The Map Doesn't Show, only show Grid, and Show Grey Background

Question

i just want to ask i want to make googlemaps apps on android.. i have follow instruction from many website (include from google developer) but the apps doesn\'t work on my r

Answer 1

Only gray backgrounds shows in case of incorrect API_KEY. Probably you mixed up debug and production keys.

Answer 2

Use MapView in your xml

 <com.google.android.gms.maps.MapView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"        
        android:apiKey="AIzaSyCpC852JtX3dHjqGP6UnJBygJUdO0w_pBY"
        android:clickable="true"
        android:id="@+id/mMapView"
        android:enabled="true" />

and Use the below code for the GoogleActivity:

public class GoogleActivity extends Activity {
    private GoogleMap mGglMpInstance;
    private MapView mMapView;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            try {
                MapsInitializer.initialize(MainActivity.this);
            } catch (GooglePlayServicesNotAvailableException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } 
            initailizeLayout(savedInstanceState);
        }

        private void initailizeLayout(Bundle savedInstanceState){
            mMapView=(MapView)findViewById(R.id.mMapView);
            mMapView.onCreate(savedInstanceState);
            mGglMpInstance=mMapView.getMap();
    }

Answer 3

See here,just change the api key with your key in manifest file and follow these steps: and make sure that generate api key with package name which is mentioned in android manifest file and 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.

And make sure following steps done correct or not:

Steps: * to ensure that device has Google Play services APK * to install Google Play Service rev. more than 2

• to create project at https://code.google.com/apis/console/
• to enable "Google Maps Android API v2"
• to register of SHA1 in project (NOW, YOU NEED WRITE SHA1;your.app.package.name) at APIs console and get API KEY
• to copy directory ANDROID_SDK_DIR/extras/google/google_play_services/libproject/google-play-services_lib to root of your project
• to add next line to the YOUR_PROJECT/project.properties

android.library.reference.1=google-play-services_lib

• to add next lines to the YOUR_PROJECT/proguard-project.txt

-keep class * extends java.util.ListResourceBundle {

protected Object[][] getContents();

}

Okay, now you ready to create your own Google Map app with using Google Map APIs V2 for Android.

If you create application with min SDK = 8, please use android support library v4 + SupportMapFragment instead of MapFragment.

Answer 4

Check this :

Google Maps V2 , Google Maps V2 and Example

Hope this helps.

Answer 5

try to enable Googlre map api v2 in services of google api console

you have copy pasted the api key try to create a api key your own ...

how to create a Google API key