安卓开发--错误日志保存到本地

1.问题：

有时候一些问题在自己电脑工作环境没法复现，需要收集查看错误日志，故把错误日志保存在用户手机本地；

2.代码：

    public static boolean string2File(String res, String filePath) {
        boolean flag = true;
        BufferedReader bufferedReader = null;
        BufferedWriter bufferedWriter = null;
        try {
            File distFile = new File(filePath);
            if (!distFile.getParentFile().exists()) distFile.getParentFile().mkdirs();
            bufferedReader = new BufferedReader(new StringReader(res));
            bufferedWriter = new BufferedWriter(new FileWriter(distFile,true));
            char buf[] = new char[1024];         //字符缓冲区
            int len;
            while ((len = bufferedReader.read(buf)) != -1) {
                bufferedWriter.write(buf, 0, len);
            }
            bufferedWriter.flush();
            bufferedReader.close();
            bufferedWriter.close();
        } catch (IOException e) {
            e.printStackTrace();
            flag = false;
            return flag;
        } finally {
            if (bufferedReader != null) {
                try {
                    bufferedReader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return flag;
    }

3.使用：

errorResult=e.toString()+"-----"+new Date().toString()+"\n";
string2File(errorResult,"/storage/emulated/0/myapp/errorlog.txt");

4.说明

上述代码中，这个是日志书写追加的，若需要书写覆盖，只需改动上面一行代码：

bufferedWriter = new BufferedWriter(new FileWriter(distFile,true));