I am creating an android application using google maps. here is the code:
MapFragActivity.java
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
public class MapFragActivity extends FragmentActivity {
private GoogleMap map;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map_frag);
map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
}
}
AndroidManifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.him.mapfrag_rnd"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="15" />
<permission
android:name="com.him.mapfrag_rnd.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.him.mapfrag_rnd.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<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-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MapFragActivity"
android:label="@string/title_activity_map_frag" >
<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="my_api_key" />
</application>
</manifest>
activity_map_frag.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
when I try this code I get an error, here is the log:
01-17 10:01:17.685: E/AndroidRuntime(8923): FATAL EXCEPTION: main
01-17 10:01:17.685: E/AndroidRuntime(8923): java.lang.NoClassDefFoundError: com.google.android.gms.R$styleable
01-17 10:01:17.685: E/AndroidRuntime(8923): at com.google.android.gms.maps.GoogleMapOptions.createFromAttributes(Unknown Source)
01-17 10:01:17.685: E/AndroidRuntime(8923): at com.google.android.gms.maps.SupportMapFragment.onInflate(Unknown Source)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:279)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:669)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
01-17 10:01:17.685: E/AndroidRuntime(8923): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:272)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.Activity.setContentView(Activity.java:1835)
01-17 10:01:17.685: E/AndroidRuntime(8923): at com.him.mapfrag_rnd.MapFragActivity.onCreate(MapFragActivity.java:16)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.Activity.performCreate(Activity.java:4470)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.ActivityThread.access$600(ActivityThread.java:127)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.os.Handler.dispatchMessage(Handler.java:99)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.os.Looper.loop(Looper.java:137)
01-17 10:01:17.685: E/AndroidRuntime(8923): at android.app.ActivityThread.main(ActivityThread.java:4511)
01-17 10:01:17.685: E/AndroidRuntime(8923): at java.lang.reflect.Method.invokeNative(Native Method)
01-17 10:01:17.685: E/AndroidRuntime(8923): at java.lang.reflect.Method.invoke(Method.java:511)
01-17 10:01:17.685: E/AndroidRuntime(8923): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:986)
01-17 10:01:17.685: E/AndroidRuntime(8923): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:753)
01-17 10:01:17.685: E/AndroidRuntime(8923): at dalvik.system.NativeStart.main(Native Method)
when I make some changes in MapFragActivity.java, then map is displayed. here are the changes:
package com.him.mapfrag_rnd;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.SupportMapFragment;
public class MapFragActivity extends FragmentActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_map_frag);
SupportMapFragment fragment = new SupportMapFragment();
getSupportFragmentManager().beginTransaction().add(android.R.id.content, fragment).commit();
}
}
The change I have done is commented the setContentView.
I have followed all the required steps and still I am getting and error. if uncomment the setContentView() then again I get the error.
Please HELP!!!
What you have to do is include a Google Play Services library to your project. Google has very good instructions here:
Also, there is a quick start which I found very useful while trying to get Google Maps v2 to work.