我有显示列表项的活动,在列表项中我只想显示地点的名称并且我能够显示它但是当我单击我想要与该地点名称相关的项目时,它会显示另一个的详细信息活动,即位置详细信息。所以请帮我解决我的问题,我是 android 新手。
这是我的两个活动代码:
locationList=( ListView)findViewById(R.id.list_Surroundings);
// Hashmap for ListView
ArrayList<HashMap<String, String>> locationOfList = new ArrayList<HashMap<String, String>>();
adapter = new SimpleAdapter(this, locationOfList,
R.layout.list_item1,
new String[] { TAG_NAME }, new int[] {
R.id.name});
locationList.setAdapter(adapter);
// Creating JSON Parser instance
JSONParser jParser = new JSONParser();
// getting JSON string from URL
JSONObject json = jParser.getJSONFromUrl(url);
try {
// Getting Array of Category
location=json.getJSONArray(TAG_LOCATION);
//looping through all categories
for(int i = 0; i < location.length(); i++){
JSONObject c = location.getJSONObject(i);
JSONObject c1=c.getJSONObject(TAG_LOCATION1);
// Storing each json item in variable
String LocationID = c1.getString(TAG_LOCATION_ID);
String Name = c1.getString(TAG_NAME);
String Phone = c1.getString(TAG_PHONE);
String FormattedPhone = c1.getString(TAG_FORMATTED_PHONE);
String Address = c1.getString(TAG_ADDRESS);
String CrossStreet = c1.getString(TAG_CROSS_STREET);
String Lat = c1.getString(TAG_LAT);
String Lng = c1.getString(TAG_LNG);
String Distance = c1.getString(TAG_DISTANCE);
String PostalCode = c1.getString(TAG_POSTAL_CODE);
String City = c1.getString(TAG_CITY);
String State = c1.getString(TAG_STATE);
String Country = c1.getString(TAG_COUNTRY);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_LOCATION_ID, LocationID);
map.put(TAG_NAME, Name);
map.put(TAG_PHONE, Phone);
map.put(TAG_FORMATTED_PHONE, FormattedPhone);
map.put(TAG_ADDRESS, Address);
map.put(TAG_CROSS_STREET, CrossStreet);
map.put(TAG_LAT, Lat);
map.put(TAG_LNG, Lng);
map.put(TAG_DISTANCE, Distance);
map.put(TAG_POSTAL_CODE, PostalCode);
map.put(TAG_CITY, City);
map.put(TAG_STATE, State);
map.put(TAG_COUNTRY, Country);
// adding HashList to ArrayList
locationOfList.add(map);
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
locationList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
// getting values from selected ListItem
String Name = ((TextView) view.findViewById(R.id.name)).getText().toString();
String Distance = ((TextView) view.findViewById(R.id.distance_list1)).getText().toString();
String Country = ((TextView) view.findViewById(R.id.country_list1)).getText().toString();
String City = ((TextView) view.findViewById(R.id.city_list1)).getText().toString();
String Phone = ((TextView) view.findViewById(R.id.phone_list1)).getText().toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(), LocationDetails.class);
in.putExtra(TAG_NAME, Name);
in.putExtra(TAG_DISTANCE, Distance);
in.putExtra(TAG_COUNTRY, Country);
in.putExtra(TAG_CITY, City);
in.putExtra(TAG_PHONE, Phone);
startActivity(in);
}
});
public class LocationDetails extends Activity{
// JSON node keys
private static final String TAG_NAME = "Name";
private static final String TAG_PHONE = "Phone";
private static final String TAG_ADDRESS = "Address";
private static final String TAG_DISTANCE= "Distance";
private static final String TAG_CITY = "City";
private static final String TAG_COUNTRY= "Country";
private TextView name,phone,address,distance,city,country;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.location_details);
// getting intent data
Intent in = getIntent();
// Get JSON values from previous intent
String Name = in.getStringExtra(TAG_NAME);
String Phone = in.getStringExtra(TAG_PHONE);
String Address = in.getStringExtra(TAG_ADDRESS);
String Distance = in.getStringExtra(TAG_DISTANCE);
String City = in.getStringExtra(TAG_CITY);
String Country = in.getStringExtra(TAG_COUNTRY);
// Displaying all values on the screen
name= (TextView) findViewById(R.id.TxtView_name);
phone=(TextView)findViewById(R.id.TxtView_PhoneField);
address=(TextView)findViewById(R.id.TxtView_AddressField);
distance=(TextView)findViewById(R.id.TxtView_DistanceField);
city=(TextView)findViewById(R.id.TxtView_CityField);
country=(TextView)findViewById(R.id.TxtView_CountryField);
name.setText(Name);
phone.setText(Phone);
address.setText(Address);
distance.setText(Distance);
city.setText(City);
country.setText(Country);
}
}