Android Question controlling device password attempts

[azzam223]

hello
how i can make my app to capture end user after enter device wrong password 2 times

i want my app to linked with device password to how many user enter wrong password

 

[Erel]

Check this library: https://www.b4x.com/android/forum/threads/device-administrator-library.19208/#content

 

[azzam223]

when i try to start capture with camera when the screen lock i get this message

(Exception) java.lang.Exception:  java.lang.RuntimeException: takePicture failed

 

[Erel]

I don't see any relation between the last two posts and the question in the first post.

 

[azzam223]

i am very sorry erel for that i want to know how to fix takePicture problem in last post please

 

[Erel]

I now understand. I'm not sure that you will be able to accomplish it. I don't see any event that is raised when the user fails to log-in.

About the camera, you do need to start an activity. Use this to show it above the lock screen: https://www.b4x.com/android/forum/threads/unlock-password-locked-screen.14870/post-84636
You can start an activity, take a picture and then close it.

 

[azzam223]

i did what you say show the activity above the screen lock but the camera also failed to capture is there any permission prevent the camera to capture

 

[Erel]

Not enough information for us to help you.

 

[azzam223]

I mean, I showed the activity above the screen lock, but when I pressed the capture button, i get also same message

(Exception) java.lang.Exception:  java.lang.RuntimeException: takePicture failed

 

[Alex_197]

hello
how i can make my app to capture end user after enter device wrong password 2 times

i want my app to linked with device password to how many user enter wrong password

what if you use a counter and if count>2 then ...?

If user entered credentials he must click on a button? Right? So when he click the button we have event.

 

[azzam223]

what if you use a counter and if count>2 then ...?

If user entered credentials he must click on a button? Right? So when he click the button we have event.

hi alex i don't want a counter the counter is easy but i want to know how to capture camera when the activity above screen lock

because when i try to capture the camera the capture failed