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i have xml is list_img.xml

<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>

this is code I read list_img.xml if it is in asset folder

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;
    }
}

}

so, everything is ok. and after that I was upload list_img.xml to dropbox
this is link https://www.dropbox.com/s/lh2ucpbvpqloa3e/list_img.xml?dl=0
and I change code 

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;
    }
}
}

I can't read list_img.xml from url.
why that ? how to fix it ?
thank you for reading.

ArK
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abcd1234
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1 Answers1

0

getActivity().getAssets().open(uri) is the problem: your external URI is not something that can be found in the assets of the application itself.

You need to use an HTTP request API to get an InputStream for the provided URI such as OkHttp, UrlConnection, Volley, etc.

ByteWelder
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