Java tutorial
//package com.java2s; /* * Copyright (C) 2017 grandcentrix GmbH * 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.app.Activity; import android.content.pm.ActivityInfo; import android.content.res.Configuration; public class Main { public static void rotateOrientation(Activity activity) { int currentOrientation = activity.getResources().getConfiguration().orientation; switch (currentOrientation) { case Configuration.ORIENTATION_LANDSCAPE: rotateToPortrait(activity); break; case Configuration.ORIENTATION_PORTRAIT: rotateToLandscape(activity); break; default: rotateToLandscape(activity); } } private static void rotateToPortrait(Activity activity) { activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } private static void rotateToLandscape(Activity activity) { activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); } }