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我是新的Android开发，目前我正在实现动态壁纸应用程序。所以，我的问题是如何我可以更改动态壁纸时，从应用程序中选择新的动态壁纸目前我只设置了一个应用程序的动态壁纸，但问题是，当我从我的应用程序中选择壁纸设置为壁纸时，它不会更改并显示以前选择的壁纸。并且当我重新启动设备时，它会显示。我正在使用Glide库来显示Gif图像。动态壁纸不改变在Android设备时，设置另一个动态壁纸
这里我这WallpaperService类
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);
}
}
}
活动类设置壁纸
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
};
}
如果有人知道问题所在，告诉我。 预先感谢
如果没有人在第二天回答，请在这里给我打电话。 –
@ Yvette ok ....谢谢 –
@Yvette你好.. –