B4A Library Physical Activity Recognition Detection

Class updated on May 2023.

This class allows you to monitor the user / device physical state (walking, running, still, etc.).

The state detection is based on Android location services which use low power sensors to try to detect the current activity. Once you connect your app to these services you will receive notifications even when your app is in the background (similar to static intent filters).

Configuration steps:
1. Add this line to the main activity:

#AdditionalJar: com.google.android.gms:play-services-location

2. Add to manifest editor:

CreateResourceFromFile(Macro, FirebaseAnalytics.GooglePlayBase)
AddPermission(com.google.android.gms.permission.ACTIVITY_RECOGNITION)
AddPermission(android.permission.ACTIVITY_RECOGNITION)

3. Add a receiver named RecognitionReceiver that handles the events.
See the attached example.


Notes

- Android may kill the process and then recreate it when a notification is delivered. This means that it is better to run the app in Release mode. Otherwise it will fail when the process is recreated.

History

V4.00 - Based on receiver instead of service.
V3.00 - Released as a class instead of a library. It is based on a new Google API. Not backward compatible.

 

[rboeck]

Hi, i have exactly the same error message then K Y Leng; i use B4A 4.3, target SdkVersion 24, Google Play Services 22, on the device Google Play 6.7.76; i tested on a Sony Tablet Z2 and Sony Xperia Z1 compact.

Update: It works with V2.00!

 

[Erel]

Seems like they removed the class: http://stackoverflow.com/questions/...found-after-update-of-play-services-to-6-5-87

This library will not work with the latest version of Google Play Services.

 

[Erel]

V2.00 has been released. This version is compatible with the recent versions of Google Play Services.

 

[jotaele]

Its posible that isn't compatible with the latest?

main_button1_click (java line: 662)
java.lang.IncompatibleClassChangeError: The method 'void com.google.android.gms.common.api.GoogleApiClient.connect()' was expected to be of type interface but instead was found to be of type virtual (declaration of 'java.lang.reflect.ArtMethod' appears in /system/framework/core-libart.jar)
   at anywheresoftware.b4a.objects.ActivityRecognition.Connect(ActivityRecognition.java:64)
   at com.just4meet.main._button1_click(main.java:662)
   at java.lang.reflect.Method.invoke(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:187)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
   at anywheresoftware.b4a.BA.raiseEvent(BA.java:171)
   at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:78)
   at android.view.View.performClick(View.java:4808)
   at android.view.View$PerformClick.run(View.java:19918)
   at android.os.Handler.handleCallback(Handler.java:739)
   at android.os.Handler.dispatchMessage(Handler.java:95)
   at android.os.Looper.loop(Looper.java:135)
   at android.app.ActivityThread.main(ActivityThread.java:5536)
   at java.lang.reflect.Method.invoke(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1397)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1192)

V2.00 has been released. This version is compatible with the recent versions of Google Play Services.

 

[Erel]

What is the version of Google Play Services? I've tested it with v26 and it works fine.

 

[jotaele]

Mine is the latest: v27 (September 2015)

I think that google changes a lot of classes in this version.

https://developers.google.com/android/guides/releases

What is the version of Google Play Services? I've tested it with v26 and it works fine.

 

[carloz]

aaargghhh !!! again !! Erel plz plz ..can we get a update for this library

 

[Erel]

Quite amazing...

I've updated the first post with v2.10. It is compatible with v27.

 

[carloz]

you are a gem !!! thnx erel

 

[hookshy]

I got this errror do not understand were I am doing wrong ?

C:\android\extras\google\google_play_services\libproject\google-play-services_lib\res\values-v21\appinvite_styles.xml:5: error: Error retrieving parent for item: No resource found that matches the given name '@android:style/Theme.Material.Light.DialogWhenLarge.NoActionBar'.

 

[Erel]

Use a more recent version of android.jar (under Tools - Configure paths).

 

[hookshy]

Use a more recent version of android.jar (under Tools - Configure paths).

changed to android 23 ,the app is downloaded but it crashes
Now, other error is bugging me ...I have android.v4 copied to my lib folders
updated build tools from android sdk manager and I am running google play services v27
I have also copied google play services to my lib folders


Installing file.
** Activity (main) Pause, UserClosed = false **
PackageAdded: package:b4a.example
** Activity (main) Create, isFirst = true **
java.lang.NoClassDefFoundError: android.support.v4.util.ArrayMap
at com.google.android.gms.common.api.GoogleApiClient$Builder.<init>(Unknown Source)
at anywheresoftware.b4a.objects.ActivityRecognition.Initialize(ActivityRecognition.java:46)
at b4a.example.main._activity_create(main.java:351)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:187)
at b4a.example.main.afterFirstLayout(main.java:100)
at b4a.example.main.access$100(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:78)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5473)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:854)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **

 

[Erel]

Use 7zip to open android-support-v4.jar (the one that is in the additional libraries folder).

Do you see the ArrayMap file:

 

[hookshy]

Do you see the ArrayMap file:

I have this array.map class in util folder ...the android-suport-v4.jar is copied to aditional libraries
I have deleted suport folder with skd manager and installed again ..then copied again the lib to aditional libraries

 

[Erel]

I have deleted suport folder with skd manager and installed again ..then copied again the lib to aditional libraries

Do you still get the same error? Which version of B4A are you using?

 

[hookshy]

Do you still get the same error? Which version of B4A are you using?

I will upgrade ..I think this is the problem ...I use version 4.30

I have updated b4a to ver5.2 , still have the same problem...can you test my project ?
https://www.dropbox.com/s/bprw113m3049thw/lowpowersensor.rar?dl=0

 

[Erel]

Please create a small project with only this feature and upload it to the forum.

 

[brunnlechner]

Hallo,
i tried the Activity Recognition Example with Activity Recognition V2.1 and google-play-services 29
The app crashes:

Thank You
Franz

LogCat connected to: B4A-Bridge: motorola Moto G 2014
--------- beginning of main
Connected to B4A-Bridge (Wifi)
** Activity (main) Resume **
Installing file.
** Activity (main) Pause, UserClosed = false **
PackageAdded: package:njdude.activityrecognition.sample
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
sending message to waiting queue (CallSubDelayed - UpdateStatus)
Connected to B4A-Bridge (Wifi)
sending message to waiting queue (CallSubDelayed - UpdateStatus)
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
main_process_globals (java line: 530)
java.lang.NoClassDefFoundError: anywheresoftware.b4a.objects.ActivityRecognition
at njdude.activityrecognition.sample.main._process_globals(main.java:530)
at njdude.activityrecognition.sample.main.initializeProcessGlobals(main.java:520)
at njdude.activityrecognition.sample.main.afterFirstLayout(main.java:98)
at njdude.activityrecognition.sample.main.access$000(main.java:17)
at njdude.activityrecognition.sample.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
** Activity (main) Create, isFirst = true **
main_activity_create (B4A line: 44)
ar.Initialize("ar")
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;
at com.google.android.gms.common.api.GoogleApiClient$Builder.<init>(Unknown Source)
at anywheresoftware.b4a.objects.ActivityRecognition.Initialize(ActivityRecognition.java:46)
at njdude.activityrecognition.sample.main._activity_create(main.java:355)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
at njdude.activityrecognition.sample.main.afterFirstLayout(main.java:102)
at njdude.activityrecognition.sample.main.access$000(main.java:17)
at njdude.activityrecognition.sample.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.ArrayMap" on path: DexPathList[[zip file "/data/app/njdude.activityrecognition.sample-2/base.apk"],nativeLibraryDirectories=[/data/app/njdude.activityrecognition.sample-2/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
... 15 more
Suppressed: java.lang.ClassNotFoundException: android.support.v4.util.ArrayMap
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 16 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
Installing file.
Installing file.
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
** Activity (main) Create, isFirst = true **
main_activity_create (B4A line: 44)
ar.Initialize("ar")
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;
at com.google.android.gms.common.api.GoogleApiClient$Builder.<init>(Unknown Source)
at anywheresoftware.b4a.objects.ActivityRecognition.Initialize(ActivityRecognition.java:46)
at njdude.activityrecognition.sample.main._activity_create(main.java:355)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
at njdude.activityrecognition.sample.main.afterFirstLayout(main.java:102)
at njdude.activityrecognition.sample.main.access$000(main.java:17)
at njdude.activityrecognition.sample.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.ArrayMap" on path: DexPathList[[zip file "/data/app/njdude.activityrecognition.sample-2/base.apk"],nativeLibraryDirectories=[/data/app/njdude.activityrecognition.sample-2/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
... 15 more
Suppressed: java.lang.ClassNotFoundException: android.support.v4.util.ArrayMap
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 16 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
Installing file.
PackageAdded: package:njdude.activityrecognition.sample
** Activity (main) Create, isFirst = true **
main_activity_create (B4A line: 44)
ar.Initialize("ar")
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;
at com.google.android.gms.common.api.GoogleApiClient$Builder.<init>(Unknown Source)
at anywheresoftware.b4a.objects.ActivityRecognition.Initialize(ActivityRecognition.java:46)
at njdude.activityrecognition.sample.main._activity_create(main.java:355)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
at njdude.activityrecognition.sample.main.afterFirstLayout(main.java:102)
at njdude.activityrecognition.sample.main.access$000(main.java:17)
at njdude.activityrecognition.sample.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.ArrayMap" on path: DexPathList[[zip file "/data/app/njdude.activityrecognition.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/njdude.activityrecognition.sample-1/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
... 15 more
Suppressed: java.lang.ClassNotFoundException: android.support.v4.util.ArrayMap
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 16 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
running waiting messages (2)
** Activity (main) Resume **
Installing file.
** Activity (main) Pause, UserClosed = false **
PackageAdded: package:njdude.activityrecognition.sample
** Activity (main) Create, isFirst = true **
main_activity_create (B4A line: 44)
ar.Initialize("ar")
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;
at com.google.android.gms.common.api.GoogleApiClient$Builder.<init>(Unknown Source)
at anywheresoftware.b4a.objects.ActivityRecognition.Initialize(ActivityRecognition.java:46)
at njdude.activityrecognition.sample.main._activity_create(main.java:355)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
at njdude.activityrecognition.sample.main.afterFirstLayout(main.java:102)
at njdude.activityrecognition.sample.main.access$000(main.java:17)
at njdude.activityrecognition.sample.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.ArrayMap" on path: DexPathList[[zip file "/data/app/njdude.activityrecognition.sample-2/base.apk"],nativeLibraryDirectories=[/data/app/njdude.activityrecognition.sample-2/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
... 15 more
Suppressed: java.lang.ClassNotFoundException: android.support.v4.util.ArrayMap
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 16 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (main) Create, isFirst = false **
** Activity (main) Resume **

 

[Erel]

Download android-support-v4.jar from Android SDK, copy it to the additional libraries folder and add: #AdditionalJar: android-support-v4

 

[brunnlechner]

Thanks, it worked perfectly.
The sample-app apk has by google-play services_lib\res folder almost 3 MB.
Must I use the entire folder google-play services_lib \ res?

Thank You
Franz