How to implement Google Maps new version of API v2
- by bapatla
Hi every one I came to know that google maps has deprecated its previous version API v1 and introduced a new version of google maps API v2. I tried out one example by following some links in google any how i am pretty sure that i got the api key correctly by providing the exact hash key code and managed to get the correct api key. Now i managed to write some code as well but when i tried to execute the code i am getting the errors please help me to solve this here is my code
and i even tried the sample codes provided by google play services an i got the same problem
this is the sample that i have done by referring some links in google
main activity
package com.example.apv;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.os.Bundle;
import android.app.Activity;
import android.app.FragmentManager;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
FragmentManager fragmentManager = getFragmentManager();
MapFragment mapFragment = (MapFragment)
fragmentManager.findFragmentById(R.id.map);
GoogleMap googleMap = mapFragment.getMap();
LatLng sfLatLng = new LatLng(37.7750, -122.4183);
googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
googleMap.addMarker(new MarkerOptions()
.position(sfLatLng)
.title("San Francisco")
.snippet("Population: 776733")
.icon(BitmapDescriptorFactory.defaultMarker(
BitmapDescriptorFactory.HUE_AZURE)));
googleMap.getUiSettings().setCompassEnabled(true);
googleMap.getUiSettings().setZoomControlsEnabled(true);
googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(sfLatLng, 10));
}
}
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"
class="com.google.android.gms.maps.MapFragment"/>
and finally my manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.apv"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17"/>
<permission
android:name="com.codebybrian.mapsample.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<!--Required permissions-->
permission oid:name="com.codebybrian.mapsample.permission.MAPS_RECEIVE"/>
<!--Used by the API to download map tiles from Google Maps servers: -->
<uses-permission android:name="android.permission.INTERNET"/>
<!--Allows the API to access Google web-based services: -->
<uses-permission
android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!--Optional permissions-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<!--Version 2 of the Google Maps Android API requires OpenGL ES version 2 -->
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
application android:label="@string/app_name" android:icon="@drawable/ic_launcher">
<activity android:name=".MyMapActivity"
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="AZzaSSsBmhi4dXoKSylGGmjkQ5Jev9UdAJBjk"/>
</application>
</manifest>
i run my application in emulator of version 4.2 and api level of 17 i got following error
12-17 10:06:52.590: E/Trace(826): error opening trace file: No such file or directory (2)
12-17 10:06:52.590: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0
12-17 10:06:52.590: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0
12-17 10:06:52.590: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0
12-17 10:06:52.680: I/ActivityThread(826): Pub com.google.android.gms.plus;com.google.android.gms.plus.action: com.google.android.gms.plus.provider.PlusProvider
12-17 10:06:52.740: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0
12-17 10:06:52.740: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0
12-17 10:06:52.760: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0
later i came to know that these version cant execute in emulator so i tried executing it with two devices one is Sony xperia u of android version 2.3.7 and Samsung galaxy tab of android version 4.1.1 and these are my outputs
12-17 14:37:02.468: D/AndroidRuntime(7636): Shutting down VM
12-17 14:37:02.468: W/dalvikvm(7636): threadid=1: thread exiting with uncaught exception (group=0x41f672a0)
12-17 14:37:02.476: E/AndroidRuntime(7636): FATAL EXCEPTION: main
12-17 14:37:02.476: E/AndroidRuntime(7636): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.apv/com.example.apv.MyMapActivity}: java.lang.ClassNotFoundException: com.example.apv.MyMapActivity
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2021)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.ActivityThread.access$600(ActivityThread.java:140)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.os.Handler.dispatchMessage(Handler.java:99)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.os.Looper.loop(Looper.java:137)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.ActivityThread.main(ActivityThread.java:4895)
12-17 14:37:02.476: E/AndroidRuntime(7636): at java.lang.reflect.Method.invokeNative(Native Method)
12-17 14:37:02.476: E/AndroidRuntime(7636): at java.lang.reflect.Method.invoke(Method.java:511)
12-17 14:37:02.476: E/AndroidRuntime(7636): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller .run(ZygoteInit.java:994)
12-17 14:37:02.476: E/AndroidRuntime(7636): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
12-17 14:37:02.476: E/AndroidRuntime(7636): at dalvik.system.NativeStart.main(Native Method)
12-17 14:37:02.476: E/AndroidRuntime(7636): Caused by: java.lang.ClassNotFoundException: com.example.apv.MyMapActivity
12-17 14:37:02.476: E/AndroidRuntime(7636): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
12-17 14:37:02.476: E/AndroidRuntime(7636): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
12-17 14:37:02.476: E/AndroidRuntime(7636): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.Instrumentation.newActivity(Instrumentation.java:1068)
12-17 14:37:02.476: E/AndroidRuntime(7636): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2012)
12-17 14:37:02.476: E/AndroidRuntime(7636): ... 11 more
could any one please suggest me to how to get this done and give me some links of new version API v2 tutorials of google maps and some examples links please help me
