重定向到Google Play商店（如果从浏览器启动android应用时未安装应用）

Question

I am launching android app from browser. I write the below code in manifest for launching app from browser & launching successfully,

<intent-filter>
<data
    android:scheme="myapp"
    android:host="myhostname" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />

My requirement is like I have to redirect to google play store, if the app is not installed.

How can I achieve that?

Answer 1

Adding the intent filter is good, but here's what I do to open an intent on an android device when the user agent matches as such. I'm specifically using rails but you can do it however you like in your server code (such as in the form of a link):

resources :users, path: '/', only: [], constraints: { :id => /\d+/ } do
  constraints :user_agent => /Android/i do
    #https://developers.google.com/chrome/mobile/docs/intents
    get '/:some_key' => redirect {|params, request| "intent://my-domain.com/#{params[:user_id]}/#{params[:some_key}#Intent;package=com.mypackage;scheme=myscheme;end;"}
  end
end

In your intent filter use the custom scheme:

<data android:scheme="myscheme"/>
<data android:host="my-domain.com"/>

See https://developers.google.com/chrome/mobile/docs/intents as it gives this example:

<a href="intent://scan/#Intent;scheme=zxing;package=com.google.zxing.client.android;end"> Take a QR code </a>

Note: By giving the qualified package name this way, Android will direct the user to the play store for the app matching that package key if it is not installed.

Answer 2

http://developers.mobileapptracking.com/deeplinking-mobile-app-website/

Check this - they suggest one nice way.

In your app - you need to register to :// and then try to open that URL from JS on browser. If app is present - it navigates away. If app is not present - next continue to open the google play link.

Hope this serves the purpose.

(Note: another way is intent:// - but this has one issue - When you open Google Play - you cannot pass referrer to find out where the click has come from). It that is not your requirement - then intent:// is definitely the best way - I tried it on Android browser, Chrome, Firefox, Opera on Android 4.4 and works fine on all.

Answer 3

If you need to redirect the link to play store if app is not installed then try firebase dynamic link. Try this url. https://firebase.google.com/docs/dynamic-links

Answer 4

I would use the URL https://play.google.com/store/apps/details?id=com.anil.myapp on the webpage. This would open the Play Store on the device, which will let the user open the app if it is installed, or install it if it's not. This will work regardless of any intent filtering in the manifest.

If you'd like to get the intent filtering working with this approach, I believe you could try

<data android:scheme="https" android:host="play.google.com" android:pathPrefix="/store/apps/details?id=com.anil.myapp"/>

but I'm not sure if that will match.

Answer 5

Do like this.

   boolean installed =appinstalledOrNot("package name"); 
   if(installed) {
   //do your stuff
   }

   else
   {
   Intent intent = new Intent(Intent.ACTION_VIEW);
   intent.setData(Uri.parse("market://details?id=package name"));
   startActivity(intent);
   }

 private boolean appinstalledOrNot(String uri) {
    PackageManager pm = getPackageManager();
    boolean app_installed = false;
    try {
        pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
        app_installed = true;
    }
    catch (PackageManager.NameNotFoundException e) {
        app_installed = false;
    }
    return app_installed ;
}

}