里面ViewPager Android的主/从流 [英] Android Master/Detail flow inside ViewPager
问题描述
我也遇到过，我很无力解决一个问题，我用Google搜索了很多，但无法找到一个解决方案。
I have encountered a problem which i'm unable to solve, I googled a lot but couldn't find a solution.
在我的应用程序我有一个ViewPager其中包含3个页面。这些页面片段，因为他们应该的。这工作好了。然而其中的两个页面必须是主/从流量（一个好友列表，一个是新闻提要）。当我创建一个主/详细信息流与Eclipse 2片段和2个活动被创建。所述ItemListActivity（一个需要被示出）实现了片段的回调，这是一种活动，但ViewPager只接受内部本身片段
In my app I have a ViewPager which contains 3 pages. These pages are fragments as they should be. This works alright. However two of these pages must be Master/Detail flows (one for friends list, one for news feed). When I create a master/detail flow with eclipse 2 fragments and 2 activities are created. The ItemListActivity (the one that needs to be shown) implements the fragment's Callbacks, and this is an Activity, but ViewPager only accepts Fragments inside itself.
所以，问题是：我怎样才能把里面的一个ViewPager主/流量
So the question is: How can I place Master/Detail Flow inside a ViewPager?
所有帮助是非常AP preciated！ 我所有离开这里的想法。
All help is much appreciated! I'm all out of ideas here.
感谢
推荐答案
主/从流量只是在相同的内容来看，一个在左边，一个在右边被用于2片段的绰号。这是一般的想法。现在，主/详细流程可以在活动内使用（如Eclipse为您做介绍的模板）或一个片段里，幸运的是由于Android 4.2内的其他片段引入片段（这也是旧版本支持Android的兼容库Android系统）。
Master/Detail Flow is just a nickname for 2 fragments being used in the same content view, one on the left and one on the right. That's the general idea. Now, the Master/Detail Flow can be used inside an Activity (like Eclipse does for the template you described) or inside a Fragment, fortunately since Android 4.2 introduced Fragments inside other Fragments (this is also supported by the Android Compatibility Library for older version of Android).
Eclipse生成的模板被包含在一个活动（平板电脑），或2个活动（电话），因为Eclipse不知道你需要一个片段内主/细节。所以，你不能依赖于Eclipse的模板。但是，这并不难，只要把2片段在另一个片段。
The template generated by Eclipse is contained in an Activity (on tablets), or 2 Activities (for phones), because Eclipse doesn't know you need master/detail inside a fragment. So, you can't rely on Eclipse's template. But it's not that hard to just put 2 Fragments inside another Fragment.
您只需要忘记ViewPager了一会儿，做片段在你的工作，将包含主/详细信息流，我们称之为MasterFragment。
You just need to forget about the ViewPager for a while and do your work inside the Fragment that will contain the Master/Detail Flow, let's call it MasterFragment.
- 在声明2个片段：InnerListFragment，InnerDetailFragment。另外一个InnerDetailActivity手机。
-
声明2 XML布局文件MasterFragment：
- Declare 2 more Fragments: InnerListFragment, InnerDetailFragment. Also a InnerDetailActivity for phones.
Declare 2 XML layout files for MasterFragment:
- 布局/ fragment_master.xml - 添加此只有InnerListFragment内
＆LT;片断＆gt;标记 - 布局sw600dp / fragment_master.xml（用于平板电脑> 7） - 同时添加InnerListFragment和InnerDetailFragment
＆LT;片断＆gt;标记
- layout/fragment_master.xml - add inside this only the InnerListFragment
<fragment>tag - layout-sw600dp/fragment_master.xml (for tablets >7") - add both InnerListFragment and InnerDetailFragment
<fragment>tags.
现在，我不会详细说明所有的Java code在这里，但里面MasterFragment.java，你需要检查，如果该设备是一个平板电脑，让你知道其中2片段是活跃在在屏幕上。
Now, I won't detail all your java code here, but inside MasterFragment.java, you need to check if the device is a tablet so that you know which of the 2 fragments are active on the screen.
-
如果它是一个电话，只InnerListFragment是可见的。因此，只需添加列表，onClickListener将开始InnerDetailActivity中，你需要把InnerDetailFragment。
if it's a phone, only InnerListFragment is visible. So just add the list and onClickListener will start InnerDetailActivity in which you need to put InnerDetailFragment.
如果它是一个平板电脑，无论是内部片段可见。不要一开始就一个列表项一下，当一个新的活动，只是有一个参考的内部MasterFragment两个片段，所以你可以在它们之间进行通信。
if it's a tablet, both Inner fragments are visible. Don't start a new activity when clicking on a list item, just have a reference to both fragments inside MasterFragment so you can communicate between them.
这是一般的想法。如果您还有疑问，请询问。
That's the general idea. If you still have questions, do ask.
这篇关于里面ViewPager Android的主/从流的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
