Because the old Admob SDK will be deprecated in August, I have written a library for interstitials using the new Google Play Services library. You'll need to follow initial steps noted in Erel's post for the Admob banner library to get your app ready for this library.
The new library should be compatible with your old code with the exception of a change to the AdFailedToReceive event. It should be declared in your app as follows.
This new library also supports a new event that triggers when the user closes an ad. You can use this event to queue a new ad to load or run other code.
The new library is called mwAdmobInterstitial2. I added the 2 to the end of the name so you can preserve your old library in case it is needed with other apps. The new library and example app for the library is attached at the end of this post.
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Below is for the old version (not using Google Play Services)
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I was able to put together a library to display interstitial ads from Admob. You'll need to create an interstitial ad unit in Admob and use it with the initialization process.
Make sure the following is added to your AndroidManifest.xml.
Here is code from the included sample app that shows how to use the library. Because the interstitial is running as an activity, I'm not able to raise an event in B4A when it is dismissed. Instead, you can check the status in Activity_Resume as shown in the code below.
A good practice would be to initialize the ad in Activity_Create, and then show the ad later when desired. This will allow the ad to fully load while other processes are taking place allowing you to show the ad immediately.
This is a beta version and the first library I've shared, so please report any problems.
NOTE: There is a bug in older versions of the SDK that causes a crash on some devices when you try to load the interstitial. Make sure you download an updated SDK from Admob.
1.1 Update: Fixed a bug in the library code used to raise the AdFailedToLoad event. Separated out the LoadAd routine from the Initialize routine. This allows you to load a new ad after an ad has been dismissed without re-initializing the class.
The new library should be compatible with your old code with the exception of a change to the AdFailedToReceive event. It should be declared in your app as follows.
B4X:
Sub mwadi_AdFailedToLoad (ErrorMessage As String)
Log("failed to load ad: " & ErrorMessage)
End SubThis new library also supports a new event that triggers when the user closes an ad. You can use this event to queue a new ad to load or run other code.
B4X:
Sub mwadi_AdClosed
mwAdInterstitial.LoadAd
End SubThe new library is called mwAdmobInterstitial2. I added the 2 to the end of the name so you can preserve your old library in case it is needed with other apps. The new library and example app for the library is attached at the end of this post.
============================================
Below is for the old version (not using Google Play Services)
============================================
I was able to put together a library to display interstitial ads from Admob. You'll need to create an interstitial ad unit in Admob and use it with the initialization process.
Make sure the following is added to your AndroidManifest.xml.
B4X:
AddApplicationText(<activity android:name="com.google.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>)Here is code from the included sample app that shows how to use the library. Because the interstitial is running as an activity, I'm not able to raise an event in B4A when it is dismissed. Instead, you can check the status in Activity_Resume as shown in the code below.
A good practice would be to initialize the ad in Activity_Create, and then show the ad later when desired. This will allow the ad to fully load while other processes are taking place allowing you to show the ad immediately.
This is a beta version and the first library I've shared, so please report any problems.
NOTE: There is a bug in older versions of the SDK that causes a crash on some devices when you try to load the interstitial. Make sure you download an updated SDK from Admob.
1.1 Update: Fixed a bug in the library code used to raise the AdFailedToLoad event. Separated out the LoadAd routine from the Initialize routine. This allows you to load a new ad after an ad has been dismissed without re-initializing the class.
B4X:
Sub Globals
'These global variables will be redeclared each time the activity is created.
'These variables can only be accessed from this module.
Dim mwAdInterstitial As mwAdmobInterstitial
Dim Button1 As Button
Dim Label2 As Label
End Sub
Sub Activity_Create(FirstTime As Boolean)
'Do not forget to load the layout file created with the visual designer. For example:
'Activity.LoadLayout("Layout1")
mwAdInterstitial.Initialize("mwadi","INSERT_YOUR_AD_UNIT_ID")
mwAdInterstitial.LoadAd
Activity.LoadLayout("1")
Label2.Text="Attempting to load ad... Please wait."
End Sub
Sub Activity_Resume
If mwAdInterstitial.Status=mwAdInterstitial.Status_Dismissed Then Label2.Text="Ad dismissed by user."
End Sub
Sub Activity_Pause (UserClosed As Boolean)
End Sub
Sub mwadi_AdLoaded
Log("ad loaded")
Label2.Text="Ad loaded - Click Show Ad to Display"
End Sub
Sub mwadi_AdFailedToLoad (ErrorCode As String)
Label2.Text="Ad failed to load with error code: " & ErrorCode
Log("failed to load ad: " & ErrorCode)
End Sub
Sub Button1_Click
If mwAdInterstitial.Status=mwAdInterstitial.Status_AdReadyToShow Then mwAdInterstitial.Show
If mwAdInterstitial.Status=mwAdInterstitial.Status_Dismissed Then
Label2.Text="Attempting to load ad... Please wait."
mwAdInterstitial.LoadAd
End If
End SubAttachments
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