Android启动界面实现

转载自：http://www.eoeandroid.com/thread-112229-1-1.html

启动界面的效果图：

启动界面

主要的实现类LoadingView ：

package wht.android.loading;import android.content.Context;import android.graphics.Canvas;import android.util.AttributeSet;import android.widget.ImageView;public class LoadingView extends ImageView implements Runnable{        private boolean isStop = false;                private int[] imageIds;        private int index = 0;        private int length = 1;                public LoadingView(Context context)        {                this(context, null);        }        public LoadingView(Context context, AttributeSet attrs)        {                super(context, attrs);        }                public void setImageIds(int[] imageId)        {                this.imageIds = imageId;                if(imageIds != null && imageIds.length > 0)                {                        length = imageIds.length;                }        }                        @Override        protected void onDetachedFromWindow()        {                // TODO Auto-generated method stub                super.onDetachedFromWindow();                isStop = true;        }        @Override        protected void onDraw(Canvas canvas)        {                // TODO Auto-generated method stub                super.onDraw(canvas);                if(imageIds != null && imageIds.length > 0)                {                        this.setImageResource(imageIds[index]);                }        }        @Override        public void run()        {                while(!isStop)                {                        index = ++index % length;                        postInvalidate();                        try                        {                                Thread.sleep(400);                        }                        catch (InterruptedException e)                        {                                e.printStackTrace();                        }                }        }                public void startAnim()        {                new Thread(this).start();        }}

MainActivity:

package wht.android.loading;import android.app.Activity;import android.os.Bundle;public class MainActivity extends Activity{        private LoadingView main_imageview;        @Override    public void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        main_imageview = (LoadingView)findViewById(R.id.main_imageview);        initLoadingImages();                new Thread()        {            @Override            public void run()            {                main_imageview.startAnim();            }        }.start();            }        private void initLoadingImages()    {        int[] imageIds = new int[6];        imageIds[0] = R.drawable.loader_frame_1;        imageIds[1] = R.drawable.loader_frame_2;        imageIds[2] = R.drawable.loader_frame_3;        imageIds[3] = R.drawable.loader_frame_4;        imageIds[4] = R.drawable.loader_frame_5;        imageIds[5] = R.drawable.loader_frame_6;                main_imageview.setImageIds(imageIds);    }}

布局文件main.xml

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

LoadingView.zip (78.7 KB)
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