Read filtered log cat(Programmatically)?

Question

How can i read filtered log cat whereLevel is Warning?

That's all i know....

logcat = Runtime.getRuntime().exec(new String[]{"logcat", "-d"});

br = new BufferedReader(new InputStreamReader(logcat.getInputStream()),4*1024);
String line;
  final StringBuilder log = new StringBuilder();
  String separator = System.getProperty("line.separator"); 
    while ((line = br.readLine()) != null)
     {
       log.append(line);
         log.append(separator);
}

Heyy... Did u find any solution to this ?? – AbhishekB Aug 28 '12 at 12:07 — AbhishekB, Aug 28 '12 at 12:07

dudebrobro · Answer 1 · 2013-07-23T17:18:07.210

1

The -s flag lets you filter logcat output based on tag and level e,w,d,v so you can try modifying your line.

logcat = Runtime.getRuntime().exec(new String[]{"logcat", "-d","-s","*:w"});

edited Jul 23 '13 at 17:18

answered Jan 04 '13 at 14:50

dudebrobro

1,287
10
17

when i use -s, buffered reader ends after reading first two lines. – Taranfx Mar 22 '17 at 20:52

score 0 · Answer 2 · answered May 14 '12 at 06:44

0

if (line.contains("WARN")) {
// ...
}

answered May 14 '12 at 06:44

Vladimir Ivanov

42,730
18
77
103

score 0 · Answer 3 · answered Feb 07 '21 at 07:33

You can easily filter the line that you want to write like the code below:

  while ((line = bufferedReader.readLine()) != null) {
            if(line.contains("OkHttp")){
            log.append(line.substring(line.indexOf("OkHttp")));
            log.append('\n');}
            else{continue;}
        }

score -1 · Answer 4 · answered Feb 07 '12 at 11:11

 try {
                  Process process = Runtime.getRuntime().exec("logcat -d");
                  BufferedReader bufferedReader = new BufferedReader(
                  new InputStreamReader(process.getInputStream()));

                  StringBuilder log=new StringBuilder();
                  String line = "";
                  while ((line = bufferedReader.readLine()) != null) {
                    log.append(line);
                  }
                  TextView tv = (TextView)findViewById(R.id.textView1);
                  tv.setText(log.toString());
                } catch (IOException e) {
                }

Hope u get what u want....

is there any difference between codes written above?? I ASKED HOW TO FILTER THAT LOGCAT WHICH I AM READING? WHERE Level level = Level.WARNING; — Sunny, Feb 07 '12 at 11:21

Read filtered log cat(Programmatically)?

4 Answers4

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