我试图写日志在我的应用程序中,我在一些Android设备中出现下面的异常,/mnt/sdcard/Log/log.txt: open failed: ACCES (Permission denied)
。我也使用了WRITE_EXTERNAL_STORAGE
权限,但是我收到了这个错误。Android:SD卡权限被拒绝
File sdCard = Environment.getExternalStorageDirectory();
File dir = new File(sdCard.getAbsolutePath() + logDir);
dir.mkdirs();
File file = new File(dir, logFileName);
PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(file, true), 8 * 1024));
writer.println(message);
writer.flush();
writer.close();
请帮助我,在此先感谢。
不要硬编码SD卡,你必须使用'Environment.getExternalStorageState()。equals(Environment.MEDIA_MOUNTED)''会让你知道内存是否被加载。然后使用'Environment.getExternalStorageDirectory()。getAbsolutePath()' – Skynet
你可以发布你的代码吗? –
File sdCard = Environment.getExternalStorageDirectory(); File dir = new File(sdCard.getAbsolutePath()+ logDir); dir.mkdirs(); File file = new File(dir,logFileName); PrintWriter writer = new PrintWriter(new BufferedWriter( \t \t \t new FileWriter(file,true),8 * 1024)); writer.println(message); writer.flush(); writer.close(); – Nijan