Android 我正在使用recycler视图，可过滤实现有一些内存错误
我正在使用可过滤实现的recycler视图。我的代码运行良好。我有两个按钮在视图持有人将出现根据firebase数据库的状态。当我单击它们时，更改状态的方法可以正常工作。但当我在同一个按钮上第二次执行此操作时（记住按钮根据firebase状态更改），该方法工作正常，但当我第三次执行此操作时，我的应用程序get struct和应用程序无法从firebase获取数据。它只是在日志中显示以下内容Android 我正在使用recycler视图，可过滤实现有一些内存错误,android,firebase-realtime-database,android-recyclerview,memory-leaks,sectionedrecyclerviewadapter,Android,Firebase Realtime Database,Android Recyclerview,Memory Leaks,Sectionedrecyclerviewadapter,我正在使用可过滤实现的recycler视图。我的代码运行良好。我有两个按钮在视图持有人将出现根据firebase数据库的状态。当我单击它们时，更改状态的方法可以正常工作。但当我在同一个按钮上第二次执行此操作时（记住按钮根据firebase状态更改），该方法工作正常，但当我第三次执行此操作时，我的应用程序get struct和应用程序无法从firebase获取数据。它只是在日志中显示以下内容 I/ple.aadhar_dha: Background concurrent copying GC fr
I/ple.aadhar_dha: Background concurrent copying GC freed 739900(15MB) AllocSpace objects, 0(0B) LOS objects, 49% free, 22MB/45MB, paused 33us total 102.991ms
I/ple.aadhar_dha: Background concurrent copying GC freed 1279638(26MB) AllocSpace objects, 0(0B) LOS objects, 41% free, 33MB/57MB, paused 67us total 145.459ms
I/ple.aadhar_dha: Background concurrent copying GC freed 1325698(27MB) AllocSpace objects, 0(0B) LOS objects, 34% free, 46MB/70MB, paused 51us total 185.916ms
I/ple.aadhar_dha: Background concurrent copying GC freed 1379285(28MB) AllocSpace objects, 0(0B) LOS objects, 30% free, 55MB/79MB, paused 50us total 193.702ms
I/ple.aadhar_dha: Background concurrent copying GC freed 1389025(28MB) AllocSpace objects, 0(0B) LOS objects, 25% free, 69MB/93MB, paused 33us total 295.979ms
public class User_Status extends AppCompatActivity {
Toolbar toolbar;
ProgressBar progressBar;
private final List<UserHelperClass> mDataList=new ArrayList<>();
private user_status_adapter user_status_adapter;
TextInputLayout searchText;
String search_string;
SwipeRefreshLayout refreshLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user__status);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
refreshLayout=findViewById(R.id.refreshLayout_user_control);
refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
getUserInformation();
refreshLayout.setRefreshing(false);
}
});
toolbar = findViewById(R.id.custome_toolbar);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
setActionBar(toolbar);
}
searchText=findViewById(R.id.textlayout_search_layout_user_control);
search_string= Objects.requireNonNull(searchText.getEditText()).toString().trim();
progressBar = (ProgressBar) findViewById(R.id.spin_kit);
Sprite fadingCircle = new Circle();
progressBar.setIndeterminateDrawable(fadingCircle);
progressBar.setVisibility(View.VISIBLE);
RecyclerView mRecylerView = findViewById(R.id.recycler_view_user_control);
mRecylerView.setHasFixedSize(true);
RecyclerView.LayoutManager layoutManager=new LinearLayoutManager(User_Status.this);
user_status_adapter =new user_status_adapter(User_Status.this,mDataList);
mRecylerView.setLayoutManager(layoutManager);
mRecylerView.setAdapter(user_status_adapter);
getUserInformation();
searchText.getEditText().addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
user_status_adapter.getFilter().filter(s);
}
});
}
private void getUserInformation() {
DatabaseReference mRef= FirebaseDatabase.getInstance().getReference("Users");
mRef.orderByChild("username").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
for (DataSnapshot snapshot1:snapshot.getChildren())
{
if (snapshot1.exists())
{
UserHelperClass userHelperClass=snapshot1.getValue(UserHelperClass.class);
assert userHelperClass !=null;
if(!userHelperClass.getUsername().equals("1"))
{
mDataList.add(userHelperClass);
}
}else
{
Log.d("Error","No Snapshot exists");}
}
progressBar.setVisibility(View.GONE);
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
Log.d("Database Error","Failed to fatch data from the server");
}
});
}
}
public class user_status_adapter extends RecyclerView.Adapter<user_status_adapter.MyViewHolder> implements Filterable {
private final Context mContext;
private final List<UserHelperClass> mFilteredList;
private final List<UserHelperClass> mDataList;
public user_status_adapter(Context mContext,List<UserHelperClass>mFilteredList)
{
this.mContext = mContext;
this.mFilteredList = mFilteredList;
mDataList = new ArrayList<>(mFilteredList);
}
@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View rootView = LayoutInflater.from(parent.getContext()).inflate(R.layout.user_status_single_row, parent, false);
return new MyViewHolder(rootView);
}
@Override
public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
final UserHelperClass userHelperClass = mFilteredList.get(position);
holder.fullname.setText(userHelperClass.getFullname());
holder.aadhar.setText(userHelperClass.getUsername());
holder.contactno.setText(userHelperClass.getContactno());
if (userHelperClass.getStatus().equals("Active")) {
holder.activate.setVisibility(View.GONE);
holder.deactivate.setVisibility(View.VISIBLE);
} else {
holder.deactivate.setVisibility(View.GONE);
holder.activate.setVisibility(View.VISIBLE);
}
String uid = userHelperClass.getUid();
String username = userHelperClass.getUsername();
String fullname = userHelperClass.getFullname();
holder.deactivate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setWarningDialog("Deactivate", username, uid);
}
});
holder.activate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setWarningDialog("Activate", username, uid);
}
});
}
@Override
public int getItemCount() {
return mFilteredList.size();
}
@Override
public Filter getFilter() {
return filteredList;
}
//filter function
private final Filter filteredList = new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
List<UserHelperClass> filterlist = new ArrayList<>();
if (constraint == null || constraint.length() == 0) {
filterlist.addAll(mDataList);
} else {
String pattern = constraint.toString().toLowerCase().trim();
for (UserHelperClass item : mDataList) {
if ((item.getFullname().toLowerCase().contains(pattern) && (item.getStatus().equals("Active"))) || (item.getFullname().toLowerCase().contains(pattern) && (item.getStatus().equals("Deactive")))) {
filterlist.add(item);
}
}
}
FilterResults filterResults = new FilterResults();
filterResults.values = filterlist;
return filterResults;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
mFilteredList.clear();
mFilteredList.addAll((List) results.values);
notifyDataSetChanged();
}
};
//view holder class
public static class MyViewHolder extends RecyclerView.ViewHolder{
TextView fullname, aadhar, contactno;
Button activate, deactivate;
public MyViewHolder(@NonNull View itemView) {
super(itemView);
fullname = itemView.findViewById(R.id.user_status_single_name);
aadhar = itemView.findViewById(R.id.user_status_single_aadhar);
contactno = itemView.findViewById(R.id.user_status_single_contact);
activate = itemView.findViewById(R.id.user_status_active_button);
deactivate = itemView.findViewById(R.id.user_status_deactive_button);
}
}
private void setWarningDialog(String string, String username, String uid) {
new KAlertDialog(mContext, KAlertDialog.WARNING_TYPE)
.setTitleText(" !! Warning !! ")
.setTitleTextSize(28)
.setContentText("\n Are you sure want to " + string + " User")
.setContentTextSize(18)
.setConfirmText("Yes")
.showConfirmButton(true)
.setCancelText("No")
.showCancelButton(true)
.confirmButtonColor(R.drawable.button_background_white, mContext)
.cancelButtonColor(R.drawable.button_background, mContext)
.setConfirmClickListener(new KAlertDialog.KAlertClickListener() {
@Override
public void onClick(KAlertDialog kAlertDialog) {
if (string.equals("Deactivate")) {
setDeactiveUser(username, uid);
kAlertDialog.dismissWithAnimation();
} else {
setActiveUser(username, uid);
kAlertDialog.dismissWithAnimation();
}
}
})
.setCancelClickListener(new KAlertDialog.KAlertClickListener() {
@Override
public void onClick(KAlertDialog sDialog) {
sDialog.dismissWithAnimation();
}
})
.show();
}
private void setDeactiveUser(String uname, String UID) {
DatabaseReference mRef = FirebaseDatabase.getInstance().getReference("Users");
mRef.child(uname).child("status").setValue("Deactive").addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
DatabaseReference mRefuid = FirebaseDatabase.getInstance().getReference("authenticated_User/Users");
mRefuid.child(UID).child("status").setValue("Deactive").addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
// setSuccessfulDialog("Deactivated");
DatabaseReference mRefData_Entry=FirebaseDatabase.getInstance().getReference("User_Data_Entry");
mRefData_Entry.child(uname).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
for (DataSnapshot snapshot1:snapshot.getChildren())
{ snapshot1.child("status").getRef().setValue("Deactive");
//DatabaseReference mRefset=FirebaseDatabase.getInstance().getReference("User_Data_Entry");
//mRefset.child(uname).child(snapshot.getKey()).child("status").setValue("Deactive");
}
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
// setDatabaseErrorDialog();
}
});
setSuccessfulDialog("Deactivated");
}
});
}
});
}
private void setActiveUser(String uname, String UID) {
DatabaseReference mRef = FirebaseDatabase.getInstance().getReference("Users");
mRef.child(uname).child("status").setValue("Active").addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
DatabaseReference mRefuid = FirebaseDatabase.getInstance().getReference("authenticated_User/Users");
mRefuid.child(UID).child("status").setValue("Active").addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
// setSuccessfulDialog("Activated");
DatabaseReference mRefData_Entry=FirebaseDatabase.getInstance().getReference("User_Data_Entry");
mRefData_Entry.child(uname).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
for (DataSnapshot snapshot1:snapshot.getChildren())
{
snapshot1.child("status").getRef().setValue("Active");
}
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
//setDatabaseErrorDialog();
}
});
setSuccessfulDialog("Activated");
}
});
}
});
}
private void setSuccessfulDialog(String string) {
new KAlertDialog(mContext, KAlertDialog.CUSTOM_IMAGE_TYPE)
.setTitleText(" !! Successful !! ")
.setTitleTextSize(28)
.setContentText("Good Job !!!\nUser has been Successfully " + string)
.setContentTextSize(18)
.setConfirmText("OK")
.setCustomImage(R.drawable.check, mContext)
.showConfirmButton(true)
.confirmButtonColor(R.drawable.button_background_white, mContext)
.setConfirmClickListener(new KAlertDialog.KAlertClickListener() {
@Override
public void onClick(KAlertDialog kAlertDialog) {
kAlertDialog.dismissWithAnimation();
Intent intent = new Intent(mContext, User_Status.class);
mContext.startActivity(intent);
((User_Status) mContext).finish();
}
})
.show();
}
}
如果你能解决我的问题，那么提前非常感谢你你说的“失败”是什么意思？是车祸吗？如果是这样的话，还有一个堆栈跟踪。请在logcat上查找，并将其添加到您的问题中。@AlexMamo应用程序没有崩溃…只是它卡住了。我正在从successfulDialoge method recycler视图重新启动活动，无法从firebase查看数据，并且进度条可见。一切正常，只是当我第三次使用recyclerview时，它没有填充数据
2021-04-08 21:19:47.513 4696-4803/com.example.aadhar_dhar D/NetworkSecurityConfig: No Network Security Config specified, using platform default
2021-04-08 21:19:51.189 4696-4696/com.example.aadhar_dhar W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@a999727
2021-04-08 21:19:51.194 4696-4696/com.example.aadhar_dhar V/Monotype: SetAppTypeFace- try to flip, app = com.example.aadhar_dhar
2021-04-08 21:19:51.194 4696-4696/com.example.aadhar_dhar V/Monotype: Typeface getFontPathFlipFont - systemFont = default#default
2021-04-08 21:19:58.307 4696-4696/com.example.aadhar_dhar W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@c72c6ae
2021-04-08 21:19:58.311 4696-4696/com.example.aadhar_dhar V/Monotype: SetAppTypeFace- try to flip, app = com.example.aadhar_dhar
2021-04-08 21:19:58.311 4696-4696/com.example.aadhar_dhar V/Monotype: Typeface getFontPathFlipFont - systemFont = default#default
2021-04-08 21:20:08.284 4696-4696/com.example.aadhar_dhar W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@81450f9
2021-04-08 21:20:08.288 4696-4696/com.example.aadhar_dhar V/Monotype: SetAppTypeFace- try to flip, app = com.example.aadhar_dhar
2021-04-08 21:20:08.288 4696-4696/com.example.aadhar_dhar V/Monotype: Typeface getFontPathFlipFont - systemFont = default#default
2021-04-08 21:20:08.448 4696-4712/com.example.aadhar_dhar W/System: A resource failed to call close.
2021-04-08 21:20:22.358 4696-4696/com.example.aadhar_dhar W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@9bceedc
2021-04-08 21:20:22.363 4696-4696/com.example.aadhar_dhar V/Monotype: SetAppTypeFace- try to flip, app = com.example.aadhar_dhar
2021-04-08 21:20:22.363 4696-4696/com.example.aadhar_dhar V/Monotype: Typeface getFontPathFlipFont - systemFont = default#default
2021-04-08 21:20:24.288 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 1597078(32MB) AllocSpace objects, 0(0B) LOS objects, 39% free, 37MB/61MB, paused 27us total 134.621ms
2021-04-08 21:20:25.763 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 2219918(43MB) AllocSpace objects, 0(0B) LOS objects, 36% free, 42MB/66MB, paused 27us total 152.031ms
2021-04-08 21:20:28.603 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 2126451(42MB) AllocSpace objects, 0(0B) LOS objects, 31% free, 52MB/76MB, paused 30us total 185.849ms
2021-04-08 21:20:31.675 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 2338306(46MB) AllocSpace objects, 0(0B) LOS objects, 27% free, 63MB/87MB, paused 29us total 211.099ms
2021-04-08 21:20:34.384 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 2581184(51MB) AllocSpace objects, 0(0B) LOS objects, 25% free, 68MB/92MB, paused 30us total 223.458ms
2021-04-08 21:20:37.016 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 2775023(53MB) AllocSpace objects, 0(0B) LOS objects, 24% free, 74MB/98MB, paused 49us total 236.490ms
2021-04-08 21:20:39.808 4696-4710/com.example.aadhar_dhar I/ple.aadhar_dha: Background concurrent copying GC freed 2932710(56MB) AllocSpace objects, 0(0B) LOS objects, 24% free, 75MB/99MB, paused 72us total 232.474ms