我正在进行谷歌地图项目，我必须从数组列表中获取数据（标题和摘录说明）（从服务器检索）并动态显示在标题和代码段中。由于片段中的描述很长，因此不显示整个描述。以下是我的代码。
点按标记后，我可以获得标题和摘要。我需要的是，该代码片段应该显示来自服务器的冗长描述。目前发生的是，有一个标题行和一个片段行。描述显示在代码段的一半。如果我不清楚请告诉我。需要解决这个问题。
@SuppressLint("NewApi")
public class GoogleActivity extends FragmentActivity implements LocationListener {
private LocationManager locationManager;
private static final long MIN_TIME = 700;
private static final float MIN_DISTANCE = 800;
private Location mLocation;
// Google Map
private GoogleMap googleMap;
LatLng myPosition;
// All static variables
static final String URL = "http://webersspot.accountsupport.com/gmaptrial/onedb/phpsqlajax_genxml.php";
// XML node keys
static final String KEY_PID = "pro"; // parent node
static final String KEY_NAME = "Name";
static final String KEY_DESCRIPTION = "Description";
static final String KEY_LAT = "Latitude";
static final String KEY_LONG = "Longitude";
ArrayList<HashMap<String, String>> storeMapData = new ArrayList<HashMap<String, String>>();
private ShareActionProvider mShareActionProvider;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//open the map
openTheMap();
/*
// Get Location Manager and check for GPS & Network location services
LocationManager lm = (LocationManager) getSystemService(LOCATION_SERVICE);
if(!lm.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
!lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
// Build the alert dialog
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Location Services Not Active");
builder.setMessage("Please enable Location Services and GPS");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
// Show location settings when the user acknowledges the alert dialog
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
});
Dialog alertDialog = builder.create();
alertDialog.setCanceledOnTouchOutside(false);
alertDialog.show();
}
*/
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MIN_TIME, MIN_DISTANCE, this); //You can also use LocationManager.GPS_PROVIDER and LocationManager.PASSIVE_PROVIDER
new LongOperation().execute("");
new MapOperation().execute(googleMap);
}
/* open the map */
private void openTheMap() {
try {
if(googleMap == null) {
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
googleMap = mapFragment.getMap();
googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID); // Hybrid for satellite with place name
googleMap.setMyLocationEnabled(true); // enable user location button.
googleMap.setInfoWindowAdapter(null) ;
googleMap.getUiSettings().setZoomControlsEnabled(true);
googleMap.getUiSettings().setCompassEnabled(true);
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
googleMap.getUiSettings().setAllGesturesEnabled(true);
googleMap.setTrafficEnabled(true); // enable road
zoomMap();
}
} catch (NullPointerException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
/* zoom current location */
private void zoomMap() {
int zoomScale = 12;
double currentLat = mLocation.getLatitude();
double currentLon = mLocation.getLongitude();
googleMap.moveCamera(CameraUpdateFactory
.newLatLngZoom(new LatLng(currentLat, currentLon), zoomScale));
}
public List<HashMap<String, String>> prepareData(){
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
//List<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
XmlParser parser = new XmlParser();
String xml = parser.getXmlFromUrl(URL); // getting XML
Document doc = parser.getDomElement(xml); // getting DOM element
NodeList nl = doc.getElementsByTagName(KEY_PID);
// looping through all item nodes <item>
for (int i = 0; i < nl.getLength(); i++) {
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
Element e = (Element) nl.item(i);
System.out.println("OOOOOOOOOOOOOOOOOOO ::: "+e.getAttribute(KEY_NAME));
// adding each child node to HashMap key => value
map.put(KEY_NAME, e.getAttribute(KEY_NAME).toString());
map.put(KEY_DESCRIPTION ,e.getAttribute(KEY_DESCRIPTION).toString());
map.put(KEY_LAT, e.getAttribute(KEY_LAT).toString());
map.put(KEY_LONG ,e.getAttribute(KEY_LONG).toString());
// adding HashList to ArrayList
menuItems.add(map);
storeMapData = menuItems;
}
return menuItems;
}
public void onMapReady(final GoogleMap map) {
ArrayList<HashMap<String, String>> processData = storeMapData;
System.out.println( "kjkasdc "+processData);
for (int i=0; i< processData.size(); i++){
final double lat = Double.parseDouble(processData.get(i).get(KEY_LAT));
System.out.println("MAP LAT ::::::::::::::::::::::::: "+lat);
final double lon = Double.parseDouble(processData.get(i).get(KEY_LONG));
System.out.println("MAP LON ::::::::::::::::::::::::: "+lon);
final String address = processData.get(i).get(KEY_DESCRIPTION);
System.out.println("MAP ADDRESS ::::::::::::::::::::::::: "+address);
final String name = processData.get(i).get(KEY_NAME);
System.out.println("MAP ADDRESS ::::::::::::::::::::::::: "+name);
runOnUiThread(new Runnable() {
@Override
public void run() {
map.addMarker(new MarkerOptions().position(new LatLng(lat, lon)).title(name).snippet(address).icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW)));
}
});
}
}
@SuppressLint("NewApi")
@Override
public boolean onCreateOptionsMenu(Menu menu) {
/** Inflating the current activity's menu with res/menu/items.xml */
getMenuInflater().inflate(R.menu.share_menu, menu);
mShareActionProvider = (ShareActionProvider) menu.findItem(R.id.menu_item_share).getActionProvider();
/** Setting a share intent */
mShareActionProvider.setShareIntent(getDefaultShareIntent());
return super.onCreateOptionsMenu(menu);
}
/** Returns a share intent */
private Intent getDefaultShareIntent(){
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_SUBJECT,"Download");
intent.putExtra(Intent.EXTRA_TEXT,"Download Hill Top Beauty Parlour App - Maroli from Google Play Store: https://play.google.com/store/apps/details?id=beauty.parlour.maroli");
return intent;
}
private class LongOperation extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
prepareData();
return "Executed";
}
@Override
protected void onPostExecute(String result) {
System.out.println("Executed");
}
@Override
protected void onPreExecute() {
System.out.println("Execution started");
}
@Override
protected void onProgressUpdate(Void... values) {
System.out.println(" -- -- -- "+values);
}
}
private class MapOperation extends AsyncTask<GoogleMap, Void, String> {
@Override
protected String doInBackground(GoogleMap... params) {
GoogleMap map = params[0];
onMapReady(map);
return "Executed";
}
@Override
protected void onPostExecute(String result) {
System.out.println(result);
}
@Override
protected void onPreExecute() {
System.out.println("Execution started");
}
@Override
protected void onProgressUpdate(Void... values) {
System.out.println(" -- -- -- "+values);
}
}
class MyInfoWindowAdapter implements InfoWindowAdapter{
private final View myContentsView;
MyInfoWindowAdapter(){
myContentsView = getLayoutInflater().inflate(R.layout.custom_info_contents, null);
}
@Override
public View getInfoContents(Marker marker) {
TextView tvTitle = ((TextView)myContentsView.findViewById(R.id.title));
tvTitle.setText(marker.getTitle());
TextView tvaddress = ((TextView)myContentsView.findViewById(R.id.snippet));
tvaddress.setText(marker.getTitle());
return myContentsView;
}
@Override
public View getInfoWindow(Marker marker) {
// TODO Auto-generated method stub
return null;
}
}
@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 10);
googleMap.animateCamera(cameraUpdate);
locationManager.removeUpdates(this);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
}
目前，当我点按标记时，我可以获得标题和摘要。我需要的是，该代码片段应该显示来自服务器的冗长描述。目前发生的是，有一个标题行和一个片段行。描述显示在代码段的一半。如果我不清楚请告诉我。需要解决这个问题。
答案 0 :(得分：0)
您需要检查自定义信息窗口的布局，并确保描述的Textview接受超过1行。在布局或代码中设置lines或maxLines属性将帮助您实现此目的。还要确保正确设置了layout_height和layout_width。
你可以参考这个问题 - ＆gt; Custom info window for google maps android作为如何创建自定义信息窗口的指南