如何读取程序的Log信息

http://www.androidsnippets.com/how-to-capture-application-log

如果需要程序实现这个功能，需要在Manifest中添加Permission:

android.permission.READ_LOGS

应用Runtime.getRuntime().exec(  parameters )启动Logcat，并返回一个Process对象，然后通过BufferedReader捕捉进程的数据流。

源代码：

01 Process mLogcatProc = null;
02 BufferedReader reader = null;
03 try
04 {
05         mLogcatProc = Runtime.getRuntime().exec(new String[]
06                 {"logcat", "-d", "AndroidRuntime:E [Your Log Tag Here]:V *:S" });
07
08         reader = new BufferedReader(new InputStreamReader
09 (mLogcatProc.getInputStream()));
10
11         String line;
12         final StringBuilder log = new StringBuilder();
13         String separator = System.getProperty("line.separator");
14
15         while ((line = reader.readLine()) != null)
16         {
17                 log.append(line);
18                 log.append(separator);
19         }
20
21         // do whatever you want with the log.  I'd recommend using <A title=Intents href="http://developer.android.com/reference/android/content/Intent.html" target=_blank>Intents</A> to create an email
22 }
23
24 catch (IOException e)
25 {
26         ...
27 }
28
29 finally
30 {
31         if (reader != null)
32                 try
33                 {
34                         reader.close();
35                 }
36                 catch (IOException e)
37                 {
38                         ...
39                 }
40
41 }