UIPickerView
来源:互联网 发布:java模板t 编辑:程序博客网 时间:2024/05/19 03:21
UIPickerView
1.UIPickerView的常见属性
// 数据源(用来告诉UIPickerView有多少列多少行)
@property(nonatomic,assign) id<UIPickerViewDataSource> dataSource;
// 代理(用来告诉UIPickerView每1列的每1行显示什么内容,监听UIPickerView的选择)
@property(nonatomic,assign) id<UIPickerViewDelegate> delegate;
// 是否要显示选中的指示器
@property(nonatomic) BOOL showsSelectionIndicator;
// 一共有多少列
@property(nonatomic,readonly) NSInteger numberOfComponents;
2.UIPickerView的常见方法
// 重新刷新所有列
- (void)reloadAllComponents;
// 重新刷新第component列
- (void)reloadComponent:(NSInteger)component;
// 主动选中第component列的第row行
- (void)selectRow:(NSInteger)row inComponent:(NSInteger)component animated:(BOOL)animated;
// 获得第component列的当前选中的行号
- (NSInteger)selectedRowInComponent:(NSInteger)component;
3.数据源方法(UIPickerViewDataSource)
// 一共有多少列
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;
// 第component列一共有多少行
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component;
4.代理方法(UIPickerViewDelegate)
// 第component列的宽度是多少
- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component;
// 第component列的行高是多少
- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component;
// 第component列第row行显示什么文字
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component;
// 第component列第row行显示怎样的view(内容)
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view;
// 选中了pickerView的第component列第row行
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component;
0 0
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIpickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIPickerView
- UIpickerview
- UIPickerView
- UIpickerView
- UIPickerView
- 【黑马程序员】StringBuffer,Array,Integer,BigInteger,Date,Calendar,集合——Java复习笔记
- [sicily]1433. Optimal Parking
- @Controller、@RequestMapping
- 在IOS8及IOS9中使用UILocationNotification本地推送时不显示推送
- Java基础(14):网络编程之socket
- UIPickerView
- Android开源BezierView:仿QQ未读消息99+条的红色气泡
- 数据结构与算法javascript描述(五) 选择排序
- AudioManager的简单使用
- UIDatePicker
- Http基础学习
- Photos框架学习备忘
- [Leetcode]Ugly Number
- TinyOS06:Avrora的Mailing List