCompatPadding="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/newsThumbNail"
android:layout_width="0dp"
android:layout_height="200dp"
android:scaleType="fitXY"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.448"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0" />
<TextView
android:id="#+id/newsTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Dangerous fire is out of control at 24 and park"
android:textSize="17sp"
app:layout_constraintEnd_toEndOf="#+id/newsThumbNail"
app:layout_constraintStart_toStartOf="#+id/newsThumbNail"
app:layout_constraintTop_toBottomOf="#+id/newsThumbNail" />
<TextView
android:id="#+id/newsBody"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="Some text is here"
app:layout_constraintEnd_toEndOf="#+id/newsTitle"
app:layout_constraintStart_toStartOf="#+id/newsTitle"
app:layout_constraintTop_toBottomOf="#+id/newsTitle" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
**Parent Adapter**
public class HomeAdapter extends RecyclerView.Adapter<HomeAdapter.MessageViewHolder> {
private Context context;
private ArrayList<DataModel> userMessagesList;
public HomeAdapter(Context context, ArrayList<DataModel> userMessageList) {
this.context = context;
this.userMessagesList = userMessageList;
}
#NonNull
#Override
public MessageViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.inner_recycleview_row, viewGroup, false);
return new MessageViewHolder(view);
}
//Loads data into views
#Override
public void onBindViewHolder(#NonNull MessageViewHolder viewHolder, int i) {
// viewHolder.senderTextView.setText(message.getMessage());
viewHolder.senderTextView.setText(userMessagesList.get(i).getName());
viewHolder.receiverTextView.setText(userMessagesList.get(i).getAge());
}
#Override
public int getItemCount() {
return userMessagesList.size();
}
//links up ui elements
static class MessageViewHolder extends RecyclerView.ViewHolder {
private TextView senderTextView, receiverTextView;
public MessageViewHolder(#NonNull View itemView) {
super(itemView);
senderTextView = itemView.findViewById(R.id.tv_genre);
receiverTextView = itemView.findViewById(R.id.tv_title);
}
}
}
**Main Activity**
public class MainActivity extends AppCompatActivity {
private RecyclerView messagesRecycleView;
private ArrayList<DataModel> messageList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
messageList = new ArrayList<>();
initRecycleView();
populateArray();
}
public void populateArray(){
DataModel dataModel1= new DataModel("Bob","18");
messageList.add(dataModel1);
}
//set up RecycleView
public void initRecycleView() {
messagesRecycleView = findViewById(R.id.rv_main);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
linearLayoutManager.setStackFromEnd(true);
//linearLayoutManager.setReverseLayout(true);
messagesRecycleView.setLayoutManager(linearLayoutManager);
HomeAdapter homeAdapter = new HomeAdapter(MainActivity.this, messageList);
messagesRecycleView.setAdapter(homeAdapter);
}
}
public class NewsAdapter extends RecyclerView.Adapter<NewsAdapter.MessageViewHolder> {
private Context context;
private ArrayList<DataModel> userMessagesList;
public NewsAdapter(Context context, ArrayList<DataModel> userMessageList) {
this.context = context;
this.userMessagesList = userMessageList;
}
#NonNull
#Override
public MessageViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.news_feed_row, viewGroup, false);
return new MessageViewHolder(view);
}
//Loads data into views
#Override
public void onBindViewHolder(#NonNull MessageViewHolder viewHolder, int i) {
// viewHolder.senderTextView.setText(message.getMessage());
viewHolder.senderTextView.setText(userMessagesList.get(i).getName());
viewHolder.receiverTextView.setText(userMessagesList.get(i).getAge());
}
#Override
public int getItemCount() {
return userMessagesList.size();
}
//links up ui elements
static class MessageViewHolder extends RecyclerView.ViewHolder {
private TextView senderTextView, receiverTextView;
public MessageViewHolder(#NonNull View itemView) {
super(itemView);
senderTextView = itemView.findViewById(R.id.newsBody);
receiverTextView = itemView.findViewById(R.id.newsTitle);
}
}
}

StaggeredGridLayoutManager changing item size on scroll

I am searching for a long time on net. But no use. Please help or try to give some ideas how to solve this problem.
1. Bug Description
image link：https://i.stack.imgur.com/ixvdB.jpg
"left"：Run the apk
"Right"：When I swipe down, the size of the items is changing.
2. Code
MainActivity.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
List<Member> memberList = new ArrayList<>();
memberList.add(new Member(1, R.drawable.baishatunbeach1, "白沙屯海灘1"));
//add Members
recyclerView.setAdapter(new MemberAdapter(this, memberList));
}
private class MemberAdapter extends RecyclerView.Adapter<MemberAdapter.ViewHolder> {
private Context context;
private List<Member> memberList;
MemberAdapter(Context context, List<Member> memberList) {
this.context = context;
this.memberList = memberList;
}
#Override
public MemberAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.recyclerview_cardview_item, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(MemberAdapter.ViewHolder holder, int position) {
final Member member = memberList.get(position);
holder.imageId.setImageResource(member.getImage());
holder.textId.setText(String.valueOf(member.getId()));
holder.textName.setText(member.getName());
holder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ImageView imageView = new ImageView(context);
imageView.setImageResource(member.getImage());
Toast toast = new Toast(context);
toast.setView(imageView);
toast.setDuration(Toast.LENGTH_SHORT);
toast.show();
}
});
}
#Override
public int getItemCount() {
return memberList.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
ImageView imageId;
TextView textId, textName;
ViewHolder(View itemView) {
super(itemView);
imageId = (ImageView) itemView.findViewById(R.id.imageId);
textId = (TextView) itemView.findViewById(R.id.textId);
textName = (TextView) itemView.findViewById(R.id.textName);
}
}
}
}
activity_main.xml
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
recyclerview_cardview_item.xml
<android.support.v7.widget.CardView
android:id="#+id/cardview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="6dp"
android:padding="6dp"
app:cardBackgroundColor="#ffdddddd"
app:cardCornerRadius="28dp"
app:cardElevation="6dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:id="#+id/imageId"
android:layout_width="120dp"
android:layout_height="160dp"
android:layout_marginStart="16dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/textId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:layout_marginStart="20dp" />
<TextView
android:id="#+id/textName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:layout_marginStart="24dp" />
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>

You need to change the height of cardview and linearlayout to wrap_content
<android.support.v7.widget.CardView
android:id="#+id/cardview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
android:padding="6dp"
app:cardBackgroundColor="#ffdddddd"
app:cardCornerRadius="28dp"
app:cardElevation="6dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">

Next item appearing after scolling in RecyclerView

I have created RecyclerView. When it renders on screen it shows only one item per screen. I can see next item when I scroll down RecyclerView. Here is my code
public class LeaveStatusViewAdapter extends RecyclerView
.Adapter<LeaveStatusViewAdapter
.DataObjectHolder> {
private static String LOG_TAG = "MyRecyclerViewAdapter";
private ArrayList<Employee> mDataset;
private static MyClickListener myClickListener;
public static class DataObjectHolder extends RecyclerView.ViewHolder
implements View
.OnClickListener {
TextView startDate;
TextView endDate;
TextView leaveType;
TextView leaveDays;
TextView leaveReason;
TextView leaveStatus;
public DataObjectHolder(View itemView) {
super(itemView);
startDate = (TextView) itemView.findViewById(R.id.textView_StartDate);
endDate = (TextView) itemView.findViewById(R.id.textView_EndDate);
leaveType = (TextView) itemView.findViewById(R.id.textView_LeaveType);
leaveDays = (TextView) itemView.findViewById(R.id.textView_LeaveDays);
leaveReason = (TextView) itemView.findViewById(R.id.textView_LeaveReason);
leaveStatus = (TextView) itemView.findViewById(R.id.textView_LeaveStatus);
Log.i(LOG_TAG, "Adding Listener");
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
myClickListener.onItemClick(getAdapterPosition(), v);
}
}
public void setOnItemClickListener(MyClickListener myClickListener) {
this.myClickListener = myClickListener;
}
public LeaveStatusViewAdapter(ArrayList<Employee> myDataset) {
mDataset = myDataset;
}
#Override
public DataObjectHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_view_row, parent, false);
DataObjectHolder dataObjectHolder = new DataObjectHolder(view);
return dataObjectHolder;
}
#Override
public void onBindViewHolder(DataObjectHolder holder, int position) {
holder.startDate.setText(mDataset.get(position).getLeaveStartDate());
holder.endDate.setText(mDataset.get(position).getLeavesEndDate());
holder.leaveType.setText(mDataset.get(position).getLeaveType());
holder.leaveDays.setText(mDataset.get(position).getLeaveDays());
holder.leaveReason.setText(mDataset.get(position).getLeaveReason());
holder.leaveStatus.setText(mDataset.get(position).getLeaveStatus());
}
public void addItem(Employee dataObj, int index) {
mDataset.add(index, dataObj);
notifyItemInserted(index);
}
public void deleteItem(int index) {
mDataset.remove(index);
notifyItemRemoved(index);
}
#Override
public int getItemCount() {
return mDataset.size();
}
public interface MyClickListener {
public void onItemClick(int position, View v);
}
}
Following is activity class
public class LeaveStatusActivity extends AppCompatActivity {
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
private static String LOG_TAG = "CardViewActivity";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_leave_status);
mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new LeaveStatusViewAdapter(getDataSet());
mRecyclerView.setAdapter(mAdapter);
}
#Override
protected void onResume() {
super.onResume();
((LeaveStatusViewAdapter) mAdapter).setOnItemClickListener(new LeaveStatusViewAdapter
.MyClickListener() {
#Override
public void onItemClick(int position, View v) {
Log.i(LOG_TAG, " Clicked on Item " + position);
}
});
}
private ArrayList<Employee> getDataSet() {
ArrayList results = new ArrayList<Employee>();
for (int index = 0; index < 3; index++) {
Employee obj = new Employee(" : 15/07/2016",
" : 20/07/2016"," : EL: Earned Leave"," : 5"," : Not feeeling well"," : Pending");
results.add(index, obj);
}
return results;
}
}
Following is Layout files
<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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.leave.mcgm.mcgmleavemanagement.LeaveStatusActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"/>
</LinearLayout>
Following custom view for each item in RecyclerView
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:id="#+id/card_view"
android:layout_gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/lbl_StartDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textStyle="bold"
android:layout_alignParentTop="true"
android:text="Start Date"/>
<TextView
android:id="#+id/textView_StartDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toEndOf="#+id/lbl_StartDate" />
<TextView
android:id="#+id/lbl_EndDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="End Date"
android:textStyle="bold"
android:layout_marginStart="24dp"
android:layout_alignParentTop="true"
android:layout_toEndOf="#+id/textView_LeaveReason" />
<TextView
android:id="#+id/textView_EndDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/lbl_EndDate"
android:layout_alignBottom="#+id/lbl_EndDate"
android:layout_toEndOf="#+id/lbl_EndDate" />
<TextView
android:id="#+id/lbl_LeaveType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:text="LeaveType"
android:layout_below="#+id/lbl_EndDate"
android:layout_alignParentStart="true"
android:textStyle="bold"/>
<TextView
android:id="#+id/textView_LeaveType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:text=""
android:layout_alignBaseline="#+id/lbl_LeaveType"
android:layout_alignBottom="#+id/lbl_LeaveType"
android:layout_toEndOf="#+id/lbl_LeaveType" />
<TextView
android:id="#+id/lbl_LeaveDays"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Leave Days"
android:singleLine="true"
android:layout_below="#+id/lbl_EndDate"
android:layout_alignStart="#+id/lbl_EndDate"
android:textStyle="bold"/>
<TextView
android:id="#+id/textView_LeaveDays"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:text=""
android:layout_alignBaseline="#+id/lbl_LeaveDays"
android:layout_alignBottom="#+id/lbl_LeaveDays"
android:layout_toEndOf="#+id/lbl_LeaveDays" />
<TextView
android:id="#+id/lbl_LeaveReason"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Leave Reason"
android:singleLine="true"
android:layout_alignTop="#+id/textView_LeaveReason"
android:layout_alignParentStart="true"
android:textStyle="bold"/>
<TextView
android:id="#+id/textView_LeaveReason"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:text=""
android:layout_below="#+id/textView_LeaveDays"
android:layout_toEndOf="#+id/lbl_LeaveReason" />
<TextView
android:id="#+id/lbl_LeaveStatus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Leave Status"
android:singleLine="true"
android:layout_alignBaseline="#+id/textView_LeaveStatus"
android:layout_alignBottom="#+id/textView_LeaveStatus"
android:layout_alignParentStart="true"
android:textStyle="bold"/>
<TextView
android:id="#+id/textView_LeaveStatus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:text=""
android:layout_below="#+id/lbl_LeaveReason"
android:layout_toEndOf="#+id/lbl_LeaveReason"
android:textAllCaps="true"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
Am I missing something here??

You should change the view of each element of the list to android:layout_height="wrap_content"
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.CardView
android:id="#+id/card_view"
android:layout_gravity="center"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp">
.....
</LinearLayout>
When you use android:layout_height="match_parent" every item of the list will try to use the maximum space possible in the screen

Android EditText match_parent not working in recycler view

I have an activity with viewpager inside it and inside one of the fragment i am using a Recycler view with view item as edit text. Here is my code.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFF00"
android:gravity="center_vertical"
android:orientation="horizontal"
android:padding="#dimen/five">
<CheckBox
android:id="#+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="top"
android:padding="#dimen/three" />
<EditText
android:id="#+id/etEditorListItem"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#null"
android:hint="#string/et_add_item"
android:padding="#dimen/three"/>
</LinearLayout>
Here i have given edittext width as match_parent ( android:layout_width="match_parent") but while running it's getting wrapped based on the width of the hint.
Can someone help me with this.
Adapter:
public class ListAdapter extends RecyclerView.Adapter<NoteListAdapter.ListHolder> {
private List<String> mList = new ArrayList<String>();
private Context mContext;
public ListAdapter(List<String> list){
this.mList = list;
}
#Override
public ListHolder onCreateViewHolder(ViewGroup parent, int viewType) {
this.mContext = parent.getContext();
return new ListHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item,null));
}
#Override
public void onBindViewHolder(final ListHolder holder, final int position) {
holder.etEditorListItem.setText(mList.get(position));
}
#Override
public int getItemCount() {
return mList != null ? mList.size() : 0;
}
public class ListHolder extends RecyclerView.ViewHolder{
public CheckBox checkBox;
public EditText etEditorListItem;
public ListHolder(View itemView) {
super(itemView);
checkBox = (CheckBox)itemView.findViewById(R.id.checkbox);
etEditorListItem = (EditText)itemView.findViewById(R.id.etEditorListItem);
}
}
}
Fragment :
RecyclerView rvList = (RecyclerView) view.findViewById(R.id.rvList);
rvList.setHasFixedSize(true);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
rvList.setLayoutManager(layoutManager);
mListAdapter = new ListAdapter(listItems);
rvList.setAdapter(mListAdapter);
Fragment layout:
<android.support.v7.widget.RecyclerView
android:id="#+id/rvList"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>

Try this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal"
android:background="#FFFF00"
android:weightSum="1"
android:padding="5dp">
<CheckBox
android:id="#+id/checkbox"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_weight="0.1"
android:padding="3dp"/>
<EditText
android:id="#+id/etEditorListItem"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#null"
android:layout_gravity="center_horizontal"
android:layout_weight="0.9"
android:hint="Hello"
android:padding="3dp"/>

RecyclerView strange behaviour inflating cells

I have this layout in two apps, one inside a RecyclerView and the other in a root activity layout.
Here the layout:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:orientation="vertical"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:background="#CFCFCF"
android:minHeight="250dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_red_dark"
>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_blue_bright"
android:layout_above="#+id/commerceTextView"
>
<ImageView
android:src="#drawable/imagen"
android:id="#+id/commerceImageView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"/>
</FrameLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/commerceTextView"
android:gravity="center"
android:textStyle="bold"
android:textSize="24sp"
android:textColor="#F1F1F1"
android:background="#color/colorPrimary"
android:layout_alignParentBottom="true"
android:paddingTop="10dp"
android:text="Best food ever"
android:paddingBottom="10dp"/>
</RelativeLayout>
</FrameLayout>
Here the adapter
public class CommercesAdapter extends RecyclerView.Adapter<CommercesAdapter.CommercesViewHolder> {
private final Context context;
private final ImageLoader loader;
private List<CommerceEntity> commercesList;
#Inject
public CommercesAdapter(Context context, ImageLoader loader) {
this.context = context;
this.loader = loader;
}
public void setData(List<CommerceEntity> commercesList) {
this.commercesList = commercesList;
}
#Override
public CommercesViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context)
.inflate(R.layout.list_comerces_item, parent, false);
return new CommercesViewHolder(view);
}
#Override
public void onBindViewHolder(CommercesViewHolder holder, int position) {
CommerceEntity commerce = commercesList.get(position);
String imageUri = commerce.getImageUri();
String name = commerce.getName();
// holder.commerceTypeName.setText(name);
//loader.bind(holder.commerceImage, imageUri);
}
#Override
public int getItemCount() {
return commercesList.size();
}
public static class CommercesViewHolder extends RecyclerView.ViewHolder {
public ImageView commerceImage;
public TextView commerceTypeName;
public CommercesViewHolder(View itemView) {
super(itemView);
commerceImage = (ImageView) itemView.findViewById(R.id.commerceImageView);
commerceTypeName = (TextView) itemView.findViewById(R.id.commerceTextView);
}
}
Here the RecyclerView
And here in a root activity layout
Someone knows why this happen? if I add android:centerInParent"true" to the nested FrameLayout the image appears but i don't understand why.

In your adapter, uncomment the two lines that you have commented out;
`
// holder.commerceTypeName.setText(name);
//loader.bind(holder.commerceImage, imageUri);
`