webview transittions with scenes

benyemi · October 17, 2015, 4:46pm

I have a problem that seems to be common and corona STILL hasnt fixed. I have a main menu scene and a webscene that shows a live a website. I can go from the menu screen to the webscene and go back to the menu screen fine. The problem is when I go back to webscene a gain all I get is a blank screen. every other option I tried besides the one below cause a crash or no webpage to appear even once. Please Help thanx

this is in my createscene of the internet scene:

local function listener( event ) &nbsp;&nbsp;&nbsp; local shouldLoad = true &nbsp;&nbsp;&nbsp; local url = event.url &nbsp;&nbsp;&nbsp; if 1 == string.find( url, "corona:close" ) then &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- Close the web popup &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shouldLoad = false &nbsp;&nbsp;&nbsp; end &nbsp;&nbsp;&nbsp; if event.errorCode then &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- Error loading page &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print( "Error: " .. tostring( event.errorMessage ) ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shouldLoad = false &nbsp;&nbsp;&nbsp; end &nbsp;&nbsp;&nbsp; return shouldLoad end local options = { &nbsp;&nbsp;&nbsp; hasBackground = false, &nbsp;&nbsp;&nbsp; baseUrl = system.DocumentsDirectory, &nbsp;&nbsp;&nbsp; urlRequest = listener } native.showWebPopup( 20, 45, 430, 270, "https://www.youtube.com/watch?v=rujCyD\_nEdo", options )

and this is in my exitScene:

native.cancelWebPopup()

rob · October 17, 2015, 6:14pm

First, you should probably be using native.newWebView() instead of native.showWebPopup().

Next you probably should be explicitly removing it in scene:hide()'s “will” phase, and creating it new in scene:show()'s did phase.

Rob

benyemi · October 19, 2015, 1:13am

Thank you, can you show me an expicit example of how scene:hide() and scene:show is used? I looked at the documentation and couldn’t find an example

rob · October 19, 2015, 1:20am

local composer = require( "composer" ) local scene = composer.newScene() local webView function scene:show( event ) &nbsp;&nbsp; &nbsp;local sceneGroup = self.view &nbsp;&nbsp; &nbsp;if event.phase == "did"&nbsp; then &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webView = native.newWebView( display.contentCenterX, display.contentCenterY - 25, display.contentWidth, display.contentHeight - 50 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webView:request( "http://someurl.com" ) &nbsp;&nbsp;&nbsp; end end function scene:hide( event ) &nbsp;&nbsp; &nbsp;local sceneGroup = self.view &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;if event.phase == "will" then&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if webView then &nbsp; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp; webView:removeSelf() &nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; webView = nil &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; end &nbsp;&nbsp; &nbsp;end end scene:addEventListener( "show", scene ) scene:addEventListener( "hide", scene )

Or something like that.

rob · October 17, 2015, 6:14pm

First, you should probably be using native.newWebView() instead of native.showWebPopup().

Next you probably should be explicitly removing it in scene:hide()'s “will” phase, and creating it new in scene:show()'s did phase.

Rob

benyemi · October 19, 2015, 1:13am

Thank you, can you show me an expicit example of how scene:hide() and scene:show is used? I looked at the documentation and couldn’t find an example

rob · October 19, 2015, 1:20am

local composer = require( "composer" ) local scene = composer.newScene() local webView function scene:show( event ) &nbsp;&nbsp; &nbsp;local sceneGroup = self.view &nbsp;&nbsp; &nbsp;if event.phase == "did"&nbsp; then &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webView = native.newWebView( display.contentCenterX, display.contentCenterY - 25, display.contentWidth, display.contentHeight - 50 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webView:request( "http://someurl.com" ) &nbsp;&nbsp;&nbsp; end end function scene:hide( event ) &nbsp;&nbsp; &nbsp;local sceneGroup = self.view &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;if event.phase == "will" then&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if webView then &nbsp; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp; webView:removeSelf() &nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; webView = nil &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; end &nbsp;&nbsp; &nbsp;end end scene:addEventListener( "show", scene ) scene:addEventListener( "hide", scene )

Or something like that.