It would help to include the stack crawl of the crash.
On Sun, Mar 28, 2010 at 1:19 PM, Ryan <[email protected]> wrote:
> When I click my live wallpaper, it crashes. I can't see what is wrong.
> Here is my code.
>
> package com.puinyuu.umasaka;
>
> import android.graphics.Bitmap;
> import android.graphics.BitmapFactory;
> import android.graphics.Canvas;
> import android.content.res.Resources;
> import android.os.Handler;
> import android.service.wallpaper.WallpaperService;
> import android.view.SurfaceHolder;
>
> public class UmasakaWallpaper extends WallpaperService {
>
> private final Handler mHandler = new Handler();
>
> @Override
> public void onCreate() {
> super.onCreate();
> }
>
> @Override
> public void onDestroy() {
> super.onDestroy();
> }
>
> @Override
> public Engine onCreateEngine() {
> return new UmasakaEngine();
> }
>
> class UmasakaEngine extends Engine {
>
> private Resources res;
> private Bitmap mUmasakaFrame0;
> private Bitmap mUmasakaFrame1;
> private Bitmap mUmasakaFrame2;
> private Bitmap mUmasakaFrame3;
> private Bitmap mUmasakaFrame4;
> private Bitmap mUmasakaFrame5;
> private Bitmap mUmasakaFrame6;
> private Bitmap mUmasakaFrame7;
> private int mFrameNum = 0;
>
> private final Runnable mGetFrame = new Runnable() {
> public void run() {
> drawFrame();
> }
> };
> private boolean mVisible;
>
> UmasakaEngine() {
> mUmasakaFrame0 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka0);
> mUmasakaFrame1 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka1);
> mUmasakaFrame2 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka2);
> mUmasakaFrame3 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka3);
> mUmasakaFrame4 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka4);
> mUmasakaFrame5 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka5);
> mUmasakaFrame6 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka6);
> mUmasakaFrame7 = BitmapFactory.decodeResource(res,
> R.drawable.umasaka7);
> mUmasakaFrame0 = Bitmap.createBitmap(mUmasakaFrame0);
> mUmasakaFrame1 = Bitmap.createBitmap(mUmasakaFrame1);
> mUmasakaFrame2 = Bitmap.createBitmap(mUmasakaFrame2);
> mUmasakaFrame3 = Bitmap.createBitmap(mUmasakaFrame3);
> mUmasakaFrame4 = Bitmap.createBitmap(mUmasakaFrame4);
> mUmasakaFrame5 = Bitmap.createBitmap(mUmasakaFrame5);
> mUmasakaFrame6 = Bitmap.createBitmap(mUmasakaFrame6);
> mUmasakaFrame7 = Bitmap.createBitmap(mUmasakaFrame7);
> }
>
> @Override
> public void onCreate(SurfaceHolder surfaceHolder) {
> super.onCreate(surfaceHolder);
> }
>
> @Override
> public void onDestroy() {
> super.onDestroy();
> mHandler.removeCallbacks(mGetFrame);
> }
>
> @Override
> public void onVisibilityChanged(boolean visible) {
> mVisible = visible;
> if (visible) {
> drawFrame();
> } else {
> mHandler.removeCallbacks(mGetFrame);
> }
> }
>
> @Override
> public void onSurfaceChanged(SurfaceHolder holder, int format,
> int width, int height) {
> super.onSurfaceChanged(holder, format, width, height);
> drawFrame();
> }
>
> @Override
> public void onSurfaceCreated(SurfaceHolder holder) {
> super.onSurfaceCreated(holder);
> }
>
> @Override
> public void onSurfaceDestroyed(SurfaceHolder holder) {
> super.onSurfaceDestroyed(holder);
> mVisible = false;
> mHandler.removeCallbacks(mGetFrame);
> }
>
> void drawFrame() {
> final SurfaceHolder holder = getSurfaceHolder();
>
> Canvas c = null;
> try {
> c = holder.lockCanvas();
> if (c != null) {
> getFrame(c);
> }
> } finally {
> if (c != null) holder.unlockCanvasAndPost(c);
> }
>
> // Reschedule the next redraw
> mHandler.removeCallbacks(mGetFrame);
> if (mVisible && mFrameNum == 0) {
> mHandler.postDelayed(mGetFrame, 90);
> }
> if (mVisible && mFrameNum == 1) {
> mHandler.postDelayed(mGetFrame, 60);
> }
> if (mVisible && mFrameNum == 2) {
> mHandler.postDelayed(mGetFrame, 140);
> }
> if (mVisible && mFrameNum == 3) {
> mHandler.postDelayed(mGetFrame, 60);
> }
> if (mVisible && mFrameNum == 4) {
> mHandler.postDelayed(mGetFrame, 90);
> }
> if (mVisible && mFrameNum == 5) {
> mHandler.postDelayed(mGetFrame, 60);
> }
> if (mVisible && mFrameNum == 6) {
> mHandler.postDelayed(mGetFrame, 130);
> }
> if (mVisible && mFrameNum == 7) {
> mHandler.postDelayed(mGetFrame, 60);
> }
> }
>
> void getFrame(Canvas c) {
> c.save();
> if (mFrameNum == 0) {
> c.drawBitmap(mUmasakaFrame0, 100, 100, null);
> }
> if (mFrameNum == 1) {
> c.drawBitmap(mUmasakaFrame1, 100, 100, null);
> }
> if (mFrameNum == 2) {
> c.drawBitmap(mUmasakaFrame2, 100, 100, null);
> }
> if (mFrameNum == 3) {
> c.drawBitmap(mUmasakaFrame3, 100, 100, null);
> }
> if (mFrameNum == 4) {
> c.drawBitmap(mUmasakaFrame4, 100, 100, null);
> }
> if (mFrameNum == 5) {
> c.drawBitmap(mUmasakaFrame5, 100, 100, null);
> }
> if (mFrameNum == 6) {
> c.drawBitmap(mUmasakaFrame6, 100, 100, null);
> }
> if (mFrameNum == 7) {
> c.drawBitmap(mUmasakaFrame7, 100, 100, null);
> }
> mFrameNum = mFrameNum + 1;
> c.restore();
> }
> }
> }
>
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>
--
Dianne Hackborn
Android framework engineer
[email protected]
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
answer them.
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