问题

I compiled and installed QtWebEngine + QML plugins on Raspberry Pi 2 with Yocto recipes using information in this tutorial using Yocto dizzy branch and run the following script:

root@raspberrypi2:~# more chromium.qml 
import QtQuick 2.1
import QtQuick.Controls 1.1
import QtWebEngine 0.9
ApplicationWindow {
    width: 1280
    height: 720
    color: "lightgray"
    visible: true
    WebEngineView {
        id: webview
        url: "file:///home/root/hello.html"
        anchors.fill: parent
    }
}

Note that the IMPORT VERSION 0.9, not 1.0

I have tried both url: "file:///home/root/hello.html" and url: "https://duckduckgo.com" but all I am getting is a red screen with the black square mouse pointer.

root@raspberrypi2:~# more hello.html 
<html>
<header><title>This is title</title></header>
<body>
Hello world
</body>
</html>

On the console:

root@raspberrypi2:~# /usr/bin/qt5/qmlscene -v -platform eglfs chromium.qml 
[0605/163256:WARNING:resource_bundle.cc(280)] locale_file_path.empty()
[0605/163257:WARNING:proxy_service.cc(890)] PAC support disabled because there is no system implementation
[0605/163257:WARNING:resource_bundle.cc(280)] locale_file_path.empty()

PAC support disabled ... seems to be a none issue read here

UPDATE

I have followed this step-by-step tutorial (Poky fido branch) and then added qtwebengine (import QtWebEngine 1.0 this time) and qtwebengine-qmlplugins in my Yocto Image and created again my image with bitbake

When I booted and ran /usr/bin/qt5/qmlscene -v -platform eglfs chromium.qml I could see my HTML page.

I have tested a couple of dozen of websites and not all page show. So their might be a little more to it.

e.g.

http://wikipedia.com shows!!! 
http://google.com doesn't show ???
http://https://stackoverflow.com/ shows!!!
http://facebook.com doesn't

Any further pointers are welcome

UPDATE 20160309

root@raspberrypi2:~/app# uname -a
Linux raspberrypi2 4.1.10 #1 SMP PREEMPT Wed Feb 17 16:51:44 CET 2016 armv7l GNU/Linux


root@raspberrypi2:~/app# lsb_release -a
LSB Version:    core-4.1-noarch:core-4.1-arm
Distributor ID: poky
Description:    Poky (Yocto Project Reference Distro) 2.0.1
Release:    2.0.1
Codename:   jethro

QML

root@raspberrypi2:~/app# more chromium.qml 
import QtQuick 2.1
import QtQuick.Controls 1.1
import QtWebEngine 1.0

ApplicationWindow {
    width: 800
    height: 600
    color: "lightgray"
    visible: true
    WebEngineView {
        id: webview
        //url: "http://raspberrypi.stackexchange.com/" // PASS
        //url: "http://google.com" // FAIL
        //url: "http://video.webmfiles.org/big-buck-bunny_trailer.webm" // PASS but no Sound
        //url: "https://youtube.com/" // FAIL
        //url: "https://opentokrtc.com/anybots" // FAIL
        //url: "http://speedof.me/" // PASS
        url: "http://facebook.com"  // FAIL
        anchors.fill: parent
    }
}

回答1:

Maybe it is a little late but I tried to build QtWebEngine in Qt 5.6 alpha and it works properly for me on Raspberry Pi 2 for all the URLs you listed. This is a demo. Maybe they fixed something in QtWebEngine, so you can try 5.6-alpha.

回答2:

Unfortunately, the branch jethro for meta-qt5 the qtwebengine caused many problems.

I was happy to see that in this branch master with chromium 45:

Branch jethro: QT_MODULE BRANCH CHROMIUM = "40.0.2214-based"

Branch master: QT_MODULE BRANCH CHROMIUM = "45-based"

I will try to build;)

来源：https://stackoverflow.com/questions/30682749/running-simple-qtwebengine-app-on-raspberry-pi-2-page-not-showing

标签

qt5

raspberry-pi2

yocto

qtwebengine

Running simple QtWebEngine app on Raspberry Pi 2, page not showing

问题

UPDATE

UPDATE 20160309

QML

回答1:

回答2: