id tag

1618 questions

2 answers
22 views
0

There is an error in the toast message (Android)

public abstract class MypageActivity { private RecyclerView recyclerView; private RecyclerView.Adapter mAdapter; Map<String,Object> boxOfficeResult; private ArrayList<Map<String, Object>...

android

2 years ago

1 answers
50 views
0

android Ignore alerts only in certain activities (FCM)

I implemented the firebase chat app and even implemented the notificationI want to ignore the notification only in the chat activity because the notification rings in the chat activity!I think Firebas...

android firebase

2 years ago

1 answers
79 views
0

If you run a map app using Kakao api, it will be forced to end.

/////////////////////Logcat06-10 16:18:29.638 5991-5991/com.example.bencall E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.bencall, PID: 5991 java.lang.RuntimeException: Unable to start ...

android java xml error api

2 years ago

1 answers
91 views
0

Unable to create android file and folder.

File plan_File = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + create_file_title.getText().toString() + .txt);FileOutputStream fs;try { fs = openFileOutput(...

android file directory mkdir

2 years ago

1 answers
52 views
0

If you run Android, it keeps shutting down android.widget.Button cannot be cast to android.view.ViewGroup

It keeps shutting down... Why is this happening?You can't change the code againㅠ

android error java xml android-studio

2 years ago

1 answers
124 views
0

Android will be forced to shut down. NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference

When you run Android and log in, the map screen appears, and it is forced to end immediately after the screen appears. Can anyone tell me what the problem is because I don't know how to watch logcat?0...

android java xml android-studio nullpointerexception

2 years ago

2 answers
80 views
0

Ask for dynamic generation code using Android Linear Layout for statement

I'm making a program that makes a 365-day button to make a year's calendar, but as I set Layout every week, the coding gets too long if I do it, so I tried to use an arrangement using a for statement,...

android loops for calendar

2 years ago

1 answers
25 views
0

Questions about Android activity (startActivity, int, task)

When you have an Android activity,There should be only one A, B, and C will be stacked several times.A -> C -> C -> B -> C -> C -> B -> C when called in order I'd like to stay AC ...

android

2 years ago

1 answers
97 views
0

Android studio is forced to shut down 'java.lang.Stringjava.lang.Object.toString()' on a null object reference

When you press a button on a map map, an error occurs.I used the threadI don't know which part is wrong.I'm just copying what someone else didPlease help me because I am not good at interpreting logca...

android android-studio java error nullpointerexception

2 years ago

1 answers
25 views
0

The text I received from the Android layout is not going in. Is there any other way?

Input() function public void input() { editText_pay = (EditText) findViewById(R.id.editText_pay); editText_overworkpay = (EditText) findViewById(R.id.editText_overworkpay); editText_normworktime = (Ed...

android

2 years ago

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