1 /* 2 * Copyright (C) 2025 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.wm.shell.appzoomout; 18 19 import com.android.wm.shell.shared.annotations.ExternalThread; 20 21 /** 22 * Interface to engage with the app zoom out feature. 23 */ 24 @ExternalThread 25 public interface AppZoomOut { 26 27 /** 28 * Called when the zoom out progress is updated, which is used to scale down the current app 29 * surface from fullscreen to the max pushback level we want to apply. {@param progress} ranges 30 * between [0,1], 0 when fullscreen, 1 when it's at the max pushback level. 31 */ setProgress(float progress)32 void setProgress(float progress); 33 } 34