Forum Archive

Updating a webview

obtom
Apr 06, 2016 - 22:07

Hi,

I'm fairly new to Pythonista development and was struggling to get the contents of a webview to change when I click a button in my script.

The script has a UI, on which I've dropped a button and a webview. I've wired the button event to 'ButtonClick' (below), and I know this gets called as I've tested it with a console alert. I've tried alternatives such as referring to the original webview instance and also via the sender superview.

What I'm seeing is that the webview gets updated initially, but never seems to show the effect of the new contents in the button click ('my second heading'). What am I doing wrong?

Thanks!
Tom

===

import ui
import tempfile
import os
import console

def ButtonClick(sender):    
    v1 = sender.superview
    #w=v1['webview1']
    #console.alert(str(w))
    w.load_html('<!DOCTYPE html><html><body><h1>My Second Heading</h1></html>')
    #w.present()

v = ui.load_view('Test')

w=v['webview1']
w.load_html('<!DOCTYPE html><html><body><h1>My First Heading</h1></html>')

v.present('fullscreen')
ccc
Apr 06, 2016 - 22:57

Your code works exactly as expected for me. "My First Heading" is displayed initially in the WebView. After a button press, "My Second Heading" is displayed in the WebView.

obtom
Apr 07, 2016 - 21:38

@ccc Thanks ccc. A bit embarrassing but I'd left in the console alert on my script and that seems to prevent the webview from updating even after you acknowledge the alert. Without it, it works for me too.