从市场以外的网站以编程方式在 android 设备上下载、安装和删除 .apk 文件 [英] Download, Installing and Delete .apk file on android device programmatically from a website other than marketplace

问题描述

我开发了一些安卓游戏并创建了 .apk 文件..
我已将这些 .apk 文件放在我的网站上(例如:http://www.sush19.com/androidApp/apk/myGame1.apk)当这个 url 从另一个应用程序 onClick() 事件访问时，是否可以直接安装这个游戏.

I've developed some android games and created .apk file..
I've put these .apk files on my website (say: http://www.sush19.com/androidApp/apk/myGame1.apk) Is it possible to directly install this game when this url visit from another app onClick() event.

我不希望用户下载 .apk 到他们的 sdcard 然后手动安装，事实上游戏应该直接安装到设备上.

I don't want user to download .apk fine to their sdcard and then install manually, infact the game should be installed directly to the device.

我正在我的另一个应用程序 onClick() 事件中尝试以下代码:

I was trying below code in my another app onClick() event:

Intent goToMarket = new Intent(Intent.ACTION_VIEW).setData(Uri.parse("http://www.sush19.com/androidApp/apk/myGame1.apk"));
startActivity(goToMarket);

我知道上面的代码不正确..但是任何人都可以对此发表评论..

I know the above code is not correct.. but can anyone comment on this..

推荐答案

下面的代码，允许用户在Android设备上下载、安装和删除.apk文件.我创建了一个 Android 应用程序(比如 App1)，它可以在 SD 卡上下载其他 Android 应用程序.在App1中点击按钮，它将从我自己的网站后台下载.apk文件，下载完成后会提示用户安装最近从App1下载的应用程序，安装完成后下载的.apk文件将从中删除SD 卡.

The below code, allow user to Download, Install and Delete .apk file on Android device. I've created an Android app (Say App1), which downloads other android apps on SD card. On Button click in App1, it will download the .apk file from my own website on Background, on download complete it will prompt user to install the app downloaded recently from App1 and after the installation is completed the downloaded .apk file will be deleted from the SD card.

在我的 App1 主要活动中:我已包含按钮
就我而言，我从 App1 启动其他应用程序，如果设备上未安装，我将从我的网站下载并安装它.
按钮点击事件方法

In my App1 main activity: I've included button
In my case I'm launching my other applications from App1, if not installed on the device, I'm downloading it from my website and installing it.
button click event method

public OnClickListener ButtonClicked = new OnClickListener() {
        public void onClick(View v) {
            Intent i;
            PackageManager manager = getPackageManager();
            try {
                i = manager.getLaunchIntentForPackage("com.mycompany.mygame");
                if (i == null)
                    throw new PackageManager.NameNotFoundException();
                i.addCategory(Intent.CATEGORY_LAUNCHER);
                startActivity(i);
            } catch (PackageManager.NameNotFoundException e) {
                InstallAPK downloadAndInstall = new InstallAPK();
                progress.setCancelable(false);
                progress.setMessage("Downloading...");
                downloadAndInstall.setContext(getApplicationContext(), progress);
                downloadAndInstall.execute("http://xyz/android/gamedownload.aspx?name=mygame.apk");
            }
        }
    };

InstallAPK 类

public class InstallAPK extends AsyncTask<String,Void,Void> {

    ProgressDialog progressDialog;
    int status = 0;

    private Context context;
    public void setContext(Context context, ProgressDialog progress){
        this.context = context;
        this.progressDialog = progress;
    }

    public void onPreExecute() {
        progressDialog.show();
    }

    @Override
    protected Void doInBackground(String... arg0) {
        try {
            URL url = new URL(arg0[0]);
            HttpURLConnection c = (HttpURLConnection) url.openConnection();
            c.setRequestMethod("GET");
            c.setDoOutput(true);
            c.connect();

            File sdcard = Environment.getExternalStorageDirectory();
            File myDir = new File(sdcard,"Android/data/com.mycompany.android.games/temp");
            myDir.mkdirs();
            File outputFile = new File(myDir, "temp.apk");
            if(outputFile.exists()){
                outputFile.delete();
            }
            FileOutputStream fos = new FileOutputStream(outputFile);

            InputStream is = c.getInputStream();

            byte[] buffer = new byte[1024];
            int len1 = 0;
            while ((len1 = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len1);
            }
            fos.flush();
            fos.close();
            is.close();

            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setDataAndType(Uri.fromFile(new File(sdcard,"Android/data/com.mycompany.android.games/temp/temp.apk")), "application/vnd.android.package-archive");
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // without this flag android returned a intent error!
            context.startActivity(intent);


        } catch (FileNotFoundException fnfe) {
            status = 1;
            Log.e("File", "FileNotFoundException! " + fnfe);
        }

        catch(Exception e)
        {
            Log.e("UpdateAPP", "Exception " + e);
        }
        return null;
    }

    public void onPostExecute(Void unused) {
        progressDialog.dismiss();
        if(status == 1)
            Toast.makeText(context,"Game Not Available",Toast.LENGTH_LONG).show();
    }
}

要从 SD 卡中删除下载的文件，我使用了 BroadcastReceiver 类

To delete downloaded file from SD card I've used BroadcastReceiver class

@Override
    public void onReceive(Context context, Intent intent) { 

        try
        {
            String packageName = intent.getData().toString() + getApplicationName(context, intent.getData().toString(), PackageManager.GET_UNINSTALLED_PACKAGES);

            if(intent.getAction().equals("android.intent.action.PACKAGE_ADDED")){
                File sdcard = Environment.getExternalStorageDirectory();
                File file = new File(sdcard,"Android/data/com.mycompany.android.games/temp/temp.apk");
                file.delete();
            }
        }catch(Exception e){Toast.makeText(context, "onReceive()", Toast.LENGTH_LONG).show();}
    }

不要忘记在 AndroidManifest.xml 中包含以下权限

Don't forget to include following permission in the 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.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

在我的网站中，我创建了两个 .aspx 页面并将其放置在 Android 文件夹中，并将 .apk 文件放置在 Visual Studio 中的 Android/Games 文件夹中
第一页:marketplace.aspx.cs

In my website, I create two .aspx pages and placed it inside Android folder and .apk files inside Android/Games folder in Visual Studio
First page: marketplace.aspx.cs

public partial class marketplace : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            DirectoryInfo directory = new DirectoryInfo(Server.MapPath("~/Android/Games"));
            int counter = 0;
            foreach (FileInfo file in directory.GetFiles())
            {
                HyperLink link = new HyperLink();
                link.ID = "Link" + counter++;
                link.Text = file.Name;
                link.NavigateUrl = "gamedownload.aspx?name=" + file.Name;

                Page.Controls.Add(link);
                Page.Controls.Add(new LiteralControl("<br/>"));

            }
        }

        protected void Click(object sender, EventArgs e)
        {
            Response.Redirect("gamedownload.aspx");
        }
    }

第二页:gamedownload.aspx.cs

Second Page: gamedownload.aspx.cs

public partial class gamedownload : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string fileName = Request.QueryString["name"].ToString();
            Response.ContentType = "application/octet-stream";
            Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);
            Response.TransmitFile(Server.MapPath("~/Android/Games/" + fileName));
            Response.End();
        }
    }

我在 Web.config 文件中添加了以下代码

I added following code in Web.config file

<system.webServer>
    <staticContent>
      <mimeMap fileExtension=".apk"
               mimeType="application/vnd.android.package-archive" />
    </staticContent>
  </system.webServer>

我希望这些信息对某些人有所帮助.

I hope this information will be help full for some people.

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