How to check does element is present(exist)?

Support
1

I need to check if there is any element before any action is taken. I.g. If I do not enter required fields, the text “required field” must appear below the field. I see that Appium has a method isDisplayed(), but this method only works if the element is already displayed.

2

error text is normally some kind of element. it is left just check that this element exist when error expected and does not exist when no error expected.

3

I just need to test visibility. If Appium doesn’t have the solution, does Selenium has?

4

first check that element exist. if it exists then you can check if it visible.

5

isDisplayed() method only check does it displayed on screen, it ignores hidden elements.

6

if el does not exist -> el.isDisplayed() = NullPointerException