Android存储Log日志到SD卡_andriod日志转存储-优快云博客

本文链接：https://blog.youkuaiyun.com/csdndouniwan/article/details/78863208

本文介绍了一种在Android环境中实现日志文件读写的简单方法，包括创建文件、写入日志及读取日志的具体步骤，并强调了必要的权限设置。

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/**
 *读取文件
 */
private String read() {
    String path = "/data/data/你得包名/logs/";
    String name = "x.txt";
    BufferedReader reader = null;
    try {
        FileInputStream f = new FileInputStream(path + name);
        reader = new BufferedReader(new InputStreamReader(f));
        String line;
        String lines = "";
        while ((line = reader.readLine()) != null) {
            line += "\r\n";
            lines = lines + line;
        }
        return lines;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "...........";
}

//检测路径是否存在
private void isHavePath(String path) {
    File file = new File(path);
    if (!file.exists()) {
        file.mkdirs();
    }
}

//获取 log 日志的线程,保存成 text
@Override
public void run() {

    String path = "/data/data/你程序的包名/logse/";
    String name = "x.txt";
    try {
        //获取logcat日志信息
        isHavePath(path);
        File file = new File(path + name);
        String str = "hello world";
        FileWriter fw = new FileWriter(file + "as.txt");
        fw.flush();
        fw.write(str);
        fw.close();


    } catch (Exception e) {
        e.printStackTrace();
    }
}

不要忘记添加权限<uses-permission android:name="android.permission.READ_LOGS"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
大家加油