IOS AlertView动态添加按钮

    UIAlertView*    genderAlert = [[UIAlertView alloc] initWithTitle:@"颜色" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:nil, nil];

    if (_productColorArray) {

        for (int i = 0; i < _productColorArray.count; i++) {

            NSString* str = [_productColorArray objectAtIndex:i];

            if ( ![str isEqual:[NSNull null]] && str.length != 0) {

                [genderAlert addButtonWithTitle:str];

            }

        }

    }

    [genderAlert addButtonWithTitle:@"取消"];

    genderAlert.cancelButtonIndex = genderAlert.numberOfButtons-1;

    [genderAlert show];

    return;

    

UIActionSheet 添加的方法类似。