Is it possible that when开发者_如何学运维 I hit the back button on the navigation bar and after go back to the previous page and then trigger an action on the previous page?
You can use the method of viewWillAppear.
央视是哪个频道西非利 33分钟前 来自北京1、央视一共有15个频道，分别是：CCTV-1综合频道、CCTV-2财经频道、CCTV-3综艺频道、CCTV-4中文国际频道、CCTV-5体育频道、CCTV-6电影频道、CCTV-7军事·农业频道、CC
请问买过的朋友，舒提啦旅行箱实际使用体验如何？
检查不孕不育需要的费用 补充说明：检查不孕不育需要的费用霸气御姐←_← 12小时前
海信ULED电视画质有什么不同的地方?樊倩竹 1天前 来自北京海信ULED电视按照我的理解，就是不同的面板技术，一般来说，ULED有背光，可以实现分区背光；QLED有背光，属于背光灯上覆盖量子膜；OLED无背光，属于自
钉子可以挂的住画框幕布吗360U3082033870 1天前 来自湖北可以。1、厚重的画框幕布挂在墙上的话，你可以给他钉一台钉子，这样的话他可以挂在后面的墙上，相对来说也是比较结实的。2、所以钉子可以挂的住画框幕
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari
103010正在紧张有序的拍摄中，恰逢演员王昌瑞的生日。现场工作人员为他庆生，主演也送上祝福。
It seems to me Apple won\'t allow this, but I need to make sure. For an app we\'re building, we want to ask the user to enter payment information (including credit card details) to pay for tickets. T
I need to generate an XML output using Perl code.I\'m trying not to use any libraries,as it\'s very simple, temporary XML that gets used by another step in the process.
《河神2》里最震撼的应该是九牛入海钓河妖的画面，把九头牛拴上铁链放入河中，然后引河妖出现，大家再齐心协力抓住它，可惜河妖行踪不定，力大无穷，人们根本不是它的对手。
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