Mouse problems when connecting a mouse to a phone

I connected my mouse and keyboard to my phone the keyboard worked perfectly but when I wanted to scroll throgh my world using the mouse scroll wheel it did not work I had to left klick and scroll like I was using my finger when I went to a world the mouse was not connected to the crossair I had to left klick to turn my screen and when I right kilcked it would send me to the screen that you could save and quit on also the scroll wheel wont change the item that your holding.

How to produce: Just get a usb connector for your phone and connect it to a mouse then try playing Minecraft with it.