android - 从类中收集所有 Log.d 并将其保存到 SDCard

Question

嘿，在 Android 中是否可以从一个类中收集所有 Log.d 并继续追加并将其保存到 SDCard 中？

例如:

Class Android {

    private final static String TAG = "hello";

    public void abcd(){
    Log.d(TAG, "it went into abcd method");
    }

    public void efgh(){
    Log.d(TAG, "it went into efgh method");
    }

       /*Here collect all above LOGS and write to file in SDCard*/

}

Answer 1

您可以使用logcat 命令获取所有日志。你可以尝试这样的事情:

public static void printLog(Context context){
    String filename = context.getExternalFilesDir(null).getPath() + File.separator + "my_app.log";
    String command = "logcat -d *:V";

    Log.d(TAG, "command: " + command);

    try{
        Process process = Runtime.getRuntime().exec(command);

        BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line = null;
        try{
            File file = new File(filename);
            file.createNewFile();
            FileWriter writer = new FileWriter(file);
            while((line = in.readLine()) != null){
                writer.write(line + "\n");
            }
            writer.flush();
            writer.close();
        }
        catch(IOException e){
            e.printStackTrace();
        }
    }
    catch(IOException e){
        e.printStackTrace();
    }
}

您可以在此处获得有关 logcat 的更多信息:http://developer.android.com/tools/help/logcat.html