У меня ImageView открывается dialog с 2 вариантами
для выбора фотографии из External Memory
или возьмите новый, используя Camera
он открывает dialog и диалоговое окно успешно принимает permissions, затем открывает камеру или память
но это дает мне error, когда я выбираю фотографию из памяти или утверждаю сделанную фотографию камерой
Я использую OnPhotoReceivedListener interface в dialog fragment для получения photo и imagePath
Вот как я называю Dialog из Activity
public class EditNoteActivity extends AppCompatActivity implements ChoosePhotoDialog.OnPhotoReceivedListener{
private String mSelectedImagePath;
private static final int REQUEST_CODE = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_edit_note);
mSelectedImagePath = null;
ImageView addImageIV = (ImageView) findViewById(R.id.ivAddImage);
addImageIV.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
/*
Make sure all permissions have been verified before opening the dialog
*/
for(int i = 0; i < Permissions.PERMISSIONS.length; i++){
String[] permission = {Permissions.PERMISSIONS[i]};
if(checkPermission(permission)){
if(i == Permissions.PERMISSIONS.length - 1){
Log.d(TAG, "onClick: opening the 'image selection dialog box'.");
ChoosePhotoDialog dialog = new ChoosePhotoDialog();
dialog.show(getSupportFragmentManager(), "ChoosePhotoDialog");
}
}else{
verifyPermissions(permission);
}
}
}
});
/**
* Retrieves the selected image from the bundle (coming from ChoosePhotoDialog)
* @param bitmap
*/
@Override
public void getBitmapImage(Bitmap bitmap) {
Log.d(TAG, "getBitmapImage: got the bitmap: " + bitmap);
//get the bitmap from 'ChangePhotoDialog'
if(bitmap != null) {
compressBitmap(bitmap, 70);
//TODO: Save Image and get It's Url
}
}
@Override
public void getImagePath(String imagePath) {
Log.d(TAG, "getImagePath: got the image path: " + imagePath);
if( !imagePath.equals("")){
imagePath = imagePath.replace(":/", "://");
mSelectedImagePath = imagePath;
mImgUrls += StringManipulation.imgSerialize(new String[]{imagePath, "Description"});
initRecyclerView(mImgUrls);
}
}
public Bitmap compressBitmap(Bitmap bitmap, int quality){
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, stream);
return bitmap;
}
и вот мой Dialog class
public class ChoosePhotoDialog extends DialogFragment {
private static final String TAG = "ChoosePhotoDialog";
public interface OnPhotoReceivedListener{
public void getBitmapImage(Bitmap bitmap);
public void getImagePath(String imagePath);
}
OnPhotoReceivedListener mOnPhotoReceived;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.dialog_camera_or_memory, container, false);
//initalize the textview for starting the camera
TextView takePhoto = (TextView) view.findViewById(R.id.tvTakeCameraPhoto);
takePhoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "onClick: starting camera.");
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, Permissions.CAMERA_REQUEST_CODE);
}
});
//Initialize the textview for choosing an image from memory
TextView selectPhoto = (TextView) view.findViewById(R.id.tvChoosePhotoFromMemory);
selectPhoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "onClick: accessing phones memory.");
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, Permissions.PICK_FILE_REQUEST_CODE);
}
});
// Cancel button for closing the dialog
TextView cancelDialog = (TextView) view.findViewById(R.id.tvCancelTakingPhoto);
cancelDialog.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "onClick: closing dialog.");
getDialog().dismiss();
}
});
return view;
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
try{
mOnPhotoReceived = (OnPhotoReceivedListener) getTargetFragment();
}catch (ClassCastException e){
Log.e(TAG, "onAttach: ClassCastException: " + e.getMessage() );
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
/*
Results when taking a new image with camera
*/
if(requestCode == Permissions.CAMERA_REQUEST_CODE && resultCode == Activity.RESULT_OK){
Log.d(TAG, "onActivityResult: done taking a picture.");
//get the new image bitmap
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
Log.d(TAG, "onActivityResult: received bitmap: " + bitmap);
//send the bitmap and fragment to the interface
mOnPhotoReceived.getBitmapImage(bitmap);
getDialog().dismiss();
}
/*
Results when selecting new image from phone memory
*/
if(requestCode == Permissions.PICK_FILE_REQUEST_CODE && resultCode == Activity.RESULT_OK){
Uri selectedImageUri = data.getData();
File file = new File(selectedImageUri.toString());
Log.d(TAG, "onActivityResult: images: " + file.getPath());
//send the bitmap and fragment to the interface
mOnPhotoReceived.getImagePath(file.getPath());
getDialog().dismiss();
}
}
}
А это ошибка
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=65544, result=-1, data=Intent { dat=content://com.android.providers.media.documents/document/image:14786 flg=0x1 launchParam=MultiScreenLaunchParams { mDisplayId=0 mFlags=0 } }} to activity {com.ahmed_smae.everynote/com.ahmed_smae.everynote.EditNoteActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'void com.ahmed_smae.everynote.Utils.ChoosePhotoDialog$OnPhotoReceivedListener.getImagePath(java.lang.String)' on a null object reference
Как вы думаете, проблема с interface?
Как я могу решить это?