iOS中UITextView方法解读 常用属性解读: @property(nonatomic,assign) id<UITextViewDelegate> delegate; 设置代理属性 @property *inputAccessoryView; 设置成为第一响应时弹出的副视图,副键盘视图 @property(nonatomic) BOOL clearsOnInsertion; 设置是否显示删除按钮 UITextViewDelegate
resignFirstResponder]; 4 //[self.view endEditing:YES]; 5 return YES; 6 } 对于UITextView,相应的UITextViewDelegate 但是,我们可以根据UITextViewDelegate提供的方法对键盘输入的值进行判断,如果为回车键(\n)则设置当前UITextView不是第一响应者,否则不操作。 设置回车键的类型和代理,当前类是继承自UITextView的一个类 2 self.delegate = self ; 3 self.returnKeyType = UIReturnKeyDone ; //UITextViewDelegate
一 文本框输入完整的响应过程 首先,我们要对UITextField和UITextView的输入输出进行控制,需要借助其对应的代理协议UITextFieldDelegate或UITextViewDelegate 当用户点击【clear/清除】按键时调用 textFieldShouldClear: 方法清除内容,当用户点击【return/完成】按键时调用 textFieldShouldReturn: 方法,注意:UITextViewDelegate 如果需要进行控制,我们知道其实在弹出之前是调用了UITextFieldDelegate或UITextViewDelegate的以下方法来控制是否使当前文本框设置为第一响应者( becoming the
"ViewController.h" #import <ReactiveObjC.h> #import <objc/runtime.h> @interface ViewController ()<UITextViewDelegate viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // 以UITextViewDelegate RACDelegateProxy RACDelegateProxy *delegateProxy = [[RACDelegateProxy alloc] initWithProtocol:@protocol(UITextViewDelegate greenColor]; // 设置代理为我们创建的RACDelegateProxy, 注意要转义不然会有警告 textView.delegate = (id<UITextViewDelegate _cmd); if (proxy == nil) { proxy = [[RACDelegateProxy alloc] initWithProtocol:@protocol(UITextViewDelegate
textView.textColor = [UIColor grayColor]; textView.delegate = self; [self.view addSubview:textView]; #pragma mark - UITextViewDelegate #import "WSViewController.h" @interface WSViewController () <UITextViewDelegate> @property(nonatomic placeHolder.contentMode = UIViewContentModeTop; [self.textView addSubview:placeHolder]; } #pragma mark - UITextViewDelegate UITextView的文本改变的代理方法 #import "ViewController.h" #import "WSTextView.h" @interface ViewController ()<UITextViewDelegate NSAttributedString alloc] initWithString:@"富文本"]; // self.textView = textView; } #pragma mark - UITextViewDelegate
///别忘在 .h 中写代理 <UITextViewDelegate> ///UILabel 显示的文本只读,无法编辑,可以根据文字个数自动换行; ///UITextField 可编辑本文,但是无法换行
实现效果: textview 能够跟随键盘的移动而移动 效果图如下: 下边贴上主要的代码: 1.创建textview @interface ViewController ()<UITextViewDelegate
实现 UITextViewDelegate 协议 : @interface OCViewController : UIViewController <UITextViewDelegate> -- 实现 UITextViewDelegate 协议方法 : - (void) textViewDidBeginEditing:(UITextView *)textView{ //开始编辑是显示导航条按钮 All rights reserved. // #import <UIKit/UIKit.h> @interface OCViewController : UIViewController <UITextViewDelegate All rights reserved. // #import <UIKit/UIKit.h> @interface OCViewController : UIViewController <UITextViewDelegate All rights reserved. // #import <UIKit/UIKit.h> @interface OCViewController : UIViewController <UITextViewDelegate
attributedString view.addSubview(textView) 然后在代理方法里截获URL,并根据项目需求进行相应的处理: extension MOAttributedStringVC: UITextViewDelegate
UIViewController<UITableViewDataSource, UITableViewDelegate, XLFormDescriptorDelegate, UITextFieldDelegate, UITextViewDelegate
uiView.contentSize.height } } } class Coordinator: NSObject, UITextViewDelegate
, strong, nullable) YBInputControlProfile *yb_inputCP; @end @interface UITextView (YBInputControl) <UITextViewDelegate 看@protocol UITextViewDelegate <NSObject, UIScrollViewDelegate>可见,UITextViewDelegate代理有着父代理,里面包含了大量需要处理的代理方法
当我们文字多到一定行数,宽度会保持不变,文本框可以进行内容滑动,如果不用autolayout,这个功能会比较棘手一些,但是使用它,会发现这是如此的容易: @interface ViewController ()<UITextViewDelegate
看下这个聊天页面: @interface ChattingViewController () <UITableViewDataSource, UITableViewDelegate, UITextViewDelegate
当用户点击【clear/清除】按键时调用 textFieldShouldClear: 方法清除内容,当用户点击【return/完成】按键时调用 textFieldShouldReturn: 方法,注意:UITextViewDelegate
s.height : defaultHeight; return 1 + height; } #pragma mark - UITextViewDelegate - (BOOL)textView
24 //录音取消的回调 25 typedef void (^CancelRecordBlock)(int flag); 26 27 28 @interface ToolView : UIView<UITextViewDelegate