弹出视图的动画工具类

Simulator Screen Shot - iPhone 11 Pro - 2020-09-25 at 18.12.40.png

OC代码,主要处理弹出各种view
.h

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

typedef enum : NSUInteger {
    PopDirectionTop,
    PopDirectionLeft,
    PopDirectionBottom,
    PopDirectionRight,
    PopDirectionCenter
} PopDirection;

@interface PopupTool : NSObject

/**从不同方向弹出自定义视图
   给UIView增加了个自定义属性popSuccessBlock,popDismissBlock,这个单独在各自的popview的点击消失事件中调用
 */
+(void)pop:(UIView *)popView TargetView:(UIView *)targetView PopDirection:(PopDirection)popDirection;

@end

NS_ASSUME_NONNULL_END

#import "PopupTool.h"

@implementation PopupTool

+(void)pop:(UIView *)popView TargetView:(UIView *)targetView PopDirection:(PopDirection)popDirection{
    
    //蒙版背景
    UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, targetView.width, targetView.height)];
    [targetView addSubview:backView];
    
    [PopupTool getPopViewFromFramWith:popView PopDirection:popDirection];
    if (![targetView.subviews containsObject:popView]) {
        if (popView.width == 0 || popView.height == 0) {
            popView.size = CGSizeMake(WIDTH, HEIGHT);
        }
        [targetView addSubview:popView];
    }
    //弹性动画
    [UIView animateWithDuration:0.5 delay:0.0 usingSpringWithDamping:0.9 initialSpringVelocity:5.0 options:(UIViewAnimationOptionCurveEaseInOut | UIViewAnimationOptionAllowUserInteraction) animations:^{
        [PopupTool getPopViewToFramWith:popView PopDirection:popDirection];
    } completion:^(BOOL finished) {
        [PopupTool getPopViewToFramWith:popView PopDirection:popDirection];
        BLOCK_EXEC(popView.popSuccessBlock);
    }];
    [PopupTool animateChangeBackgroundColorDarkWith:backView Duration:0.5];
    
    //处理消失事件(给UIView增加了个自定义属性popDismissBlock,这个单独在各自的popview的点击消失事件中调用)
   __weak typeof(popView) weakPopView = popView;
    void (^dismiss)(void) = ^{
        [PopupTool animateChangeBackgroundColorLightWith:backView Duration:0.5];
        [UIView animateWithDuration:0.5 delay:0.0 usingSpringWithDamping:0.9 initialSpringVelocity:5.0 options:(UIViewAnimationOptionCurveEaseInOut) animations:^{
            [PopupTool getPopViewFromFramWith:weakPopView PopDirection:popDirection];
        } completion:^(BOOL finished) {
            [weakPopView removeFromSuperview];
            [backView removeFromSuperview];
        }];
    };
    popView.popDismissBlock = dismiss;
}



//TODO: -- 私有事件

+(void)getPopViewFromFramWith:(UIView *)popView PopDirection:(PopDirection)popDirection{
    if (popDirection == PopDirectionTop) {
        popView.x = 0;
        popView.y = -HEIGHT;
    }else if (popDirection == PopDirectionLeft) {
        popView.x = -WIDTH;
        popView.y = 0;
    }else if (popDirection == PopDirectionBottom) {
        popView.x = 0;
        popView.y = HEIGHT;
    }else if (popDirection == PopDirectionRight) {
        popView.x = WIDTH;
        popView.y = 0;
    }else if (popDirection == PopDirectionCenter) {
        popView.frame = CGRectMake(0, 0, WIDTH, HEIGHT);
        popView.transform = CGAffineTransformMakeScale(0.0001, 0.0001);
    }
}

+(void)getPopViewToFramWith:(UIView *)popView PopDirection:(PopDirection)popDirection{
    if (popDirection == PopDirectionCenter) {
        popView.transform = CGAffineTransformMakeScale(1.0, 1.0);
    }else{
        popView.x = 0;
        popView.y = 0;
    }
}

//背景色逐步加深
+(void)animateChangeBackgroundColorDarkWith:(UIView *)view Duration:(NSTimeInterval)duration{
   
    [UIView animateKeyframesWithDuration:duration delay:0.f options:UIViewKeyframeAnimationOptionCalculationModeLinear animations:^{
        [UIView addKeyframeWithRelativeStartTime:0.f relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.2);
        }];
        [UIView addKeyframeWithRelativeStartTime:1.0 / 4 relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.4);
        }];
        [UIView addKeyframeWithRelativeStartTime:2.0 / 4 relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.6);
        }];
        [UIView addKeyframeWithRelativeStartTime:3.0 / 4 relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.8);
        }];
    } completion:^(BOOL finished) {
        NSLog(@"动画结束");
    }];
}

//背景色逐步变浅
+(void)animateChangeBackgroundColorLightWith:(UIView *)view Duration:(NSTimeInterval)duration{
   
    [UIView animateKeyframesWithDuration:duration delay:0.f options:UIViewKeyframeAnimationOptionCalculationModeLinear animations:^{
        [UIView addKeyframeWithRelativeStartTime:0.f relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.6);
        }];
        [UIView addKeyframeWithRelativeStartTime:1.0 / 4 relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.4);
        }];
        [UIView addKeyframeWithRelativeStartTime:2.0 / 4 relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.2);
        }];
        [UIView addKeyframeWithRelativeStartTime:3.0 / 4 relativeDuration:1.0 / 4 animations:^{
            view.backgroundColor = RGBAColor(0, 0, 0, 0.0);
        }];
    } completion:^(BOOL finished) {
        NSLog(@"动画结束");
    }];
}

@end

给UIView增加category
.h

/**pop视图单独使用*/
@property (nonatomic, copy) void(^popSuccessBlock)(void);
@property (nonatomic, copy) void(^popDismissBlock)(void);

-(void)setPopSuccessBlock:(void (^)(void))popSuccessBlock{
    objc_setAssociatedObject(self, @"popSuccessBlock", popSuccessBlock, OBJC_ASSOCIATION_COPY_NONATOMIC);
}

-(void (^)(void))popSuccessBlock{
    return objc_getAssociatedObject(self, @"popSuccessBlock");
}

-(void)setPopDismissBlock:(void (^)(void))popDismissBlock{
    objc_setAssociatedObject(self, @"popDismissBlock", popDismissBlock, OBJC_ASSOCIATION_COPY_NONATOMIC);
}

-(void (^)(void))popDismissBlock{
    return objc_getAssociatedObject(self, @"popDismissBlock");
}

具体使用:

//具体在那个view层上弹出可自定义        
        OptionOrderSureView *view = [[OptionOrderSureView alloc] init];
        [PopupTool pop:view TargetView:KeyWindow PopDirection:(PopDirectionCenter)];

//OptionOrderSureView  占用整个window即可, 弹窗视图的close事件调用下
-(void)close{
    BLOCK_EXEC(self.popDismissBlock);
}