Android TextView has height and width of 0

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野性不改
野性不改 2020-12-08 02:33

I have a small project where I want to reuse a certain UI component a few time so I created a widget by expanding a ViewGroup. In that ViewGroup I inflated a view that conta

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  •  半阙折子戏
    2020-12-08 03:20

    So, I put a bounty on this one, and here is what I've found.

    Inflating with a null reference is A Bad Idea(TM). Essentially, that View won't get the proper layout parameters it needs (its parent sets a whole bunch of them, with a whole bunch of magic/logic involved). So inflating into null means no parents, and no inherited layout parameters. One can manually set a number of these parameters, but due to the magic involved it might not solve your problem.

    The "solution(s)" that I've come up with involve; using include (when you know how many you need) and pulling them into code, or inflating to a parent (when you need true dynamic, N things). And of course, the XML you inflate will have ID collisions, so I go about it by grabbing the last child (e.g. getChildAt(getChildCount()-1) ) of whatever I'm looking for, etc.

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