Android : App is opened in browser when coming bac

Question

I have integrated Twitter into android app. User is displayed login screen for Twitter in browser. When user is done with login, flow should return back to app.

So here actually after login, app's screen is displayed. But when I put all apps in background by pressing home button and then check all opened apps (by long pressing home button) it shows my app and browser as shown below. Browser app has my app screen.i.e. flow is not returned back to my app, rather app is opened in browser.

This is causing issues because when Twitter login is completed, I have to redirect user to another screen for certain reason. Here, user is redirected to other screen, but user is seeing app in browser. If he opens app(actual app, not browser) then he will see older screen and this is a strange behavior of app in user's perspective because he sees 2 different screen s at the same time.

Manifest with activity which should be called when coming back from Twitter login page :

<activity
    android:name="com.company.app.activities.MyActivity"
    android:screenOrientation="portrait"
    android:windowSoftInputMode="adjustPan" >
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />

        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />

        <data
            android:host="MyApp"
            android:scheme="app" />
    </intent-filter>
</activity>