iOS开发 获取状态栏的点击事件

首先我们追踪UIStatusBar的触摸事件，需要在AppDelegate里面加入以下代码

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [super touchesBegan:touches withEvent:event];
    CGPoint location = [[[event allTouches] anyObject] locationInView:self.window];
    CGRect statusBarFrame = [UIApplication sharedApplication].statusBarFrame;
    if (CGRectContainsPoint(statusBarFrame, location)) {
        [self statusBarTouchedAction];
    }
}

然后在statusBarTouchedAction方法中将显示在当前keyWindow里面的scrollView滚动到顶部

- (void)statusBarTouchedAction {

      [[DDTopWindow defaultDDTopWindow] scrollsToTop];

}

下面来看DDTopWindow

@interface DDTopWindow : UIView

+ (instancetype)defaultDDTopWindow;

- (void)configScrollView:(UIScrollView *)scrollView isCanTop:(BOOL)isCanTop;

- (void)scrollsToTop;

@end

#import "DDTopWindow.h"

static UIScrollView *scrollView_;

@interface DDTopWindow ()

@property (nonatomic, assign) BOOL isCan;

@end

@implementation DDTopWindow

SYNTHESIZE_SINGLETON_FOR_CLASS_ARC(DDTopWindow);

- (void)configScrollView:(UIScrollView *)scrollView isCanTop:(BOOL)isCanTop {

  scrollView_ = scrollView;

  self.isCan = isCanTop;

}

- (void)scrollsToTop {

  if (scrollView_.scrollEnabled) {

    [scrollView_ setContentOffset:CGPointMake(scrollView_.contentOffset.x, -scrollView_.contentInset.top) animated:YES];

  }

}

@end