ios中没有类似于Androidtoast效果的提示,在提示用户的时候显得尤为不便,因此做了一个类似Toast的功能.
UILabel *hintLabel = [[UILabel alloc] initWithFrame:CGRect(80,400,160,40)];
hintLabel.textAlignment = NSTextAlignmentCenter;
hintLabel.backgroundColor = [UIColor lightGrayColor];
hintLabel.alpha = 0.0;
hintLabel.text = @"提示字符...........";
[self.view addSubview:hintLabel];
//animateWithDuration可以控制label显示持续时间
[UIView animateWithDuration:1.0 animations:^{
hintLabel.alpha = 1.0;
} completion:^(BOOL finished){
[hintLabel removeFromSuperview];
}];