按下时切换 UIButton 状态,如开关

toggle UIButton-state when pressing, like a switch(按下时切换 UIButton 状态,如开关)
本文介绍了按下时切换 UIButton 状态,如开关的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

-(void)setState:(id)sender
{
    UIButton* button = (UIButton*)sender;
    BOOL buttonBool = ([button state]==selected : YES ? NO);
    [sender setSelected:buttonBool++];

}

这是我的想法,但我无法弄清楚调用功能的按钮的实际状态.任何调用此功能的按钮都应在默认状态和选定状态之间切换,以便它像开关一样工作.我只需要拥有自己的背景图形,否则我使用了开关.

this is my idea, but i cant figure out the actual state of the button calling the funktion. any button, that calls this funktion, should be toggled between default and selected-state, so that it works like a switch. i just need to have own background-graphics, else i had used a switch.

那么,谁能纠正我的想法?

so, can anyone please correct my idea ?

推荐答案

试试这个方法:

-(void)setState:(id)sender
{
    UIButton* button = (UIButton*)sender;
    button.selected = !button.selected;
}

这篇关于按下时切换 UIButton 状态,如开关的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持编程学习网!

本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除!

相关文档推荐

Pushing UIViewController above UITabBar(将UIView控制器推送到UITabBar上方)
How to stop UIBarButtonItem text from truncating?(如何阻止UIBarButtonItem文本被截断?)
java.lang.IllegalStateException: SimpleTypeImpl should not be created for error type(异常:不应为错误类型创建SimpleTypeImpl)
Android IllegalArgumentException: The tag for fragment_XXX is invalid. Received: layout-sw600dp/fragment_XXX_0(Android IlLegalArgumentException:Fragment_XXX的标签无效。收到:Layout-sw600dp/Fragment_XXX_0)
iOS convert audio sample rate from 16 kHz to 8 kHz(IOS将音频采样率从16 kHz转换为8 kHz)
Enforcing an audio sampling rate in iOS(在iOS中强制音频采样率)