uitextview | 易学教程

小总结

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本文目录 0.UIView常用的属性和操作 0_1.UIView常见的属性 0_2.UIView状态 0_3.UIView常用的方法 1.文本框UITextField和文本视图UITextView 1_1.文本框UITextField(几乎包含了iOS控件的所有的通用属性) 1_2.文本视图UITextView 1_3.键盘输入的处理程序 2.标签UILabel和按钮UIButton 2_1.标签UILabel 2_2.按钮UIButton 3.滑块UISlider、步进UIStepper和图像UIImageView 3_1.滑块UISlider 3_2.步进UIStepper 3_3.图像UIImageView 3_4.图片浏览器 4.开关控件UISwitch和分段控件UISegmentedControl 4_1.开关控件UISwitch 4_2.分段控件UISegmentedControl 4_3.图片排序 5.工具栏UIToolBar 5_1.工具栏UIToolBar的使用 5_2.UIBarButtonItem 说明：这个专题，是介绍了一些常用的普通空间的属性和使用，包括：UITextField、UITextView、UILabel、UIButton、UISlider、UIStepper、UIImageView、UISwitch、UISegmentedControl

Displaying PDF content in UITextView

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问题 MY apps deals with PDF.Here I want to display the PDF content in my app.I can display the contents in UIWebView.Is it possible to diaplay the PDF content in the UITextView..I have added PDF in my resource folder.... 回答1: Short answer no, you cannot display a PDF file inside a UITextView, this class is made to display text with format. Though you can add the UIWebView with the PDF as a subview to the UITextView. 来源： https://stackoverflow.com/questions/7467306/displaying-pdf-content-in

Creating a CGRect around a UITextView - Wrong Height

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问题 I am creating a dynamic column to the left of a UITextview that matches the height of each paragraph. For some reason I have a problem getting the correct height of the ranges. I am using: let test = textView.firstRect(for: models.first!.range) It’s a single line behind as you keep typing. Examples: 2 Lines 3 Lines Any ideas what’s wrong? 回答1: This is an example where the docs could use a little help... From https://developer.apple.com/documentation/uikit/uitextinput/1614570-firstrect: Return

Attributed UITextView doesn't work with Korean symbols

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问题 Attributed UITextView doesn't work with Korean symbols. Steps to reproduce: Add UITextView to the form. Use the following code: NSDictionary *attributes = @{ NSFontAttributeName:[UIFont fontWithName:@"HelveticaNeue" size:15], NSForegroundColorAttributeName:[UIColor blackColor]}; [textView setAttributes:attributes range:NSMakeRange(0, textView.text.length)]; Run the application, type any text on Korean (에서 보냄) and tap or press Enter. The Korean text will disappear or will be replaced by

小总结

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UITextview: Place focus on becomefirstresponder

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问题 I have a UITextView which becomes first responder by tapping. The code looks like this. UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(editTextRecognizerTabbed:)]; recognizer.delegate = self; recognizer.numberOfTapsRequired = 1; [self.textViewNotes addGestureRecognizer:recognizer]; - (void) editTextRecognizerTabbed:(UITapGestureRecognizer *) aRecognizer; { self.textViewNotes.dataDetectorTypes = UIDataDetectorTypeNone; self

iPhone UITextView leaves room for 2 lines at the bottom

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问题 When I start typing text in a default textView in my viewcontroller, it's not going to the bottom of the textfield. It leaves room for 2 more lines of text and then starts scrolling. I want it to start scrolling when I start going beyond the last line. I tried everything, and I don't know what I can do? Anyone any ideas? 回答1: as UITextView is a subclass of UIScrollView, look at UIScrollVIew's properties, like contentInset and others to see if they might be creating a gap between your frame

Limit number of lines in UITextView

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问题 I'm using UITextView in my application, i want user to enter maximum 5 lines of text, I've been spending a few days on google but still have no luck, can some one please help!! PS: Not limit number of characters but number of "LINES" I've tried finding number of lines and use this method textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text , return NO when limit is reached but the back space button doesn't work after limit reached. Thanks!

Word wrap detecting in UITextView

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问题 I am implementing a customized rich text editor by extending the UITextView. When user selects the text range and apples the 'highlighting' menu, the editor will draw a blue background for the selected text: - (CGRect)getRectAtRangePos:(NSInteger)pos { UITextPosition *beginning = self.beginningOfDocument; UITextPosition *start = [self positionFromPosition:beginning offset:pos]; CGRect rect = [self caretRectForPosition:start]; return [self convertRect:rect fromView:self.textInputView]; } -

Swift: How to continuously adapt a UICollectionViewCell height to a UITextView while writing in it?

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问题 Good afternoon. I've struggled with this "feature" for my iOS app for some hours now and I'm in need of some help. Question: How should I implement so that when a user types in the UITextView increases in size (only the bottom margin) and the cell increases its height to fit the UITextView dynamically meanwhile? I can't figure out how to tackle it. Research: After some searching I came upon Dynamically change cell's height while typing text, and reload the containing tableview for resize as