petedoyle / android-support-v4-googlemaps Goto Github PK

Google Maps API v2 is not ready for production. I attempted to integrate it into my application and found that really weird things happen when you switch back and forth between fragments with it, such as black screens and so on.

In regards to:

"Currently, one downside is that ALL classes extending FragmentActivity are MapActivitys. Its possible to make a separate class (i.e. FragmentMapActivity), but it requires some refactoring of the FragmentActivity code.

Feel free to file a bug to request it or fork this project to fix it."

I would love to see an implementation of this project that supports FragmentActivity(s) both with and without extending MapView. Unfortunately Google's limitation of allowing only one MapActivity per process makes things quite awkward. Effectively I can only have one FragmentActivity per process.

I can't include both the Compatibility package from Google and this one because they share the same namespaces.

There is new version of support lib. Check it here: http://developer.android.com/sdk/compatibility-library.html

It'd be nice to be able to pull in this library via Maven.

There is a new revision of the Support Package, revision 11.
Everyone is excited to use nested Fragments. :)

Thanks a whole bunch, this jar really saves everyone from a huge headache.

Hi,
Can you please create the jars with source attached for downloading? It helps a lot when trying to debug errors in the application.
The new ADT for Eclipse does not let me attach sources to the jar since it's part of the "Android dependency" now.

Thank you very much!
Shay

Hi,
Thank you for providing a hack lib for MapView.
My implementation of mapView is successful except that I get an error when I call
getActivity().onBackPressed();
from another fragment(other then map fragment)
Here is a detailed information about the exception I am getting.

App for: Mobile
Version: Android 2.2
Supporting file used: android-support-v13-r6-googlemaps.jar

Senario:

1. I have created a Activity which extends FramentActivity(supported from the lib provided)
2. I have created 2 fragments.
   a. MapFragment - which has its own layout and this layout contains mapview
   b. InformationFragment - which has its own layout and DONOT have mapview. it contains table layout and other stuff
3. I have button in layout for InformationFragment which will call getActivity().onBackPressed();

When I press this button or press back button on the device following is the exception I am getting

01-10 09:54:38.141: E/AndroidRuntime(9726): FATAL EXCEPTION: main
01-10 09:54:38.141: E/AndroidRuntime(9726): android.view.InflateException: Binary XML file line #5: Error inflating class
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.LayoutInflater.createView(LayoutInflater.java:513)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.mid.kew.activities.MapFragment.onCreateView(MapFragment.java:78)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.support.v4.app.FragmentManagerImpl.moveToState(Unknown Source)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.support.v4.app.FragmentManagerImpl.moveToState(Unknown Source)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.support.v4.app.BackStackRecord.popFromBackStack(Unknown Source)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.support.v4.app.FragmentManagerImpl.popBackStackState(Unknown Source)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.support.v4.app.FragmentManagerImpl.popBackStackImmediate(Unknown Source)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.support.v4.app.FragmentActivity.onBackPressed(Unknown Source)
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.mid.kew.activities.CustomiseMapMainFragment$1.onClick(CustomiseMapMainFragment.java:66)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.View.performClick(View.java:2461)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.View$PerformClick.run(View.java:8888)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.os.Handler.handleCallback(Handler.java:587)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.os.Handler.dispatchMessage(Handler.java:92)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.os.Looper.loop(Looper.java:123)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.app.ActivityThread.main(ActivityThread.java:4627)
01-10 09:54:38.141: E/AndroidRuntime(9726): at java.lang.reflect.Method.invokeNative(Native Method)
01-10 09:54:38.141: E/AndroidRuntime(9726): at java.lang.reflect.Method.invoke(Method.java:521)
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
01-10 09:54:38.141: E/AndroidRuntime(9726): at dalvik.system.NativeStart.main(Native Method)
01-10 09:54:38.141: E/AndroidRuntime(9726): Caused by: java.lang.reflect.InvocationTargetException
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.google.android.maps.MapView.(MapView.java:238)
01-10 09:54:38.141: E/AndroidRuntime(9726): at java.lang.reflect.Constructor.constructNative(Native Method)
01-10 09:54:38.141: E/AndroidRuntime(9726): at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
01-10 09:54:38.141: E/AndroidRuntime(9726): at android.view.LayoutInflater.createView(LayoutInflater.java:500)
01-10 09:54:38.141: E/AndroidRuntime(9726): ... 23 more
01-10 09:54:38.141: E/AndroidRuntime(9726): Caused by: java.lang.IllegalStateException: You are only allowed to have a single MapView in a MapActivity
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.google.android.maps.MapActivity.setupMapView(MapActivity.java:379)
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.google.android.maps.MapView.(MapView.java:280)
01-10 09:54:38.141: E/AndroidRuntime(9726): at com.google.android.maps.MapView.(MapView.java:255)
01-10 09:54:38.141: E/AndroidRuntime(9726): ... 27 more

Following are the code snapshot on how the things are build

MapFragment -> onCreateView()
....
view = inflater.inflate(R.layout.map_page_layout, container, false);
mapView = (MapView) view.findViewById(R.id.mapview);
....

MapFragment Layout File -> map_page_layout
.....
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey=
android:layout_alignParentTop="true"
android:clickable="true"/>
.....

InformationFragment -> BackButton ->

Button backButton = (Button) v.findViewById(R.id.backButton);
backButton.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            getActivity().onBackPressed();

        }});

Can you please let me know if I am missing something or is it a bug...
Its urgent as I have to meet the deadlines

Thank you
Nikhil

There is new version of support lib. Check it here: http://developer.android.com/sdk/compatibility-library.html

Since all classes extend FragmentActivity it is tricky to incorporate this modified support library such that it will work on devices without google maps. Introducing a separate FragmentMapActivity class would make this easier.

For example, consider an app using a tab layout with each tab being a fragment and one of those tabs holding a map. Using the current library the app would FC immediately on devices without Google APIs (since every fragment has a reference to google maps). If a FragmentMapActivity class were created and used this could be applied to only the tab holding the map, then reflection could be used at runtime and this map could be removed for devices without access to google APIs.

Great project!

There is new version of support lib. Check it here: http://developer.android.com/sdk/compatibility-library.html

• [android-sdk-path]/tools/android sdk
  Download "Android 4.2 (API 17) SDK Platform"
• git clone git://github.com/petedoyle/android-support-v4-googlemaps.git
• cd android-support-v4-googlemaps
• rm -r ./support/
• cp -R [android-sdk-path]/extras/android/support/ ./
• cp [android-sdk-path]/platforms/android-17/android.jar lib/android-17.jar
• rm ./lib/android-16.jar
• Apply: c8e2716
• Replace
  protected void onNewIntent(Intent intent) {
  with
  public void onNewIntent(Intent intent) {
  in
  ./support/v4/src/java/android/support/v4/app/FragmentActivity.java
• Replace twice
  <include name="jellybean/**/*.java"/>
  with
  <include name="jellybean/**/*.java"/> <include name="jellybean-mr1/**/*.java"/>
  in
  ./build.xml
• ant

Make sure ant compiles with java 1.6. Check javac -version

Worked for me. Cheers