iOS 仿安卓弹框 alertview

//弹框

-(void)animationWithStr:(NSString *)alertTitle{

    

    self.alertLable = [[UILabel
alloc]initWithFrame:CGRectMake(kWidth/2 -
60, kHeight -
100, 120,
30)];

    self.alertLable.backgroundColor
= [UIColor
colorWithHexString:@"#8d8a8a"
alpha:1];

    self.alertLable.textColor = [UIColor
whiteColor];

    self.alertLable.textAlignment
= NSTextAlignmentCenter;

    self.alertLable.hidden =
NO;

    self.alertLable.text = alertTitle;

    self.alertLable.font
= [UIFont
systemFontOfSize:14];

    self.alertLable.layer.masksToBounds
= YES;

    self.alertLable.layer.cornerRadius
= 5;

    

    [self.view
addSubview:self.alertLable];

    

    [UIView
animateWithDuration:0.f
animations:^{

        

        self.alertLable.alpha =1;

        

    } completion:^(BOOL finished) {

        

        

        [UIView
animateWithDuration:3.f
animations:^{

            

            self.alertLable.alpha =
0;

            

        } completion:^(BOOL finished) {

            [self.alertLable
removeFromSuperview];

        }];

        

        

    }];

    

    

    

}