IQKeyboardManagerSwift + pickerview in swift/ios

hello, i installed IQKeyboarManager swift in my IOS project but still i see that the arrows in my textfields of the register file dont work well. I also added a pickerview and data appears in picker but when i select a row in the pickerview on my app, the data appears not in the textfield. Can someone check both please? A code is done, should be small problems