1 /* 2 * Copyright 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 18 19 20 package com.example.android.batchstepsensor.cardstream; 21 22 import android.content.Context; 23 import android.util.AttributeSet; 24 import android.view.MotionEvent; 25 import android.view.animation.BounceInterpolator; 26 import android.view.animation.DecelerateInterpolator; 27 import android.widget.Button; 28 29 /** 30 * Custom Button with a special 'pressed' effect for touch events. 31 */ 32 public class CardActionButton extends Button { 33 CardActionButton(Context context)34 public CardActionButton(Context context) { 35 super(context); 36 } 37 CardActionButton(Context context, AttributeSet attrs)38 public CardActionButton(Context context, AttributeSet attrs) { 39 super(context, attrs); 40 } 41 CardActionButton(Context context, AttributeSet attrs, int defStyle)42 public CardActionButton(Context context, AttributeSet attrs, int defStyle) { 43 super(context, attrs, defStyle); 44 } 45 46 @Override onTouchEvent(MotionEvent event)47 public boolean onTouchEvent(MotionEvent event) { 48 49 switch(event.getAction()){ 50 case MotionEvent.ACTION_DOWN: 51 setPressed(true); 52 animate().scaleX(0.98f).scaleY(0.98f).alpha(0.8f).setDuration(100). 53 setInterpolator(new DecelerateInterpolator()); 54 break; 55 case MotionEvent.ACTION_UP: 56 animate().scaleX(1.0f).scaleY(1.f).alpha(1.0f).setDuration(50). 57 setInterpolator(new BounceInterpolator()); 58 break; 59 case MotionEvent.ACTION_CANCEL: 60 animate().scaleX(1.0f).scaleY(1.f).alpha(1.0f).setDuration(50). 61 setInterpolator(new BounceInterpolator()); 62 break; 63 } 64 65 return super.onTouchEvent(event); 66 } 67 68 } 69 70