Java tutorial
/* * Twittnuker - Twitter client for Android * * Copyright (C) 2013-2014 vanita5 <mail@vanita5.de> * * This program incorporates a modified version of Twidere. * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package de.vanita5.twittnuker.util.accessor; import android.annotation.TargetApi; import android.graphics.drawable.Drawable; import android.os.Build; import android.support.v4.view.ViewCompat; import android.view.View; public final class ViewAccessor { public static void enableHwAccelIfNecessary(final View view) { if (ViewCompat.getLayerType(view) != ViewCompat.LAYER_TYPE_HARDWARE) { ViewCompat.setLayerType(view, ViewCompat.LAYER_TYPE_HARDWARE, null); } } @SuppressWarnings("deprecation") public static void setBackground(final View view, final Drawable background) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) { view.setBackgroundDrawable(background); } else { ViewAccessorJB.setBackground(view, background); } } @TargetApi(Build.VERSION_CODES.JELLY_BEAN) static class ViewAccessorJB { static void setBackground(final View view, final Drawable background) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) return; view.setBackground(background); } } }