Android ACTION_IMAGE_CAPTURE with EXTRA_OUTPUT in internal memory

问题

When I'm taking a photo from a camera if I'm calling

File file = new File(getFilesDir().getAbsolutePath() + "/myImage.jpg");
Uri outputFileUri = Uri.fromFile(file);

cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);

OK button on camera app is not functioning, simply does nothing (actually won't save it to internal memory I provided I guess and therefore the app itself does nothing).

If I however call

File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/myImage.jpg");
Uri outputFileUri = Uri.fromFile(file);

cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);

everything is fine and photo is stored on SDCard.

My question is, is there a way to store capture photo in full-resolution without SDCard?

回答1:

The native camera app cannot save the image in your app's private internal directories as those are only available to your particular app.

Instead you can create a custom camera activity to save images to your internal directories or you need to use the stock camera app with external storage.

Note: if you plan on creating a custom camera activity make sure you target at least 2.3 and up. Anything below that mark is very difficult to work with.

回答2:

The Camera activity will not be able to save the file into your activity's private files directory, that's why it fails quietly. You can move the image from the external storage into your files dir in onActivityResult.

回答3:

This is possible using the file provider. Please refer sample

  public getOutputUri(@NonNull Context pContext) {
    String photo = photo.jpeg;//your file name
    File photoFile = new File(pContext.getFilesDir(), photo);
    Uri lProviderPath = FileProvider.getUriForFile(pContext,
        pContext.getApplicationContext()
            .getPackageName() + ".provider", photoFile);
    return lProviderPath;
  }



  private void capturePhoto() {
      Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
      cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, getOutputUri(this));
      cameraIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
      startActivityForResult(cameraIntent, 1);
  }

Refer following android document for more details https://developer.android.com/reference/android/support/v4/content/FileProvider

来源：https://stackoverflow.com/questions/13402187/android-action-image-capture-with-extra-output-in-internal-memory