//初始化textfield并设置位置及大小less
UITextField *text = [[UITextField alloc]initWithFrame:CGRectMake(20, 20, 130, 30)];
//设置边框样式,只有设置了才会显示边框样式 字体
text.borderStyle = UITextBorderStyleRoundedRect; typedef enum { UITextBorderStyleNone, UITextBorderStyleLine, UITextBorderStyleBezel, UITextBorderStyleRoundedRect } UITextBorderStyle;
//设置输入框的背景颜色,此时设置为白色 若是使用了自定义的背景图片边框会被忽略掉 优化
text.backgroundColor = [UIColor whiteColor];
//设置背景spa
text.background = [UIImage imageNamed:@"dd.png"];
//设置背景 3d
text.disabledBackground = [UIImage imageNamed:@"cc.png"];
//当输入框没有内容时,水印(占位符)提示 提示内容为password代理
text.placeholder = @"password";
//设置水印字的颜色,水印的字体颜色默认为灰色。如下代码是给水印字体改颜色。code
[text setValue:[UIColor whiteColor] forKeyPath:@"_placeholderLabel.textColor"];
//设置输入框内容的字体样式和大小orm
text.font = [UIFont fontWithName:@"Arial" size:20.0f];
//设置字体颜色继承
text.textColor = [UIColor redColor];
//输入框中是否有个叉号,在何时显示,用于一次性删除输入框中的内容图片
text.clearButtonMode = UITextFieldViewModeAlways; typedef enum { UITextFieldViewModeNever, 重不出现 UITextFieldViewModeWhileEditing, 编辑时出现 UITextFieldViewModeUnlessEditing, 除了编辑外都出现 UITextFieldViewModeAlways 一直出现 } UITextFieldViewMode;
//每输入一个字符就变成点 用语密码输入
text.secureTextEntry = YES;
//是否纠错
text.autocorrectionType = UITextAutocorrectionTypeNo; typedef enum { UITextAutocorrectionTypeDefault, 默认 UITextAutocorrectionTypeNo, 不自动纠错 UITextAutocorrectionTypeYes, 自动纠错 } UITextAutocorrectionType;
//再次编辑就清空
text.clearsOnBeginEditing = YES;
//内容对齐方式
text.textAlignment = UITextAlignmentLeft;
//内容的垂直对齐方式 UITextField继承自UIControl,此类中有一个属性contentVerticalAlignment
text.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
//设置为YES时文本会自动缩小以适应文本窗口大小.默认是保持原来大小,而让长文本滚动
textFied.adjustsFontSizeToFitWidth = YES;
//设置自动缩小显示的最小字体大小
text.minimumFontSize = 20;
//设置键盘的样式
text.keyboardType = UIKeyboardTypeNumberPad; typedef enum { UIKeyboardTypeDefault, 默认键盘,支持全部字符 UIKeyboardTypeASCIICapable, 支持ASCII的默认键盘 UIKeyboardTypeNumbersAndPunctuation, 标准电话键盘,支持+*#字符 UIKeyboardTypeURL, URL键盘,支持.com按钮 只支持URL字符 UIKeyboardTypeNumberPad, 数字键盘 UIKeyboardTypePhonePad, 电话键盘 UIKeyboardTypeNamePhonePad, 电话键盘,也支持输入人名 UIKeyboardTypeEmailAddress, 用于输入电子 邮件地址的键盘 UIKeyboardTypeDecimalPad, 数字键盘 有数字和小数点 UIKeyboardTypeTwitter, 优化的键盘,方便输入@、#字符 UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, } UIKeyboardType;
//return键变成什么键
text.returnKeyType =UIReturnKeyDone; typedef enum { UIReturnKeyDefault, 默认 灰色按钮,标有Return UIReturnKeyGo, 标有Go的蓝色按钮 UIReturnKeyGoogle,标有Google的蓝色按钮,用语搜索 UIReturnKeyJoin,标有Join的蓝色按钮 UIReturnKeyNext,标有Next的蓝色按钮 UIReturnKeyRoute,标有Route的蓝色按钮 UIReturnKeySearch,标有Search的蓝色按钮 UIReturnKeySend,标有Send的蓝色按钮 UIReturnKeyYahoo,标有Yahoo的蓝色按钮 UIReturnKeyYahoo,标有Yahoo的蓝色按钮 UIReturnKeyEmergencyCall, 紧急呼叫按钮 } UIReturnKeyType;
//键盘外观
textView.keyboardAppearance=UIKeyboardAppearanceDefault; typedef enum { UIKeyboardAppearanceDefault, 默认外观,浅灰色 UIKeyboardAppearanceAlert, 深灰 石墨色 } UIReturnKeyType;
//设置代理 用于实现协议
text.delegate = self;
//把textfield加到视图中
[self.window addSubview:text];
//最右侧加图片是如下代码 左侧相似
UIImageView *image=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"right.png"]]; text.rightView=image; text.rightViewMode = UITextFieldViewModeAlways; typedef enum { UITextFieldViewModeNever, UITextFieldViewModeWhileEditing, UITextFieldViewModeUnlessEditing, UITextFieldViewModeAlways } UITextFieldViewMode;
//按return键键盘往下收 becomeFirstResponder
类要采用UITextFieldDelegate协议
text.delegate = self; 声明text的代理是我,我会去实现把键盘往下收的方法 这个方法在UITextFieldDelegate里因此咱们要采用UITextFieldDelegate这个协议
//点击其余任何地方键盘往下收[text resignFirstResponder](输入框里面除外);
- (BOOL)textFieldShouldReturn:(UITextField *)textField { [text resignFirstResponder]; //主要是[receiver resignFirstResponder]在哪调用就能把receiver对应的键盘往下收 return YES; }
//限制文本输入的长度
[_AppView.AppoAgain addTarget:self action:@selector(AppoAgaintextFieldDidChange) forControlEvents:UIControlEventEditingChanged]; //在监听的方法里截取他的长度就OK了。我这里是截取10的长度(只能输入10位) -(void)AppoAgaintextFieldDidChange{ if(_AppView.AppoAgain.text.length >= 10){ NSString *textStr = _AppView.AppoAgain.text; _AppView.AppoAgain.text = [textStr substringToIndex:10]; } }