将logcat数据保存到内部存储器

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

try {
    Process process = Runtime.getRuntime().exec("logcat -d"); // -d参数表示仅获取当前日志
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));

    StringBuilder log = new StringBuilder();
    String line;
    while ((line = bufferedReader.readLine()) != null) {
        log.append(line);
        log.append("\n");
    }

    // 将log保存到文件中
    File file = new File(getFilesDir(), "logcat.txt");
    FileWriter writer = new FileWriter(file);
    writer.write(log.toString());
    writer.flush();
    writer.close();
} catch (IOException e) {
    e.printStackTrace();
}

File file = new File(getFilesDir(), "logcat.txt");
try {
    BufferedReader reader = new BufferedReader(new FileReader(file));
    String line;
    while ((line = reader.readLine()) != null) {
        // 处理每一行logcat数据
    }
    reader.close();
} catch (IOException e) {
    e.printStackTrace();
}