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标题: ios - 更改默认光标图标 UITextView iOS？ [打印本页]

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作者: 菜鸟教程小白    时间: 2022-12-12 10:30
标题: ios - 更改默认光标图标 UITextView iOS？

我需要更改 UITextView 的默认光标图标。我想将其更改为圆形图标而不是线条，如下所示。任何帮助表示赞赏。提前致谢。

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Best Answer-推荐答案

无法更改 textView 的原始插入符号。

您应该制作一个自定义的。为此，创建一个 UITextView 的子类:

@interface CustomTextView()

@property (strong, nonatomic) UIImageView *caretImageView;

@end

@implementation CustomTextView

- (void)awakeFromNib
{
    [super awakeFromNib];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selectorselector(textDidChange
                                                 name:UITextViewTextDidChangeNotification
                                               object:self];

    self.caretImageView = // create and customize your caret view
    //...

    [self addSubview:self.caretImageView];

    // Make careImageView to blink every 0.5 secs
    [NSTimer scheduledTimerWithTimeInterval:0.5
                                     target:self
                                   selectorselector(blink)
                                   userInfo:nil
                                    repeats:YES];
}

- (void)blink
{
    self.caretImageView.alpha = !(BOOL)self.caretImageView.alpha;
}

// Hiding original caret
- (CGRect)caretRectForPositionUITextPosition *)position
{
    return CGRectZero;
}

// Repositioning caretImageView everytime when text did change
- (void)textDidChangeNSNotification *)note
{
    CGPoint endPoint = // calculate the x and y coords of the text's end.

    CGRect frame = self.caretImageView.frame;
    frame.origin = endPoint;
    self.caretImageView.frame = frame;
}


//
- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UITextViewTextDidChangeNotification object:nil];
}

@end

关于ios - 更改默认光标图标 UITextView iOS？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24364941/

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