Google map is blank, only zoom shows - java

I am trying to embed Google Maps into my app. Below is my xml file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical" >
<fragment
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"/>
</LinearLayout>
Here is the main class file:
package com.em.basicmap;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
public class MainActivity extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Here is my manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.em.basimap"
android:versionCode="1"
android:versionName="1.0" >
<permission android:name="com.em.MAPS_RECIEVE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.em.MAPS_RECIEVE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="com.google.android.providers.gsf.permissions.READ_GSERVICES"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.em.basicmap.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="AIzaSyCrstFrx_Mj8PaBJYtSH6bk62kggzstYzM"/>
</application>
</manifest>
I have tried everything I can think of. I have made sure that I have Google Maps Android API in the google apis. I have renewed my debugging key many times, I have downloaded the google-play services and I have copied the lib jar into my directory. I have ensure that my target sdk is Google api 17, I have included all of the permissions that I could find that I might need. I've looked all over StackOverflow for help, and the above are the help that I could find, but my app still displays a blank screen and zoom buttons. I'm really at a loss for what to do now. Are there some other things I have not done correctly? How might my access my SHA1 code? I have done it through the command line and eclipse, but my logcat says that it may still be an authorization issue.

public class MapsActivity extends FragmentActivity
{
GoogleMap gm;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.maps);
gm = ((SupportMapFragment) (getSupportFragmentManager()
.findFragmentById(R.id.map))).getMap();
gm.setMapType(GoogleMap.MAP_TYPE_NORMAL);
gm.setMyLocationEnabled(true);
}
}
There are two keys.Debug and release key. Release key procedure,you can refer here.
Google Map Android API v2 can't display map in play store application

In your MainActivity you will have to load the GoogleMap. Just putting fragment in xml file doesn't going to load the map.
Try out as below:
public class MainActivity extends FragmentActivity {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Do a null check to confirm that we have not already instantiated the map.
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
// Check if we were successful in obtaining the map.
if (mMap != null) {
mMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
}
}
}
}

Your manifest looks right. It's definitely a problem with your key.
In the api console, under services, make sure you have selected Google Maps Android API v2 and not Google Maps API v3. Also, make sure you have appended your package name to your key and that your are generating your SHA-1 on the same key that you are signing with. If this is debug mode, use:
keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore -list -v
If release mode use your release keystore.

So it is problem with your API key, create new API key with your SHA-1 key and package name(mentioned in Android manifest.xml) separated with semi column.
See here,just change the api key with your key in manifest file and follow these steps:
and make sure that your google_play_services_lib project should be present in your project's work space only.
Manifest file:
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<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.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.geeklabs.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="replace with your API key"/>
</application>
</manifest>
MainActivity.java:
package com.geeklabs.map;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.MapFragment"/>
After got this let me know.

Related

Imposible to develop a simple android app using Google Map API V2

I would like to use a Google Map in my current application. Before integrate it to my app, I created a test project to understand the functionalities.
I read this : https://developers.google.com/maps/documentation/android/start#installing_the_google_maps_android_v2_api
and this :
http://developer.android.com/google/play-services/setup.html#
After a lot of problems with these errors :
didn't find class com.google.android.gms.maps.MapFragment
and
Found 2 versions of android-support-v4.jar in the dependency list,
but not all the versions are identical (check is based on SHA-1 only at this time)
When I run my project, Eclipse says "Launching Test:(99%)", then my computer temperature up to 100°C and Eclipse take 512% of my CPU ! So I'm obliged to force Eclipse to quit.
I spent a lot of time on stack overflow, rebuild, clean, add support library, delete project and recreate from the beginning etc.
Help me, I just want to create a basic app to test a GoogleMap !
My code :
MainActivity.java
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.MapFragment"/>
manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<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" />
<!--
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" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".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.gms.version"
android:value="#integer/google_play_services_version" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="***" />
</application>
</manifest>
Edit : I know now that the problem appears when I reference the google-play-services_lib to my project... Any ideas ?
public class YourActivity extends FragmentActivity {
GoogleMap map;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_activity);
map =((SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.iqamah_map)).getMap();
}
}
your xml :
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/iqamah_map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.SupportMapFragment" />
Add this in your Manifest
<uses-permission android:name="com.example.test.permission.MAPS_RECEIVE" />
<uses-library android:name="com.google.android.maps" />
Even me having the same issue, then instead of getting API key from Google Map Android V2, i took the API key from Google Maps Embed API and included in the Manifest and solved my problem.
Proof:
1.API key i took for project
2.Used Key in Manifest.xml

MapActivity :Couldn't get connection factory client

I am trying to use google map for my android application but all i get is grey grids and in logcat it shows error like :
02-11 09:49:56.860: E/MapActivity(979): Couldn't get connection factory client
I have added permission in manifest to use internet.
I have used google library.
I have used Correct Map Api key for android application.
I am using correct emulator to support google API
Browser in my emulator is working and connecting to internet but my App is not working even on android mobile!
here is my manifest file code :
package="com.nawed.maps"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"/>
<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.nawed.maps.ShowMap"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
My activity class :
package com.nawed.maps;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import android.os.Bundle;
public class ShowMap extends MapActivity {
MapView mapView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_map);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
}
#Override
protected boolean isRouteDisplayed() {
return false;
}
}
My XML file :
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="MyKey"
/>
I have seen other repeated questions but it doesn't worked for me.
Thank you in advance.

Google Maps for Android Signing process

First things first.
I've been having a lot of trouble getting a map to be displayed. By this I mean that I've followed multiple tutorials, including the Google Maps V2 intro here.
I read somewhere that I cannot test maps on emulators (elsewhere that I need another kind of custom emulator) so my process has been continually to use dropbox to install the app on my own phone. This may be relevant because i've just read here that the only way a map will work is if it's signed and installed through Google Play Store.
More to the problem, what I see when I view the app is and empty map with zoom controls. I've read in several places that this seems to be signing trouble. I've reread the whole process and after trying almost every possibility, I know I must know exactly what i'm doing first.
As I understand it there are two ways to get an app to work: debug or testing and release. I've signed the app with both keystores, having added them to the Google API Console as described in the tutorials. Both attempts bring about the same result: the empty map with zoom controls.
I will say this: there is a fair amount of, if not contradicting, ambiguous information about this whole process.
UPDATE
It's working now and I have now idea why. I will share my relevant files just in case it can help anyone else. These files are exact copy paste (minus relevant package names) from here.
MainActivity.java
package com.taveras.androidmapsv2;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends Activity {
// Google Map
private GoogleMap googleMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
// Loading map
initilizeMap();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* function to load map. If map is not created it will create it for you
* */
private void initilizeMap() {
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
// check if map is created successfully or not
if (googleMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
}
}
#Override
protected void onResume() {
super.onResume();
initilizeMap();
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.taveras.androidmapsv2"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="18" />
<permission
android:name="com.taveras.androidmapsv2.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.taveras.androidmapsv2.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<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_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.taveras.androidmapsv2.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.gms.version"
android:value="#integer/google_play_services_version"
/>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyDLKtTtTDxULNBvNLtGPvkEf6NNacs-42A" />
</application>
</manifest>
Thanks in advance for any leads.
Ebichuhamster
sorry can't comment yet due to low rep, this link helped me a lot when i first started working with Google Maps V2. it has everything you need to get started as well as getting the api key.
usually a blank map is a problem with the signing process as you have read. try following the link it's very detailed.
also as far as i know you can run google maps on the emulator there are a lot of threads regarding this matter here on SO. (this thread for example)

Google maps with android

I want to display google maps in my android application. I tried with the google api, but it seems to have problems with API 12 and lower. So i used the example in this page (http://www.truiton.com/2013/05/android-supportmapfragment-example/), but it doesn't seem so work in my API 7 device (xperia 10 mini pro). I used the same code in that page and i get this error after the application starts:
10-18 18:04:55.481: E/AndroidRuntime(3980): Uncaught handler: thread main exiting due to uncaught exception
10-18 18:04:55.491: E/AndroidRuntime(3980): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.maps/com.example.maps.MainActivity}: java.lang.ClassNotFoundException: com.example.maps.MainActivity in loader dalvik.system.PathClassLoader#458fc8e0
I get this error even if i did the "Add support library" in the "Android tools" menu, but it doesn't work. I saw that using GM with a web view is not a great idea, so i wanted to fix this problem.
you need to use 2.2 (API 8) and up inorder to use google maps v2
See here,just change the api key with your key in manifest file and follow these steps:
and make sure that your google_play_services_lib project should be present in your project's work space only.
Manifest file:
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<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.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.geeklabs.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="replace with your API key"/>
</application>
</manifest>
MainActivity.java:
package com.geeklabs.map;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.MapFragment"/>
After got this let me know.

What's wrong with google map API v2?

This issue is common BUT I didn't find a solution on google, or stackoverflow (4days of research...)
Here is the thing :
I need to display a full screen google map, which i ve already done several times in other application i've developped.
BUT here i can't get it to work for an unknow reason !
The warning and the error i get when i open the SherlockFragmentActivity which contains the map :
The Google Play services resources were not found. Check your project configuration to ensure that the resources are included.
Failed to load map. Error contacting Google servers. This is probably an authentication issue (but could be due to network errors).
Here i'll explain how i did things in detail and post some code :
LIBRARY IMPORT :
Last version of Google play services imported in eclipse as library (checked)
In the project the google play services are imported as library in properties (like ABS)
MANIFEST :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="pck name"
android:versionCode="1"
android:versionName="1.0" >
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<permission
android:name="com.company.pckgname.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
<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_NETWORK_STATE" />
<!-- LOCATION -->
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<application
android:name="app variable name"
android:allowBackup="true"
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme.Styleapp" >
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="api key" />
<activity
android:name=".ActivityLauncher"
android:configChanges="orientation|screenSize"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#style/Theme.Sherlock.NoActionBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
... activities...
</application>
</manifest>
MAP LAYOUT :
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/map"
android:name="com.company.pckgname.TransparentSupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
ACTIVITY :
public class ActivityGoogleMap extends SherlockFragmentActivity implements OnInfoWindowClickListener {
GoogleMap _googleMap;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// ABS
ActionBar bar = getSupportActionBar();
bar.setTitle(R.string.tle_map);
bar.setDisplayHomeAsUpEnabled(true);
// MAP
_googleMap = ((TransparentSupportMapFragment) getSupportFragmentManager().findFragmentById((R.id.map))).getMap();
//the map should still display at this point
}
}
And so that's it, the main code is here
The map was working up until now, i didn't do nything with the code map related...
I tried to regenerate a debug key on the google console, change the permissions .. etc i am out of idea !!!!
After changing the API key in AndroidManifest.xml you must clear application data.
To clear application data do one of the following:
Go to Settings > Application Manager > Select Your Application > Clear Data
Uninstall the application before re-installing it.
<uses-feature android:glEsVersion="131072" android:required="true" />
Put this under your permissions in your manifest.

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