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With huge trees like the one you mentioned, no matter how you display it, it will be very difficult to find what you are looking for even in a filtered tree. I have encountered similar issues (10s of thousands of nodes and more than a million leaves) and in the end we decided that for large trees, filtering does not make sense from a UI perspective. ...


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Seeing as this is a UX form, it would really help knowing what the user needs are. That is, what is the nature of the nodes, and what will users try/need to do with them and why. Also, is there any additional data users may be able to filter nodes by, and is it a single level hierarchy or an unlimited one (Can A have an A child that has an A child and so on ...


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You question was not clear enough for me. I will reply it as much as I can. I believe that in this case, applying a couple of approach together is the most usable. I do that in banking systems and get positive reactions when finding complex products / transactions etc... I would use the combination of those three autocomplete text area: It is important ...


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Currently I'm in a similar situation. We both agree digging through the tree doesn't work. Does the end-user have a mental model of tree in mind when they think about the navigation? What about fuzzy searching? This what a proposed to a developer today. When you type in a input-field the system will recognize the pattern and show the correct ...


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I would suggest an Expandable List View in addition to tabs: So, you'd use the tabs to let the user select the section, and represent the subsections with group headers in an ExpandableListView. Now, if your data does not lend itself to this kind of segmentation, I'd suggest a section landing page, or default to one and let the user change it in the ...


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For the main sections you could use a spinner navigation in the Action Bar. So the active/visible section would display as a spinner rather than a static title. The sub sections would make sense to remain as tabs as you have mocked up. This pattern is seen in many apps including a few Google ones. Spinners ...



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