Android UI开发第十五篇——分享一个登录缓冲界面

今天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。

 
 


  
  
public class Main extends Activity {  

  
  
    private Animation anm;  

  
  
    private int marginsTop;  

  
  
    public List<ImageView> images;  

  
  
    public LinearLayout ll;  

  
  
    @Override 

  
  
    public void onCreate(Bundle savedInstanceState) {  

  
  
        super.onCreate(savedInstanceState);  

  
  
 

  
  
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);  

  
  
 

  
  
        requestWindowFeature(Window.FEATURE_NO_TITLE);  

  
  
 

  
  
        DisplayMetrics dm = this.getResources().getDisplayMetrics();  

  
  
 

  
  
        int height = dm.heightPixels;  

  
  
        marginsTop = height - 100;  

  
  
        anm = AnimationUtils.loadAnimation(this, R.anim.myanim);  

  
  
        ll = new LinearLayout(this);  

  
  
        ll.setBackgroundResource(R.drawable.background);  

  
  
 

  
  
        images = new ArrayList<ImageView>();  

  
  
        initImage(ll);  

  
  
        playAnimation();  

  
  
        setContentView(ll);  

  
  
    }  

  
  
    private void playAnimation(){         

  
  
            new Thread(){  

  
  
                @Override 

  
  
                public void run()  

  
  
                {  

  
  
                    try {  

  
  
                        Thread.sleep(1000);  

  
  
                    } catch (InterruptedException e) {  

  
  
                        e.printStackTrace();  

  
  
                    }  

  
  
                    int runcount=0;  

  
  
                    while(true)  

  
  
                    {  

  
  
                        if(runcount<2)  

  
  
                        {  

  
  
                            for(int i=0;i<=6;i++)  

  
  
                            {  

  
  
                                handler.sendEmptyMessage(i);  

  
  
                                try {  

  
  
                                    Thread.sleep(400);  

  
  
                                } catch (InterruptedException e) {  

  
  
                                    e.printStackTrace();  

  
  
                                }  

  
  
                            }  

  
  
                            runcount++;  

  
  
                        }else 

  
  
                        {  

  
  
                            handler.sendEmptyMessage(99);  

  
  
                            runcount=0;  

  
  
                        }  

  
  
                          

  
  
 

  
  
                    }  

  
  
 

  
  
                }  

  
  
 

  
  
            }.start();  

  
  
        }  

  
  
          

  
  
 

  
  
    Handler handler=new Handler(){  

  
  
 

  
  
                @Override 

  
  
                public void handleMessage(Message msg) {                  

  
  
                    switch(msg.what)  

  
  
                    {  

  
  
                    case 0:  

  
  
                        images.get(0).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.l));  

  
  
                        images.get(0).startAnimation(anm);  

  
  
                          

  
  
                        break;  

  
  
                    case 1:  

  
  
                        images.get(1).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.o));  

  
  
                        images.get(1).startAnimation(anm);  

  
  
                        break;  

  
  
                    case 2:  

  
  
                        images.get(2).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.a));  

  
  
                        images.get(2).startAnimation(anm);  

  
  
                        break;  

  
  
                    case 3:  

  
  
                        images.get(3).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.d));  

  
  
                        images.get(3).startAnimation(anm);  

  
  
                        break;  

  
  
                    case 4:  

  
  
                        images.get(4).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.i));  

  
  
                        images.get(4).startAnimation(anm);  

  
  
                        break;  

  
  
                    case 5:  

  
  
                        images.get(5).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.n));  

  
  
                        images.get(5).setAnimation(anm);  

  
  
                        break;  

  
  
                    case 6:  

  
  
                        images.get(6).setImageDrawable(Main.this.getResources().getDrawable(R.drawable.g));  

  
  
                        images.get(6).setAnimation(anm);  

  
  
                        break;  

  
  
                    case 99:  

  
  
                        clearImage();  

  
  
                        break;  

  
  
                    }  

  
  
                }  

  
  
            };  

  
  
    private void clearImage()  

  
  
    {  

  
  
        for(ImageView image:images)  

  
  
        {  

  
  
            image.setImageDrawable(null);  

  
  
            image.destroyDrawingCache();  

  
  
        }  

  
  
    }  

  
  
    private void initImage(LinearLayout layout) {  

  
  
          

  
  
        layout.setGravity(Gravity.CENTER_HORIZONTAL);  

  
  
        LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(40, 40);  

  
  
        param.setMargins(30, marginsTop, 0, 0);  

  
  
          

  
  
        LinearLayout.LayoutParams param2 = new LinearLayout.LayoutParams(40, 40);  

  
  
        param2.setMargins(-5, marginsTop, 0, 0);  

  
  
 

  
  
        ImageView l = new ImageView(this);  

  
  
        l.setLayoutParams(param);  

  
  
        layout.addView(l);  

  
  
        images.add(l);  

  
  
 

  
  
        ImageView o = new ImageView(this);  

  
  
        o.setLayoutParams(param2);  

  
  
        layout.addView(o);  

  
  
        images.add(o);  

  
  
          

  
  
          

  
  
        ImageView a = new ImageView(this);  

  
  
        a.setLayoutParams(param2);  

  
  
        layout.addView(a);  

  
  
        images.add(a);  

  
  
          

  
  
        ImageView d = new ImageView(this);  

  
  
        d.setLayoutParams(param2);  

  
  
        layout.addView(d);  

  
  
        images.add(d);  

  
  
          

  
  
        ImageView i = new ImageView(this);  

  
  
        i.setLayoutParams(param2);  

  
  
        layout.addView(i);  

  
  
        images.add(i);  

  
  
          

  
  
        ImageView n = new ImageView(this);  

  
  
        n.setLayoutParams(param2);  

  
  
        layout.addView(n);  

  
  
        images.add(n);  

  
  
          

  
  
        ImageView g = new ImageView(this);  

  
  
        g.setLayoutParams(param2);  

  
  
        layout.addView(g);  

  
  
        images.add(g);  

  
  
    }  

  
  
} 
 
 

 
 


  
  
<?xml version="1.0" encoding="utf-8"?>  

  
  
 

  
  
<set xmlns:android="http://schemas.android.com/apk/res/android" 

  
  
    android:shareInterpolator="false">  

  
  
    <scale android:interpolator="@android:anim/accelerate_interpolator" 

  
  
        android:fromXScale="0.5"   

  
  
        android:toXScale="1.2"   

  
  
        android:fromYScale="0.5" 

  
  
        android:toYScale="1.2"   

  
  
        android:pivotX="50%"   

  
  
        android:pivotY="50%" 

  
  
        android:fillAfter="false"   

  
  
        android:startOffset="-50" 

  
  
        android:duration="100" 

  
  
/>  

  
  
</set> 
 
 

代码地址：http://www.devdiv.com/thread-101608-1-1.html

     本文转自xyz_lmn51CTO博客，原文链接：http://blog.51cto.com/xyzlmn/817279，如需转载请自行联系原作者