ios基础控件之UITextField常用方法汇总

文本控件（UITextField）继承了UIControl控件，所以作为活动控件使用！创建该控件有两种方法：一、拖控件。二、纯代码搞定。其实本质一样。不过还是建议采用纯代码，这样对控件的可定制性非常高。

textField=[[UItextField alloc]initWithFrame:CGRectMake(120.0f, 80.0f, 150.0f, 30.0f)];

[textField setBorderStyle:UITextBorderStyleRoundedRect];//外框类型

textField.placeholder=@”请输入:”;//默认显示的字

textField.secureTextEntry=YES;//是否为密码式的输入框

textField.clearButtonMode=UITextFieldViewModeWhileEditing;

textField.delegate=self;

textField.keyboardType=UIKeyboardTypeDefault;//键盘显示类型

textField.autocapitalizationType=UITextAutocorrectionTypeYes;//是否开启自动提醒更正功能

textField.contentVerticalAlignment=UIControlContentVerticalAlignmentCenter;//居中显示

typedef enum {

UIControlContentVerticalAlignmentCenter = 0,

UIControlContentVerticalAlignmentTop = 1,

UIControlContentVerticalAlignmentBottom = 2,

UIControlContentVerticalAlignmentFill = 3,

} UIControlContentVerticalAlignment;

textField.textColor=[UIColor redColor];//字体颜色

textField.font=[UIFont fontWithName:@”Times New Roman” size:35];//字体类型以及尺寸

textField.background=[UIImage imageNamed:@”background.png”];//背景图片

[self.view addSubview:textField];

//委托方法

-(void)textFieldDidBeginEditing:(UITextField *)textField

{//点击文本框时会调用该方法

NSLog(@”你开始点击textField了！”);

}

-(void)textFieldDidEndEditing:(UITextField *)textField

{//结束点击时会调用该方法

NSLog(@”你结束点击textField了！”);}

-(BOOL)textFieldShouldReturn:(UITextField *)textField

{//点击Return关闭键盘

//关于关闭键盘的常用方法可以参考另一篇博客

//http://blog.csdn.net/it_ds/article/details/44830695

[textField resignFirstResponder];

return YES;

}

//限定文本框的输入字数

-(BOOL)textField:(UITextField )textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString )string

{

if (range.location>=MAX_LENGTH) {

return NO;

}
return YES;}