如何将上传到Cloud Storage的图像调整为指定大小? [英] How to resize images uploaded to Cloud Storage to a specified size?
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问题描述
我在我的教授申请中使用RecyclerView，以查看学生列表，其中将包含照片和其他详细信息以及删除选项.我尽力做的所有事情.但是存在一个问题，即来自Firebase的照片无法加载到RecyclerView中.有时它会加载一两张照片，然后停止加载照片.我正在加载应用程序时观察android Studio上的运行"选项.然后我发现类似...
I am using RecyclerView in my application for the professor to see the students list where there will be photos and other details and delete options. Everything I tried to do carefully. But there is a problem that photo from firebase is not loading into the RecyclerView. Sometimes it loads one or two photos then it stops loading photo. I was observing the Run option on android Studio while my app is loading. Then I found something like...
W/art: Throwing OutOfMemoryError "Failed to allocate a 71663628 byte allocation with 4188416 free bytes and 46MB until OOM"
V/FA: Inactivity, disconnecting from the service
为什么这个问题发生在我身上，我真的还没明白.请帮我摆脱这个问题.
Why this problem happening to me, I really didn't get yet. Please, help me to get life from this problem.
寻找了很多之后，我尝试了一些步骤，这些步骤使高速缓存无效/重新启动.但这对我不起作用.
After looking for a lot, I tried some steps where said to invalidate caches/ restart. But that didn't work for me.
这是我RecyclerView的主要活动:
public class HRequestedStudents extends AppCompatActivity {
DatabaseReference databaseReference;
ProgressDialog progressDialog;
List<RegisteredStudent> list = new ArrayList<>();
RecyclerView recyclerView;
RecyclerView.Adapter adapter ;
RequestedStudents madapter;
RegisteredStudent registeredStudent;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hrequested_students);
recyclerView = (RecyclerView) findViewById(R.id.recycleView);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(HRequestedStudents.this));
progressDialog = new ProgressDialog(HRequestedStudents.this);
progressDialog.setMessage("Loading Data...");
progressDialog.show();
databaseReference = FirebaseDatabase.getInstance().getReference("RegisteredStudent");
databaseReference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
list.clear();
for (DataSnapshot dataSnapshot : snapshot.getChildren()) {
registeredStudent = dataSnapshot.getValue(RegisteredStudent.class);
list.add(registeredStudent);
}
adapter = new RequestedStudents(HRequestedStudents.this, list);
recyclerView.setAdapter(adapter);
progressDialog.dismiss();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
progressDialog.dismiss();
}
});
}
}
这是我的适配器活动
public class RequestedStudents extends RecyclerView.Adapter<RequestedStudents.RecyclerViewHolder> {
private Context mContext;
ProgressDialog progressDialog;
List<RegisteredStudent> requestedStudents;
FirebaseStorage mFirebaseStorage = getInstance();
DatabaseReference mRef = FirebaseDatabase.getInstance().getReference("RegisteredStudent");
public RequestedStudents(Context context, List<RegisteredStudent> list) {
mContext=context;
requestedStudents = list;
}
@Override
public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.hrstudentlistitems, parent, false);
return new RecyclerViewHolder(view);
}
@Override
public void onBindViewHolder(RecyclerViewHolder holder, int position) {
RegisteredStudent currentStudentDetails = requestedStudents.get(position);
holder.name.setText("Name: "+currentStudentDetails.getRegeName());
holder.room.setText("Room: "+currentStudentDetails.getRegeRoom());
holder.id.setText("ID: "+currentStudentDetails.getRegeID());
holder.batch.setText("Batch: "+currentStudentDetails.getRegeBatch());
holder.dept.setText("Department: "+currentStudentDetails.getRegeDept());
holder.email = currentStudentDetails.getRegeEmail();
holder.nam = currentStudentDetails.getRegeName();
holder.rum = currentStudentDetails.getRegeRoom();
holder.mobile = currentStudentDetails.getRegeMobile();
holder.pass = currentStudentDetails.getRegePass();
holder.iD = currentStudentDetails.getRegeID();
holder.Batch = currentStudentDetails.getRegeID();
holder.Dept = currentStudentDetails.getRegeDept();
holder.imageUri = currentStudentDetails.getImageUri();
Picasso.get().load(currentStudentDetails.getImageUri()).into(holder.profile_photo);
}
@Override
public int getItemCount() {
return requestedStudents.size();
}
public class RecyclerViewHolder extends RecyclerView.ViewHolder {
public TextView name, id, room, batch, dept;
public String email, mobile, imageUri, pass, iD, nam, rum, uId, Batch, Dept;
public CircleImageView profile_photo;
public Button remove, accept;
public RecyclerViewHolder(View item) {
super(item);
name = item.findViewById(R.id.name);
room = item.findViewById(R.id.room);
id = item.findViewById(R.id.id);
batch = item.findViewById(R.id.batch);
dept = item.findViewById(R.id.dept);
profile_photo = item.findViewById(R.id.profile_photo);
remove = item.findViewById(R.id.remove);
accept = item.findViewById(R.id.accept);
item.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
progressDialog = new ProgressDialog(mContext);
progressDialog.setMessage("Please Wait...");
progressDialog.show();
LayoutInflater inflater = LayoutInflater.from(mContext);
View view = inflater.inflate(R.layout.student_bistarito, null);
CircleImageView imagebi = view.findViewById(R.id.imagebi);
TextView nambi = view.findViewById(R.id.nambi);
TextView rumbi = view.findViewById(R.id.rumbi);
Button call = view.findViewById(R.id.call);
Button cancel = view.findViewById(R.id.cancel);
final AlertDialog alertDialog = new AlertDialog.Builder(mContext).create();
nambi.setText("Name: " + nam);
rumbi.setText("Room: " + rum);
Picasso.get().load(imageUri).into(imagebi);
progressDialog.dismiss();
uId = FirebaseAuth.getInstance().getUid();
call.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(Intent.ACTION_CALL);
i.setData(Uri.parse("tel:" + mobile));
if (ContextCompat.checkSelfPermission(mContext, CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
mContext.startActivity(i);
} else {
Toast.makeText(mContext, "Go to settings and allow call permission", Toast.LENGTH_LONG).show();
}
alertDialog.dismiss();
}
});
cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
Toast.makeText(mContext, "Shubho", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
Toast.makeText(mContext, e.getMessage(), Toast.LENGTH_LONG).show();
}
alertDialog.dismiss();
}
});
alertDialog.setView(view);
alertDialog.show();
alertDialog.getWindow().setBackgroundDrawable(null);
}
});
profile_photo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
LayoutInflater inflater = LayoutInflater.from(mContext);
View vi = inflater.inflate(R.layout.activity_photo, null);
ImageView photo = vi.findViewById(R.id.image);
Button close = vi.findViewById(R.id.close);
final AlertDialog ad = new AlertDialog.Builder(mContext).create();
Picasso.get().load(imageUri).into(photo);
close.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ad.dismiss();
}
});
ad.setView(vi);
ad.show();
ad.getWindow().setBackgroundDrawable(null);
}
});
accept.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
remove.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setTitle("Delete");
builder.setMessage("Are you sure to remove this student?");
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
Query query = mRef.orderByChild("email").equalTo(email);
query.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot ds : dataSnapshot.getChildren()) {
ds.getRef().removeValue();
}
Toast.makeText(mContext, "Removed Successfully!", Toast.LENGTH_SHORT).show();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(mContext, databaseError.getMessage(), Toast.LENGTH_SHORT).show();
}
});
StorageReference mPictureReferance = getInstance().getReferenceFromUrl(imageUri);
mPictureReferance.delete().addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
Toast.makeText(mContext, "Removed Successfully!", Toast.LENGTH_SHORT).show();
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Toast.makeText(mContext, e.getMessage(), Toast.LENGTH_SHORT).show();
}
});
} catch (Exception e) {
Toast.makeText(mContext, e.getMessage(), Toast.LENGTH_LONG).show();
}
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
});
}
}
}
我想将所有图像加载到RecyclerView中，而不会出现错误行不活动，正在断开与服务的连接".我该如何解决?
I want to load all images into the RecyclerView without getting the error line "Inactivity, Disconnecting from the service". How can I solve this?
推荐答案
The best solution I can think of would be to use the Resize Images Extension:
将上传到Cloud Storage的图像调整为指定大小，并存储原始图像和调整后的图像.
Resizes images uploaded to Cloud Storage to a specified size, and stores both the original and resized images.
以下是Github repo .
Here is the Github repo.
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