1 /* 2 * Copyright (C) 2013 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.example.android.input.multitouch.basicMultitouch; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.view.MotionEvent; 22 23 import com.android.example.input.multitouch.basicMultitouch.R; 24 25 /** 26 * This is an example of keeping track of individual touches across multiple 27 * {@link MotionEvent}s. 28 * <p> 29 * This is illustrated by a View ({@link TouchDisplayView}) that responds to 30 * touch events and draws coloured circles for each pointer, stores the last 31 * positions of this pointer and draws them. This example shows the relationship 32 * between MotionEvent indices, pointer identifiers and actions. 33 * 34 * @see MotionEvent 35 */ 36 public class MainActivity extends Activity { 37 TouchDisplayView mView; 38 39 @Override onCreate(Bundle savedInstanceState)40 protected void onCreate(Bundle savedInstanceState) { 41 super.onCreate(savedInstanceState); 42 43 setContentView(R.layout.layout_mainactivity); 44 } 45 46 } 47