Proxy, its child fragment) gets swapped out. On click handler so that when the button gets pressed, the fragment (and by The first thing we need to do is wire up the To keep things as simple as possible, I included all of the code in a single java file, which means I used a couple of inner classes where I might not otherwiseĭemonstrate the workaround with as little code as possible. We’re ready to start the actual programming. The layouts are pretty contrivedįor the purpose of this demonstration they largely consist of a frame to hold a subsequent layout.ĥ. In our /layout folder we have three layouts: one for theĪctivity, one for the parent fragment, and one for the child fragment. In the /res folder, create a new folder called Package explorer, find Android Tools, and choose Add Support Library.ģ. Right-click your newly created project in the Eclipse Every Fragment in the Navigation Stack must extend NavigationFragment in order to properly be displayed and navigated. If you find yourself struggling, or aren’t familiar with fragments, try starting with my introduction to fragments.ġ. The single instance of the NavigationManagerFragment will easily handle the presenting and dismissing of Fragments as they are created and added or removed from the stack. The code below demonstrates my approach in the most strippedĭown way I could think of to present the material that said, it is more advanced than most of my TechRepublic tutorials. Not pretty.Īfter several hours of trial and error, I came up
Time I tried to slide in a new fragment ( Figure A). The result was a jarring white flash every Whenever I did a replace of the fragment at the activity, the UIįramework dropped the child view before the animation happened. In other words, my activity hosted a fragment,Īnd that fragment hosted a child fragment. One particularly frustrating issue for me wasĪpplying custom transitions to fragments that hosted child fragments. Run across such a variety of devices, the APIs still have some rough edges. However, with so much work put into allowing fragments to Provides superior flexibility when it comes to providing an optimal userĮxperience across devices, with displays ranging from less than 4 inches to overġ0. Introduction of nested fragments, and fragment transitions, there isn’t a good reason to write a new application and not use With the advent of Android‘s fragment support library, the For more info, visit our Terms of Use page. This may influence how and where their products appear on our site, but vendors cannot pay to influence the content of our reviews.
We may be compensated by vendors who appear on this page through methods such as affiliate links or sponsored partnerships. Francis presents a workaround for an issue that he suspects will plague Android developers for some time: applying custom transitions to fragments that host child fragments. Import 4.app.The good, the bad, and the ugly: Working with Android’s child fragment manager and custom transitions
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