Change UITextField and UITextView Cursor / Caret C

问题:

I'm wondering about changing the color of the cursor / caret in a UITextField (And UITextView if its the same answer) in iOS. I've seen answers for OSX development, but nothing for iOS.

Is this even possible?

回答1:

If you're targeting iOS 7+, this has been made much easier. Simply change the tintColor of the field with a cursor using the appearance proxy and it will apply throughout the app:

Swift 3.0:

UITextField.appearance().tintColor = .black 

Objective-C:

[[UITextField appearance] setTintColor:[UIColor blackColor]];

Same answer applies for an individual UITextView:

Swift 3.0:

myTextField.tintColor = .black 

Objective-C

[myTextField setTintColor:[UIColor blackColor]];

回答2:

With iOS7 you can simply change tintColor of the textField

回答3:

Swift 3:

  UITextField.appearance().tintColor = UIColor.black
  UITextView.appearance().tintColor = UIColor.black

回答4:

Note: This answer is out of date and should be used for pre-iOS 7 development only. See other answers for a 1 line solution using the appearance proxy in iOS 7.

I arrived at this question after I faced the same problem in a project I was working on.

I managed to create a solution that will be accepted by the AppStore review team as it does not use any existing Private APIs.

I have created a control called DGTextField that extends UITextField.

回答5:

yourTextField.tintColor = [UIColor whiteColor];

It works if you set it in code, 'cos somehow color trigger doesn't do it in the Interface Builder (Xcode 6.1.1). It suited well without a need to change any appearance proxy.

回答6:

This worked for me in swift:

UITextField.tintColor = UIColor.blackColor()

You can also set this in storyboard: https://stackoverflow.com/a/18759577/3075340

回答7:

A more general approach would be to set the UIView's appearance's tintColor.

UIColor *myColor = [UIColor purpleColor];
[[UIView appearance] setTintColor:myColor];

Makes sense if you're using many default UI elements.

回答8:

Setting tintColor for UITextField and UITextView works differently. While for UITextField you don't need to call additional code after updating tintColor to change cursor color, but for UITextView you need.

So after setting tintColor for UITextView (it doesn't matter in IB or in code) you need to call textView.tintColorDidChange() in order to apply it (actually it will pass text view's config down to its subviews hierarchy).

回答9:

It is only possible by accessing a private property and therefore may cause an Apple AppStore app rejection.

take a look at this Stackoverflow question

回答10:

Try, Its working for me.

[[self.textField valueForKey:@"textInputTraits"] setValue:[UIColor redColor] strong textforKey:@"insertionPointColor"];

回答11:

Durgesh's approach does work.

I also used such KVC solutions many times. Despite it seems to be undocumented, but it works. Frankly, you don't use any private methods here - only Key-Value Coding which is legal.

P.S. Yesterday my new app appeared at AppStore without any problems with this approach. And it is not the first case when I use KVC in changing some read-only properties (like navigatonBar) or private ivars.

回答12:

For Interface Builder version with Swift

@IBOutlet weak var tvValue: UITextView! {
        didSet {
            tvValue.tintColor = .black
        }
    }

回答13:

If the UITextField is from UISearchBar then first get the textField from searchBar and then apply tintColor property:

let textFieldInsideSearchBar = searchBar.value(forKey: "searchField") as? UITextField
textFieldInsideSearchBar?.tintColor = UIColor.lightGray