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讀取XML我有XML是list_img.xml安卓xmppullpaser從URL
<employees>
<emp>
<name>jame</name>
<gender>male</gender>
<age>36</age>
</emp>
<emp>
<name>natalie</name>
<gender>female</gender>
<age>28</age>
</emp>
<emp>
<name>phil</name>
<gender>male</gender>
<age>30</age>
</emp>
<emp>
<name>frank</name>
<gender>male</gender>
<age>33</age>
</emp>
這是代碼，我讀list_img.xml如果是在資源文件夾
public class FragmentImg extends Fragment {
static final String KEY_EMP = "emp";
static final String KEY_NAME = "name";
static final String KEY_GENDER = "gender";
static final String KEY_AGE = "age";
List<HashMap<String,String>> imgHashmap;
List<ClassImg> imgList = null;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_img, container, false);
ImgActivity activity = (ImgActivity) getActivity();
String uri = "list_img.xml";
GridView gv_img = (GridView)view.findViewById(R.id.gridViewImg);
try {
XmlPullParserImg parser_Img = new XmlPullParserImg();
imgList = parser_Img.parse(getActivity().getAssets().open(uri));
BinderDataImg bd_img = new BinderDataImg(getActivity(), imgHashmap);
gv_img.setAdapter(bd_img);
gv_img.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent i = new Intent();
i.setClass(getActivity(), ImgDetail.class);
startActivity(i);
}
});
} catch (IOException e) {
e.printStackTrace();
}
return view;
}
public class XmlPullParserImg {
private ClassImg c_i;
private String text;
public XmlPullParserImg() {
danhsachList = new ArrayList<ClassImg>(); }
public List<ClassImg> parse(InputStream is) {
XmlPullParserFactory factory = null;
XmlPullParser parser = null;
try {
imgHashmap = new ArrayList<HashMap<String,String>>();
HashMap<String,String> map = null;
factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(true);
parser = factory.newPullParser();
parser.setInput(is, null);
int eventType = parser.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
String tagname = parser.getName();
switch (eventType) {
case XmlPullParser.START_TAG:
if (tagname.equalsIgnoreCase("KEY_EMP")) {
c_i = new ClassImg();
map = new HashMap<String,String>();
}
break;
case XmlPullParser.TEXT:
text = parser.getText();
break;
case XmlPullParser.END_TAG:
if (tagname.equalsIgnoreCase("KEY_EMP")) {
imgList.add(c_ds);
imgHashmap.add(map);
} else if (tagname.equalsIgnoreCase(KEY_NAME)) {
c_i.setName(text);
map.put(KEY_NAME, text);
} else if (tagname.equalsIgnoreCase(KEY_GENDER)) {
c_i.setGender(text);
map.put(KEY_GENDER, text);
} else if (tagname.equalsIgnoreCase(KEY_AGE)) {
c_i.setAge(text);
map.put(KEY_AGE, text);
break;
default:
break;
}
eventType = parser.next();
}
} catch (Exception e) {
e.printStackTrace();
}
return imgList;
}
}
}
如此，一切都好。之後，我被上傳到list_img.xml收存箱
這是鏈接https://www.dropbox.com/s/lh2ucpbvpqloa3e/list_img.xml?dl=0
和更改代碼
public class FragmentImg extends Fragment {
static final String KEY_EMP = "emp";
static final String KEY_NAME = "name";
static final String KEY_GENDER = "gender";
static final String KEY_AGE = "age";
List<HashMap<String,String>> imgHashmap;
List<ClassImg> imgList = null;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_img, container, false);
ImgActivity activity = (ImgActivity) getActivity();
String uri = "https://www.dropbox.com/s/lh2ucpbvpqloa3e/list_img.xml?dl=0";
GridView gv_img = (GridView)view.findViewById(R.id.gridViewImg);
try {
XmlPullParserImg parser_Img = new XmlPullParserImg();
imgList = parser_Img.parse(getActivity().getAssets().open(uri));
BinderDataImg bd_img = new BinderDataImg(getActivity(), imgHashmap);
gv_img.setAdapter(bd_img);
gv_img.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent i = new Intent();
i.setClass(getActivity(), ImgDetail.class);
startActivity(i);
}
});
} catch (IOException e) {
e.printStackTrace();
}
return view;
}
public class XmlPullParserImg {
private ClassImg c_i;
private String text;
public XmlPullParserImg() {
danhsachList = new ArrayList<ClassImg>(); }
public List<ClassImg> parse(InputStream is) {
XmlPullParserFactory factory = null;
XmlPullParser parser = null;
try {
imgHashmap = new ArrayList<HashMap<String,String>>();
HashMap<String,String> map = null;
factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(true);
parser = factory.newPullParser();
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
parser.setInput(is, null);
int eventType = parser.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
String tagname = parser.getName();
switch (eventType) {
case XmlPullParser.START_TAG:
if (tagname.equalsIgnoreCase("KEY_EMP")) {
c_i = new ClassImg();
map = new HashMap<String,String>();
}
break;
case XmlPullParser.TEXT:
text = parser.getText();
break;
case XmlPullParser.END_TAG:
if (tagname.equalsIgnoreCase("KEY_EMP")) {
imgList.add(c_ds);
imgHashmap.add(map);
} else if (tagname.equalsIgnoreCase(KEY_NAME)) {
c_i.setName(text);
map.put(KEY_NAME, text);
} else if (tagname.equalsIgnoreCase(KEY_GENDER)) {
c_i.setGender(text);
map.put(KEY_GENDER, text);
} else if (tagname.equalsIgnoreCase(KEY_AGE)) {
c_i.setAge(text);
map.put(KEY_AGE, text);
break;
default:
break;
}
eventType = parser.next();
}
} catch (Exception e) {
e.printStackTrace();
}
return imgList;
}
}
}
我無法從URL中讀取list_img.xml。
爲什麼？如何解決它？
感謝您的閱讀。