DeviceFilterXmlEquivalenceTester.java 文件源码

private static Set<DeviceFilter> getDeviceData(Resources resources, int xmlResourceId) {
    Set<DeviceFilter> ans = new HashSet<>();
    try {
        XmlResourceParser xml = resources.getXml(xmlResourceId);

        xml.next();
        int eventType;
        while ((eventType = xml.getEventType()) != XmlPullParser.END_DOCUMENT) {

            switch (eventType) {
                case XmlPullParser.START_TAG:
                    if (xml.getName().equals("usb-device")) {
                        AttributeSet as = Xml.asAttributeSet(xml);
                        Integer vendorId = parseInt( as.getAttributeValue(null, "vendor-id"));
                        Integer productId = parseInt( as.getAttributeValue(null, "product-id"));
                        ans.add(new DeviceFilter(vendorId, productId, null));
                    }
                    break;
            }
            xml.next();
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return ans;
}