前言
支持iOS8及以上,LCAlertViewController将 UIPickerView和UIAlertViewController结合, 并且添加自定义的View
GITHub地址:https://github.com/LuochuanAD/LCAlertViewController
代码分析
一,UIPickerView 与UIAlertViewController结合
typedef void(^PickerViewDidSelectedBlcok) (NSInteger component, NSInteger row);
@property (nonatomic, strong) UIPickerView * pickerView;
/**
* UIPickerView 与 UIAlertViewController 结合
*
* @param title alertViewController's title
*
* @param array pickerView's dataSources
*
* @param style alertViewController's style
*/
+ (LCAlertViewController *)LC_alertControllerWithTitle:(NSString *)title dataArray:(NSArray *)array preferredStyle:(LCAlertViewControllerStyle)style;
- (void)LC_addAction:(UIAlertAction *)action withPickerBlock:(PickerViewDidSelectedBlcok)block;
二,UIView (:UIImageView,UILable…)与UIAlertViewController结合
typedef void(^CustomViewCallBackBlcok) (NSString * callBackString);
typedef void(^FixedWidthBlcok) (CGFloat customViewWidth);
@property (nonatomic, copy) CustomViewCallBackBlcok callBackBlock;
/**
* 自定义View 警告 此处的view的坐标高度是 用空格的多少代替. 坐标在实际项目中需要仔细调整
* CustomViewCallBackBlcok 的作用 看实际的需求
*
* @param title alertViewController's title
*
* @param view customView
*
* @param style alertViewController's style
*
* @param block 返回的是系统固定 alertViewController的宽度
*/
+ (LCAlertViewController *)LC_alertControllerWithTitle:(NSString *)title customView:(UIView *)view preferredStyle:(LCAlertViewControllerStyle)style customWidth:(FixedWidthBlcok)block;
- (void)LC_addAction:(UIAlertAction *)action withCustomBlock:(CustomViewCallBackBlcok)block;
结语
由于使用的是系统的样式与动画效果, 那么LCAlertViewController的宽度和系统的保持相等 LCAlertViewControllerStyleAlert : 宽度为 270;
LCAlertViewControllerStyleActionSheet: iOS12.x版本 宽度为self.view.frame.size.width-16 iOS12.0以下 宽度为self.view.frame.size.width-20
博客旧版原文在CSDN上:https://blog.csdn.net/luochuanAD/article/details/83450748
