使一些控件的键盘变为自定义
#import "ViewController.h"
@interface ViewController ()
// 日期选择控件
@property (nonatomic, strong) UIDatePicker *datePicker;
// 工具条
@property (nonatomic, strong) UIToolbar *toolbar;
@property(nonatomic,strong) UITextField *textField;
@end
@implementation ViewController
#pragma mark - life cycle
- (void)viewDidLoad {
[super viewDidLoad];
// 设置文本框的输入界面为datePicker
[self.view addSubview:self.textField];
self.textField.inputView = self.datePicker;
// 设置工具条
self.textField.inputAccessoryView = self.toolbar;
}
#pragma mark - public methods
#pragma mark - private methods
- (void)cancelItemClick {
[self.view endEditing:YES];
}
- (void)doneItemClick {
// 1. 获取选中的日期
NSDate *date = self.datePicker.date;
// 2.将日期设置给文本框
// 讲日期转为字符串
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"yyyy年MM月dd日"; // HH:mm:ss 时分秒
NSString *str = [formatter stringFromDate:date];
// 赋值给文本框
self.textField.text = str;
// 3.关闭键盘
[self.view endEditing:YES];
}
#pragma mark - getter && setter
#pragma mark - lazy loading
- (UITextField *)textField {
if (!_textField) {
_textField = [[UITextField alloc] initWithFrame:CGRectMake(50, 100, 300, 50)];
_textField.borderStyle = UITextBorderStyleRoundedRect;
}
return _textField;
}
- (UIToolbar *)toolbar {
if (!_toolbar) {
// 只需要高度就够了
_toolbar = [[UIToolbar alloc] init];
_toolbar.bounds = CGRectMake(0, 0, 0, 44);
// 创建按钮放到工具条里面
// 取消
UIBarButtonItem *cancelItem = [[UIBarButtonItem alloc] initWithTitle:@"取消" style:UIBarButtonItemStylePlain target:self action:@selector(cancelItemClick)];
// 弹簧
UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
// 确认
UIBarButtonItem *doneItem = [[UIBarButtonItem alloc] initWithTitle:@"确认" style:UIBarButtonItemStylePlain target:self action:@selector(doneItemClick)];
// items里面存放的按钮都是UIBarbuttonItem类型, 而且这些按钮最终是要现实到工具条上的
_toolbar.items = @[cancelItem, flexSpace, doneItem];
}
return _toolbar;
}
- (UIDatePicker *)datePicker {
if (!_datePicker) {
// 不需要设置frame 自动占据键盘的位置
_datePicker = [[UIDatePicker alloc] init];
// 日期模式
_datePicker.datePickerMode = UIDatePickerModeTime;
// 本地化 local
_datePicker.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh-Hans"];
}
return _datePicker;
}
@end
