无法将文件保存到SD卡 [英] Can't save a file to SD card

问题描述

代码：

Code:

String FILENAME = "settings";
String string = "hello world!";
File sdDir = new File(Environment.getExternalStorageDirectory().getPath());
File testDir = new File(sdDir.getAbsolutePath() + "/mobile_recont");
testDir.mkdir();

FILENAME = testDir + "/"+ FILENAME;
try {
    FileOutputStream fos = new FileOutputStream(FILENAME);
    fos.write(string.getBytes());
    fos.flush();
    fos.close();
    } catch (IOException e) {
Log.e("Controller", e.getMessage() + e.getLocalizedMessage() + e.getCause());
                    }

我也在清单中写道：

I also wrote in manifest:

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

但得到例外：

But get exception:

java.io.FileNotFoundException: /mnt/sdcard/mobile_recont/settings: open failed: EACCES (Permission denied)

和

and

Environment.getExternalStorageState() = "removed" 

为什么？ - SD卡在模拟器中正确设置。

请帮助。

Why? - SD card is correctly setted in emulator.
Please help.

推荐答案

尝试在保存文件之前创建文件夹： http://stackoverflow.com/questions/4776426/how-to-create-a-directory -in-android [ ^ ]

Try creating the folders before saving files in them : http://stackoverflow.com/questions/4776426/how-to-create-a-directory-in-android[^]

SD卡侧面有一个写锁定滑块，距触点90度。



确保您的SD卡已启用写入。

SD cards have a "write lock" slider on the side, 90 degrees from the contacts.

Make sure that your SD card is write enabled.

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