以编程方式捕获LogCat还是将其导出到文件? [英] Catch LogCat programmatically or export it to file?

问题描述

我想过滤一个logcat

I want to filter a logcat

String myCommand="logcat -f /sdcard/output.txt"; //no filters, keep writing  
myCommand="logcat -d -f /sdcard/output.txt"; //no filters, just a dump

对我来说工作正常，但对mytag却不行.

Working fine for me but not for mytag .

我也在使用代码:

String myCommand="logcat myTag *:S"; //the equivalent of logcat -s myTag  
myCommand="logcat -s myTag:D";   
myCommand="logcat -s myTag:E myTag2:D";  
myCommand="logcat myTag:E myTag2:D";  

但是它返回空文件.

推荐答案

File filename = new File(Environment.getExternalStorageDirectory()+"/mylog.log"); 
filename.createNewFile(); 
String cmd = "logcat -d -f"+filename.getAbsolutePath();
Runtime.getRuntime().exec(cmd);

对我有用.但是对于所有logcat输出，不是针对特殊标签(mytag).

it works for me. but for all logcat output not for special tag(mytag).

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