bjv wrote:
> Ok, it was a bad subject. I just needed a way to provide a Bitmap drawable
> in my App's memory (not on sdcard) to the SearchWidget suggestion handling
> code. Here's the answer for anyone who needs to provide their own image
> that isn't stored somewhere as a file and easily accessible via one of the
> other content providers that are already there.
>
> I created a ContentProvider in my app. The key methods look like the
> following:
>
> @Override
>
> public ParcelFileDescriptor openFile(Uri uri, String mode)
>
> throws FileNotFoundException {
>
> ParcelFileDescriptor[] pipe=null;
>
No need for this assignment as you throw away the value immediately
without using it.
> try {
>
> pipe=ParcelFileDescriptor.createPipe();
>
> String bmapId = uri.getLastPathSegment();
>
> IconInfo ai = getIconInfo.lookup(Integer.parseInt(bmapId));
>
> if (ai == null)
>
> throw new FileNotFoundException("Bitmap "+bmapId+" not found");
>
Don't omit the curly braces!
> Bitmap bitmap = ((BitmapDrawable)ai.icon).getBitmap();
>
> if (bitmap == null)
>
> throw new FileNotFoundException("Drawable is not Bitmap");
>
> // The following task/thread is needed if the bmap is larger than
> 64kb
>
> new BitmapCopyTask(bitmap,
>
> new AutoCloseOutputStream(pipe[1])).execute(null,
> null,null);
>
Do not indent your posted code with TAB characters.
> }
>
> catch (IOException e) {
>
> MyLog.d(getClass().getSimpleName(), "Exception opening pipe: %s",
> e.getMessage());
>
> throw new FileNotFoundException("Could not open pipe for: "
>
> + uri.toString());
>
You should include the original exception as a cause of your wrapped
exception, which normally is already
a 'FileNotFoundException', so one wonders why you'd wrap a FNFE inside an
FNFE.
> }
>
>
> return(pipe[0]);
>
> }
>
>
> class BitmapCopyTask extends AsyncTask<Void,Void,Void> {
>
> OutputStream out;
>
Consider making these members 'final'.
> Bitmap bmap;
>
> BitmapCopyThread(Bitmap bmap, OutputStream out) {
>
> this.bmap = bmap;
>
> this.out = out;
>
> }
>
> @Override
>
> protected Void doInBackground(Void... arg0) {
>
> bmap.compress(Bitmap.CompressFormat.PNG, 100, out);
>
You didn't check the arguments for 'null'.
> return null;
>
> }
>
> }
>
> I also put the following provider definition in my manifest file:
>
> <provider android:name=".IconProvider"
>
> android:exported="false"
>
> android:authorities="org.example.provider.iconlist.icon" />
>
--
Lew
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