Gravity Change PopupWindow

Question

I have a button that should display a popup. And the popup should be aligned on the right side of the button. This is how I do it.

button.setOnClickListener( new View.OnClickListener() { @Override public void onClick( final View view ) { if(popup == null) { final View view = getLayoutInflater().inflate(R.layout.popup, null); popup = new PopupWindow(view); } if(popup.isShowing()) { popup.dismiss(); } else { popup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); popup.setFocusable(true); popup.setWindowLayoutMode(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); popup.showAsDropDown(button, 0, 0); } } } ); 

This code works fine, but the popup is aligned with the left side of the button. Is there an easy way to change the gravity of PopupWindow?

Answer 1

The easiest way I've found is to specify the offset parameter x:

 final View view = popup.getContentView(); view.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED); popup.showAsDropDown(button, button.getWidth() - view.getMeasuredWidth(), 0); 

Answer 2

You can try changing it from an XML file:

 android:layout_graviry="left"