我想在安卓设备的内部存储中创建新文件,但是我遇到了“没有这样的文件或目录”的异常。
这是我的代码:
String APP_PATH_SD_CARD = "/XYZ/";
String APP_THUMBNAIL_PATH_SD_CARD = "Demodir";
String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath() + APP_PATH_SD_CARD + APP_THUMBNAIL_PATH_SD_CARD;
File myFile,dir;
try {
dir = new File(fullPath);
if (!dir.exists()) {
dir.mkdir();
}
myFile = new File(fullPath, "Vitals.txt");
if (myFile.exists()) {
myFile.delete();
myFile.createNewFile();
} else {
myFile.createNewFile();
}
Toast.makeText(getBaseContext(),"File 'Vitals.txt' Created",Toast.LENGTH_SHORT).show();
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(),Toast.LENGTH_SHORT).show();
}
AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" />