How can I delete the space when I hide a CardView? I doing an app with android and Firebase and I show the information from firebase in cardviews, but when the info isn't correct the cardview must disappear. The point is that the cardview disappear, but still uses a space in the layout, I've tried the answers in
setVisibility(GONE) view becomes invisible but still occupies space But it doesn't work for me.
@Override
protected void onStart() {
super.onStart();
firebaseAuth.addAuthStateListener(firebaseAuthListener);
final FirebaseRecyclerAdapter<CursosDB, MainActivity.CursosPViewHolder> firebaseRecyclerAdapter =
new FirebaseRecyclerAdapter<CursosDB, MainActivity.CursosPViewHolder>(
CursosDB.class,
R.layout.design_row_cursos,
MainActivity.CursosPViewHolder.class,
myRef)
{
@Override
protected void populateViewHolder(MainActivity.CursosPViewHolder viewHolder, final CursosDB Cmodel, int position)
{
String estado = Cmodel.getSTATUS().toString();
if (estado.equals("OK")){
viewHolder.setPhotoURL(getApplicationContext(), Cmodel.getURI());
viewHolder.setTitle(Cmodel.getTITLE());
viewHolder.setCiudad(Cmodel.getPLACE());
viewHolder.setLevel(Cmodel.getLEVEL());
viewHolder.setDur(Cmodel.getDURACION());
viewHolder.setPrice(Cmodel.getCOSTO());
}else{
RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) viewHolder.mView.getLayoutParams();
layoutParams.setMargins(0,0,0,0);
viewHolder.mView.setLayoutParams(layoutParams);
viewHolder.mView.setVisibility(View.INVISIBLE);
viewHolder.mView.setVisibility(View.GONE);
//viewHolder.mView.setVisibility(View.GONE);
//Toast.makeText(getApplicationContext(), "Ningún curso aprobado aún", Toast.LENGTH_SHORT).show();
}
viewHolder.mView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Toast.makeText(getApplicationContext(), Cmodel.getUSERID(), Toast.LENGTH_LONG).show();
//Toast.makeText(getApplicationContext(), Cmodel.getTITLE(), Toast.LENGTH_SHORT).show();
//Toast.makeText(UsersList.this, user_key, Toast.LENGTH_LONG).show();
}
});
}
};
mCourses.setAdapter(firebaseRecyclerAdapter);
}
This is my layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/cardview_cursos"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:onClick="positionAction"
android:padding="4dp"
android:paddingBottom="4dp"
android:paddingEnd="4dp"
android:paddingStart="4dp"
android:paddingTop="4dp"
app:cardElevation="4dp">
<LinearLayout android:id="@+id/layout_to_hide"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/Cimg"
android:layout_width="match_parent"
android:layout_height="165dp"
android:scaleType="center"
app:srcCompat="@drawable/knowit_logo" />
<TextView
android:id="@+id/Ctitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/Cimg"
android:layout_marginLeft="14dp"
android:layout_marginStart="14dp"
android:paddingTop="8dp"
android:text="Titulo"
android:textStyle="bold" />
<TextView
android:id="@+id/Clugar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/Ctitle"
android:layout_alignStart="@+id/Ctitle"
android:layout_below="@+id/Ctitle"
android:layout_marginTop="10dp"
android:text="Lugar" />
<TextView
android:id="@+id/textView29"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/Clugar"
android:layout_alignStart="@+id/Clugar"
android:layout_below="@+id/Clugar"
android:layout_marginTop="10dp"
android:text="$" />
<TextView
android:id="@+id/Cprice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/textView29"
android:layout_marginBottom="4dp"
android:layout_toEndOf="@+id/textView29"
android:layout_toRightOf="@+id/textView29"
android:paddingLeft="5dp"
android:text="0.0" />
<TextView
android:id="@+id/Cdur"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/Clugar"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginEnd="126dp"
android:layout_marginRight="126dp"
android:text="Duración" />
<TextView
android:id="@+id/Cnivel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/Cprice"
android:layout_alignLeft="@+id/Cdur"
android:layout_alignStart="@+id/Cdur"
android:layout_marginBottom="0dp"
android:text="Nivel" />
</RelativeLayout>
</LinearLayout> </android.support.v7.widget.CardView>
This is the mView:
public static class CursosPViewHolder extends RecyclerView.ViewHolder {
View mView;
public CursosPViewHolder(final View itemView) {
super(itemView);
mView = itemView;
}
public void setTitle(String title){
TextView post_title = (TextView)mView.findViewById(R.id.Ctitle);
post_title.setText(title);
}
public void setCiudad (String ciudad){
TextView post_city = (TextView)mView.findViewById(R.id.Clugar);
post_city.setText(ciudad);
}
public void setPhotoURL(Context ctx, String pgotouserurl) {
ImageView post_image =(ImageView)mView.findViewById(R.id.Cimg);
Picasso.with(ctx).load(pgotouserurl).into(post_image);
} }
I hope you can help me.
Firstly; the XML code you've posted is wrong closed(must end with a CardView tag) also be sure you're pointing the CardView layout with mView field and Only use GONE or INVISIBLE, INVISIBLE will change your Panel ( Root view ) structure but GONE won't