大家好,今天小编关注到一个比较有意思的话题,就是关于ios self.view.window的问题,于是小编就整理了2个相关介绍的解答,让我们一起看看吧。
qt中tableview为什么会空白?
1. 可能是因为数据源为空或者没有正确设置数据模型。
2. 在使用Qt中的TableView时,需要确保已经正确设置了数据源,并且数据源中包含了要显示的数据。
如果数据源为空,TableView就会显示为空白。
3. 此外,还需要检查是否正确设置了TableView的数据模型,包括设置列数、行数以及每个单元格的数据。
如果数据模型没有正确设置,TableView也会显示为空白。
另外,还需要确保TableView的大小和位置正确,以便能够正常显示数据。
如果TableView仍然显示为空白,可以尝试使用调试工具查看是否有错误提示或者打印相关信息,以便更好地定位问题所在。
同时,也可以参考Qt的官方文档或者社区中的相关讨论,寻找其他可能的解决方案。
if ([WXWCommonUtils currentOSVersion] > IOS7) { self.automaticallyAdjustsScrollViewInsets = NO; } self.automaticallyAdjustsScrollViewInsets = NO; 看这个UIViewController的这个属性你就明白了,此属性默认为YES,这样UIViewController下如果只有一个UIScollView或者其子类,那么会自动留出空白,让scollview滚动经过各种bar下面时能隐约看到内容。
但是每个UIViewController只能有唯一一个UIScollView或者其子类,如果超过一个,需要将此属性设置为NO,自己去控制留白以及坐标问题。
有关自力更生的高考英语作文?
From my point of view, self-reliance means doing whatever we can by ourselves, and when facing difficulties, we try our best to deal with the problems rather than rely on others.
Self-reliance is vital to everybody in that we can not depend on others all the time.
Besides, it is also a sign of growing-up, which means that we can take the responsibilities for the family and the society.
Then how can we become self-reliant?
Firstly, we should get out of the bad habit of being looked after by our parents.
Secondly, we should not ask for help from others easily when we are involved in some troubling situation.
Moreover, self-confidence is a precondition of self-reliance, for only when we trust in ourselves, we can be self-reliant.
"Trust thyself", so says American author and philosopher Ralph Waldo Emerson in his famous essay "Self-reliance".
Self-reliance is important to everybody and is one of the key factors that make us successful in life.
到此,以上就是小编对于的问题就介绍到这了,希望介绍的2点解答对大家有用,有任何问题和不懂的,欢迎各位老师在评论区讨论,给我留言。