[iOS基础控件 - 6.10.3] DatePicker & UIToolBar

1     // 1.创建DatePicker
2     UIDatePicker *datePicker = [[UIDatePicker alloc] init];
3     // 2.设置模式
4     [datePicker setDatePickerMode:UIDatePickerModeDate];
5     // 3.设置locale
6     [datePicker setLocale:[NSLocale localeWithLocaleIdentifier:@"zh_CN"]];
7     // 4.设置textField的响应键盘为DatePicker
8     [self.textField setInputView:datePicker];

 1     // 1.创建UIToolBar
 2     UIToolbar *toolBar = [[UIToolbar alloc] init];
 3 //    toolBar.backgroundColor = [UIColor grayColor];
 4 //    toolBar.tintColor = [UIColor blueColor];
 5     toolBar.barTintColor = [UIColor grayColor]; // 这个才是UIToolBar的背景色
 6     toolBar.frame = CGRectMake(0, 0, 320, 44); // 必须设置好size，UIToolBar才能显示，否则只能显示Item，且不能点击
 7     // 2.创建Item
 8     UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithTitle:@"上一个" style:UIBarButtonItemStylePlain target:self action:@selector(previousClicked)];
 9    
10     UIBarButtonItem *item2 = [[UIBarButtonItem alloc] initWithTitle:@"下一个" style:UIBarButtonItemStylePlain target:self action:@selector(nextClicked)];
11    
12     UIBarButtonItem *item3 = [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(finishClicked)];
13    
14     // 间隙Item
15     UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
16    
17     // 3.添加Item到UIToolBar
18     toolBar.items = @[item1, item2, spaceItem, item3];
19    
20     // 4.添加UIToolBar到键盘上方，设置为textField的辅助视图
21     self.textField.inputAccessoryView = toolBar;