How to know the possible response when using Android framework's method?

Asked Jan 25 '18 at 03:52

Active Jan 31 '18 at 06:43

Viewed 44 times

I reference a sample code to practice Android development and some code are as follows:

if (response.has("err") && response.optInt("err") != 0) {
    Log.e("error", "There are errors when downloading data.");
}

I wonder how to know what the responses may be? E.g. the sample code used "response.optInt("err") != 0", which means one possible response is "0", but how can I know other possible responses?

Only can I reference the API docs? Is it possible to show a popup API doc window when mouse hover over on the code, which looks like the JavaDoc on Eclipse?

edited Jan 31 '18 at 06:43

asked Jan 25 '18 at 03:52

Jack

You can refer to Android docs or refer to subject whose response you want to check – Zaid Mirza Jan 25 '18 at 04:39
Hi @ZaidMirza, could you please give the URL of the API docs? Thank you. – Jack Jan 25 '18 at 07:09
1

https://developer.android.com/training/index.html – Zaid Mirza Jan 25 '18 at 07:49

How to know the possible response when using Android framework's method?

0 Answers0