[Android]保存logcat到文件中

最新推荐文章于 2024-09-13 07:37:26 发布

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本文介绍如何在Android应用中通过代码读取系统日志，并将日志信息保存到本地文件中，包括实现步骤、权限需求及示例代码。

here is an example of reading the logs: http://www.helloandroid.com/tutorials/reading-logs-programatically
you could change this to write to a file instead of to a textview.
need permission in manifest:
<uses-permission android:name="android.permission.READ_LOGS" />
Code:
public class LogTest extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    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) {
    }
  }
}