I have implemented a recyclerView
in my project.
I have a Button
in my recyclerView
row
. The code for my each row of recyclerView
is like this:
savedmessage_custom_row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="4dp"
android:background="#ffffff"
android:orientation="vertical">
<TextView
android:id="@+id/message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:text="Dummy text" />
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button"
android:visibility="gone"/>
</LinearLayout>
The visibility of button is gone
. I want to change the visibility of this button to 'visible' when someone clicks on the message
textView
above it. I implemented a simple onClickLiestener()
on the message (textView)
and changed the visibility of button
on click of the message
. I knew that wasn't going to work but I wanted to see the results. The results are weird. If I click on the textView of row 1, the button of row 7,17,19 etc also becomes visible. I can guess this might be coz of caching of the viewHolder.
MyViewHolder is something like this:
class MyViewHolder extends RecyclerView.ViewHolder {
TextView message;
public MyViewHolder(final View itemView) {
super(itemView);
message = (TextView) itemView.findViewById(R.id.message);
message.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
itemView.findViewById(R.id.button).setVisibility(View.VISIBLE);
}
});
}
}
Can someone guide me how can I change the visibility of a button, of a perticular row only, of my recyclerView?
Move the click logic away from the ViewHolder:
class MyViewHolder extends RecyclerView.ViewHolder {
TextView message;
Button button;
public MyViewHolder(View itemView) {
super(itemView);
message = (TextView) itemView.findViewById(R.id.message);
button = (Button) itemView.findViewById(R.id.button);
}
}
and place it inside the method onBindViewHolder of your adapter:
@Override
public void onBindViewHolder(final MyViewHolder holder, int position) {
holder.button.setVisibility(View.GONE);
holder.message.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
holder.button.setVisibility(View.VISIBLE);
}
});
}
ViewHolder is reused by the RecyclerView, that's why you are seeing the button visible in other rows.