我正在尝试从资产文件夹将数据库复制到设备.此代码在模拟器和根设备上正常工作.我只是想知道是否在无人看管的设备上创建任何问题,否则它会相同.

private void StoreDatabase() {

File DbFile = new File(

"data/data/packagename/DBname.sqlite");

if (DbFile.exists()) {

System.out.println("file already exist ,No need to Create");

} else {

try {

DbFile.createNewFile();

System.out.println("File Created successfully");

InputStream is = this.getAssets().open("DBname.sqlite");

FileOutputStream fos = new FileOutputStream(DbFile);

byte[] buffer = new byte[1024];

int length = 0;

while ((length = is.read(buffer)) > 0) {

fos.write(buffer, 0, length);

}

System.out.println("File succesfully placed on sdcard");

// Close the streams

fos.flush();

fos.close();

is.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}