这个问题在这里已经有了答案:Howtocreateacolored1x1UIImageontheiPhonedynamically?(6个回答)关闭7年前。我正在创建这样的彩色图像:CGRectrect=CGRectMake(0,0,1,1);UIGraphicsBeginImageContext(rect.size);CGContextRefcontext=UIGraphicsGetCurrentContext();CGContextSetFillColorWithColor(context,[[UIColorredColor]CGColor]);//[[UIColorcolorWi
这个问题在这里已经有了答案:Howtocreateacolored1x1UIImageontheiPhonedynamically?(6个回答)关闭7年前。我正在创建这样的彩色图像:CGRectrect=CGRectMake(0,0,1,1);UIGraphicsBeginImageContext(rect.size);CGContextRefcontext=UIGraphicsGetCurrentContext();CGContextSetFillColorWithColor(context,[[UIColorredColor]CGColor]);//[[UIColorcolorWi
如果我只在按钮中放置一个图像并将imageEdgeInsets设置为更靠近顶部，则图像将保持居中并且一切都按预期工作:[buttonsetImage:imageforState:UIControlStateNormal];[buttonsetImageEdgeInsets:UIEdgeInsetsMake(-15.0,0.0,0.0,0.0)];如果我只在按钮中放置一个文本并将titleEdgeInsets设置为更靠近底部，则文本将保持居中并且一切都按预期工作:[buttonsetTitle:titleforState:UIControlStateNormal];[buttonsetT
如果我只在按钮中放置一个图像并将imageEdgeInsets设置为更靠近顶部，则图像将保持居中并且一切都按预期工作:[buttonsetImage:imageforState:UIControlStateNormal];[buttonsetImageEdgeInsets:UIEdgeInsetsMake(-15.0,0.0,0.0,0.0)];如果我只在按钮中放置一个文本并将titleEdgeInsets设置为更靠近底部，则文本将保持居中并且一切都按预期工作:[buttonsetTitle:titleforState:UIControlStateNormal];[buttonsetT
我在名为“addButton”的应用程序中使用自定义按钮，我想用白色为其添加边框，如何在自定义按钮周围设置白色边框？ 最佳答案 您可以通过访问按钮的图层属性来设置CALayer上的边框属性。首先，添加quartz#import设置属性:myButton.layer.borderWidth=2.0f;myButton.layer.borderColor=[UIColorgreenColor].CGColor;见:https://developer.apple.com/documentation/quartzcore/calayer#/
我在名为“addButton”的应用程序中使用自定义按钮，我想用白色为其添加边框，如何在自定义按钮周围设置白色边框？ 最佳答案 您可以通过访问按钮的图层属性来设置CALayer上的边框属性。首先，添加quartz#import设置属性:myButton.layer.borderWidth=2.0f;myButton.layer.borderColor=[UIColorgreenColor].CGColor;见:https://developer.apple.com/documentation/quartzcore/calayer#/
我以编程方式创建了一个按钮............button=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];[buttonaddTarget:selfaction:@selector(aMethod:)forControlEvents:UIControlEventTouchDown];[buttonsetTitle:@"ShowView"forState:UIControlStateNormal];button.frame=CGRectMake(80.0,210.0,160.0,40.0);[viewaddSubview:butto
我以编程方式创建了一个按钮............button=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];[buttonaddTarget:selfaction:@selector(aMethod:)forControlEvents:UIControlEventTouchDown];[buttonsetTitle:@"ShowView"forState:UIControlStateNormal];button.frame=CGRectMake(80.0,210.0,160.0,40.0);[viewaddSubview:butto
如何在代码中为UIButton设置图像？我有这个:UIButton*btnTwo=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];btnTwo.frame=CGRectMake(40,140,240,30);[btnTwosetTitle:@"vc2:v1"forState:UIControlStateNormal];[btnTwoaddTarget:selfaction:@selector(goToOne)forControlEvents:UIControlEventTouchUpInside];[self.viewaddSubvie
如何在代码中为UIButton设置图像？我有这个:UIButton*btnTwo=[UIButtonbuttonWithType:UIButtonTypeRoundedRect];btnTwo.frame=CGRectMake(40,140,240,30);[btnTwosetTitle:@"vc2:v1"forState:UIControlStateNormal];[btnTwoaddTarget:selfaction:@selector(goToOne)forControlEvents:UIControlEventTouchUpInside];[self.viewaddSubvie
