Android: get width of Layout programatically having fill_parent in its xml

Question

I have the a LinearLayout with width set in xml as fill_parent , now i need its width at runtime programatically. So i did this:

    Li         


        

Answer 1

You can try to listen to the globalLayout event, and get the width in there. You probably get the -1 because you are trying to get the width before the views are layed-out.

vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
       //Do it here
       LinearLayout layoutGet=(LinearLayout) findViewById(R.id.GameField1);
       LayoutParams layParamsGet= layoutGet.getLayoutParams();
       int width=layParamsGet.width;
       removeOnGlobalLayoutListener(layoutGet, this); // Assuming layoutGet is the View which you got the ViewTreeObserver from
    }
});

@SuppressLint("NewApi")
public static void removeOnGlobalLayoutListener(View v, ViewTreeObserver.OnGlobalLayoutListener listener){
    if (Build.VERSION.SDK_INT < 16) v.getViewTreeObserver().removeGlobalOnLayoutListener(listener); 
    else v.getViewTreeObserver().removeOnGlobalLayoutListener(listener);
}

(vto is the view you want to get the width of)