无法在 UITextView 中显示 select 文本

Question

我有一个 UITextView。然后我向 UITextView 添加了双击手势识别器。因此，当我在 UITextView 中双击时，我无法在 UITextView 中输入 select 文本。我如何才能 select 发短信并同时获得双击事件？提前致谢

这是我的代码：

UITapGestureRecognizer *doubleTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(respondToTapGesture:)];
    doubleTapRecognizer.numberOfTapsRequired = 2;
    [textMeaning addGestureRecognizer:doubleTapRecognizer];

Answer 1

如果添加手势 -> 事件 select 不可用

所以，你应该改变你的流程！

Answer 2

试试这个：

- (void)viewDidLoad
{
   [super viewDidLoad];
   // Do any additional setup after loading the view, typically from a nib.

   UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapped:)];
   [tap setNumberOfTapsRequired:2];
   [_txtVw addGestureRecognizer:tap];


}

-(void)tapped:(UITapGestureRecognizer *)recognizer
 { 

      UITextView *textView_New = (UITextView *)recognizer.view;
      CGPoint pos = [recognizer locationInView:textView_New];

      NSLog(@"Tap Gesture Coordinates: %.2f %.2f", pos.x, pos.y);

      UITextPosition *tapPos = [textView_New closestPositionToPoint:pos];

      UITextRange * word = [textView_New.tokenizer rangeEnclosingPosition:tapPos withGranularity:UITextGranularityWord inDirection:UITextLayoutDirectionRight];
     NSLog(@"WORD: %@", [textView_New textInRange:word]);

 }

Answer 3

在您当前的代码中试试这个：

.h文件

UITextField *txtField;

.m 文件

- (void)viewDidLoad {
    [super viewDidLoad];

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)];
    tapGesture.numberOfTapsRequired = 2;
    [txtField addGestureRecognizer:tapGesture];
}

- (void)handleTapGesture:(UITapGestureRecognizer *)sender {
    if (sender.state == UIGestureRecognizerStateRecognized) {
    // Perform your operation which you want to do
    }
}

Answer 4

- (void)viewDidLoad {
    [super viewDidLoad];

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)];
    tapGesture.numberOfTapsRequired = 2;
    [txtField addGestureRecognizer:tapGesture];
}

- (void)handleTapGesture:(UITapGestureRecognizer *)sender {
    if (sender.state == UIGestureRecognizerStateRecognized) {

  [self.titleField setSelectedTextRange:[self.titleField textRangeFromPosition:self.titleField.beginningOfDocument toPosition:self.titleField.endOfDocument]];

    }
}

试试这个

到select范围内的文本

int start = 2;
int end = 5;
UITextPosition *startPosition = [self positionFromPosition:self.beginningOfDocument offset:start];
UITextPosition *endPosition = [self positionFromPosition:self.beginningOfDocument offset:end];
UITextRange *selection = [self textRangeFromPosition:startPosition toPosition:endPosition];
self.selectedTextRange = selection;

Answer 5

我不希望用户能够更改文本，因此在 UITextView 的界面生成器中取消选择 "Editable"。将 UITextView 的委托设置为此 class !!!

然后使用

-(void)textViewDidChangeSelection:(UITextView *)textView{
[textView setSelectedTextRange:[textView textRangeFromPosition:textView.beginningOfDocument toPosition:textView.endOfDocument]]; }

无法在 UITextView 中显示 select 文本

Cannot select text in UITextView

ios

uitextview