'UIAutomatorViewer in appium automation not recognizing the keypad keys and the tickmark button on it

I want to select alphabets, numbers and the tick mark from mobile keypad . User name and password is identified by uiautomatorview in the login page, but the alphabets, numbers and the tick mark on the keypad is not getting recognized.

Please find the attached image, where these are all not recognized.

please let me know as how to recognize/access these objects through uiautomatorviewer or any workaround this?

Login Page Keypad



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