Java tutorial
//package com.java2s; /** * Copyright 2016 Alex Yanchenko * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.view.View; import android.view.ViewTreeObserver.OnGlobalLayoutListener; public class Main { public static void runOnLayoutDone(final View view, final Runnable runnable) { OnGlobalLayoutListener l = new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { view.getViewTreeObserver().removeGlobalOnLayoutListener(this); runnable.run(); } }; view.getViewTreeObserver().addOnGlobalLayoutListener(l); } }