d tag

2228 questions


1 answers
143 views
0
Networking ip Questions

Currently, we are debugging with wireshark to create a function to upload code to cloud server.Post's signal seems to go into the cloud well, but I can't see the file, so I'm debugging it.What I felt ...

2 years ago

3 answers
32 views
0
Questions about rxAndroid groupBy

Hello, I'd like to ask you a question about rxAndroid. Hmm... I've been googling a lot, but I couldn't get the answer I wanted. ㅠ

2 years ago

1 answers
111 views
0
Does the findViewById function perform poorly on Android?

Does findViewById() perform poorly on Android?What algorithms are used internally to find Id?And I wonder why the performance is poorㅠ


1 answers
131 views
0
I'm uploading a shared article on the band app, and I'd like to attach an image.

The way to share writing in the band app was simply organized and could be applied immediately. I don't know what to do to attach an image. ㅠ

2 years ago

1 answers
128 views
0
[Linux] Can you deliver data to standard input/output redirection and standard errors?

You want to pass data to one program.Pipes allow data to be passed to the program's standard input.But what I want to do is write data in the standard error of the program.Is there a way to do this?(I...


2 answers
35 views
0
What are the disadvantages and overheads of a single-ton class?

Hello, I am a beginner developer who is developing games with C++ and DirectX.My question is that not only games but also various design patterns are applied when developing softwareAmong them, Single...

2 years ago

1 answers
146 views
0
I have a question for Android listview

@Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = inf.inflate(R.layout.li...

2 years ago

1 answers
50 views
0
This is an Android SQlite linkage problem! (Basic question)

In the process of linking Android SQlite, there was no grammar error, but it was forced to stop when I executed itI'm posting a question. Where's the problem?DBhelper classpackage com.example.myapplic...

2 years ago

1 answers
49 views
0
I have a question about implementing the Android bulletin board.

I'm a beginner who just developed it.I'm trying to implement an Android bulletin boardCurrently, CustomListView is implemented in xml.I'm asking you this question because I had a hard time.In order to...

2 years ago

1 answers
127 views
0
Why is there an exclamation point on the Ruby method?

Do you have this question mark? Are you right? I understand it's a question mark because you ask like thisWhat is the exclamation mark for?

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