1 /* 2 * Copyright (C) 2010 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.videoeditor.widgets; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.GestureDetector; 22 import android.view.MotionEvent; 23 import android.view.SurfaceView; 24 25 /** 26 * Surface view for video preview. 27 */ 28 public class PreviewSurfaceView extends SurfaceView { 29 private GestureDetector mSimpleGestureDetector; 30 PreviewSurfaceView(Context context, AttributeSet attrs, int defStyle)31 public PreviewSurfaceView(Context context, AttributeSet attrs, int defStyle) { 32 super(context, attrs, defStyle); 33 } 34 PreviewSurfaceView(Context context, AttributeSet attrs)35 public PreviewSurfaceView(Context context, AttributeSet attrs) { 36 this(context, attrs, 0); 37 } 38 PreviewSurfaceView(Context context)39 public PreviewSurfaceView(Context context) { 40 this(context, null, 0); 41 } 42 43 /** 44 * @param detector The gesture detector 45 */ setGestureListener(GestureDetector detector)46 public void setGestureListener(GestureDetector detector) { 47 mSimpleGestureDetector = detector; 48 } 49 50 @Override onTouchEvent(MotionEvent ev)51 public boolean onTouchEvent(MotionEvent ev) { 52 // Let the gesture detector inspect all events. 53 if (mSimpleGestureDetector != null) { 54 mSimpleGestureDetector.onTouchEvent(ev); 55 } 56 57 super.onTouchEvent(ev); 58 return true; 59 } 60 } 61