Getting variable from supplier makes clear page

I am attempting to make a straightforward application to check bluetooth and gadget… I began making a tabs principle application then an injectable supplier where I could oversee bluetooth association and gadgets through all tabs.

Beginning to check if my very own supplier works I played simply demonstrating a basic variable on a particle input field utilized as a name yet when I aggregate and run the application on my cell phone it indicates add up to clear page in the event that I allot supplier’s variable to the particle input when it shouldn’t.