1.拓展UITouch类和UIEvent类（通过category），具体见附件TouchSynthesis.h和TouchSynthesis.m

2.在需要的类中，定义UITouch和UIEvent类的对象。

UITouch *touch = [[UITouchalloc] initWithPoint:point andView:mapview];

     UIEvent *eventDown = [[UIEventalloc] initWithTouch:touch];

[touch.view touchesBegan:[eventDownallTouches]  withEvent:eventDown];

[touch setPhase:UITouchPhaseEnded];

    UIEvent *eventUp = [[UIEventalloc] initWithTouch:touch];

    [touch.view touchesEnded:[eventUp allTouches] withEvent:eventUp];

    [eventDown release];

    [eventUp release];

     [touch release];

TouchSynthesis.h文件

#import @interface UITouch (Synthesize) - (id)initInView:(UIView *)view; -(id) initdoubletap:(UIView *)view; - (id)initWithPoint:(CGPoint)point andView:(UIView*)view; - (void)setPhase:(UITouchPhase)phase; - (void)setLocationInWindow:(CGPoint)location; @end @interface UIEvent (Synthesize) - (id)initWithTouch:(UITouch *)touch; @end

TouchSynthesis.m文件

#import "TouchSynthesis.h" #import "MyUITouch.h" @implementation UITouch (Synthesize) // // initInView:phase: // // Creats a UITouch, centered on the specified view, in the view's window. // Sets the phase as specified. // - (id)initInView:(UIView *)view {     NSLog(@"init in view");     self = [super init];     if (self != nil)     {         CGRect frameInWindow;         if ([view isKindOfClass:[UIWindow class]])         {             frameInWindow = view.frame;         }         else         {             frameInWindow =                 [view.window convertRect:view.frame fromView:view.superview];         }                  _tapCount = 1;         _locationInWindow =             CGPointMake(                 frameInWindow.origin.x + 0.5 * frameInWindow.size.width,                 frameInWindow.origin.y + 0.5 * frameInWindow.size.height);         _previousLocationInWindow = _locationInWindow;         UIView *target = [view.window hitTest:_locationInWindow withEvent:nil];         _window = [view.window retain];         _view = [target retain];         _phase = UITouchPhaseBegan;         _touchFlags._firstTouchForView = 1;         _touchFlags._isTap = 1;         _timestamp = [NSDate timeIntervalSinceReferenceDate];     }     return self; } - (id)initdoubletap:(UIView *)view {     NSLog(@"init in view");     self = [super init];     if (self != nil)     {         CGRect frameInWindow;         if ([view isKindOfClass:[UIWindow class]])         {             frameInWindow = view.frame;         }         else         {             frameInWindow =             [view.window convertRect:view.frame fromView:view.superview];         }                  _tapCount = 2;         _locationInWindow =         CGPointMake(                     frameInWindow.origin.x + 0.5 * frameInWindow.size.width,                     frameInWindow.origin.y + 0.5 * frameInWindow.size.height);         _previousLocationInWindow = _locationInWindow;                  UIView *target = [view.window hitTest:_locationInWindow withEvent:nil];                  _window = [view.window retain];         _view = [target retain];         _phase = UITouchPhaseBegan;         _touchFlags._firstTouchForView = 1;         _touchFlags._isTap = 1;         _timestamp = [NSDate timeIntervalSinceReferenceDate];     }     return self; } - (id)initWithPoint:(CGPoint)point andView:(UIView*)view {     self = [super init];     if (self != nil)     {         CGRect frameInWindow;         if ([view isKindOfClass:[UIWindow class]])         {             frameInWindow = view.frame;         }         else         {             frameInWindow =             [view.window convertRect:view.frame fromView:view.superview];         }                  _tapCount = 1;         _locationInWindow = point;         _previousLocationInWindow = _locationInWindow;         UIView *target = [view.window hitTest:_locationInWindow withEvent:nil];         _view = [target retain];         _window = [view.window retain];         _phase = UITouchPhaseBegan;         _touchFlags._firstTouchForView = 1;         _touchFlags._isTap = 1;         _timestamp = [NSDate timeIntervalSinceReferenceDate];     }     return self; } // // setPhase: // // Setter to allow access to the _phase member. // - (void)setPhase:(UITouchPhase)phase {     _phase = phase;     _timestamp = [NSDate timeIntervalSinceReferenceDate]; } // // setPhase: // // Setter to allow access to the _locationInWindow member. // - (void)setLocationInWindow:(CGPoint)location {     _previousLocationInWindow = _locationInWindow;     _locationInWindow = location;     _timestamp = [NSDate timeIntervalSinceReferenceDate]; } @end // // GSEvent is an undeclared object. We don't need to use it ourselves but some // Apple APIs (UIScrollView in particular) require the x and y fields to be present. // @interface GSEventProxy : NSObject { @public     unsigned int flags;     unsigned int type;     unsigned int ignored1;     float x1;     float y1;     float x2;     float y2;     unsigned int ignored2[10];     unsigned int ignored3[7];     float sizeX;     float sizeY;     float x3;     float y3;     unsigned int ignored4[3]; } @end @implementation GSEventProxy @end // // PublicEvent // // A dummy class used to gain access to UIEvent's private member variables. // If UIEvent changes at all, this will break. // @interface PublicEvent : NSObject { @public     GSEventProxy           *_event;     NSTimeInterval          _timestamp;     NSMutableSet           *_touches;     CFMutableDictionaryRef  _keyedTouches; } @end @implementation PublicEvent @end @interface UIEvent (Creation) - (id)_initWithEvent:(GSEventProxy *)fp8 touches:(id)fp12; @end // // UIEvent (Synthesize) // // A category to allow creation of a touch event. // @implementation UIEvent (Synthesize) - (id)initWithTouch:(UITouch *)touch {     CGPoint location = [touch locationInView:touch.window];     GSEventProxy *gsEventProxy = [[GSEventProxy alloc] init];     gsEventProxy->x1 = location.x;     gsEventProxy->y1 = location.y;     gsEventProxy->x2 = location.x;     gsEventProxy->y2 = location.y;     gsEventProxy->x3 = location.x;     gsEventProxy->y3 = location.y;     gsEventProxy->sizeX = 1.0;     gsEventProxy->sizeY = 1.0;     gsEventProxy->flags = ([touch phase] == UITouchPhaseEnded) ? 0x1010180 : 0x3010180;     gsEventProxy->type = 3001;              //     // On SDK versions 3.0 and greater, we need to reallocate as a     // UITouchesEvent.     //     Class touchesEventClass = objc_getClass("UITouchesEvent");     if (touchesEventClass && ![[self class] isEqual:touchesEventClass])     {         [self release];         self = [touchesEventClass alloc];     }          self = [self _initWithEvent:gsEventProxy touches:[NSSet setWithObject:touch]];     if (self != nil)     {     }     return self; } @end

MyUITouch.h文件 #import #ifdef __IPHONE_6_0 @interface UITouch () {     NSTimeInterval _timestamp;     UITouchPhase _phase;     UITouchPhase _savedPhase;     NSUInteger _tapCount;          UIWindow *_window;     UIView *_view;     UIView *_gestureView;     UIView *_warpedIntoView;     NSMutableArray *_gestureRecognizers;     NSMutableArray *_forwardingRecord;          CGPoint _locationInWindow;     CGPoint _previousLocationInWindow;     UInt8 _pathIndex;     UInt8 _pathIdentity;     float _pathMajorRadius;     struct {         unsigned int _firstTouchForView:1;         unsigned int _isTap:1;         unsigned int _isDelayed:1;         unsigned int _sentTouchesEnded:1;         unsigned int _abandonForwardingRecord:1;     } _touchFlags; } @end #endif