iOS之自定义pickerview(行驶里程数)
2016-02-25 14:08
531 查看
#pragma mark -- 里程数按钮的点击事件
- (void)mileageBtnClicked:(UIButton *)sender {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"里程数/km\n\n\n\n\n\n\n\n" message:nil preferredStyle:UIAlertControllerStyleAlert];
UIPickerView *mileage = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 40, 270, 150)];
//指定Delegate
mileage.delegate = self;
//显示选中框
mileage.showsSelectionIndicator = YES;
[alert.view addSubview:mileage];
UIAlertAction *ok = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
NSInteger row = [mileage selectedRowInComponent:0];
NSString *mileageNum = [pickerData objectAtIndex:row];
mileageLabel.text = [NSString stringWithFormat:@"%@km", mileageNum];
}];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
}];
[alert addAction:ok];
[alert addAction:cancel];
[self presentViewController:alert animated:YES completion:^{ }];
pickerData = [[NSArray alloc] initWithObjects:@"3000",@"3500",@"8000",@"8500",@"13000",@"13500",@"18000",@"18500",@"23000",@"23500",@"28500",@"33000",@"33500",@"38000",@"38500",@"43000",@"43500",@"48000",@"48500",@"53000",@"53500",@"58000",@"58500", nil];
}
#pragma mark -- UIPickerViewDataSource
//返回显示的列数
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
//返回显示的行数
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return pickerData.count;
}
#pragma mark -- UIPickerViewDelegate
//返回当前行的内容
- (nullable NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component __TVOS_PROHIBITED {
return [pickerData objectAtIndex:row];
}
- (void)mileageBtnClicked:(UIButton *)sender {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"里程数/km\n\n\n\n\n\n\n\n" message:nil preferredStyle:UIAlertControllerStyleAlert];
UIPickerView *mileage = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 40, 270, 150)];
//指定Delegate
mileage.delegate = self;
//显示选中框
mileage.showsSelectionIndicator = YES;
[alert.view addSubview:mileage];
UIAlertAction *ok = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
NSInteger row = [mileage selectedRowInComponent:0];
NSString *mileageNum = [pickerData objectAtIndex:row];
mileageLabel.text = [NSString stringWithFormat:@"%@km", mileageNum];
}];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
}];
[alert addAction:ok];
[alert addAction:cancel];
[self presentViewController:alert animated:YES completion:^{ }];
pickerData = [[NSArray alloc] initWithObjects:@"3000",@"3500",@"8000",@"8500",@"13000",@"13500",@"18000",@"18500",@"23000",@"23500",@"28500",@"33000",@"33500",@"38000",@"38500",@"43000",@"43500",@"48000",@"48500",@"53000",@"53500",@"58000",@"58500", nil];
}
#pragma mark -- UIPickerViewDataSource
//返回显示的列数
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
//返回显示的行数
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return pickerData.count;
}
#pragma mark -- UIPickerViewDelegate
//返回当前行的内容
- (nullable NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component __TVOS_PROHIBITED {
return [pickerData objectAtIndex:row];
}
相关文章推荐
- iOS开发那些事--性能优化–内存泄露问题的解决
- Nagios 监控系统架设全攻略
- iOS 25个性能优化/内存优化常用方法
- iOS中跳转控制器隐藏底部tabBar
- iOS项目内存优化
- iOS原生API生成二维码(CIFilter)
- kidd风的IOS日志之摄像头以及相册的调用
- ios 关于如何获取iphone或iPad的ip地址
- iOS的 tableView的自适应高度, XML 的 DOM 解析
- iOS9 & Xcode7 下设置LaunchImage启动图片 问题及解决
- iOS 电话在后台运行时,我的启动图片被压缩
- kidd风的IOS日志之IOS9 视频播放控制器(AVPlayer)
- 关于苹果开发证书失效的解决方案(2016年2月14日Failed to locate or generate matching signing assets)
- iOS开发 更改顶部状态栏颜色
- iOS如果获取蓝牙Mac地址
- iOS开发 获取图片点击位置的颜色
- iOS开发系列--通讯录、蓝牙、内购、GameCenter、iCloud、Passbook系统服务开发汇总
- ios NSNotificationCenter消息通讯机制
- iOS通过代码关闭程序
- Trying to dismiss the presentation controller while transitioning already