Activity实现
1 import android.app.Activity;
2 import android.os.Bundle;
3 import android.view.MotionEvent;
4 import android.view.View;
5 import android.view.Window;
6 import android.view.animation.AnimationUtils;
7 import android.widget.Gallery;
8 import android.widget.ImageSwitcher;
9 import android.widget.ImageView;
10
11 import android.widget.Gallery.LayoutParams;
12 import android.widget.Toast;
13 import android.widget.ViewSwitcher.ViewFactory;
14
15 public class Switcher extends Activity implements
16 ViewFactory {
17 private ImageSwitcher is;
18 private int Iindex=0;
19 private Gallery gallery;
20 /**
21 * 按下点的X坐标
22 */
23 private float downX;
24 private int DuringTime=10000;
25
26
27 private Integer[] mThumbIds = {R.drawable.a,R.drawable.b, R.drawable.c,
28 R.drawable.d,R.drawable.e, R.drawable.f, R.drawable.g};
29
30 private Integer[] mImageIds ={R.drawable.a,R.drawable.b, R.drawable.c,
31 R.drawable.d,R.drawable.e, R.drawable.f, R.drawable.g};
32
33 @Override
34 protected void onCreate(Bundle savedInstanceState) {
35 // TODO Auto-generated method stub
36 super.onCreate(savedInstanceState);
37 requestWindowFeature(Window.FEATURE_NO_TITLE);
38 setContentView(R.layout.switcher);
39
40 is = (ImageSwitcher) findViewById(R.id.switcher);
41 is.setFactory(this);
42
43 //is.setInAnimation(AnimationUtils.loadAnimation(this,R.anim.push_bottom_in));//渐入效果
44 is.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.slide_in_left));//系统提供渐变效果
45 is.setOutAnimation(AnimationUtils.loadAnimation(this,
46 android.R.anim.slide_out_right));//渐出效果
47 //定时执行图片切换
48 is.postDelayed(new Runnable() {
49 public void run() {
50 if(Iindex==mImageIds.length-1){
51 Iindex=0;
52 }else{
53 Iindex++;
54 }
55 is.setImageResource(mImageIds[Iindex]);
56 is.postDelayed(this, DuringTime);
57 }
58 }, DuringTime);
59
60
61 }
62
63 @Override
64 public View makeView() {
65 ImageView i = new ImageView(this);
66 i.setBackgroundColor(0xFF000000);
67 i.setScaleType(ImageView.ScaleType.FIT_CENTER);
68 i.setLayoutParams(new ImageSwitcher.LayoutParams(
69 LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
70 i.setImageResource(mImageIds[Iindex]);
71 i.setOnTouchListener(new View.OnTouchListener() {
72 @Override
73 public boolean onTouch(View view, MotionEvent event) {
74 switch (event.getAction()) {
75 case MotionEvent.ACTION_DOWN:{
76 //手指按下的X坐标
77 downX = event.getX();
78 break;
79 }
80 case MotionEvent.ACTION_UP:{
81 float lastX = event.getX();
82 //抬起的时候的X坐标大于按下的时候就显示上一张图片
83 if(lastX > downX){
84 if(Iindex==0){
85 Iindex=mImageIds.length-1;
86 }else{
87 Iindex--;
88 }
89 is.setImageResource(mImageIds[Iindex]);
90 }else if(lastX < downX){
91 if(Iindex==mImageIds.length-1){
92 Iindex=0;
93 }else{
94 Iindex++;
95 }
96 is.setImageResource(mImageIds[Iindex]);
97 }
98 }
99
100 break;
101 }
102 return true;
103 }
104
105 });
106 //点击事件换图
107 /* i.setOnClickListener(new View.OnClickListener() {
108 @Override
109 public void onClick(View view) {
110 if(Iindex==mImageIds.length-1){
111 Iindex=0;
112 }else{
113 Iindex++;
114 }
115 is.setImageResource(mImageIds[Iindex]);
116 //sm("you click this picture");
117 }
118 });*/
119 return i;
120 }
121
122
123 private void sm(String mes){
124 Toast.makeText(this,mes,Toast.LENGTH_SHORT).show();
125 }
126 }
布局代码
1 <?xml version="1.0" encoding="utf-8"?>
2
3 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
4 android:layout_width="match_parent"
5 android:layout_height="match_parent">
6
7 <ImageSwitcher android:id="@+id/switcher"
8 android:layout_width="match_parent"
9 android:layout_height="match_parent"
10 android:layout_alignParentTop="true"
11 android:layout_alignParentLeft="true"
12 />
13 </RelativeLayout>
特效定义
<?xml version="1.0" encoding="utf-8"?>
<!-- 上下滑入式 -->
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<!--<translate
android:duration="200"
android:fromYDelta="100%p"
android:toYDelta="0"
/>-->
<scale
android:interpolator= "@android:anim/decelerate_interpolator"
android:fromXScale="0.0"
android:toXScale="0.5"
android:fromYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"
android:startOffset="0"
android:duration="1000"
android:repeatCount="1"
android:repeatMode="reverse"
/>
</set>
