SupportMapFragment issue with MvvmCross

Question

I'm trying to add Google Maps v2 to an Mvx project by combining the Monodroid MapsAndLocationDemo_v2 with the N=26 Fraggle demo from NPlus1DaysOfMvvmCross.

I have added Google Play services to the Maps demo and am successfully displaying a map using:

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    class="com.google.android.gms.maps.SupportMapFragment" />

With the Fraggle demo, the same fragment causes an Android.Views.InflateException error.

I have followed the same steps to add Google Play services to both projects, and am using the same AndroidManifest.xml file in both projects

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.demo.app" android:installLocation="auto" android:versionCode="1" android:versionName="1">
  <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" />
  <application android:label="Demo"></application>
  <uses-feature android:glEsVersion="0x00020000" android:required="true" />
  <uses-permission android:name="android.permission.INTERNET" />
  <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
  <uses-permission android:name="com.demo.app.permission.MAPS_RECEIVE" />
  <permission android:name="com.demo.app.permission.MAPS_RECEIVE" android:protectionLevel="signature" />
  <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AAAAAAAAAAAAAAAAA-xxxxxxxxxxxxxxxxxxxxxx" />
</manifest>

Other than adding the fragment and updating the manifest, there are no changes to the Fraggle demo code. The working view from the Maps demo is

namespace SimpleMapDemo
{
    using Android.App;
    using Android.OS;
    using Android.Support.V4.App;

    [Activity(Label = "@string/basic_map")]
    public class BasicDemoActivity : FragmentActivity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            SetContentView(Resource.Layout.BasicDemo);
        }
    }
}

and the view from the Mvx version is:

using Android.App;
using Android.OS;
using Cirrious.MvvmCross.Droid.Fragging;
using Rock.Core.ViewModels;

namespace Rock.Droid.Views
{
    [Activity(Label = "View for FirstViewModel")]
    public class FirstView : MvxFragmentActivity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            SetContentView(Resource.Layout.FirstView);
        }
    }
}

I've also tried referencing the Google Play services dll from the working demo, and have the same results.

have you added the fraggle demo app's details to the maps api key in your api console? — tony m
I did it the other way round, changed the fraggle app details to match the api key, but that should have the same effect. — Neil

Neil Neil · Accepted Answer · 2013-07-05T09:05:09

Ah. It was a mistake in the AndroidManifest.xml file. The Maps API Key needs to be inside the application node. If it's not there, it causes an exception.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.demo.app" android:installLocation="auto" android:versionCode="1" android:versionName="1">
  <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" />
  <application android:label="Demo">
    <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AAAAAAAAAAAAAAAAA-xxxxxxxxxxxxxxxxxxxxxx" />
  </application>
  <uses-feature android:glEsVersion="0x00020000" android:required="true" />
  <uses-permission android:name="android.permission.INTERNET" />
  <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
  <uses-permission android:name="com.demo.app.permission.MAPS_RECEIVE" />
  <permission android:name="com.demo.app.permission.MAPS_RECEIVE" android:protectionLevel="signature" />
</manifest>

SupportMapFragment issue with MvvmCross

1 Answers