加载完成提醒

-(void)showWarnView

{

    warnView = [[UIViewalloc]initWithFrame:CGRectMake(110,130, 100,50)];

    warnView.layer.cornerRadius =8.5;

    UILabel *label = [[UILabelalloc]initWithFrame:CGRectMake(0,17, 100, 20)];

    label.text = @"待开发中";

    label.font = [UIFontsystemFontOfSize:12.0];

    label.textColor = [UIColorwhiteColor];

    label.textAlignment =UITextAlignmentCenter;

    label.backgroundColor = [UIColorclearColor];

    [warnView addSubview:label];

    warnView.backgroundColor = [UIColorblackColor];

    [self.view addSubview:warnView];

    [warnViewperformSelector:@selector(removeFromSuperview)withObject:nilafterDelay:0.5];

}