Android Google API "Failed to load Map"

Question

I'm trying to display Google Map's map.

I followed this tutorial.

I Fixed some problems and the application runs, but I could not display the map.

Here what I did:

Created an API project on the google console
Created an ID
Activated "Google Maps Android API v2" service
Generated new Android key
Imported this key in manifest
Followed this video to install the library

And here my .java:

public class MainActivity extends FragmentActivity {

private static GoogleMap mMap = null;

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

    int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

    if(status == ConnectionResult.SUCCESS){
       if (mMap == null) {

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

          if (mMap != null) {
            UiSettings settings = mMap.getUiSettings();

            settings.setZoomControlsEnabled(true);
            settings.setCompassEnabled(true);
            settings.setRotateGesturesEnabled(true);
            settings.setTiltGesturesEnabled(true);
            settings.setScrollGesturesEnabled(true);
            settings.setZoomControlsEnabled(true);
            settings.setZoomGesturesEnabled(true);
            settings.setMyLocationButtonEnabled(false);

            mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
            mMap.setMyLocationEnabled(false);
            }
          }
       }
    }
    protected void onResume() {
        super.onResume();

        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

        if(status == ConnectionResult.SUCCESS){
           if (mMap == null) {

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

              if (mMap != null) {
                UiSettings settings = mMap.getUiSettings();

                settings.setZoomControlsEnabled(true);
                settings.setCompassEnabled(true);
                settings.setRotateGesturesEnabled(true);
                settings.setTiltGesturesEnabled(true);
                settings.setScrollGesturesEnabled(true);
                settings.setZoomControlsEnabled(true);
                settings.setZoomGesturesEnabled(true);
                settings.setMyLocationButtonEnabled(false);

                mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
                mMap.setMyLocationEnabled(false);
              }
          }
     }
 }

my activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <fragment
          android:id="@+id/map"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          class="com.google.android.gms.maps.SupportMapFragment" />


</LinearLayout>

And my manifest:

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

    <permission android:name="com.example.map.permission.MAPS_RECEIVE" android:protectionLevel="signature"/>
    <uses-permission android:name="com.example.map.permission.MAPS_RECEIVE"/>
    <uses-permission android:name="android.permission.INTERNET" />
    <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.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

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

    <uses-sdk
        android:minSdkVersion="12"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <uses-library android:name="com.google.android.maps" />
        <activity
            android:name="com.example.map.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="<MyKey>"/>

    </application>

</manifest>

`android:minSdkVersion="11"` make this 12 or use supportfragment — Raghunandan, Jul 09 '13 at 13:48

red_alert · Accepted Answer · 2013-07-09T14:44:51.267

1

Inside your application tag (in manifest) add:

<uses-library android:name="com.google.android.maps" />

Replace your fragment XML by this:

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

Let your activity extend FragmentActivity and onCreate and onResume call this code:

int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

if(status == ConnectionResult.SUCCESS){
   if (mMap == null) {

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

      if (mMap != null) {
        UiSettings settings = mMap.getUiSettings();

        settings.setZoomControlsEnabled(true);
        settings.setCompassEnabled(true);
        settings.setRotateGesturesEnabled(true);
        settings.setTiltGesturesEnabled(true);
        settings.setScrollGesturesEnabled(true);
        settings.setZoomControlsEnabled(true);
        settings.setZoomGesturesEnabled(true);
        settings.setMyLocationButtonEnabled(false);

        mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        mMap.setMyLocationEnabled(false);
      }
    }
}

Don't forget to declare your mMap variable like this:

private GoogleMap mMap;

edited Jul 09 '13 at 14:44

answered Jul 09 '13 at 13:59

red_alert

1,738
14
24

The fragment makes the application crash :/ – nsvir Jul 09 '13 at 14:08
Have you tried with my last edited code? The code I've posted works for me from Android 2.2.1 – red_alert Jul 09 '13 at 14:10
I tried the edited code and extend to FragmentActivity and it crashs. I tried whith extend Activity and it doesn't crash but it doesn't work. – nsvir Jul 09 '13 at 14:20
And the xml class makes crash too – nsvir Jul 09 '13 at 14:36
Btw i could not use SupportMapFragment cast with GoogleMap I only could use MapFragment cast Your mMap is a privation GoogleMap variable isn't it ? – nsvir Jul 09 '13 at 14:41
My variable mMap is declared like this: private GoogleMap mMap; I've forgoted to say that and maybe it's because of that it crashes... – red_alert Jul 09 '13 at 14:43
@nsvir take a look at this http://developer.android.com/about/dashboards/index.html. make your min sdk 12. no point in using 11. most of them have upgraded to 12 and above. – Raghunandan Jul 09 '13 at 14:48
Raghunandan: thanks. red_alert: Why SupportMapFragment cast show syntaxe error with GoogleMap variable ? Could it be the lib ? – nsvir Jul 09 '13 at 14:54
`Caused by: java.lang.ClassCastException: com.google.android.gms.maps.MapFragment cannot be cast to android.support.v4.app.Fragment` this is the cause. check your imports. also make sure yo u have change to support fragment `android:name="com.google.android.gms.maps.SupportMapFragment"` and you extend `FragmentActivity`. only api below 12. – Raghunandan Jul 09 '13 at 15:00
Yes the probleme is that the fragment's xml has a fragment. It does not work on my app but does it usualy work ? – nsvir Jul 09 '13 at 15:05
Ok I used FragmentActivity and android:name="<...>.SupportMapFragment" and the error is: java.lang.NullPointerException – nsvir Jul 09 '13 at 15:08
Ok I will try to found it. is it in logcat ? – nsvir Jul 09 '13 at 15:12
It says source not found. I see the stack in the top right corner but how can I past you ? – nsvir Jul 09 '13 at 15:23
Ok the error is this line: `mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();` – nsvir Jul 09 '13 at 15:30
I recommend you tu use SupportMapFragment instead MapFragment: mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap(); and fragment class (XML) class="com.google.android.gms.maps.SupportMapFragment" – red_alert Jul 09 '13 at 15:32
I really would like to but Eclipse says "Cannot cast from Fragment to SupportMapFragment" and it looks insane because R.id.map is a SupportMapFragment – nsvir Jul 09 '13 at 15:32
You can't use cast (MapFragment) and in XML declare the class SupportMapFragment in your fragment – red_alert Jul 09 '13 at 15:33
Yes I used the appropriate cast whith the appropriate id's class – nsvir Jul 09 '13 at 15:36
Ok got it. I was writting (SupportMapFragment) getFragmentMananager instead of getSupportFragmentManager. So now it works with an extends FragmentActivity and SupportMapFragment but the map is still not displayed – nsvir Jul 09 '13 at 15:39
I checked on debug and it goes in "nMap != null"'s conditional. – nsvir Jul 09 '13 at 15:49
You need also to call the code onResume (the code that you have in onCreate) – red_alert Jul 09 '13 at 15:51
Have you add inside your application tag (in manifest)? You need also to test this on a real phone and with internet turned on – red_alert Jul 09 '13 at 16:13
Right now the only diffrence to my code is that I declare other target versions: Try this and if it's still not working it could be the API KEY generated. – red_alert Jul 09 '13 at 16:33
Right now there are no errors but the map stil not loading, right? – red_alert Jul 09 '13 at 16:40
Yes it is. I have just generated a new Android key Simple API access and not working. keytstore file location is it important ? – nsvir Jul 09 '13 at 16:44
I have a warning for the minSdkVersion – nsvir Jul 09 '13 at 16:47
The warning is important if you want to allow compatibility below API Level 8 (Android 2.1 for example). But it is not the cause of the problem. You need realy to generate a valid key. See this post http://stackoverflow.com/questions/6305938/how-can-i-get-the-md5-fingerprint-from-javas-keytool-not-only-sha-1 – red_alert Jul 09 '13 at 16:59
Yea that what I did :/ Google asks for SHA1 and i gave him this exception: ";com.example" – nsvir Jul 09 '13 at 17:17
What hell I forgot to do :/ – nsvir Jul 09 '13 at 17:45
I get it! :D Look on the edit. Thank you very much for your help!! :) – nsvir Jul 10 '13 at 08:32

score 0 · Answer 2 · edited May 23 '17 at 11:51

0

Based on nsvir's earlier edit generating a new debug.keystore and a new key solves this problem.

The information in this article was helpful in understanding more about certificates.

edited May 23 '17 at 11:51

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answered Oct 24 '13 at 17:17

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Android Google API "Failed to load Map"

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