我有一个Android应用程序时遇到问题，我想实现插入个人资料照片并将其保存在Firebase存储中的功能，但是当我想用新的照片更新图像时，它仍然是前一张。更新的想法是删除当前的并插入新的。消除和加载阶段很成功，实际上是在Storage中显示了更新的照片，但奇怪的是该应用程序让我看到了旧图像。您对如何解决此问题有任何想法吗？
公共类ImageDetailsActivity扩展了AppCompatActivity {
private static final int PICK_IMAGE_REQUEST = 1;
private Button mButtonChooseImage;
private Button mButtonUpdate;
private TextView key1;
private EditText mEditTextFileNameAr;
private EditText mEditTextFileNameEn;
private EditText mEditTextFileNumberAr;
private EditText mEditTextFileNumberEn;
private EditText mEditTextFileDateAr;
private EditText mEditTextFileDateEn;
private EditText mEditTextFileDateExpAr;
private EditText mEditTextFileDateExpEn;
private EditText mEditTextFileDateRes;
private EditText mEditTextFileType;
private EditText mEditTextFileNationality;
private EditText mEditTextFileTypeBlood;
private EditText mEditTextFileRestrictions;
private ImageView mImageView;
private TextView mTextAddPhoto;
private ImageButton mImageButtonShowUploads;
private ProgressBar mProgressBar;
private String strImage;
private String image;
private Uri mImageUri;
private StorageReference mStorageRef;
private DatabaseReference mDatabaseRef;
private StorageTask mUploadTask;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_details);
mButtonChooseImage = findViewById(R.id.button_update_image);
mButtonUpdate = findViewById(R.id.button_update);
mEditTextFileNameAr = findViewById(R.id.nameAr);
mEditTextFileNameEn = findViewById(R.id.nameEn);
mEditTextFileNumberAr = findViewById(R.id.number_id_ar);
mEditTextFileNumberEn = findViewById(R.id.number_id_en);
mEditTextFileDateAr = findViewById(R.id.date_ber);
mEditTextFileDateEn = findViewById(R.id.date_ber_en);
mEditTextFileDateExpAr = findViewById(R.id.date_exp);
mEditTextFileDateExpEn = findViewById(R.id.date_exp_en);
mEditTextFileDateRes = findViewById(R.id.date_res);
mEditTextFileType = findViewById(R.id.type);
mEditTextFileNationality = findViewById(R.id.nationality);
mEditTextFileTypeBlood = findViewById(R.id.type_blood);
mEditTextFileRestrictions = findViewById(R.id.restrictions);
mImageView = findViewById(R.id.image_view);
mTextAddPhoto = findViewById(R.id.AddPhoto);
mImageButtonShowUploads = findViewById(R.id.home);
mProgressBar = findViewById(R.id.progress_bar);
String key = getIntent().getExtras().get("selectedKey").toString();
mStorageRef = FirebaseStorage.getInstance().getReference().child("uploads").child(key);
mDatabaseRef = FirebaseDatabase.getInstance().getReference().child("uploads").child(key);
key1 = findViewById(R.id.key);
key1.setText(key);
mEditTextFileNameAr.setText(getIntent().getStringExtra("selectedNameAr"));
mEditTextFileNameEn.setText(getIntent().getStringExtra("selectedNameEn"));
mEditTextFileNumberAr.setText(getIntent().getStringExtra("selectedNumberAr"));
mEditTextFileNumberEn.setText(getIntent().getStringExtra("selectedNumberEn"));
mEditTextFileDateAr.setText(getIntent().getStringExtra("selectedDateAr"));
mEditTextFileDateEn.setText(getIntent().getStringExtra("selectedDateEn"));
mEditTextFileDateExpAr.setText(getIntent().getStringExtra("selectedDateExpAr"));
mEditTextFileDateExpEn.setText(getIntent().getStringExtra("selectedDateExpEn"));
mEditTextFileDateRes.setText(getIntent().getStringExtra("selectedDateRes"));
mEditTextFileType.setText(getIntent().getStringExtra("selectedType"));
mEditTextFileNationality.setText(getIntent().getStringExtra("selectedNationality"));
mEditTextFileTypeBlood.setText(getIntent().getStringExtra("selectedTypeBlood"));
mEditTextFileRestrictions.setText(getIntent().getStringExtra("selectedRestrictions"));
Intent intent = getIntent();
strImage = String.valueOf(intent.getStringExtra("selectedImageUri"));
Picasso.with(this)
.load(strImage)
.into(mImageView);
mImageButtonShowUploads.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openImagesActivity();
}
});
mButtonChooseImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openFileChooser();
}
});
mButtonUpdate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mDatabaseRef.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
dataSnapshot.getRef().child("mNameAr").setValue(mEditTextFileNameAr.getText().toString());
dataSnapshot.getRef().child("mNameEn").setValue(mEditTextFileNameEn.getText().toString());
dataSnapshot.getRef().child("mNumberAr").setValue(mEditTextFileNumberAr.getText().toString());
dataSnapshot.getRef().child("mNumberEn").setValue(mEditTextFileNumberEn.getText().toString());
dataSnapshot.getRef().child("mDateAr").setValue(mEditTextFileDateAr.getText().toString());
dataSnapshot.getRef().child("mDateEn").setValue(mEditTextFileDateEn.getText().toString());
dataSnapshot.getRef().child("mDateExpAr").setValue(mEditTextFileDateExpAr.getText().toString());
dataSnapshot.getRef().child("mDateExpEn").setValue(mEditTextFileDateExpEn.getText().toString());
dataSnapshot.getRef().child("mDateRes").setValue(mEditTextFileDateRes.getText().toString());
dataSnapshot.getRef().child("mType").setValue(mEditTextFileType.getText().toString());
dataSnapshot.getRef().child("mNationality").setValue(mEditTextFileNationality.getText().toString());
dataSnapshot.getRef().child("mTypeBlood").setValue(mEditTextFileTypeBlood.getText().toString());
dataSnapshot.getRef().child("mRestrictions").setValue(mEditTextFileRestrictions.getText().toString());
image = dataSnapshot.child("mImageUrl").getValue().toString();
Toast.makeText(ImageDetailsActivity.this, "تم تحديث المعلومات", Toast.LENGTH_LONG).show();
ImageDetailsActivity.this.finish();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
});
}
private void openFileChooser() {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, PICK_IMAGE_REQUEST);
mImageView.setVisibility(View.VISIBLE);
}
private String getFileExtension(Uri uri) {
ContentResolver cR = getContentResolver();
MimeTypeMap mime = MimeTypeMap.getSingleton();
return mime.getExtensionFromMimeType(cR.getType(uri));
}
@Override
protected 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) {
mImageUri = data.getData();
Picasso.with(this).load(mImageUri).into(mImageView);
}
if (mImageUri != null) {
final StorageReference fileReference = mStorageRef.child(System.currentTimeMillis() + "." + getFileExtension(mImageUri));
fileReference.putFile(mImageUri)
.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
final Task<Uri> downloadUrl = taskSnapshot.getStorage().getDownloadUrl();
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
mProgressBar.setProgress(0);
}
}, 500);
mDatabaseRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Toast.makeText(ImageDetailsActivity.this, e.getMessage(), Toast.LENGTH_LONG).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(ImageDetailsActivity.this, "No file selected", Toast.LENGTH_SHORT).show();
}
}
private void openImagesActivity() {
Intent intent = new Intent(ImageDetailsActivity.this, ImagesActivity.class);
startActivity(intent);
}