Android simplifies Findviewbyid type conversions with generics

Used to Findviewbyid, each use also have to add cast to see a video today (according to the IDE used in the video inference, it should be a few years ago video), using a method, you can not use Findviewbyid each time to add cast.

I refine it according to the wording in the video, specifically:

Create a baseactivity and let it inherit activity, adding the following method to it:

         because it is findview, the generic type should inherit viewprotected <t extends view> T genericfindviewbyid (int id) {//return return to View, Plus generic Treturn (T) Findviewbyid (ID);}

After that, the activity will be used to inherit baseactivity, and then use the Genericfindviewbyid directly instead of the Findviewbyid.

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Android simplifies Findviewbyid type conversions with generics