/* * Copyright (C) 2011 The Android Open Source Project * * 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. */ package com.android.launcher2; import android.animation.Animator; import android.content.Context; import android.util.AttributeSet; import android.widget.TabHost; public class CustomizeTrayTabHost extends TabHost implements LauncherTransitionable { private boolean mFirstLayout = true; public CustomizeTrayTabHost(Context context) { super(context); } public CustomizeTrayTabHost(Context context, AttributeSet attrs) { super(context, attrs); } @Override public void onLauncherTransitionStart(Animator animation) { if (animation != null) { setLayerType(LAYER_TYPE_HARDWARE, null); // just a sanity check that we don't build a layer before a call to onLayout if (!mFirstLayout) { // force building the layer at the beginning of the animation, so you don't get a // blip early in the animation buildLayer(); } } } @Override public void onLauncherTransitionEnd(Animator animation) { if (animation != null) { setLayerType(LAYER_TYPE_NONE, null); } } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { mFirstLayout = false; super.onLayout(changed, l, t, r, b); } }