Does gluon support Xpath in IOS

Question

I tried running a gluon project that uses XML to initialize the project. Seeing the following error when running the application on an IOS device:

Caused by: java.lang.RuntimeException: XPathFactory#newInstance() failed to create an XPathFactory for the default object model: http://java.sun.com/jaxp/xpath/dom with the XPathFactoryConfigurationException: javax.xml.xpath.XPathFactoryConfigurationException: No XPathFactory implementation found for the object model: http://java.sun.com/jaxp/xpath/dom at javax.xml.xpath.XPathFactory.newInstance(XPathFactory.java:76

Note: Application runs successfully on Desktop Windows/Mac and on Android platform.

Is the Xpath not supported on IOS devices with Gluon

Answer 1

As you can read in the exception:

No XPathFactory implementation found for the object model: http://java.sun.com/jaxp/xpath/dom at javax.xml.xpath.XPathFactory.newInstance...

So all you need to do is provide a valid implementation.

For instance, adding this to your build.gradle:

dependencies {
    compile 'com.gluonhq:charm:4.4.0'
    compile 'xalan:xalan:2.7.2'
}

Probably there are others like 'com.sun.org.apache:jaxp-ri:1.4'.

I've tried it for this code only:

public BasicView(String name) {
    super(name);

    XPath newXPath = XPathFactory.newInstance().newXPath();
}

and I don't get the exception anymore.