效果图
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思路是依靠 UIalertController的高度是由内容判定,修改其view 即可
首先不需要改变该类的初始化(因为只是修改其view的界面)
继承UIalertController的.h文件
#import <UIKit/UIKit.h>typedef void(^BlockDate)(id date);@interface SheetDate : UIAlertController@property(nonatomic,copy)BlockDate blockDate;@property(retain,nonatomic)UIDatePicker* datePicker;-(NSString*)dealDate;-(void)addDatePicker;@end
继承UIalertController的.m文件
#import "SheetDate.h"@interface SheetDate ()@end@implementation SheetDate- (void)viewDidLoad{ [super viewDidLoad]; // Do any additional setup after loading the view from its nib.}- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}/** * 添加日期控件 */-(void)addDatePicker{ self.datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 0, 320, 216)]; self.datePicker.datePickerMode = UIDatePickerModeDate; self.datePicker.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"]; [self.view addSubview:self.datePicker]; }/** * 处理日期数据 * * @return */-(NSString*)dealDate{ NSDateFormatter * formatter = [[NSDateFormatter alloc ] init]; if (self.datePicker.datePickerMode==UIDatePickerModeTime) { [formatter setDateFormat:@"HH:ss"]; } else { [formatter setDateFormat:@"YYYY-MM-dd"]; } NSString* currentTime = [formatter stringFromDate:self.datePicker.date]; return currentTime;}
然后是使用
/** * 日期/时间选择 * * @param sender */- (IBAction)chooseDate:(UIButton *)sender{ SheetDate* sheetDate=[SheetDate alertControllerWithTitle:nil message:@"\n\n\n\n\n\n\n\n\n\n" preferredStyle:(UIAlertControllerStyleActionSheet)]; [sheetDate addDatePicker]; sheetDate.blockDate=^(NSString* date) { [sender setTitle:date forState:(UIControlStateNormal)]; }; //开始时间,结束时间 if (sender.tag==70||sender.tag==71) { sheetDate.datePicker.datePickerMode=UIDatePickerModeTime; } UIAlertAction* ok=[UIAlertAction actionWithTitle:@"确定" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * __nonnull action) { sheetDate.blockDate([sheetDate dealDate]); }]; [sheetDate addAction:ok]; [self presentViewController:sheetDate animated:YES completion:nil];
首先使用系统的方法创建uialertcontroller对象,使用\n是因为需要扩大显示的高度,然后调用[sheetDate addDatePicker]添加自定义界面,根据情况初始化使用日期数据的block
然后在sheet的选项中触发就可以了。
原标题:UIalertController日期控件
关键词:日期