我必須將數據文本存儲到SD卡。在android中存儲數據文本到SD卡?
這是我的代碼:
try {
File myFile = new File(Environment.getExternalStorageDirectory()+"/mnt/sdcard/mysdfile.txt");
myFile.createNewFile();
FileOutputStream fOut = new FileOutputStream(myFile);
OutputStreamWriter myOutWriter =
new OutputStreamWriter(fOut);
myOutWriter.append(txtData.getText());
myOutWriter.close();
fOut.close();
Toast.makeText(getBaseContext(),
"Done writing SD 'mysdfile.txt'",
Toast.LENGTH_SHORT).show();
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(),
Toast.LENGTH_SHORT).show();
}
在AndroidMainfest我有:
<uses-permission android:name="android.permisson.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
我不明白爲什麼它不工作?
Toast報錯:Permission denied?
請幫幫我。
當你嘗試時會發生什麼? – 2012-04-01 08:15:14
嘗試更改爲: 'File myFile = new File(「/ mnt/sdcard/mysdfile.txt」);' – idiottiger 2012-04-01 08:21:49
[將文件寫入SD卡]可能的副本(http://stackoverflow.com/questions/2455102 /寫一個文件到SD卡) – jww 2015-02-18 08:27:19