1 /* 2 * Copyright (C) 2016 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 * Interface for container layouts that scroll and listen for long presses. A child that 23 * wants to handle long press can use this to cancel the parents long press logic or request 24 * to be made visible by scrolling to it. 25 */ 26 public interface ScrollContainer { 27 /** 28 * Request that the view does not perform long press for the current touch. 29 */ 30 void requestDisallowLongPress(); 31 32 /** 33 * Request that the view is made visible by scrolling to it. 34 * Return true if it scrolls. 35 */ 36 boolean scrollTo(View v); 37 38 /** 39 * Like {@link #scrollTo(View)}, but keeps the scroll locked until the user 40 * scrolls, or {@param v} loses focus or is detached. 41 */ 42 void lockScrollTo(View v); 43 44 /** 45 * Request that the view does not dismiss for the current touch. 46 */ 47 void requestDisallowDismiss(); 48 } 49
