crop() 的输出 URI 始终为空。值得注意的是,结果代码是RESULT_CANCELLED
针对requestCode == Crop.REQUEST_CROP
.
onActivityResult 函数:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_TAKE_PHOTO && resultCode == RESULT_OK) {
// tell mediaplayer to add pic to is database
galleryAddPic();
// Use mPhotopath to start cropping asynchronously
mPhotoCropUri = null;
Crop.of(mPhotoURI, mPhotoCropUri).asSquare().start(this);
} else if (requestCode == Crop.REQUEST_CROP && resultCode == RESULT_OK) {
Log.e("Crop", mPhotoCropUri.toString());
}
}
我正在调用 dispatchTakePictureIntent() 来拍照并存储它。这是代码:
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
}
// Continue only if the File was successfully created
if (photoFile != null) {
mPhotoURI = FileProvider.getUriForFile(this,
"com.example.android.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mPhotoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}
}
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new java.util.Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
mPhotoPath = "file:" + image.getAbsolutePath();
return image;
}
private void galleryAddPic() {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(mPhotoPath);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);
}
存储图片后,我将存储图片的URI传递给Android-crop库的crop函数。