1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.systemui.statusbar.stack; 18 19 import android.view.View; 20 21 /** 22 * A state of a view. This can be used to apply a set of view properties to a view with 23 * {@link com.android.systemui.statusbar.stack.StackScrollState} or start animations with 24 * {@link com.android.systemui.statusbar.stack.StackStateAnimator}. 25 */ 26 public class ViewState { 27 28 public float alpha; 29 public float yTranslation; 30 public float zTranslation; 31 public boolean gone; 32 public float scale; 33 34 public void copyFrom(ViewState viewState) { 35 alpha = viewState.alpha; 36 yTranslation = viewState.yTranslation; 37 zTranslation = viewState.zTranslation; 38 gone = viewState.gone; 39 scale = viewState.scale; 40 } 41 42 public void initFrom(View view) { 43 alpha = view.getVisibility() == View.INVISIBLE ? 0.0f : view.getAlpha(); 44 yTranslation = view.getTranslationY(); 45 zTranslation = view.getTranslationZ(); 46 gone = view.getVisibility() == View.GONE; 47 scale = view.getScaleX(); 48 } 49 } 50
