UILabel UITextField UITextView

What's the开发者_StackOverflow中文版 fundamental difference between them?

Is a UITextField that's not editable is effectively a UILabel?

Are those essentially the same?

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• UILabel: "The UILabel class implements a read-only text view."
• UITextField: "A UITextField object is a control that displays editable text and sends an action message to a target object when the user presses the return button."
• UITextView: "The UITextView class implements the behavior for a scrollable, multiline text region."

So:

• labels are read-only
• textfields are editable, and provide horizontal character seeking (not really scrolling) when the text is too long to display all at once. Generally used to input short text.
• textviews are also editable, but provide vertical scrolling when the text is too long to display all at one.

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In addition to the above answers, UITextView has selectable text. This means that you can copy it or get the device to speak the text.

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• UILabel - used for static text rendering,
• UITextField - is an input field,
• UITextView - is a multiline input field

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Finally Apple have covered this part in this amazing talk:

https://developer.apple.com/videos/play/wwdc2018/221/

The key takeways is as followed:

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Also in addition to this: Only with UILabel you can get the Auto shrink feature, otherwise you should implement that (if needed)