struggling with device_power

[madru]

Hello folks,

I try to use the goToSleep method from the OSLibrary, but I always get this error:

main_button1_click (B4A line: 63)
OS.goToSleep(0)

java.lang.SecurityException: Neither user 10046 nor current process has android.permission.DEVICE_POWER.
   at android.os.Parcel.readException(Parcel.java:1327)
   at android.os.Parcel.readException(Parcel.java:1281)
   at android.os.IPowerManager$Stub$Proxy.goToSleep(IPowerManager.java:316)
   at android.os.PowerManager.goToSleep(PowerManager.java:456)
   at com.rootsoft.oslibrary.OSLibrary.goToSleep(OSLibrary.java:777)
   at aa.aa.aa.main._button1_click(main.java:273)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:145)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:133)
   at anywheresoftware.b4a.BA.raiseEvent(BA.java:129)
   at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:53)
   at android.view.View.performClick(View.java:3516)
   at android.view.View$PerformClick.run(View.java:14110)
   at android.os.Handler.handleCallback(Handler.java:605)
   at android.os.Handler.dispatchMessage(Handler.java:92)
   at android.os.Looper.loop(Looper.java:137)
   at android.app.ActivityThread.main(ActivityThread.java:4429)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
   at dalvik.system.NativeStart.main(Native Method)
java.lang.SecurityException: Neither user 10046 nor current process has android.permission.DEVICE_POWER.
Flushing caches (mode 0)

the code lines I used:

Dim OS As OperatingSystem

Sub Button1_Click
  OS.goToSleep(0)
End Sub

and the manifest entry:

AddPermission(android.permission.DEVICE_POWER)

any idea whats missing?

THX

M

 

[Erel]

This permission is only granted to system processes. You will not be able to use it (at least on unrooted devices).

 

[madru]

THX Erel,

any other possibility to 'sleep' a device?

 

[Erel]

Not that I know of.