Hi,
I don't know what the issue is with your animation but your solution
is going to be very very expensive. Calling setWallpaper() writes the
image into the /data partition and Home then loads that image. This
means that every two seconds you are doing one write + one read of a
rather large image. This is going to kill the battery.
On Mon, Nov 17, 2008 at 4:56 AM, Kakyoin <[EMAIL PROTECTED]> wrote:
>
> This is my Service.
>
> It's a simple service which use Handler to invoke "setWallpaper()"
> every 2 seconds.
> [code]
> package com.mseer.testservice;
>
> import java.io.IOException;
> import java.io.InputStream;
>
> import android.app.Service;
> import android.content.Context;
> import android.content.Intent;
> import android.graphics.Bitmap;
> import android.graphics.BitmapFactory;
> import android.os.Handler;
> import android.os.IBinder;
> import android.os.Message;
> import android.util.Log;
>
> public class MyService extends Service{
>
> public IBinder onBind(Intent intent) {
> return null;
> }
>
>
> protected static Service sv;
> protected static InputStream bg01, bg02, bg03, bg04, bg05, bg06;
>
> protected static int index=0;
>
> protected static final int SECONDPASSED = 0x1234;
>
> protected boolean running = false;
>
> Thread counterThread = null;
>
> static Handler myWallpaperHandler = new Handler(){
> public void handleMessage(Message msg) {
> switch (msg.what) {
> case MyService.SECONDPASSED:
>
> updateWallpaper();
>
> break;
> }
> super.handleMessage(msg);
> }
> };
>
>
>
>
>
> protected static void updateWallpaper(){
>
> try {
> if(index==0){
> sv.setWallpaper(bg01);
> }else if(index==1){
> sv.setWallpaper(bg02);
> }else if(index==2){
> sv.setWallpaper(bg03);
> }else if(index==3){
> sv.setWallpaper(bg04);
> }else if(index==4){
> sv.setWallpaper(bg05);
> }else if(index==5){
> sv.setWallpaper(bg06);
> }
>
> index++;
> if(index>5){
> index = 0;
> }
>
>
> } catch (IOException e) {
>
> e.printStackTrace();
> }
>
>
>
>
> }
>
>
>
> public void onCreate(){
> sv = this;
> super.onCreate();
> running = true;
> bg01 = sv.getResources().openRawResource(R.drawable.night01w);
> bg02 = sv.getResources().openRawResource(R.drawable.night02w);
> bg03 = sv.getResources().openRawResource(R.drawable.night03w);
> bg04 = sv.getResources().openRawResource(R.drawable.night04w);
> bg05 = sv.getResources().openRawResource(R.drawable.night05w);
> bg06 = sv.getResources().openRawResource(R.drawable.night06w);
>
> this.counterThread = new Thread(new secondCountDownRunner());
> this.counterThread.start();
>
> }
>
> public void onDestroy() {
> super.onDestroy();
> running = false;
> counterThread.interrupt();
> }
>
>
> }
>
>
>
> class secondCountDownRunner implements Runnable{
> public void run() {
> while(!Thread.currentThread().isInterrupted()){
> Message m = new Message();
> m.what = MyService.SECONDPASSED;
> MyService.myWallpaperHandler.sendMessage(m);
> try {
> Thread.sleep(2000);
> } catch (InterruptedException e) {
> Thread.currentThread().interrupt();
> }
> }
> }
> }[/code]My problem:
>
> The wallpaper changes for 4-5 frames, then stopped...
>
>
> Solutions I've tried:
>
> 1. I tried Logging like this:
>
>
> [code]if(index==0){
> Log.e("BM WALLPAPER","Wallpaper set to WP1 | " +
> bg01);
> sv.setWallpaper(bg01);
> }else if(index==1){
> Log.e("BM WALLPAPER","Wallpaper set to WP2 | " +
> bg02);
> sv.setWallpaper(bg02);
> // and so on...
> [/code]And I can still see the Log message every 2 seconds (but the
> wallpaper dont change anymore)
>
>
>
> 2. I tried creating the InputStream every cycle. It works. But it
> greatly slow down the phone to an unacceptable level.
>
> [code]if(index==0){
> bg01 = sv.getResources().openRawResource
> (R.drawable.night01w);
> sv.setWallpaper(bg01);
> }else if(index==1){
> bg02 = sv.getResources
> ().openRawResource(R.drawable.night02w);
> sv.setWallpaper(bg02);
> // and so on...[/code]3. I've tried all of the above solutions but use
> setWallpaper(Bitmap); instead. The result is even slower...
>
>
>
> My requests to experts in this forum:
> 1. I wonder why my wallpaper animated for only 4-5 frames, then
> stopped. (using the first code snippet posted above)
>
> 2. If anyone happen to know how to efficiently create an animated
> wallpaper, please let me know.
>
>
> Thank you in advance. =)
>
> >
>
--
Romain Guy
www.curious-creature.org
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