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package wht.android.loading;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.util.AttributeSet;
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import android.widget.ImageView;
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public class LoadingView extends ImageView implements Runnable
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{
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private boolean isStop = false;
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private int[] imageIds;
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private int index = 0;
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private int length = 1;
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public LoadingView(Context context)
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{
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this(context, null);
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}
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public LoadingView(Context context, AttributeSet attrs)
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{
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super(context, attrs);
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}
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public void setImageIds(int[] imageId)
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{
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this.imageIds = imageId;
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if(imageIds != null && imageIds.length > 0)
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{
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length = imageIds.length;
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}
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}
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@Override
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protected void onDetachedFromWindow()
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{
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// TODO Auto-generated method stub
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super.onDetachedFromWindow();
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isStop = true;
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}
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@Override
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protected void onDraw(Canvas canvas)
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{
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// TODO Auto-generated method stub
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super.onDraw(canvas);
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if(imageIds != null && imageIds.length > 0)
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{
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this.setImageResource(imageIds[index]);
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}
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}
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@Override
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public void run()
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{
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while(!isStop)
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{
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index = ++index % length;
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postInvalidate();
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try
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{
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Thread.sleep(400);
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}
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catch (InterruptedException e)
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{
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e.printStackTrace();
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}
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}
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}
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public void startAnim()
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{
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new Thread(this).start();
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}
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}
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package wht.android.loading;
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import android.app.Activity;
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import android.os.Bundle;
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public class MainActivity extends Activity
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{
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private LoadingView main_imageview;
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@Override
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public void onCreate(Bundle savedInstanceState)
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{
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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main_imageview = (LoadingView)findViewById(R.id.main_imageview);
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initLoadingImages();
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new Thread()
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{
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@Override
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public void run()
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{
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main_imageview.startAnim();
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}
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}.start();
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}
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private void initLoadingImages()
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{
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int[] imageIds = new int[6];
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imageIds[0] = R.drawable.loader_frame_1;
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imageIds[1] = R.drawable.loader_frame_2;
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imageIds[2] = R.drawable.loader_frame_3;
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imageIds[3] = R.drawable.loader_frame_4;
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imageIds[4] = R.drawable.loader_frame_5;
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imageIds[5] = R.drawable.loader_frame_6;
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main_imageview.setImageIds(imageIds);
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}
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}
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical" android:layout_width="fill_parent"
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android:layout_height="fill_parent" android:background="#e1e1e1">
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<wht.android.loading.LoadingView
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android:layout_gravity="center_horizontal"android:layout_height="wrap_content"
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android:id="@+id/main_imageview"android:src="@drawable/loader_frame_1"
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android:layout_marginTop="190dp"android:layout_width="wrap_content"
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></wht.android.loading.LoadingView>
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="启动中..."
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android:layout_marginTop="10dip"
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android:textColor="#666666"
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android:layout_gravity="center_horizontal"
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android:textSize="20sp"
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/>
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</LinearLayout>
