Sam Shaikh questions

• java.lang.IllegalArgumentException: Unable to create call adapter for interface retrofit.Call
• Cannot convert return expression of type 'PrimitiveSequence<SingleTrait, String>' to return type 'Observable<String>'
• Type 'Int32' does not conform to protocol 'AnyObject' Swift?
• What method of AppDelegate will be called after entering into Suspended state?
• How to change UISwitch default color for OFF state?
• How to convert Int to Double in Swift playground?
• How to convert Delegate to Observable RxSwift?
• What is reason of Warning "Pointer is missing a nullability type specifier"?
• Android Button Border Color
• start and end angle of UIBezierPath?

Sam Shaikh answers