How to limit iOS keyboard to numeric input

The question 开发者_高级运维pretty much says it all. Is there any way to have the iOS/iPhone keyboard default to numeric input?

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Set the keyboardType property of the UITextField to UIKeyboardTypeDecimalPad.

Swift 3

yourUITextField.keyboardType = .decimalPad

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Objective-C:

Default to Numbers (but include - and . if you need to allow decimal or negative numbers):

myTextField1.keyboardType=UIKeyboardTypeNumbersAndPunctuation;

Default to Numbers (#s only for integer values)

myTextField1.keyboardType=UIKeyboardTypeNumberPad;