ios - 如何让 iOS 7 下的 UISwitch 不采用其背后视图的背景色？

Question

关闭时看起来像这样：

虽然我更喜欢灰色背景。我真的必须使用 UIImageView 吗？

Answer 1

这是我更改 iOS7 UISwitch 的填充颜色的方法。

首先你需要导入 QuartzCore。

#import <QuartzCore/QuartzCore.h>

然后设置背景颜色并圆化 UISwitch 的角。

UISwitch *mySwitch = [[UISwitch alloc] initWithFrame:CGRectMake(0.0, 0.0, 51.0, 31.0)];
mySwitch.backgroundColor = [UIColor redColor];
mySwitch.layer.cornerRadius = 16.0; // you must import QuartzCore to do this.
[self addSubview:mySwitch];

这将为您提供具有自定义关闭（背景）颜色的 UISwitch。

希望这对某人有帮助:)

Answer 2

您可以将您的setOnTintColor属性设置为您UISwitch想要的颜色。

Answer 3

您也可以在 Interface Builder 中为开关设置此项。只需将背景颜色设置为UISwitch您想要的任何颜色（白色，在下面的示例中），然后设置用户定义的运行时属性layer.cornerRadius = 16：

Answer 4

There's no API support for changing the off fill color of a UISwitch.

Adjusting the tintColor will only affect the outline, and adjusting the backgroundColor will affect the whole frame, including the parts outside the rounded bounds.

You either have to place a properly shaped opaque UIView behind it or - easier - use a custom open source implementation, such as MBSwitch, which allows you to set the off fill color.

Answer 5

您还可以使用图像作为背景，使用 [UIColor colorWithPatternImage];

mySwitch.onTintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"toggle-bg-on"]];
mySwitch.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"toggle-bg-off"]];

Answer 6

Adding to Barry Wyckoff solution : set tint color also

UISwitch *mySwitch = [[UISwitch alloc] initWithFrame:CGRectMake(0.0, 0.0, 51.0, 31.0)];
mySwitch.backgroundColor = [UIColor redColor];
mySwitch.layer.cornerRadius = 16.0; // you must import QuartzCore to do this.
mySwitch.tintColor = [UIColor redColor];
[self addSubview:mySwitch];