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Android 启动界面的实现(转载)
网友分享于:Jan 1, 1970 8:00:00 AM    来源: IT货架   

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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();
         }
 
}

 

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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);
     }
}

 

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<? 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 >

Android 启动界面的实现(转载)

标签:android   style   http   color   io   os   java   ar   art   

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