给button增加点击事件时这个地方也加上了 UIControlEventTouchUpOutside 这个

self.typeButton = [UIButtonbuttonWithType:UIButtonTypeCustom];

        self.typeButton.frame =self.bounds;

        self.typeButton.showsTouchWhenHighlighted =YES;

        self.typeButton.titleLabel.textAlignment =GNTextAlignmentCenter;

        UIColor* color = [UIColorcolorWithRed:136.f/255.fgreen:90.f/255.fblue:31.f/255.falpha:1.0f];

        [self.typeButtonsetTitleColor:color forState:UIControlStateNormal];

        self.typeButton.titleLabel.font = [UIFontsystemFontOfSize:10.0f];

        self.typeButton.titleLabel.textAlignment =GNTextAlignmentCenter;

        [self.typeButtonsetTitleEdgeInsets:UIEdgeInsetsMake(25.0f, -19.0f,10.0f,0.0f)];

        [self.typeButtonsetImageEdgeInsets:UIEdgeInsetsMake(4.0f,12.0f, 20.0f,12.0f)];

        [self.typeButtonaddTarget:self action:@selector(handleLandTipSelected:)

                  forControlEvents:UIControlEventTouchUpInside|UIControlEventTouchUpOutside];

        [self addSubview:self.typeButton];

PS：查了下资料，UIControlEventTouchUpOutside 这个貌似是点击button后不放开，然后拖动到外面，接着才放开的事件