我做了一个包装类，终于解决了这个问题。（我使用的是 Java 而不是 Scala。）
Persister serializer = new Persister();
serializer.read(AFoo.class,
new NodeReader(new PullReader(new XmlPullParserWrapper(r.getXml(resId)))).readRoot())
在哪里
public class XmlPullParserWrapper implements XmlPullParser {
private XmlPullParser mParser;
public XmlPullParserWrapper(XmlPullParser parser) {
mParser = parser;
}
@Override
public void setFeature(String name, boolean state) throws XmlPullParserException {
mParser.setFeature(name, state);
}
@Override
public boolean getFeature(String name) {
return mParser.getFeature(name);
}
@Override
public void setProperty(String name, Object value) throws XmlPullParserException {
mParser.setProperty(name, value);
}
@Override
public Object getProperty(String name) {
return mParser.getProperty(name);
}
@Override
public void setInput(Reader in) throws XmlPullParserException {
mParser.setInput(in);
}
@Override
public void setInput(InputStream inputStream, String inputEncoding) throws XmlPullParserException {
mParser.setInput(inputStream, inputEncoding);
}
@Override
public String getInputEncoding() {
return mParser.getInputEncoding();
}
@Override
public void defineEntityReplacementText(String entityName, String replacementText) throws XmlPullParserException {
mParser.defineEntityReplacementText(entityName, replacementText);
}
@Override
public int getNamespaceCount(int depth) throws XmlPullParserException {
return mParser.getNamespaceCount(depth);
}
@Override
public String getNamespacePrefix(int pos) throws XmlPullParserException {
return mParser.getNamespacePrefix(pos);
}
@Override
public String getNamespaceUri(int pos) throws XmlPullParserException {
return mParser.getNamespaceUri(pos);
}
@Override
public String getNamespace(String prefix) {
return mParser.getNamespace(prefix);
}
@Override
public int getDepth() {
return mParser.getDepth();
}
@Override
public String getPositionDescription() {
return mParser.getPositionDescription();
}
@Override
public int getLineNumber() {
return mParser.getLineNumber();
}
@Override
public int getColumnNumber() {
return mParser.getColumnNumber();
}
@Override
public boolean isWhitespace() throws XmlPullParserException {
return mParser.isWhitespace();
}
@Override
public String getText() {
return mParser.getText();
}
@Override
public char[] getTextCharacters(int[] holderForStartAndLength) {
return mParser.getTextCharacters(holderForStartAndLength);
}
@Override
public String getNamespace() {
return mParser.getNamespace();
}
@Override
public String getName() {
return mParser.getName();
}
@Override
public String getPrefix() {
return "";
}
@Override
public boolean isEmptyElementTag() throws XmlPullParserException {
return mParser.isEmptyElementTag();
}
@Override
public int getAttributeCount() {
return mParser.getAttributeCount();
}
@Override
public String getAttributeNamespace(int index) {
return mParser.getAttributeNamespace(index);
}
@Override
public String getAttributeName(int index) {
return mParser.getAttributeName(index);
}
@Override
public String getAttributePrefix(int index) {
return "";
}
@Override
public String getAttributeType(int index) {
return mParser.getAttributeType(index);
}
@Override
public boolean isAttributeDefault(int index) {
return mParser.isAttributeDefault(index);
}
@Override
public String getAttributeValue(int index) {
return mParser.getAttributeValue(index);
}
@Override
public String getAttributeValue(String namespace, String name) {
return mParser.getAttributeValue(namespace, name);
}
@Override
public int getEventType() throws XmlPullParserException {
return mParser.getEventType();
}
@Override
public int next() throws XmlPullParserException, IOException {
return mParser.next();
}
@Override
public int nextToken() throws XmlPullParserException, IOException {
return mParser.nextToken();
}
@Override
public void require(int type, String namespace, String name) throws XmlPullParserException, IOException {
mParser.require(type, namespace, name);
}
@Override
public String nextText() throws XmlPullParserException, IOException {
return mParser.nextText();
}
@Override
public int nextTag() throws XmlPullParserException, IOException {
return mParser.nextTag();
}
}