iphone 真机使用时,屏幕底部按钮在模拟器上高亮状态正常,在真机上会延迟出现,但是触摸事件又能够正常响应。原因:靠近底部的按钮会和系统向上的swip手势冲突,导致按钮判定过慢,这样快速点击放开是,按钮高亮状态不显示,可用下面的方法解决: 1、通过继承UIButton,重写Button的点击判断,可以在判断按钮内的时候立刻显示高亮状态...
1.获取通知中心(NSNotificationCenter)对象:(就像获取移动营运商短信中心的权限,作为媒介) 发布、注册、解除通知都需要使用通知中心,负责协助不同对象、不同类之间的消息通信。 [NSNotificationCenter defaultCenter]; //需要注意的是,通知中心也是一个单例 1. 2.发布(A类)和接收(B类) a.做为发布者的A类发送通知...
3. Restart your iPhone:Sometimes, simply restarting your iPhone can fix minor software glitches that may be causing notification issues. Press and hold the power button until the slider appears, then drag the slider to turn off the iPhone. After a few seconds, press and hold the power button...
在数字键盘上添加button: 复制 //定义一个消息中心[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];//addObserver:注册一个观察员 name:消息名称- (void)keyboardWillShow:(NSNotification *)note {// create custom but...
针对这种情况,最早的解决方案,请参考这里:http://www.cnblogs.com/mac_arthur/archive/2010/05/18/1738363.html。使用的是 以下代码来检测一个 Notification。 引用 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(addCustomKeyBoardButton) ...
在数字键盘上添加button: //定义一个消息中心[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotificationobject:nil];//addObserver:注册一个观察员 name:消息名称- (void)keyboardWillShow:(NSNotification *)note {//create custom buttonUIBut...
Notification Center Banners Banner Style Persistent After making any necessary adjustments, tap the < Notifications button in the top left corner to save your changes. Do Not Disturb (DND) or Focus Modes Might Be Enabled The central hub for managing how your iPhone alerts you to various activ...
The launch of iOS 11 brings about a convergence of the iPhone's Notification Center and Lock Screen for a new feature called Cover Sheet. Presenting a user's notifications and other events, the feature also offers a glimpse at how the new home-button-free iPhone X...
To get rid of all of those notifications at once, tap the X button next to the Notification Center header. That will clear the notifications, but it won't necessarily mute them. (Image credit: Tom's Guide) Instead, to mute notifications on your iPhone from the Notification Center, swipe ...
Now that you know why an app on your device may not appear in the Notification Center, let’s help you tackle this problem. Below, you’ll find a selection of different things you can try. 1. Check to See if You’ve Switched App Notifications On ...