下拉刷新一直都是第三库的天下,有的第三库甚至支持上下左右刷新,UIRefreshControl是iOS6之后支持的一个刷新控件,不过由于功能单一,样式不能自定义,因此不能满足大众的需求,用法比较简单在UITableview和UICollectionview上面直接添加子视图即可使用。
代码调用:
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self .refreshControl = [[UIRefreshControl alloc] init];
[_refreshControl addTarget: self
action: @selector (refreshView:)
forControlEvents:UIControlEventValueChanged];
[ self .refreshControl setAttributedTitle:[[ NSAttributedString alloc] initWithString:@ "数据加载-FlyElephant" ]];
[ self .refreshControl setTintColor:[UIColor redColor]];
[ self .tableView addSubview: self .refreshControl];
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刷新回调:
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-( void )refreshView:(UIRefreshControl *)control{
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0 * NSEC_PER_SEC )), dispatch_get_main_queue(), ^{
[ self .refreshControl endRefreshing];
NSLog (@ "原文地址:http://www.cnblogs.com/xiaofeixiang" );
});
} |
当然如果有合适的图片我们可以覆盖加载的图片:
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self .loadingImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed: @ "RefreshIcon" ]];
self .loadingImageView.center = CGPointMake(CGRectGetMidX( self .view.bounds), 30);
[ self .refreshControl insertSubview: self .loadingImageView atIndex:0];
[ self .refreshControl bringSubviewToFront: self .loadingImageView];
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实现效果不是很好:
本文转自Fly_Elephant博客园博客,原文链接:http://www.cnblogs.com/xiaofeixiang/p/4668815.html,如需转载请自行联系原作者