Failed to load map. Error contacting Google server

Question

I search all days and I can't find the answer...

everything is ready but google map still can't show on fragment with tab

I check that I already turn on google map android v2 and right API_KEY

I have no idea what happened!

MainActivity.java:

public class MainActivity extends FragmentActivity implements
        ActionBar.TabListener {

    SectionsPagerAdapter mSectionsPagerAdapter;

    ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        String titles[] = { this.getString(R.string.title_around),
                this.getString(R.string.title_map),
                this.getString(R.string.title_favorite),
                this.getString(R.string.title_achievement), };

        final ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        mSectionsPagerAdapter = new SectionsPagerAdapter(
                getSupportFragmentManager());

        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);
        mViewPager
                .setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
                    @Override
                    public void onPageSelected(int position) {
                        actionBar.setSelectedNavigationItem(position);
                    }
                });

        for (int i = 0; i < titles.length; i++) {
            actionBar.addTab(actionBar.newTab().setText(titles[i])
                    .setTabListener(this));
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void onTabSelected(Tab tab, FragmentTransaction fragmentTransaction) {
        mViewPager.setCurrentItem(tab.getPosition());
    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab,
            FragmentTransaction fragmentTransaction) {
    }

    @Override
    public void onTabReselected(ActionBar.Tab tab,
            FragmentTransaction fragmentTransaction) {
    }

    public class SectionsPagerAdapter extends FragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            // TODO 在這邊決定哪個位置要給什麼 View（Fragment）
            Fragment fragment = null;
            // TODO 建議先在之前就初始化好 4 個 Fragment
            switch (position) {
            case 0:
                fragment = new AroundFragment();
                break;
            case 1:
                fragment = new MapsFragment();
                break;
            case 2:
                fragment = new FavoriteFragment();
                break;
            case 3:
                fragment = new AchievementFragment();
                break;
            default:
                break;
            }

            return fragment;
        }

        @Override
        public int getCount() {
            return 4;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            // TODO 在這邊決定每一個 View 的 title
            switch (position) {
            case 0:
                return getString(R.string.title_around);
            case 1:
                return getString(R.string.title_map);
            case 2:
                return getString(R.string.title_favorite);
            case 3:
                return getString(R.string.title_achievement);
            }
            return null;
        }
    }

}

MapsFragment.java:

public class MapsFragment extends Fragment{
    static final LatLng NKUT = new LatLng(23.979548, 120.696745);
    private GoogleMap map;
    SupportMapFragment mMapFragment;
    public MapsFragment() {

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.map_fragment,container, false);

        map = ((SupportMapFragment)getFragmentManager().findFragmentById(R.id.map)).getMap();

         mMapFragment = SupportMapFragment.newInstance();
         FragmentTransaction fragmentTransaction =
                 getFragmentManager().beginTransaction();
         fragmentTransaction.add(R.id.map,mMapFragment);
         fragmentTransaction.commit();

        return rootView;

    }
}

Map_fragment.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"
    tools:context=".MainActivity" >

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

</RelativeLayout> 

Manifest.xml:

<!-- Google Map -->
<permission
        android:name="com.jertt.yummymap.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
<uses-permission android:name="com.jertt.yummymap.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"/>
<!-- The following two permissions are not required to use
     Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

<!-- end -->
    <!-- Google Map API Key -->

    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="key" />

    <!-- end -->

Solution:

I found the solution!!!

If you use private keystore to apply API_KEY. You cannot upload and install application with eclipse.

You need to upload .apk file to your device by yourself and install it!

Thanks Tarsem and srikanth gr help!!

Answer 1

I was able to use the debug key and load from eclipse. I was missing the following permission in my AndroidManifest.xml

uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"

Answer 2

I have fixed the issue by giving the permission in the manifest

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>

Answer 3

In my case what worked is that I had to install it via command line :

adb install /path/to/app/MyApp.apk

Answer 4

I was facing the same problem. I have tried several solutions - none worked for me. What worked for me was generating a new API key and CLEARING the DATA of the Google play service on my device.

Answer 5

After reviewing a lot of cases and successfully run the maps, these things are important to have in mind:

• Use android api 17, booth emulator and project
• Reference the google services
• Use the android support if needed
• Use the following order in libraries: src, gen, google apis, android support, dependencies and private libraries
• Use a correct api key
• Clear data, re-install app.

Answer 6

All you have to do is: use the debug key in your code; uninstall the app; install the new app with the debug key.