由网友(忘南忘北不忘你)分享简介：我想从编程资源文件夹保存apk文件在Android系统/应用程序文件夹中。I am trying to programatically save apk file from asset folder to system/app folder in android.我使用以下code。但错误显示只读文件系统。I a...

我想从编程资源文件夹保存apk文件在Android系统/应用程序文件夹中。

I am trying to programatically save apk file from asset folder to system/app folder in android.

我使用以下code。但错误显示只读文件系统。

I am using following code. but error is showing read only file system.

AssetManager assetManager = getAssets();
    InputStream in = null;
    OutputStream out = null;
    try {
        in = assetManager.open("youtuberanjit.apk");
        out = new FileOutputStream("/system/app/youtuberanjit.apk");
        byte[] buffer = new byte[1024];
        int read;
        while((read = in.read(buffer)) != -1){
            out.write(buffer, 0, read);
        }
        in.close();
        in = null;
        out.flush();
        out.close();
        out = null;
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setDataAndType(
                Uri.fromFile(new File("/system/app/youtuberanjit.apk")), "application/vnd.android.package-archive");
        startActivity(intent);
    }catch(Exception e){
        // deal with copying problem
        Log.e("ERRORR", ""+e.getMessage());
    } 

请帮助我。

感谢您！

推荐答案

您不能，除非你有权利这样做，写 /系统。您将需要一个根深蒂固的设备。

You cannot write to /system unless you have rights to do that. You will need a rooted device for that.

为什么你希望它是一个系统的应用程序，而不是一个正常的用户应用？

Why do you want it to be a system app, and not a 'normal' user app?