xamarin.android - How to make Zebra Xing (Zxing) as subview in Xamarin Android -


in xamarin.android app, want use zxing scan barcode. want display scanner in view of activity.

code:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:weightsum="5">     <button         android:text="scan default overlay"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:id="@+id/buttonscandefaultview"         android:layout_weight="1" />   <linearlayout         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:id="@+id/scanview"         android:layout_weight="2" /> </linearlayout> 
protected override void oncreate (bundle bundle) {     base.oncreate (bundle);     scannerfragment = new zxingscannerfragment ();     scannerfragment.customoverlayview = customoverlayview;     scannerfragment.usecustomoverlayview = usecustomoverlayview;     scannerfragment.toptext = toptext;     scannerfragment.bottomtext = bottomtext;     this.fragmentmanager.begintransaction ()                 .replace (resource.id.scanview, scannerfragment, "zxingfragment")                 .commit (); }

i'm getting error stating cannot convert support.v4.fragment android.app.fragment.

can advise i'm doing wrong , how should approach scanner view (of zxing) in layout of current activity.

zxingscannerfragment derives android.support.v4.app.fragment while activity.fragmentmanager expects fragments derived android.app.fragment.

now, how fix that:

  1. inherit activity activity works android.support.v4. easiest use android.support.v4.app.fragmentactivity package xamarin.android.support.v4 installed zxing.net.mobile package dependency.

  2. when have correct activity, can use this.supportfragmentmanager instead of this.fragmentmanager work support.v4-based fragments.

so, layout have good. code should updated like:

using android.app; using android.widget; using android.os; using zxing.mobile; using android.support.v4.app;  namespace zxingsample {     [activity(label = "zxing sample", mainlauncher = true, icon = "@mipmap/icon")]     public class mainactivity : fragmentactivity     {         int count = 1;          protected override void oncreate(bundle savedinstancestate)         {             base.oncreate(savedinstancestate);             setcontentview(resource.layout.main);             var scannerfragment = new zxingscannerfragment();             scannerfragment.usecustomoverlayview = false;             scannerfragment.toptext = "scan code";             scannerfragment.bottomtext = "then proceed";             this.supportfragmentmanager.begintransaction()                         .replace(resource.id.scanview, scannerfragment, "zxingfragment")                         .commit();         }     } }

launching app, see scanner:

sample app


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