在ImageView BlackBerry上设置图像源 [英] Set Image Source on ImageView BlackBerry

问题描述

如何在ImageView上将imageSource设置为URL?

How to set imageSource on ImageView as url?

   ImageView {
               imageSource: "http://myrrix.com/wp-content/uploads/2012/06/stackoverflow.png"
             }

这不起作用，我只能在ImageView上将图像设置为"asset:enter code here///images/myimage.png".如何将来源设置为来自URL?

This is not working, I can only set the image as "asset:enter code here///images/myimage.png" on the ImageView. How to set the source to be from URL?

推荐答案

您不能直接从Web加载图像.您需要使用QNetworkRequest，QNetworkAccessManager和QNetworkReply类&获得回复时，将QByteArray加载到ImageView中.

You can not directly load image from web. You need to make a network request using QNetworkRequest, QNetworkAccessManager, and QNetworkReply classes & on getting reply load that QByteArray in ImageView.

QNetworkAccessManager* netManager = new QNetworkAccessManager();
if (netManager) {
    QUrl url(ImageUrl);
    QNetworkRequest networkRequest(url);
    QNetworkReply* networkReply = netManager->get(networkRequest);
    connect(networkReply, SIGNAL(finished()), this, SLOT(onReply()));
}

&在onReply()插槽中，您可以加载图像:

& in onReply() slot you can load image:

void App::onReply(QNetworkReply* reply) {
    if (reply->error() != QNetworkReply::NoError) {
        qDebug() << "Image not available or any error";
        return;
    }
    Image image = Image(reply->readAll());
    imageView->setImage(image);
}    

这篇关于在ImageView BlackBerry上设置图像源的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！