分享一个登录缓冲界面

现在的大多数程序中都有一个缓冲界面，在网上发现了一个很漂亮的缓冲界面，在这里分享一下。主要还是用的android Anim。

java code：

1. public class Main extends Activity {
2.     private Animation anm;
3.     private int marginsTop;
4.     public List<ImageView> images;
5.     public LinearLayout ll;
6.     @Override
7.     public void onCreate(Bundle savedInstanceState) {
8.         super.onCreate(savedInstanceState);
9.  
10.         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
11.  
12.         requestWindowFeature(Window.FEATURE_NO_TITLE);
13.  
14.         DisplayMetrics dm = this.getResources().getDisplayMetrics();
15.  
16.         int height = dm.heightPixels;
17.         marginsTop = height - 100;
18.         anm = AnimationUtils.loadAnimation(this, R.anim.myanim);
19.         ll = new LinearLayout(this);
20.         ll.setBackgroundResource(R.drawable.background);
21.  
22.         images = new ArrayList<ImageView>();
23.         initImage(ll);
24.         playAnimation();
25.         setContentView(ll);
26.     }
27.     private void playAnimation(){        
28.             new Thread(){
29.                 @Override
30.                 public void run()
31.                 {
32.                     try {
33.                         Thread.sleep(1000);
34.                     } catch (InterruptedException e) {
35.                         e.printStackTrace();
36.                     }
37.                     int runcount=0;
38.                     while(true)
39.                     {
40.                         if(runcount<2)
41.                         {
42.                             for(int i=0;i<=6;i++)
43.                             {
44.                                 handler.sendEmptyMessage(i);
45.                                 try {
46.                                     Thread.sleep(400);
47.                                 } catch (InterruptedException e) {
48.                                     e.printStackTrace();
49.                                 }
50.                             }
51.                             runcount++;
52.                         }else
53.                         {
54.                             handler.sendEmptyMessage(99);
55.                             runcount=0;
56.                         }
57.                         
58.  
59.                     }
60.  
61.                 }
62.  
63.             }.start();
64.         }
65.         
66.  
67.     Handler handler=new Handler(){
68.  
69.                 @Override
70.                 public void handleMessage(Message msg) {                  
71.                     switch(msg.what)
72.                     {
73.                     case 0:
74.                         images.get(0).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.l));
75.                         images.get(0).startAnimation(anm);
76.                         
77.                         break;
78.                     case 1:
79.                         images.get(1).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.o));
80.                         images.get(1).startAnimation(anm);
81.                         break;
82.                     case 2:
83.                         images.get(2).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.a));
84.                         images.get(2).startAnimation(anm);
85.                         break;
86.                     case 3:
87.                         images.get(3).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.d));
88.                         images.get(3).startAnimation(anm);
89.                         break;
90.                     case 4:
91.                         images.get(4).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.i));
92.                         images.get(4).startAnimation(anm);
93.                         break;
94.                     case 5:
95.                         images.get(5).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.n));
96.                         images.get(5).setAnimation(anm);
97.                         break;
98.                     case 6:
99.                         images.get(6).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.g));
100.                         images.get(6).setAnimation(anm);
101.                         break;
102.                     case 99:
103.                         clearImage();
104.                         break;
105.                     }
106.                 }
107.             };
108.     private void clearImage()
109.     {
110.         for(ImageView image:images)
111.         {
112.             image.setImageDrawable(null);
113.             image.destroyDrawingCache();
114.         }
115.     }
116.     private void initImage(LinearLayout layout) {
117.         
118.         layout.setGravity(Gravity.CENTER_HORIZONTAL);
119.         LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(40, 40);
120.         param.setMargins(30, marginsTop, 0, 0);
121.         
122.         LinearLayout.LayoutParams param2 = new LinearLayout.LayoutParams(40, 40);
123.         param2.setMargins(-5, marginsTop, 0, 0);
124.  
125.         ImageView l = new ImageView(this);
126.         l.setLayoutParams(param);
127.         layout.addView(l);
128.         images.add(l);
129.  
130.         ImageView o = new ImageView(this);
131.         o.setLayoutParams(param2);
132.         layout.addView(o);
133.         images.add(o);
134.         
135.         
136.         ImageView a = new ImageView(this);
137.         a.setLayoutParams(param2);
138.         layout.addView(a);
139.         images.add(a);
140.         
141.         ImageView d = new ImageView(this);
142.         d.setLayoutParams(param2);
143.         layout.addView(d);
144.         images.add(d);
145.         
146.         ImageView i = new ImageView(this);
147.         i.setLayoutParams(param2);
148.         layout.addView(i);
149.         images.add(i);
150.         
151.         ImageView n = new ImageView(this);
152.         n.setLayoutParams(param2);
153.         layout.addView(n);
154.         images.add(n);
155.         
156.         ImageView g = new ImageView(this);
157.         g.setLayoutParams(param2);
158.         layout.addView(g);
159.         images.add(g);
160.     }
161. }

anim code：

1. <?xml version=“1.0″ encoding=“utf-8″?>
2.  
3. <set xmlns:android=“http://schemas.android.com/apk/res/android”
4.     android:shareInterpolator=“false”>
5.     <scale android:interpolator=“@android:anim/accelerate_interpolator”
6.         android:fromXScale=“0.5″ 
7.         android:toXScale=“1.2″ 
8.         android:fromYScale=“0.5″
9.         android:toYScale=“1.2″ 
10.         android:pivotX=“50%” 
11.         android:pivotY=“50%”
12.         android:fillAfter=“false” 
13.         android:startOffset=“-50″
14.         android:duration=“100″
15. />
16. </set>

显示效果如下：