Allow calls to AlertDialog.getButton() before dialog is shown (a1e63319) · Commits · e / os / android_frameworks_base

core/java/android/app/AlertDialog.java

+10 −4

Original line number	Diff line number	Diff line
		@@ -146,9 +146,13 @@ public class AlertDialog extends Dialog implements DialogInterface {
		}

		/**
		* Gets one of the buttons used in the dialog.
		* Gets one of the buttons used in the dialog. Returns null if the specified
		* button does not exist in the dialog.
		* <p>
		* If a button does not exist in the dialog, null will be returned.
		* Prior to API 20, this function could only be called after the dialog was
		* shown. In later versions, this function may be called at any time;
		* however, calling this function locks in various attributes including
		* buttons and icons.
		*
		* @param whichButton The identifier of the button that should be returned.
		* For example, this can be
		@@ -156,6 +160,8 @@ public class AlertDialog extends Dialog implements DialogInterface {
		* @return The button from the dialog, or null if a button does not exist.
		*/
		public Button getButton(int whichButton) {
		// Superclass handles re-entrance and multiple calls.
		dispatchOnCreate(null);
		return mAlert.getButton(whichButton);
		}