android 程序初始化界面.. .

来源：互联网发布：深度卷积网络 dcnn 编辑：程序博客网时间：2024/06/04 18:24

转自：http://menjoy.iteye.com/blog/1255291

启动界面的效果图：

启动界面

主要的实现类LoadingView ：

Java代码  
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:

Java代码  
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

Java代码  
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
        android:orientation="vertical" android:layout_width="fill_parent"  
        android:layout_height="fill_parent" android:background="#e1e1e1">  
        <wht.android.loading.LoadingView  
                android:layout_gravity="center_horizontal" android:layout_height="wrap_content"  
                android:id="@+id/main_imageview" android:src="@drawable/loader_frame_1"  
                android:layout_marginTop="190dp" android:layout_width="wrap_content"  
                ></wht.android.loading.LoadingView>  
  
<TextView  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:text="启动中..."  
        android:layout_marginTop="10dip"  
        android:textColor="#666666"  
        android:layout_gravity="center_horizontal"  
        android:textSize="20sp"  
/>  
</LinearLayout>  

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