I'm having an unusual error. I have this inside a custom viewgroup. The method receives a view and add it to the layout but i keep getting the same error:
if((ViewGroup)view.getParent() != null){
((ViewGroup)view.getParent()).removeView(view);
}
addView(view); <--- Breakpoints puts the error on this line
The error is:
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
Using breakpoints around this shows that "view" even after calling removeView onthe parent keep a reference to its parent..
Some people proposed using a runnable to wait a few seconds before adding it to the view. I havent tried this because it seems more a hack than a solution.. Either way i hope someone may be able to help
Thanks!
PS: Not that it should matter but the parent of this view i'm adding is a custom grid layout i made and its parent is a viewpager.
Edit:
I did a little more breakpoints and debugging and from the looks of it the grid effectively remove the view from its child list (debug) but the child view keeps a reference to that same grid in its mParent variable (debug). How is this possible
EDIT:
In activity:
Button button = new Button(mContext);
button.setOnClickListener(mClickListener);
(...)
Random random = new Random();
button.setText(random.nextInt(9999) + " ");
mCurrentGridLayout.addCustomView(button);
In CustomGridLayout viewgroup class:
public void addCustomView(View view){
if((ViewGroup)view.getParent() != null){
((ViewGroup)view.getParent()).removeView(view);
}
addView(view);
}
I had that same issue when trying to create a custom banner. I believe it's because of animation during layout, that's why a delay could work. In my case, I made a custom viewgroup class to eliminate the animation delay:
private class BannerLayout extends LinearLayout {
public BannerLayout(Context context) {
super(context);
}
@Override
protected void removeDetachedView(View child, boolean animate) {
super.removeDetachedView(child, false);
}
}
Once I did this, everything worked as expected.
Hope it helps!
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