Google maps android app shows gray grid tiles

Question

this is the last code of project. i follow all of your steps https://blog-emildesign.rhcloud.com/?p=435 but my app is stopped.

main.java

  package com.example.halkbank;

    import android.os.Bundle;
    import android.app.Activity;
import android.view.Menu;
import android.support.v4.app.FragmentActivity;

public class GoogleMaps extends FragmentActivity {

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

}

main.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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".GoogleMaps" >

 <fragment
    android:name="com.google.android.gms.maps.SupportMapFragment"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

manifest.xml

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />


<permission android:name="com.example.halkbank.permission.MAPS_RECEIVE" android:protectionLevel="signature"/>
<uses-permission android:name="com.example.halkbank.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-feature
android:glEsVersion="0x00020000"
android:required="true"/>


    <application

        <application
            android:icon="@drawable/ic_launcher"
            android:label="@string/app_name">
            <uses-library android:name="com.google.android.maps" /> 

            <activity
        android:name="com.example.halkbank.GoogleMaps"
        android:label="@string/title_activity_google_maps" 
        android:theme="@android:style/Theme.NoTitleBar" >
        <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="api key" />
    </application>

</manifest>

and printscreens of my libraries

http://s22.postimg.org/66m62oxk1/image.png

what do you mean?? where is my mistake??

Answer 1

You are trying to use both version of the Google Maps API. While you are using the android-support library and google-play-services library that are required for API V2 in you code you are using API V1.

I guess that this is the reason you don't see a map, you probably produces a key for API V2 and trying to use in API V1.

The first thing you should do is to move your code to API V2 as API V1 as been already said is deprecated and outdated.

Now to be more clear this means that you will have to remove this:

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

as it belongs to API V1.

Next you will have to get a new API V2 key, if you haven't already did so, you can use this guide to do this:

Google Maps API V2 Key

and then change your java code from MapActivity and MapView code to a simple Activity or FragmentActivty and MapFragment or SupportMapFragment respectivly depending for which platform you develop your application, you can get an idea how to start using this guide:

Google Maps API V2

You forgot to change the name of the activity in your manifest file from:

<activity
            android:name="com.example.halkmaps.MainActivity"
            android:label="@string/app_name" 
            android:theme="@android:style/Theme.NoTitleBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

To:

<activity
            android:name="com.example.halkmaps.GoogleMaps"
            android:label="@string/app_name" 
            android:theme="@android:style/Theme.NoTitleBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

Answer 2

Even though using a MapView with an older API key should still work, it has been recently deprecated. (source)

You should be using the Google Maps Android API v2 which is added to applications with a MapFragment. Read more about it in the documentation.

Try adding the map to your application according to the tutorial in the documentation and then ask a new question if that doesn't work.