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.launcher3.util; 18 19 import android.view.MotionEvent; 20 21 import java.io.PrintWriter; 22 23 public interface TouchController { 24 25 /** 26 * Called when the draglayer receives touch event. 27 */ onControllerTouchEvent(MotionEvent ev)28 boolean onControllerTouchEvent(MotionEvent ev); 29 30 /** 31 * Called when the draglayer receives a intercept touch event. 32 */ onControllerInterceptTouchEvent(MotionEvent ev)33 boolean onControllerInterceptTouchEvent(MotionEvent ev); 34 dump(String prefix, PrintWriter writer)35 default void dump(String prefix, PrintWriter writer) { } 36 } 37