IOS的PickView作为TextField事件

本文介绍如何在iOS应用中集成UITextField与UIPickerView,实现一个简单的选择输入框功能。通过设置代理方法和数据源,使用户能够在UITextField中通过UIPickerView选择预设选项。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

#import "ViewController.h"

@interface ViewController () <UITextFieldDelegate,UIPickerViewDataSource,UIPickerViewDelegate>
@property (weak, nonatomic) IBOutlet UITextField *myTextField;

@property (strong,nonatomic) UIPickerView *myPickerView;
@property (strong,nonatomic) UIToolbar *myToolBar;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.myPickerView=[[UIPickerView alloc]init];
    self.myToolBar=[[UIToolbar alloc] initWithFrame:CGRectMake(0.0, self.view.frame.size.height - self.myToolBar.frame.size.height - 44.0, self.view.frame.size.width, 44.0)];
    UIBarButtonItem *finishBtn=[[UIBarButtonItem alloc]initWithTitle:@"完成" style:UIBarButtonItemStyleDone target:self action:@selector(finishAction)];

    [self.myToolBar setItems:[NSArray arrayWithObject:finishBtn]];

    self.myPickerView.delegate=self;
    self.myPickerView.dataSource=self;
    self.myTextField.delegate=self;

    self.myTextField.inputView=self.myPickerView;
    self.myTextField.inputAccessoryView=self.myToolBar;

}

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    return 1;
}

-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
    return 5;
}

-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
    return @"xinxia,woxihuanni";
}

-(void)textFieldDidEndEditing:(UITextField *)textField{
    NSInteger row=[self.myPickerView selectedRowInComponent:0];
    self.myTextField.text=[NSString stringWithFormat:@"%ld",(long)row];
}

-(void)finishAction{
    [self.myTextField endEditing:YES];
}

@end
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值