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YsyNoticeViewDemo

没有妹纸你们是不会进来的!

  • 今天第一次发文章,才发现写个文章水也很深啊。
  • 废话不多说。来说一说YsyNoticeView
  • 由于马上项目需要更新,产品大大做了相关原型,于是我这个小小的程序猿开始了各种封装

QQ点赞已满的提示

  • 产品中有一个提示跟QQ点赞的提示类似的效果。所以就写了这样一个demo。

  • 因为gif制作太麻烦了。所以用的都是截图。哈哈请见谅。下面是demo的部分截图。 YsyNoticeView

  • 使用的话直接调用类方法

[YsyNoticeView showInfo:@"网络出错" withStyle:YsyNoticeStyleTop];
  • 其中YsyNoticeStyle是选择展示方式,有上中下三种效果。
typedef NS_ENUM(NSUInteger, YsyNoticeStyle)
{
    YsyNoticeStyleTop = 0,
    YsyNoticeStyleTableView,
    YsyNoticeStyleBottom
} ;
  • YsyNoticeStyleTableView,类似汽车之家刷新之后的效果。

YsyNoticeStyleTableView效果

  • YsyNoticeStyleBottom,在屏幕下方淡出的效果。 YsyNoticeStyleBottom效果

  • 如果你的tableView位置不是常规的位置的话 使用下面的代码调用

+(void)showInfo:(NSString *)info withTableView:(UITableView *)tableView;
  • 例如下图

刷新

刷新结束


  • 实现方法其实很简单 简单解释下YsyNoticeStyleTop代码吧

  • 第一步 创建topview 和UIImageView 还有label

    UIView *topView = [[UIView alloc] initWithFrame:CGRectMake(0, -height, SCREEN_WIDTH, height)];
    topView.userInteractionEnabled = YES;
    topView.backgroundColor = [UIColor whiteColor];
  
    topView.layer.shadowColor = [UIColor lightGrayColor].CGColor;
    topView.layer.shadowOpacity = 1;
    topView.layer.shadowRadius = 5;
    topView.layer.shadowOffset = CGSizeMake(3.0, 3.0);
    
    UIImageView *icon = [[UIImageView alloc] initWithFrame:CGRectMake(10, 64 - 20 - 11 , 20, 20)];
    icon.image = [UIImage imageNamed:@"提示"];
    [topView addSubview:icon];
    
    UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(10 + 20 + 10, 64 - 20 - 11, SCREEN_WIDTH - 40 - 20, 20)];
    textLabel.text = info;
    textLabel.textColor = [UIColor blackColor];
    textLabel.font = [UIFont boldSystemFontOfSize:14.0];
    [topView addSubview:textLabel];
  • 第二步 给top添加手势以及使用RAC监听手势。(用于反馈用户上滑)
    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] init];
    
    [[pan rac_gestureSignal] subscribeNext:^(UIPanGestureRecognizer *pan) {
        NSLog(@"%@", pan);
        [UIView animateWithDuration:0.7 animations:^{
            pan.view.frame = CGRectMake(0, -height, SCREEN_WIDTH, height);
        } completion:^(BOOL finished) {
            [pan.view removeFromSuperview];
        }];
        [pan.view removeGestureRecognizer:pan];
    }];
    [topView addGestureRecognizer:pan];
  • 第三步 将topView直接添加到window上并且添加弹簧动画,然后再1.5秒之后自动上已隐藏
    UIWindow *window = [UIApplication sharedApplication].keyWindow;
    [window addSubview:topView];
    // 弹簧动画,参数分别为:时长,延时,弹性(越小弹性越大),初始速度
    [UIView animateWithDuration: 0.7 delay:0 usingSpringWithDamping:0.4 initialSpringVelocity:0.3 options:0 animations:^{
        topView.frame = CGRectMake(0, 0, SCREEN_WIDTH, height);
    } completion:^(BOOL finished) {
        if (finished) {
            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                [UIView animateWithDuration:0.7 animations:^{
                    topView.frame = CGRectMake(0, -height, SCREEN_WIDTH, height);
                } completion:^(BOOL finished) {
                    [topView removeFromSuperview];
                }];
            });
        }
    }];
}
  • 这样就完成了。虽然其中还有很多细节可以完善(例如使用单例,防止重复创建 等等 )。但是暂时可以满足业务需求于是也没多多加雕琢。(^__^) 嘻嘻……-

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