Android XML using SAX Parser

Question

<MenuByRole InstanceID="519" RoleID="614">
    <MainMenu Id="2298">Home</MainMenu>
    <MainMenu Id="2431">My Results</MainMenu>
    <MainMenu Id="2415">My Attendance</MainMenu>
</MenuByRole>

这是我的 XML 文件，我已经检索了此 XML 文件中的所有 ID 值。这是以下代码，

if (qName.equalsIgnoreCase("MainMenu"))
        {
      id = attributes.getValue("Id");
      MainMenu = true;
    }

但是我想根据名称检索特定的 Id 值。例如我想在这里借助家庭名称检索 ID 值 2298

Answer 1

下面是

完整的解析代码。您将获得listMenuId的所有ID和listMenuName的所有姓名

String currentValue = "";
String currentTag = "";
        ArrayList<String> listMenuId;
        ArrayList<String> listMenuName;
        // Called when tag starts
        @Override
        public void startElement(String uri, String localName, String qName,Attributes attributes) throws SAXException {
            currentTag = localName;
            if(currentTag.equalsIgnoreCase("MenuByRole")){
                listMenuId = new ArrayList<String>();
                listMenuName = new ArrayList<String>();
            }
            if(currentTag.equalsIgnoreCase("MainMenu")){
                listMenuId.add(attributes.getValue("Id"));
            }
        }
        // Called when tag closing
        @Override
        public void endElement(String uri, String localName, String qName)
                throws SAXException {
        }
        // Called to get tag characters
        @Override
        public void characters(char[] ch, int start, int length)
                throws SAXException {
            currentValue = currentValue + new String(ch, start, length);
            if(currentTag.equalsIgnoreCase("MainMenu"))
                listMenuId.add(currentValue);
            }
    }

Answer 2

    public class MainMenu {
            private Long id;
            private String Name;
            public Long getId() {
                return id;
            }
            public void setId(Long id) {
                this.id = id;
            }
            public String getName() {
                return Name;
            }
            public void setName(String name) {
                Name = name;
            }
        }
    ArrayList<MainMenu> munuIDList;
        MainMenu oMainMenu;
        boolean isReadData;
        String sName;
        @Override
        public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
            if(localName.equalsIgnoreCase("MenuByRole")){
                munuIDList = new ArrayList<MainMenu>();
                isReadData = false;
            }
            if(localName.equalsIgnoreCase("MainMenu")){
                isReadData = true;
                oMainMenu = new MainMenu();
                oMainMenu.setId(attributes.getValue("Id"));
            }
        }
        @Override
        public void endElement(String uri, String localName, String qName)
                throws SAXException {
            if(localName.equalsIgnoreCase("MainMenu"))
                oMainMenu.setName(sName);
            sName = null;
            isReadData = false;
            }
        }
        @Override
        public void characters(char[] ch, int start, int length)
                throws SAXException {
            if(isReadData) {
            sName = new String(ch, start, length);
            }
    }
MainActivity
public class MainActivity extends Activity implements OnItemClickListener{
ArrayLsit<MainMenu> lstMainMenu;
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
                myListView = (ListView) findViewById(R.id.myListView);
               myListView.setOnItemClickListener(this);
}
}
@Override
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        // TODO Auto-generated method stub
        Toast.makeText(MainActivity.this, lstMainMenu.get(arg2).getId(), Toast.LENGTH_SHORT).show();
    }