Google Map Api v2 With Location Error Android

Question

Hee guys i a code for the android now the only thing i have inside of it is a google map and a piece of code that will check your location and mark it on the map, but i tried a few different codes and not any one of them workend.. i only get a error on my mobile that says your application stopped working. (i run my app on my mobile not on a emulator)

This is my Main Xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:background="@drawable/dark_wood"
    tools:context=".Main" 
    >

    <Button
        android:id="@+id/bVastLocatie"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:paddingBottom="20dp"
        android:text="Butt" 
        android:textColor="#FFFFFF"
        android:onClick="onClick_bVastLocatie"/>

    <fragment
        android:id="@+id/map"
           android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/bVastLocatie" />

</RelativeLayout>

This is my class code:

package com.*myappname*.googleMaps;

import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.app.Activity;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.view.View;

public class Main extends FragmentActivity {


    private GoogleMap googleMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        setUpMapIfNeeded();

    }

    private void setUpMapIfNeeded() {
        // TODO Auto-generated method stub
        if(googleMap == null){

            googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

            if(googleMap != null){
                setUpMap();
            }
        }

    }

    private void setUpMap() {
        //Enable MyLocation Layer of Google Map
        googleMap.setMyLocationEnabled(true);

        // Get LocationManager object from System service LOCATION_SERVICE
        LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

        //Create a criteria object to retrieve provider
        Criteria criteria = new Criteria();

        // Get the name of the best provider
        String provider = locationManager.getBestProvider(criteria, true);

        //Get Current Location
        Location myLocation = locationManager.getLastKnownLocation(provider);

        //set map type
        googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);

        //Get latitude of the current location
        double latitude = myLocation.getLatitude();

        //Get longitude of the current location
        double longitude = myLocation.getLongitude();

        //Create a LatLng object for the current location
        LatLng latLng = new LatLng(latitude, longitude);

        //Show the current location in Google Map
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));

        //Zoom in the Google Map
        googleMap.animateCamera(CameraUpdateFactory.zoomTo(20));
        googleMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title("You are Here!"));

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}

this is my manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.*myappname*.googleMaps"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="17" />

    <permission
        android:name="com.*myappname*.googleMaps.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="com.*myappname*.googleMaps.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCES_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCES_FINE_LOCATION" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <application
        android:allowBackup="true"
        android:debuggable="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="*my API KEY*" />

        <!--  Start Scherm -->
        <activity
            android:name="com.*myappname*.googleMaps.StartScherm"
            android:label="@string/app_name"
             >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- Map -->
        <activity
            android:name="com.*myappname*.googleMaps.Main"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="com.*myappname*.googleMaps.MAPS" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>

</manifest>

And this is my error log

05-26 21:09:10.009: E/AndroidRuntime(5394): FATAL EXCEPTION: main
05-26 21:09:10.009: E/AndroidRuntime(5394): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.*my app name*.googleMaps/com.*my app name*.googleMaps.Main}: java.lang.IllegalArgumentException: invalid provider: null
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2246)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2296)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.ActivityThread.access$700(ActivityThread.java:151)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1281)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.os.Looper.loop(Looper.java:137)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.ActivityThread.main(ActivityThread.java:5293)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at java.lang.reflect.Method.invokeNative(Native Method)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at java.lang.reflect.Method.invoke(Method.java:511)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at dalvik.system.NativeStart.main(Native Method)
05-26 21:09:10.009: E/AndroidRuntime(5394): Caused by: java.lang.IllegalArgumentException: invalid provider: null
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.location.LocationManager.checkProvider(LocationManager.java:1779)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.location.LocationManager.getLastKnownLocation(LocationManager.java:1144)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at com.berendscheffers.googleMaps.Main.setUpMap(Main.java:62)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at com.berendscheffers.googleMaps.Main.setUpMapIfNeeded(Main.java:42)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at com.berendscheffers.googleMaps.Main.onCreate(Main.java:31)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.Activity.performCreate(Activity.java:5250)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
05-26 21:09:10.009: E/AndroidRuntime(5394):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2210)
05-26 21:09:10.009: E/AndroidRuntime(5394):     ... 11 more

enter code here

I have no idea what goes wrong, i hope you guys can help me out, Cheers!

Answer 1

I got mine solved by adding class="com.google.android.gms.maps.SupportMapFragment" to my fragment attributes. So your fragment should look like this

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

I hope it helps.

Answer 2

Your stacktrace: Caused by: java.lang.IllegalArgumentException: invalid provider: null

You dont have a provider, which means, you can´t get a location!

There is a new way of getting a location... Reto Meier showed it on Google I/O 2013. Check this out in 15:55 minutes: http://www.youtube.com/watch?v=GcNNx2zdXN4

Answer 3

Caused by: java.lang.ClassCastException: com.google.android.gms.maps.MapFragment cannot be cast to android.support.v4.app.Fragment

You are trying to use MapFragment in xml and cast it to SupportMapFragment in code. This fails even eariler, because you are using FragmentManager and FragmentActivity from support library.