從屏幕頂部顯示橫幅

Question

我想創建一個回合制匹配。玩家收到通知時player:receivedTurnEventForMatch:didBecomeActive:

我想要顯示從屏幕頂部滑動的橫幅。 「輪到你玩」，類似於Game Center在玩家身份驗證時顯示的橫幅。

我該怎麼辦？應該是UIViewController還是UIAlert，還是什麼？

Answer 1

這裏是你想要的東西通知一個很好的例子，我希望可以幫助您： https://github.com/ekurutepe/MPNotificationView 或 https://github.com/edgurgel/CMNavBarNotificationView 或 https://github.com/terryworona/TWMessageBarManager

Answer 2

有很多方法可以做到你所提到的。這只是其中之一。隨意更改周圍的代碼並閱讀UIView動畫，你可以自己嘗試不同的事情。

-(void)myMethod { 
// create UILabel and set its properties 
UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 20, 320, 50)]; 
myLabel.backgroundColor = [UIColor grayColor]; 
NSString *myLabelText = @"Welcome back, Mike Lyman"; // showing you to use NSString for label text 
myLabel.textAlignment = NSTextAlignmentCenter; 
myLabel.text = myLabelText; 

[self.view addSubview:myLabel]; // add UILabel to view 

myLabel.frame = CGRectMake(0, -50, 320, 50); // set text label frame offscreen 

// start the animation to slide UILabel into visible view 
[UIView animateWithDuration:0.5 delay:0 
        options:UIViewAnimationOptionCurveLinear 
       animations:^ { 
        myLabel.frame = CGRectMake(0, 20, 320, 50); 

       } 
       completion:^(BOOL finished) { 
        // after 1 second delay, start sliding UILabel out of visible view 
        [UIView animateWithDuration:0.5 delay:1 
             options:UIViewAnimationOptionCurveLinear 
             animations:^ { 
              myLabel.frame = CGRectMake(0, -50, 320, 50); 

             } 
             completion:^(BOOL finished) { 
              NSLog(@"Done"); 
              [self.view removeFromSuperview]; // remove UILabel from view completely 
             }]; 
       }]; 
}