Android Question Device Owner / TaskLock - GetApplicationIntent after Locking terminal

M

mmanso

Active Member
Licensed User
Longtime User
Hi There,

I've created an application that will work on kiosks following this guide:

Device Owner / TaskLock / Kiosk apps 2017

Starting from Android 5 (API 21) there is better support for kiosk applications. Kiosk applications = applications that the user cannot exit from. As you can see in this screenshot, the home button and recent apps button are missing. The top notifications drawer is also inaccessible. This...
www.b4x.com

The application has a screen with two buttons:

  • Lock
  • Start API Server
On the start API Server, I've this code:

B4X: 
    Dim pm As PackageManager
    Dim in As Intent
    in = pm.GetApplicationIntent("org.myapp.api")

    If in.IsInitialized Then
        StartActivity(in)
    End If

What's happening is that after I press the Lock button (and Android gets locked, no back buttons, no close application) I can't start the other application I also need to start.

Isn't this possible? Opening an application after the device has been Pinned?

Thanks in advance.
 
Sort by date Sort by votes

coderpenguen

New Member
I have completed all the methods but there is a problem. I have been working on this problem for 3 days. I may not have understood the working logic.
When I click the app lock button it gives this error. Please help.



B4X: 
AddApplicationText(<receiver android:name="anywheresoftware.b4a.objects.AdminReceiver2"
  android:permission="android.permission.BIND_DEVICE_ADMIN">
  <meta-data android:name="android.app.device_admin"
  android:resource="@xml/device_admin" />
  <intent-filter>
  <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
  </intent-filter>
</receiver>)
CreateResource(xml, device_admin.xml,
<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
  <uses-policies>
  <limit-password />
  <reset-password />
  <force-lock />
  </uses-policies>
</device-admin>
)

ERROR

(AdminManager) anywheresoftware.b4a.objects.AdminManager@622cfe5
main_getmanager (java line: 443)
java.lang.RuntimeException: Field: dm not found in: anywheresoftware.b4a.objects.AdminManager
at anywheresoftware.b4j.object.JavaObject$FieldCache.getField(JavaObject.java:307)
at anywheresoftware.b4j.object.JavaObject.GetField(JavaObject.java:182)
at anywheresoftware.b4j.object.JavaObject.GetFieldJO(JavaObject.java:189)
at kiosk.otokiosk.main._getmanager(main.java:443)
at kiosk.otokiosk.main._btnlock_click(main.java:385)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:197)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:80)
at android.view.View.performClick(View.java:8160)
at android.widget.TextView.performClick(TextView.java:16222)
at android.view.View.performClickInternal(View.java:8137)
at android.view.View.access$3700(View.java:888)
at android.view.View$PerformClick.run(View.java:30236)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8633)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
 
Upvote 0
You must log in or register to reply here.

Similar Threads

  • Question
Android Question MANAGE_DEVICE_POLICY_LOCK_TASK PROBLEM
Replies
2
Views
155
mr.kucuk
  • Question
Android Question [Solved] Problem after SDK update
Replies
2
Views
1K
udg
P
  • Question
Android Question Device admin deprecation Kiosk Device Owner
Replies
5
Views
3K
Philip Prins
P
  • Question
Android Question app not closing
Replies
3
Views
3K
DonManfred
  • Question
Android Question Unable to start another app when Kiosk is Locked
Replies
2
Views
3K
jareal
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…