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();
}
}
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);
}
}
<?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>
