1
私はAndroid開発の初心者です。現在、ライブ壁紙アプリケーションを実装しています。私の質問は、新しいライブ壁紙をアプリケーションから選択すると、現在、私はアプリケーションからライブ壁紙を1つしか設定していませんが、壁紙として設定するアプリケーションから壁紙を選択しているときは、以前に選択した壁紙を表示していません。グリッドライブラリを使ってGif画像を表示しています。ここでは、この 別のライブ壁紙を設定すると、Androidデバイスでライブ壁紙が変更されない
私 WallpaperServiceクラスpublic class GifPaperService extends WallpaperService {
static final String TAG = "gifService";
static final Handler gifHandler = new Handler();
int position;
boolean visible;
ImageAdapter img = new ImageAdapter();
Integer[] mThumb = img.mThumbIds;
@Override
public void onCreate() {
super.onCreate();
Log.v("Helllo", "...");
}
@Override
public Engine onCreateEngine() {
try {
return new GifEngine();
} catch (IOException e) {
Log.w(TAG, "Error creating engine", e);
stopSelf();
return null;
}
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.v("Hello..", ".....");
return super.onStartCommand(intent, flags, startId);
}
class GifEngine extends Engine {
private final Movie gif;
private final int duration;
private final Runnable runnable;
float scaleX;
float scaleY;
int when;
long start;
GifEngine() throws IOException {
MyPreferenceActivity myPref = new MyPreferenceActivity(getApplicationContext());
Log.i("Imageis... ", "Position.." + myPref.getGifImage());
position = myPref.getGifImage();
InputStream is = getResources().openRawResource(mThumb[position]);
Log.i("Imageposition...", "...." + mThumb[position]);
if (is == null) {
throw new IOException("Unable to open whoa.gif");
}
try {
gif = Movie.decodeStream(is);
duration = gif.duration();
} finally {
is.close();
}
when = -1;
runnable = new Runnable() {
@Override
public void run() {
animateGif();
}
};
}
@Override
public void onDestroy() {
super.onDestroy();
gifHandler.removeCallbacks(runnable);
}
@Override
public void onVisibilityChanged(boolean visible) {
super.onVisibilityChanged(visible);
if (visible) {
animateGif();
} else {
gifHandler.removeCallbacks(runnable);
}
}
@Override
public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
super.onSurfaceChanged(holder, format, width, height);
scaleX = width/(1f * gif.width());
scaleY = height/(1f * gif.height());
animateGif();
}
@Override
public void onOffsetsChanged(float xOffset, float yOffset,
float xOffsetStep, float yOffsetStep,
int xPixelOffset, int yPixelOffset) {
super.onOffsetsChanged(
xOffset, yOffset,
xOffsetStep, yOffsetStep,
xPixelOffset, yPixelOffset);
animateGif();
}
void animateGif() {
tick();
SurfaceHolder surfaceHolder = getSurfaceHolder();
Canvas canvas = null;
try {
canvas = surfaceHolder.lockCanvas();
if (canvas != null) {
gifCanvas(canvas);
}
} finally {
if (canvas != null) {
surfaceHolder.unlockCanvasAndPost(canvas);
}
}
gifHandler.removeCallbacks(runnable);
if (isVisible()) {
gifHandler.postDelayed(runnable, 1000L/25L);
}
}
void tick() {
if (when == -1L) {
when = 0;
start = SystemClock.uptimeMillis();
} else {
long diff = SystemClock.uptimeMillis() - start;
when = (int) (diff % duration);
}
}
void gifCanvas(Canvas canvas) {
canvas.save();
canvas.scale(scaleX, scaleY);
gif.setTime(when);
gif.draw(canvas, 0, 0);
canvas.restore();
}
@Override
public void onSurfaceDestroyed(SurfaceHolder holder) {
super.onSurfaceDestroyed(holder);
stopSelf();
gifHandler.removeCallbacks(runnable);
}
}
}
活動壁紙
を設定するためのクラスsetWallpaper.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (Build.VERSION.SDK_INT > 15) {
Intent intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER);
intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, new ComponentName(mContext, GifPaperService.class));
startActivity(intent);
}
}
});
ImageAdapter：
public class ImageAdapter extends BaseAdapter {
static WallpaperInfo info;
private Context mContext;
public ImageAdapter() {
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return mThumbIds[position];
}
public long getItemId(int position) {
return 0;
}
public ImageAdapter(Context c) {
mContext = c;
}
public View getView(final int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null){
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(200, 200));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(3, 3, 3, 3);
imageView.setMaxHeight(300);
imageView.setMaxWidth(300);
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MyPreferenceActivity myPref = new MyPreferenceActivity(mContext);
myPref.setGifImage(position);
Intent intent = new Intent(mContext, FullScreenImage.class);
intent.putExtra("imageID", mThumbIds[position]);
/*intent.putExtra(EXTRA_LIVE_WALLPAPER_INTENT, intent);
intent.putExtra(EXTRA_LIVE_WALLPAPER_SETTINGS, info.getSettingsActivity());
intent.putExtra(EXTRA_LIVE_WALLPAPER_PACKAGE, info.getPackageName());*/
mContext.startActivity(intent);
}
});
Animation anim = AnimationUtils.loadAnimation(mContext.getApplicationContext(), R.anim.fly);
imageView.setAnimation(anim);
anim.start();
}
else{
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbIds[position]);
return imageView;
}
public Integer[] mThumbIds = {
R.drawable.gpp1, R.drawable.gpp2,
R.drawable.gpp3,R.drawable.gpp4,
R.drawable.gpp5,R.drawable.gpp6,
R.drawable.gpp7,R.mipmap.h8,
R.mipmap.h9,R.mipmap.h10,
R.mipmap.h11,R.drawable.gp3,
R.drawable.gp2,R.drawable.gp,
R.drawable.onehalloween
};
}
誰かが問題が分かっている場合は教えてください。あなたのsetWallpaperボタンのクリックイベントで 前の壁紙を破壊し、新しい壁紙を設定するために、事前
誰も翌日に答えなければここにpingしてください。 –
@Yvette ok ....ありがとう –
@Yvetteこんにちは.. –