Attempt to index global 'webview' (a null value) - (SOLVED)

Questions
#1

I’m trying to use the webview but I have this error:
attempt to index global ‘webview’ (a null value)

I want to know do I need to do something for the webview to be recognized by the defold mechanism? I just added the dependency and from what I understand it doesn’t recognize this function.

thanks.

#2

We only support webview for Android/iOS.
Which platform are you testing?

1 Like
#3

hello, I’m trying on android.

#4

Have you fetched the libraries?

image

1 Like
#5

Yes, I did. last time I had to put something before it was a web socket library.
My code to eliminate doubts:

function init(self)
	msg.post(".", "acquire_input_focus")
	msg.post("@render:", "use_fixed_fit_projection", { near = -1, far = 1 })

end

local player_feedback_url = "http://www.defold.com"

local function webview_callback(self, webview_id, request_id, type, data)
	if type == webview.CALLBACK_RESULT_URL_ERROR then
		-- An error occurred!
		-- Let's close the webview and set a label with some helpful text!
		webview.destroy(webview_id)
		label.set_text("#label", "Player feedback not available at this moment.")

	elseif type == webview.CALLBACK_RESULT_URL_LOADING then
		-- Make sure the player isn't navigating away from the feedback URL.
		if data.url ~= player_feedback_url then
			return false
		end
	end
end

local feedback_webview = webview.create(webview_callback)
webview.open(feedback_webview, player_feedback_url)
webview.set_visible(feedback_webview, 1)
webview.set_position(feedback_webview, 0, 0, -1, 500)
#6

Is the last part outside of Defolds run time functions? Tried putting that into your init?

1 Like
#7

I did what @Jerakin said
now appears on the screen but does not load the site

#8

the webview worked on android after i put it inside init it worked with open_raw and with open. had a part of the code returned false remove and opened the open. Thanks to everyone who responded.

#9

Yeah, basically all your script logic need to be called from the lifecycle functions such as init, update etc. Especially code which uses code from extensions or the Defold API functions.

2 Likes