Develop Reference

Imposible to develop a simple android app using Google Map API V2

I would like to use a Google Map in my current application. Before integrate it to my app, I created a test project to understand the functionalities.
I read this : https://developers.google.com/maps/documentation/android/start#installing_the_google_maps_android_v2_api
and this :
http://developer.android.com/google/play-services/setup.html#
After a lot of problems with these errors :
didn't find class com.google.android.gms.maps.MapFragment
and
Found 2 versions of android-support-v4.jar in the dependency list,
but not all the versions are identical (check is based on SHA-1 only at this time)
When I run my project, Eclipse says "Launching Test:(99%)", then my computer temperature up to 100°C and Eclipse take 512% of my CPU ! So I'm obliged to force Eclipse to quit.
I spent a lot of time on stack overflow, rebuild, clean, add support library, delete project and recreate from the beginning etc.
Help me, I just want to create a basic app to test a GoogleMap !
My code :
MainActivity.java
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"/>
manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<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" />
<!--
The following two 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" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".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.gms.version"
android:value="#integer/google_play_services_version" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="***" />
</application>
</manifest>
Edit : I know now that the problem appears when I reference the google-play-services_lib to my project... Any ideas ?

public class YourActivity extends FragmentActivity {
GoogleMap map;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_activity);
map =((SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.iqamah_map)).getMap();
}
}
your xml :
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/iqamah_map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.SupportMapFragment" />
Add this in your Manifest
<uses-permission android:name="com.example.test.permission.MAPS_RECEIVE" />
<uses-library android:name="com.google.android.maps" />

Even me having the same issue, then instead of getting API key from Google Map Android V2, i took the API key from Google Maps Embed API and included in the Manifest and solved my problem.
Proof:
1.API key i took for project
2.Used Key in Manifest.xml

Android external activity fails

I'm trying to set up android multiple file chooser from https://github.com/paulasiimwe/Android-Multiple-file-Selector-Dialog.
I've added dependency to this library from my project.
Problem is app just fails when I click "run as android application".
Log:
[2015-01-30 01:55:19 - PhotoSigner] Android Launch!
[2015-01-30 01:55:19 - PhotoSigner] adb is running normally.
[2015-01-30 01:55:19 - PhotoSigner] Performing com.vladimir.photosigner.MainActivity activity launch
[2015-01-30 01:55:19 - PhotoSigner] Automatic Target Mode: using device 'HT17MV800004'
[2015-01-30 01:55:19 - PhotoSigner] Uploading PhotoSigner.apk onto device 'HT17MV800004'
[2015-01-30 01:55:26 - PhotoSigner] Failed to install PhotoSigner.apk on device 'HT17MV800004': timeout
[2015-01-30 01:55:26 - PhotoSigner] Launch canceled!
Here is my android manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com`enter code here`.vladimir.photosigner"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<activity android:name="paul.arian.fileselector.FileSelectionActivity" />
<activity android:name="paul.arian.fileselector.FolderSelectionActivity" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.vladimir.photosigner.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>
</application>
</manifest>
And my code calling external activity:
import paul.arian.fileselector.FileSelectionActivity;
...
setContentView(R.layout.activity_main);
Intent intent = new Intent(getBaseContext(), FileSelectionActivity.class);
startActivityForResult(intent, 0);
...
onActivityResult is exactly same as man said in https://github.com/paulasiimwe/Android-Multiple-file-Selector-Dialog.
Could anyone help with that?

Type Conversion to Dalvik format failed: Unable to execute dex: java.nio.BufferOverflowException

I am making a simple map application but on running it, errors are displayed which i don't understand....
my project min SDK is android 2.2(Froyo) API 8 , target SDK is android 4.4(kitkat) API 19 and app is compiled with Google API 2 rev 8.....
I really don't know what should be the combinations of min, target and compiled apis in order to make my app run ....help me out with the proper combination.
following is my manifest file code
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.margallahillhikedroid"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<uses-library android:name="com.google.android.maps"/>"
<activity
android:name="com.example.margallahillhikedroid.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>
</application>
</manifest>
// following is main java source
// package com.example.margallahillhikedroid;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import android.os.Bundle;
import android.view.Menu;
public class MainActivity extends MapActivity {
MapView map;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
map=(MapView)findViewById(R.id.mymap);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
following is 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=".MainActivity" >
<com.google.android.maps.MapView
android:id="#+id/mymap"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:apiKey="AIzaSyBcTxeirTSzthVlMal5JDDC-SK-Mw7s_CE"/>
</RelativeLayout>
on running the app following errors in console section displayed;
[2014-04-14 07:37:14 - MargallahillHikedroid] Dx
trouble writing output: already prepared
[2014-04-14 07:37:14 - Dex Loader] Unable to execute dex: java.nio.BufferOverflowException. Check the Eclipse log for stack trace.
[2014-04-14 07:37:14 - MargallahillHikedroid] Conversion to Dalvik format failed: Unable to execute dex: java.nio.BufferOverflowException. Check the Eclipse log for stack trace.
in the problem section following error is displayed
Description Resource Path Location Type
Conversion to Dalvik format failed: Unable to execute dex: java.nio.BufferOverflowException. Check the Eclipse log for stack trace. MargallahillHikedroid Unknown Android Packaging Problem
I am making a map application but on running it above mentioned errors are displayed in the problem section as well as the console section.

Your problem is that you are trying to implement Google Maps API V1, probably using the Google Maps API V2 key. And That you can't do.
So what you should do is make the following changes in your code:
1. Remove: <uses-library android:name="com.google.android.maps"/>"
from your manifest file, this a V1 permission.
2. If you want to support V8 API then you have to remove the implementation of you activity to MapActivity and change it to FragmentActivity. For supporting fragment on older systems.
3. Change you xml layout file from:
<com.google.android.maps.MapView
android:id="#+id/mymap"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:apiKey="AIzaSyBcTxeirTSzthVlMal5JDDC-SK-Mw7s_CE"/>
To this:
<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" />
4. Finally you have to add some staff in your manifest file:
Add those permissions:
<permission android:name="your.application.package.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="your.application.package.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"/>
change your.application.package to your actual application package name.
And add those:
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="Your Google Maps API V2 Key" />
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
under the application hive.
You can also use this guide that I wrote on this topic to help you out:
Google Maps API V2
and go over the steps of producing the api key and make sure you haven't missed any thing:
Google Maps API V2 Key

It sometimes appen with Eclipse. You just have to close Eclipse, relaunch it, clean your project, refresh it, and retry... It should do the trick... ;)

The min sdk forvmap v2 is 11 please change to that.And try

You need to implement Google Map V2. May be following line causing the problem in the manifest uses-library android:name="com.google.android.maps"

Google maps with android

I want to display google maps in my android application. I tried with the google api, but it seems to have problems with API 12 and lower. So i used the example in this page (http://www.truiton.com/2013/05/android-supportmapfragment-example/), but it doesn't seem so work in my API 7 device (xperia 10 mini pro). I used the same code in that page and i get this error after the application starts:
10-18 18:04:55.481: E/AndroidRuntime(3980): Uncaught handler: thread main exiting due to uncaught exception
10-18 18:04:55.491: E/AndroidRuntime(3980): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.maps/com.example.maps.MainActivity}: java.lang.ClassNotFoundException: com.example.maps.MainActivity in loader dalvik.system.PathClassLoader#458fc8e0
I get this error even if i did the "Add support library" in the "Android tools" menu, but it doesn't work. I saw that using GM with a web view is not a great idea, so i wanted to fix this problem.

you need to use 2.2 (API 8) and up inorder to use google maps v2

See here,just change the api key with your key in manifest file and follow these steps:
and make sure that 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.

What's wrong with google map API v2?

This issue is common BUT I didn't find a solution on google, or stackoverflow (4days of research...)
Here is the thing :
I need to display a full screen google map, which i ve already done several times in other application i've developped.
BUT here i can't get it to work for an unknow reason !
The warning and the error i get when i open the SherlockFragmentActivity which contains the map :
The Google Play services resources were not found. Check your project configuration to ensure that the resources are included.
Failed to load map. Error contacting Google servers. This is probably an authentication issue (but could be due to network errors).
Here i'll explain how i did things in detail and post some code :
LIBRARY IMPORT :
Last version of Google play services imported in eclipse as library (checked)
In the project the google play services are imported as library in properties (like ABS)
MANIFEST :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="pck name"
android:versionCode="1"
android:versionName="1.0" >
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<permission
android:name="com.company.pckgname.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
<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_NETWORK_STATE" />
<!-- LOCATION -->
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<application
android:name="app variable name"
android:allowBackup="true"
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme.Styleapp" >
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="api key" />
<activity
android:name=".ActivityLauncher"
android:configChanges="orientation|screenSize"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#style/Theme.Sherlock.NoActionBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
... activities...
</application>
</manifest>
MAP LAYOUT :
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/map"
android:name="com.company.pckgname.TransparentSupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
ACTIVITY :
public class ActivityGoogleMap extends SherlockFragmentActivity implements OnInfoWindowClickListener {
GoogleMap _googleMap;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// ABS
ActionBar bar = getSupportActionBar();
bar.setTitle(R.string.tle_map);
bar.setDisplayHomeAsUpEnabled(true);
// MAP
_googleMap = ((TransparentSupportMapFragment) getSupportFragmentManager().findFragmentById((R.id.map))).getMap();
//the map should still display at this point
}
}
And so that's it, the main code is here
The map was working up until now, i didn't do nything with the code map related...
I tried to regenerate a debug key on the google console, change the permissions .. etc i am out of idea !!!!

After changing the API key in AndroidManifest.xml you must clear application data.
To clear application data do one of the following:
Go to Settings > Application Manager > Select Your Application > Clear Data
Uninstall the application before re-installing it.

<uses-feature android:glEsVersion="131072" android:required="true" />
Put this under your permissions in your manifest.