Я делаю портфельное приложение, которое хранит изображения в базе данных firebase с ящиком навигации, и когда я щелкаю свой TextView, который должен открыться, получаю изображение в firebase itcrash и говорит: «Невозможно найти явный класс активности {com.example.johan».johansteve / com.example.johan.johansteve.ImageActivity}; объявили ли вы это действие в своем AndroidManifest.xml? "
private Uri mImageUri;// получаем изображение и используем его для загрузки в базу данных
private StorageReference mStorageRef;
private DatabaseReference mDatabaseRef;
private StorageTask mUploadTask;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_portfolio, container,false);
mButtonChooseImage = v.findViewById(R.id.buttonChooseImage);
mButtonUpload = v.findViewById(R.id.uploadButton);
mTextViewShowUploads = v.findViewById(R.id.Text_View_uploads);
mEditTextFileName = v.findViewById(R.id.edit_text_file_name);
mImageView = v.findViewById(R.id.imageViewAction);
mProgressBar = v.findViewById(R.id.progress_Bar);
mStorageRef = FirebaseStorage.getInstance().getReference("uploads");
mDatabaseRef = FirebaseDatabase.getInstance().getReference("uploads");
//setOnClickListener method used to put actions into our views
mButtonChooseImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openFileChooser();
//method made to choose the type of file
}
});
mButtonUpload.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mUploadTask != null && mUploadTask.isInProgress()){
Toast.makeText(getContext(),"upload in progress", Toast.LENGTH_SHORT).show();
}else {
uploadFile();
}
}
});
mTextViewShowUploads.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openImagesActivity();
}
});
return v;
}
private void openFileChooser() {
Intent intent = new Intent();
intent.setType("image/*"); // declaration of the type of file to be selected
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, PICK_IMAGE_REQUEST); //used it for identify the type of dta we are retrieving
}
// method called when the file is selected
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK
&& data != null && data.getData() != null) {
//process of image selecting using comparation
mImageUri = data.getData(); //used to upload in fireBase
Picasso.get().load(mImageUri).into(mImageView);
//mImageView.setImageURI(mImageUri); native way without picasso
}
}
private String getFileExtension(Uri uri){
ContentResolver cR = getContext().getContentResolver();
MimeTypeMap mime = MimeTypeMap.getSingleton();
return mime.getExtensionFromMimeType(cR.getType(uri));
//this method is only used to get extension from our file eg.jpg
}
private void uploadFile(){
if (mImageUri != null){
StorageReference fileReference = mStorageRef.child(System.currentTimeMillis()
+ "." + getFileExtension(mImageUri));
mUploadTask = fileReference.putFile(mImageUri)
.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
private static final String TAG ="ImagesActivity ";
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
mProgressBar.setProgress(0);
}
},500);
//delays the progress bar to 5 seconds so teh user gets a visual feedback
Toast.makeText(getActivity(), "Upload Successful",Toast.LENGTH_LONG).show();
/**
Upload upload = new Upload(mEditTextFileName.getText().toString().trim(),
taskSnapshot.getStorage().getDownloadUrl().toString());
**/
Task<Uri> urlTask = taskSnapshot.getStorage().getDownloadUrl();
while (!urlTask.isSuccessful());
Uri downloadUrl = urlTask.getResult();
Log.d(TAG, "onSuccess: fireBase download url: " + downloadUrl.toString());
Upload upload = new Upload(mEditTextFileName.getText().toString().trim(),downloadUrl.toString());
String uploadId = mDatabaseRef.push().getKey();
mDatabaseRef.child(uploadId).setValue(upload);
//create a new entry with contents the meter data of our uploads
//recycler view will use these entries to get the data from there
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Toast.makeText(getContext(), e.getMessage(),Toast.LENGTH_SHORT).show();
}
})
.addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
@Override
public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
double progress = (100.0 * taskSnapshot.getBytesTransferred() / taskSnapshot.getTotalByteCount());
mProgressBar.setProgress((int) progress);
}
});
}else{
Toast.makeText(getContext(),"No File Selected",Toast.LENGTH_SHORT).show();
}
}
private void openImagesActivity(){
Intent intent = new Intent(getActivity(),ImageActivity.class);
startActivity(intent);
}}