Original address: https://www.jianshu.com/p/0b439487b4f9

One requirement in the project is to get all the click coordinates on the screen in the app.
The solution creates a subclass that inherits from UIApplication and then obtains and judges it in the sendEvent method

#import "MRApplication.h"
#include <CommonCrypto/CommonCrypto.h>

@interface MRApplication()

@property(nonatomic,assign) BOOL isMoved;

@end

@implementation MRApplication

- (void)sendEvent:(UIEvent *)event{
    if (event.type==UIEventTypeTouches) {
        UITouch *touch = [event.allTouches anyObject];
        
        if (touch.phase == UITouchPhaseBegan) {
            self.isMoved = NO;
        }
        
        if (touch.phase == UITouchPhaseMoved) {
            self.isMoved = YES;
        }
        
        if (touch.phase == UITouchPhaseEnded) {
            if (!self.isMoved && event.allTouches.count == 1) {
                UITouch *touch = [event.allTouches anyObject];
                CGPoint locationPointWindow = [touch preciseLocationInView:touch.window];
                NSLog(@"TouchLocationWindow:(%.1f,%.1f)",locationPointWindow.x,locationPointWindow.y);
            }
            self.isMoved = NO;
        }
    }
    [super sendEvent:event];
}

@end

In fact, the view information already exists in the touch object. If you want to get the relative coordinates in the view, you can also use touch.view.
CGPoint locationPointWindow = [touch preciseLocationInView:touch.view];

Note: This MR Application needs to be introduced into main.m, and then it can intercept all the click events of the whole app. Among them, I deal with sliding and multi-touch. Without judgment of if, I will get the UIEvent of sliding and multi-touch.

#import <UIKit/UIKit.h>
#import "AppDelegate.h"
#import "MRApplication.h"

int main(int argc, char * argv[]) {
    @autoreleasepool {
        return UIApplicationMain(argc, argv, NSStringFromClass([MRApplication class]), NSStringFromClass([AppDelegate class]));
    }
}