I am new to Android and am trying to display a Google Map on an Android Phone. I created the API Key that should work for any Android App ( I did not give any specific SHA for my app). I am guessing that should not matter. Using the Google Android Tutorials, I am doing all the steps, I get the google watermark on the left bottom, but no map. I will post all the code being used. I have tried to use the Google Maps Activity shipped in Android Studio 1.2.1.1. I don't get any errors, but don't get the map either.
I am using a MapFragment as it seems to be easier than the MapView.
I also viewed the developers console for this API - I dont have any traffic - could it be that the API key is not being used and so my app is not getting the report? I suspect that - how can I test that?
I am trying to follow the steps here - https://developers.google.com/maps/documentation/android/map
Another related query is, I am assuming I can create mutiple layouts. I started with a Blank Activity that acts as my Splash screen, then I am trying to go to a Map Activity - I am not able to create a Map Activity inside Android Studio. I can create it as the first activity through the wizard, but not as a second activity. Am I missing something?
Any help is appreciated
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.nbapl.avapps.mapscreen" >
<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 ACCESS_COARSE/FINE_LOCATION 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" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<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="API_KEY" />
<activity
android:name=".MapsActivity"
android:label="@string/title_activity_maps" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I have also used File->Project Structure ->Dependencies - App-> and found that Google Play Services is included.
MapsActivity.java
package com.nbapl.avapps.mapscreen;
import com.google.android.gms.maps.*;
import com.google.android.gms.maps.model.*;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map);
MapFragment mapFragment = (MapFragment) getFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap map) {
map.addMarker(new MarkerOptions()
.position(new LatLng(0, 0))
.title("This is the center"));
}
}
Here is the Layout xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/frame"
android:background="#ffe2ff0e"
android:clickable="false"
android:foreground="#fffff9c5">
<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" />
</FrameLayout>
Gradle file with dependencies enetered at the module level build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "23.0.0 rc2"
defaultConfig {
applicationId "com.nbapl.avapps.mapscreen"
minSdkVersion 15
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.google.android.gms:play-services:7.5.0'
compile 'com.android.support:appcompat-v7:22.2.0'
}
Your activity creates the layout, but you need some additional code to actually start the map:
In MapsActivity.java:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
MapFragment mapFragment = (MapFragment) getFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
Also, your activity should implement OnMapReadyCallback for more map logic. See the documentation at https://developers.google.com/maps/documentation/android/