在线HTTP POST/GET接口测试工具 - aTool在线工具

http://www.atool.org/httptest.php

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iOS 渐渐消失的提示框怎么实现

假设需要消失的提示框是view
[UIView animateWithDuration:1.f animations:^{

view.alpha = 0.f;

}];
duration参数是时间, 多久消失

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+(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];
    }];
}

 

posted @ 2015-10-23 20:24  空空亦空  阅读(12648)  评论(1编辑  收藏  举报