title: Blank GoogleMap on a real Android 2.3 device
body: <p>I am trying to display google map on android 2.3.
  I followed the steps from <a href="https://developers.google.com/maps/documentation/android/start#installing_the_google_maps_android_v2_api" rel="nofollow noreferrer">here</a></p>
  
  <p>I am using android studio 0.3.7
  I am getting a image similar to <a href="https://stackoverflow.com/questions/15615759/blank-googlemap-on-a-real-android-2-3-device-with-google-api-lv-17">this</a></p>
  
  <p><strong>MainActivity.java :</strong></p>
  
  <pre><code>package com.Greek.Market;
  import android.support.v4.app.FragmentActivity;
  import android.support.v4.app.Fragment;
  import android.os.Bundle;
  import com.google.android.gms.maps.GoogleMap;
  import com.google.android.gms.maps.SupportMapFragment;
  public class MainActivity extends FragmentActivity {
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
      }
  }
  </code></pre>
  
  <p><strong>Activity_main.xml:</strong></p>
  
  <pre><code>&lt;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" &gt;
  
  &lt;fragment
      android:id="@+id/map"
      android:name="com.google.android.gms.maps.SupportMapFragment"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      class="com.google.android.gms.maps.SupportMapFragment"/&gt;
  </code></pre>
  
  <p></p>
  
  <p><strong>Manifest:</strong></p>
  
  <pre><code>  &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.Greek.Market"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="10"
          android:targetSdkVersion="19" /&gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name" &gt;
  
          &lt;meta-data android:name="com.google.android.gms.version"
              android:value="@integer/google_play_services_version" /&gt;
  
          &lt;meta-data
              android:name="com.google.android.maps.v2.API_KEY"
              android:value="AIzaSyB86qZi7klht-Dvu9LhosHdw2ZRHq3OZxk"/&gt;
  
          &lt;activity
              android:name="com.Greek.Market.MainActivity"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  
      &lt;permission
          android:name="com.Greek.Market.permission.MAPS_RECEIVE"
          android:protectionLevel="signature"/&gt;
      &lt;uses-permission android:name="com.Greek.Market.permission.MAPS_RECEIVE"
          android:protectionLevel="signature"/&gt;
  
      &lt;uses-permission android:name="android.permission.INTERNET"/&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/&gt;
      &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/&gt;
      &lt;uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/&gt;
      &lt;!-- The following two permissions are not required to use
           Google Maps Android API v2, but are recommended. --&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt;
  
      &lt;uses-feature
          android:glEsVersion="0x00020000"
          android:required="true"/&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p><strong>build.grandle:</strong></p>
  
  <pre><code>buildscript {
      repositories {
          mavenCentral()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:0.6.+'
      }
  }
  apply plugin: 'android'
  
  repositories {
      mavenCentral()
  }
  
  android {
      compileSdkVersion 19
      buildToolsVersion "19.0.0"
  
      defaultConfig {
          minSdkVersion 10
          targetSdkVersion 19
      }
      buildTypes {
          release {
              runProguard false
              proguardFile getDefaultProguardFile('proguard-android.txt')
          }
      }
      productFlavors {
          defaultFlavor {
              proguardFile 'proguard-rules.txt'
          }
      }
  }
  
  dependencies {
      compile 'com.android.support:appcompat-v7:+'
      compile 'com.google.android.gms:play-services:4.0.30'
  }
  </code></pre>
  
  <p>I deploy my app on a android device directly</p>
  
  <p>From what i read, i think the problem is the api_key, but i don't know where...</p>
  
  <p>I get SHA1 with the command:
  c:\Program Files\Java\jdk1.6.0_21\bin>keytool -list -v -keystore "c:\Users\user\
  .android\debug.keystore" -alias androiddebugkey -storepass android -keypass android</p>
  
  <p>Can someone help me? I am stuck</p>