Link To Data Base structer 我最近在我的应用程序中添加了一个功能，该功能允许用户上传个人资料图片，该图片存储在firebase中，然后在应用程序中显示给用户。该图像已成功存储在Firebase中，但是当要显示该图像时，它将删除默认的显示图像，并且什么也不显示。
公共类SettingsActivity扩展了AppCompatActivity {
>>> dis.dis(h)
3 0 LOAD_CONST 1 (99)
2 STORE_FAST 0 (x)
4 LOAD_CONST 0 (None)
6 RETURN_VALUE
答案 0 :(得分：0)
将毕加索的最新版本用作-
implementation 'com.squareup.picasso:picasso:2.71828'
Picasso.get().load(url).resize(100,100).centerCrop().into(imageView);
答案 1 :(得分：0)
尝试以此替换代码！！！
公共类SettingsActivity扩展了AppCompatActivity {
private DatabaseReference mUserDatabase;
private FirebaseUser mCurrentUser;
private CircleImageView mDisplayImage;
private TextView mName;
private TextView mStatus;
private Button mStatusBtn;
private Button mImageBtn;
private static final int GALLERY_PICK = 1;
// Storage Firebase
private StorageReference mImageStorage;
private ProgressDialog mProgressDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
mDisplayImage = (CircleImageView) findViewById(R.id.settings_image);
mName = (TextView) findViewById(R.id.settings_name);
mStatus = (TextView) findViewById(R.id.settings_status);
mStatusBtn = (Button) findViewById(R.id.settings_status_btn);
mImageBtn = (Button) findViewById(R.id.settings_image_btn);
mCurrentUser = FirebaseAuth.getInstance().getCurrentUser();
mImageStorage = FirebaseStorage.getInstance().getReference();
String current_uid = mCurrentUser.getUid();
mUserDatabase = FirebaseDatabase.getInstance().getReference().child("Users").child(current_uid);
mUserDatabase.keepSynced(true);
mUserDatabase.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
String name = dataSnapshot.child("name").getValue().toString();
final String image = dataSnapshot.child("image").getValue().toString();
String status = dataSnapshot.child("status").getValue().toString();
String thumb_image = dataSnapshot.child("thumb_image").getValue().toString();
mName.setText(name);
mStatus.setText(status);
if(!image.equals("default")) {
//Picasso.with(SettingsActivity.this).load(image).placeholder(R.drawable.default_avatar).into(mDisplayImage);
Picasso.with(SettingsActivity.this).load(image).networkPolicy(NetworkPolicy.OFFLINE)
.placeholder(R.drawable.default_avatar).into(mDisplayImage, new Callback() {
@Override
public void onSuccess() {
}
@Override
public void onError() {
Picasso.with(SettingsActivity.this).load(image).placeholder(R.drawable.default_avatar).into(mDisplayImage);
}
});
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
mStatusBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String status_value = mStatus.getText().toString();
Intent status_intent = new Intent(SettingsActivity.this, StatusActivity.class);
status_intent.putExtra("status_value", status_value);
startActivity(status_intent);
}
});
mImageBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent galleryIntent = new Intent();
galleryIntent.setType("image/*");
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(galleryIntent, "SELECT IMAGE"), GALLERY_PICK);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == GALLERY_PICK && resultCode == RESULT_OK){
Uri imageUri = data.getData();
CropImage.activity(imageUri)
.setAspectRatio(1, 1)
.setMinCropWindowSize(500, 500)
.start(this);
//Toast.makeText(SettingsActivity.this, imageUri, Toast.LENGTH_LONG).show();
}
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
mProgressDialog = new ProgressDialog(SettingsActivity.this);
mProgressDialog.setTitle("Uploading Image...");
mProgressDialog.setMessage("Please wait while we upload and process the image.");
mProgressDialog.setCanceledOnTouchOutside(false);
mProgressDialog.show();
Uri resultUri = result.getUri();
File thumb_filePath = new File(resultUri.getPath());
String current_user_id = mCurrentUser.getUid();
Bitmap thumb_bitmap = new Compressor(this)
.setMaxWidth(200)
.setMaxHeight(200)
.setQuality(75)
.compressToBitmap(thumb_filePath);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
thumb_bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
final byte[] thumb_byte = baos.toByteArray();
StorageReference filepath = mImageStorage.child("profile_images").child(current_user_id + ".jpg");
final StorageReference thumb_filepath = mImageStorage.child("profile_images").child("thumbs").child(current_user_id + ".jpg");
filepath.putFile(resultUri).addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
@Override
public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {
if(task.isSuccessful()){
final String download_url = task.getResult().getStorage().getDownloadUrl().toString();
UploadTask uploadTask = thumb_filepath.putBytes(thumb_byte);
uploadTask.addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
@Override
public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> thumb_task) {
String thumb_downloadUrl = thumb_task.getResult().getStorage().getDownloadUrl().toString();
if(thumb_task.isSuccessful()){
Map update_hashMap = new HashMap();
update_hashMap.put("image", download_url);
update_hashMap.put("thumb_image", thumb_downloadUrl);
mUserDatabase.updateChildren(update_hashMap).addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if(task.isSuccessful()){
mProgressDialog.dismiss();
Toast.makeText(SettingsActivity.this, "Success Uploading.", Toast.LENGTH_LONG).show();
}
}
});
} else {
Toast.makeText(SettingsActivity.this, "Error in uploading thumbnail.", Toast.LENGTH_LONG).show();
mProgressDialog.dismiss();
}
}
});
} else {
Toast.makeText(SettingsActivity.this, "Error in uploading.", Toast.LENGTH_LONG).show();
mProgressDialog.dismiss();
}
}
});
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
}
}
}
}