java - 我无法将文件从资产复制到外部存储

Question

我正在制作一个 Android 应用程序，我想添加两个名为fsx.xml和的文件xplane.xml。这是我正在使用的代码，它运行完美，没有错误，但/planesim只是显示为空。请帮忙！

String planesimFolderName = "/planesim";
String fsxFile = "fsx.xml";
String xplaneFile = "xplane.xml";
String asset;
File assetDestination;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash);
    final File planesimFolder = new File(Environment.getExternalStorageDirectory() + planesimFolderName);
    final AssetManager assetManager = getAssets();
    for (int fileCount = 1; fileCount == 2; fileCount++) {
        if (fileCount == 1) {
            asset = fsxFile;
        } else if (fileCount == 2) {
            asset = xplaneFile;
        }
        assetDestination = new File(Environment.getExternalStorageDirectory() + planesimFolderName + "/" + asset);
        try {    
            InputStream in = assetManager.open(asset);
            FileOutputStream f = new FileOutputStream(assetDestination); 
            byte[] buffer = new byte[1024];
            int len1 = 0;
            while ((len1 = in.read(buffer)) > 0) {
            f.write(buffer, 0, len1);
            }
            f.close();
        } catch (Exception e) {
            Log.d("CopyFileFromAssetsToSD", e.getMessage());
        }
    }
}

感谢您的时间和帮助，zeokila。

Answer 1

这是你的错误：

for (int fileCount = 1; fileCount == 2; fileCount++)

这就像：

int fileCount = 1;
while(fileCount == 2) // never true...

for 循环从未执行（因为1 != 2），应该是：

for (int fileCount = 1; fileCount <= 2; fileCount++)