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Kevin Grifo
9,824 PointsWhere does the setWeather method come from?
When binding the currentWeather object Ken uses the statement
binding.setWeather(displayWeather);
I was just curious as to where the setWeather method/function is located. What class? I remember Ken stating that a class is automatically generated when enabling and using Java binding called ActivityMainBinding. Is there where this particular method is located? Any help or clarification would truly be appreciated.
Thanks

Boban Talevski
24,793 PointsIt looks like you are right that it's in that automatically generated class ActivityMainBinding.java
. I just couldn't find it to see it (CTRL + B
doesn't seem to work). The method name is most likely derived from what we set as a variable name in the layout file, i.e. weather
, so the generated method gets named setWeather()
.
1 Answer

Evan Cornish
4,762 Pointsin the first video, where we were creating the edits to the activity_main.xml file, we made this tag:
<variable
name = "weather"
type = "com.example.stormy.CurrentWeather"/>
the library generates the needed method calls. We told it to call it "setWeather" when we chose that name to be weather in that xml file.
Ben Deitch
Treehouse TeacherBen Deitch
Treehouse TeacherHey Kevin! I'm not super familiar with data binding, but you should be able to use CMD or CTRL + B on 'setWeather' to jump you to its declaration.