Question

我有一个Android应用程序将文件复制到SD卡。

我的代码块如下所示：

private void CopyXmlFile2SdCard() {
    AssetManager asstMan = getAssets();
    try {
        InputStream in = null;
        OutputStream out = null;
        in = asstMan.open("platform.xml");
        File outFile = new File(getExternalFilesDir(null), "platform.xml");
        out = new FileOutputStream(outFile);
        CopyFile(in, out);
        in.close();
        in = null;
        out.flush();
        out.close();
        out = null;

    } catch (IOException e) {
        Log.e("Copy Error", "Failed to get asset file");
    }

}

我的复制方法是：

private void CopyFile(InputStream in, OutputStream out) throws IOException {
    byte[] buffer = new byte[1024];
    int read;
    while ((read = in.read(buffer)) != -1) {
        out.write(buffer, 0, read);
    }
}

我遇到错误“文件未找到”：

out = new FileOutputStream(outFile);

我也已经获得了复制到sdcard（write_external_storage）所需的权限。任何建议将不胜感激..

Answer 1

API LEVEL 8中提供了

getExternalFilesDir。使用Environment.getExternalStorageDirectory()进行更改。

编辑。

另外，请务必在设备/模拟器中添加SD卡

将文件复制到SD卡

1 个答案: