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(){  

                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);  

                    case 2:  

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

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

                    case 3:  

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

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

                    case 4:  

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

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

                    case 5:  

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

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

                    case 6:  

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

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

                    case 99:  

                        clearImage();  

            };  

    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> 

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     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