实现类似安卓自动消失提示框代码,ObjC代码库,德仔网

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【ObjC】实现类似安卓自动消失提示框

作者:CrazyPeter / 发布于2014/12/30/ 1002

类似安卓的提示框，由黑色背景，和一段文字组成。自动消失，时间可以自行斟酌。
已经封装成了类方法，可以放到工具类方法中随时使用。


	+(void)showMessage:(NSString *)message
	{
	 UIWindow * window = [UIApplication sharedApplication].keyWindow;
	 UIView *showview = [[UIView alloc]init];
	 showview.backgroundColor = [UIColor blackColor];
	 showview.frame = CGRectMake(1, 1, 1, 1);
	 showview.alpha = 1.0f;
	 showview.layer.cornerRadius = 5.0f;
	 showview.layer.masksToBounds = YES;
	 [window addSubview:showview];
	
	 UILabel *label = [[UILabel alloc]init];
	 CGSize LabelSize = [message sizeWithFont:[UIFont systemFontOfSize:17] constrainedToSize:CGSizeMake(290, 9000)];
	 label.frame = CGRectMake(10, 5, LabelSize.width, LabelSize.height);
	 label.text = message;
	 label.textColor = [UIColor whiteColor];
	 label.textAlignment = 1;
	 label.backgroundColor = [UIColor clearColor];
	 label.font = [UIFont boldSystemFontOfSize:15];
	 [showview addSubview:label];
	 showview.frame = CGRectMake((SCREEN_WIDTH - LabelSize.width - 20)/2, SCREEN_HEIGHT - 100, LabelSize.width+20, LabelSize.height+10);
	 [UIView animateWithDuration:1.5 animations:^{
	 showview.alpha = 0;
	 } completion:^(BOOL finished) {
	 [showview removeFromSuperview];
	 }];
	}

试试其它关键字

　自动消失　　提示框　

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