iOSUIButton同时设置title和image属性

    在iOS开发中,使用UIButton设置title和p_w_picpath,达到tabBarItem的效果,即title在下,p_w_picpath在上:

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iOS UIButton同时设置title和image属性

    目前,我发现有两种比较好的方法:

方法一,使用UIEdgeInsets

    UIButton *button = [UIButtonbuttonWithType:UIButtonTypeSystem];

    [button setFrame:CGRectMake(100, 100, 60, 60)];

    [buttonsetBackgroundColor:[UIColorgreenColor]];

    

    UIImage *p_w_picpath = [UIImage p_w_picpathNamed:@"index"];

    [buttonsetTitle:@"首页"forState:UIControlStateNormal];

    [buttonsetImage:p_w_picpathforState:UIControlStateNormal];

    

    // 如果不设置,则默认p_w_picpath在左,title在右,居中显示

    // 如果如下设置,则title和p_w_picpath重叠居中显示

    button.titleEdgeInsets = UIEdgeInsetsMake(0.0, -p_w_picpath.size.width, 0.0, 0.0);

    button.p_w_picpathEdgeInsets =UIEdgeInsetsMake(0.0,0.0,0.0, -

                button.titleLabel.bounds.size.width);

        // 如果如下设置,则title向下移动40个单位,在下,p_w_picpath向上移动20个单位,在上,居中显示

    button.titleEdgeInsets = UIEdgeInsetsMake(40.0, -p_w_picpath.size.width, 0.0, 0.0);

    button.p_w_picpathEdgeInsets =UIEdgeInsetsMake(-20.0,0.0,0.0, -    

                button.titleLabel.bounds.size.width);

   [self.viewaddSubview:button];

方法二,重写UIButton的layoutSubviews

- (void)layoutSubviews

{

    [superlayoutSubviews];

   CGPoint center =self.p_w_picpathView.center;

    center.x = self.frame.size.width/2;

    center.y =self.p_w_picpathView.frame.size.height/2;

    self.p_w_picpathView.center = center;

    CGRect frame = [self titleLabel].frame;

    frame.origin.x = 0;

    frame.origin.y =self.p_w_picpathView.frame.size.height +2;

    frame.size.width =self.frame.size.width;

    self.titleLabel.frame = frame;

   self.titleLabel.textAlignment =NSTextAlignmentCenter;

    [self.titleLabelsetFont:[UIFontsystemFontOfSize:10.0f]];

}


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