Android: How to Draw treibende Pfad mit Standortwechsel in neuen Google Map-Dienste

Ich verwendete Google Android-Karte, um den aktuellen Standort und einen anderen Ort zu markieren. Ich wollte auch den Weg zwischen diesen Richtungen markieren. Aber ich könnte nur eine einzige Linie zwischen diesen beiden Orten zeichnen.Android: How to Draw treibende Pfad mit Standortwechsel in neuen Google Map-Dienste

Hier sind meine Schritte,

Das ist mein Layout-Datei.

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/content_roster_clock_out_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:layout_marginBottom="5dp" 
    android:layout_marginTop="3dp" 
    app:layout_behavior="@string/appbar_scrolling_view_behavior" 
    tools:context=".RosterClockOutActivity" 
    tools:showIn="@layout/app_bar_roster_clock_out"> 

    <ScrollView 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

     <LinearLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="5dp" 
      android:layout_marginRight="5dp" 
      android:orientation="vertical"> 

      <com.google.android.gms.maps.MapView 
       android:id="@+id/roster_clock_out_map_view" 
       android:layout_width="match_parent" 
       android:layout_height="300dp" 
       android:clickable="true" 
       android:apiKey="my api key" 
       android:layout_weight="1"/> 

      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_below="@+id/roster_clock_out_map_view" 
       android:layout_marginTop="4dp" 
       android:layout_marginBottom="15dp" 
       android:alpha="0.5" 
       android:background="#765491" 
       android:orientation="vertical"> 

       <TextView 
        android:id="@+id/roster_clock_out_date_text" 
        android:layout_width="match_parent" 
        android:layout_height="40dp" 
        android:layout_gravity="center" 
        android:paddingTop="7dp" 
        android:background="#563e6b" 
        android:paddingBottom="7dp" 
        android:text="5 th MAY 2017" 
        android:textAlignment="center" 
        android:textStyle="bold" 
        android:textColor="@android:color/white" 
        android:textSize="24sp" /> 

       <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:layout_marginTop="10dp" 
        android:orientation="horizontal"> 

        <TextView 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:layout_weight="1" 
         android:text="START TIME" 
         android:textStyle="bold" 
         android:textAlignment="center" 
         android:textColor="@android:color/white" 
         android:textSize="14sp" /> 

        <TextView 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:layout_weight="1" 
         android:text="END TIME" 
         android:textStyle="bold" 
         android:textAlignment="center" 
         android:textColor="@android:color/white" 
         android:textSize="14sp" /> 

       </LinearLayout> 


       <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:orientation="horizontal"> 

        <TextView 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:id="@+id/roster_clock_out_st_time_text" 
         android:layout_weight="1" 
         android:text="08.30 AM" 
         android:textStyle="bold" 
         android:textAlignment="center" 
         android:textColor="@android:color/white" 
         android:textSize="20sp" /> 

        <TextView 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:id="@+id/roster_clock_out_ed_time_text" 
         android:layout_weight="1" 
         android:text="05.30 PM" 
         android:textStyle="bold" 
         android:textAlignment="center" 
         android:textColor="@android:color/white" 
         android:textSize="20sp" /> 

       </LinearLayout> 

       <TextView 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:id="@+id/roster_clock_out_location_text" 
        android:layout_marginRight="35dp" 
        android:layout_marginLeft="35dp" 
        android:layout_marginTop="8dp" 
        android:drawablePadding="5dp" 
        android:drawableLeft="@drawable/ic_place_small" 
        android:textAlignment="center" 
        android:maxLines="3" 
        android:lines="3" 
        android:clickable="true" 
        android:textSize="14sp" 
        android:text="Australian Strategic Partnership\n#9, School Lane, Kollpity, Colombo 3" 
        android:textColor="@android:color/white" /> 

       <LinearLayout 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:layout_marginTop="18dp" 
        android:orientation="horizontal"> 

        <LinearLayout 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:layout_marginLeft="10dp" 
         android:layout_weight="1" 
         android:orientation="vertical"> 

         <LinearLayout 
          android:layout_width="match_parent" 
          android:layout_height="wrap_content" 
          android:orientation="horizontal"> 

          <TextView 
           android:layout_width="match_parent" 
           android:layout_height="wrap_content" 
           android:layout_weight="1" 
           android:textSize="14sp" 
           android:text="CLOCK IN" 
           android:textStyle="bold" 
           android:textAlignment="center" 
           android:textColor="#f7f316"/> 

          <TextView 
           android:layout_width="match_parent" 
           android:layout_height="wrap_content" 
           android:layout_weight="1"/> 

         </LinearLayout> 

         <LinearLayout 
          android:layout_width="match_parent" 
          android:layout_height="wrap_content" 
          android:orientation="horizontal"> 

          <TextView 
           android:layout_width="match_parent" 
           android:layout_height="wrap_content" 
           android:id="@+id/roster_clock_in_sign_time_text" 
           android:layout_weight="1" 
           android:textSize="18sp" 
           android:textStyle="bold" 
           android:textColor="#f7f316" 
           android:text="08:43 PM" 
           android:textAlignment="center"/> 

          <TextView 
           android:layout_width="match_parent" 
           android:layout_height="wrap_content" 
           android:id="@+id/roster_clock_in_delayed_time_text" 
           android:layout_weight="1" 
           android:textSize="18sp" 
           android:textColor="@android:color/white" 
           android:text="04:00" 
           android:textStyle="bold" 
           android:textAlignment="center"/> 

         </LinearLayout> 

        </LinearLayout> 

        <android.support.v7.widget.AppCompatButton 
         android:id="@+id/roster_clock_out_save_btn" 
         style="@style/ButtonStyle" 
         android:layout_height="32dp" 
         android:background="#800080" 
         android:alpha="5" 
         android:layout_marginBottom="10dp" 
         android:layout_marginRight="10dp" 
         android:textSize="16sp" 
         android:textStyle="bold" 
         android:clickable="true" 
         android:layout_weight="1.5" 
         android:text="CLOCK OUT" /> 

       </LinearLayout> 

      </LinearLayout> 

     </LinearLayout> 

    </ScrollView> 

</RelativeLayout>

Und dieser Schritt ist für Google-Karte innerhalb einer Aktivität implementieren,

public class RosterActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { 

    private Context context;  
    MapView locationMap; 
    View mainView; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_roster); 

     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_roster); 
     setSupportActionBar(toolbar); 
     getSupportActionBar().setDisplayShowHomeEnabled(true); 

     mainView = this.getWindow().getDecorView().findViewById(R.id.content_roster_clock_in_layout); 
     context = this;      

     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout_roster); 
     ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
       this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); 
     drawer.setDrawerListener(toggle); 
     toggle.syncState(); 

     NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view_roster); 
     Menu menu = navigationView.getMenu(); 
     if (menu != null) { 
      for (int i = 0; i < menu.size(); i++) { 
       MenuItem menuItem = menu.getItem(i); 

      } 
     } 
     navigationView.setNavigationItemSelectedListener(this); 

     locationMap = (MapView) findViewById(R.id.roster_map_view); 
     locationMap.onCreate(savedInstanceState);   

     InternetConnectivity internetConnectivity = new InternetConnectivity(); 
     final boolean isConnectedToInternet = internetConnectivity.isConnectedToInternet(context); 

     final LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 
     final Criteria criteria = new Criteria(); 

     final Location location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, false)); 

     if (isConnectedToInternet == true) { 

      final LatLng assignedLocation = new LatLng(6.931253, 79.906292); 

      locationMap.getMapAsync(new OnMapReadyCallback() { 
       @Override 
       public void onMapReady(final GoogleMap googleMap) { 
        if (ActivityCompat.checkSelfPermission(RosterActivity.this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(RosterActivity.this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { 
         googleMap.setMyLocationEnabled(true); 
        } 
        googleMap.setMyLocationEnabled(true); 
        googleMap.getUiSettings().setAllGesturesEnabled(true); 
        googleMap.getUiSettings().setZoomControlsEnabled(true); 
        googleMap.getUiSettings().setScrollGesturesEnabled(true); 
        googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL); 
        if (location != null)     { 
         googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 13)); 

         CameraPosition cameraPosition = new CameraPosition.Builder() 
           .target(new LatLng(location.getLatitude(), location.getLongitude())) 
           .zoom(10) 
           .bearing(0) 
           .tilt(40) 
           .build(); 
         googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition)); 
        } 
        googleMap.addMarker(new MarkerOptions().position(assignedLocation).title("Your Location").draggable(true)); 

       } 
      }); 

      setData(responseBody); 
     }else{ 
      Snackbar.make(mainView, "No Internet Connection", Snackbar.LENGTH_LONG) 
        .setAction("Action", null).show(); 
     }  
    } 

    @Override 
    public boolean onNavigationItemSelected(MenuItem item) { 
     return true; 
    } 



    @Override 
    protected void onStart() { 
     super.onStart(); 
     locationMap.onStart(); 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
     locationMap.onResume(); 
    } 

    @Override 
    protected void onPause(){ 
     super.onPause(); 
     locationMap.onPause(); 
    } 

    @Override 
    protected void onStop(){ 
     super.onStop(); 
     locationMap.onStop(); 
    } 

    @Override 
    protected void onDestroy() { 
     super.onDestroy(); 
     locationMap.onDestroy(); 
    } 

    @Override 
    public void onLowMemory(){ 
     super.onLowMemory(); 
     locationMap.onLowMemory(); 
    } 

    @Override 
    public void onSaveInstanceState(Bundle outState) { 
     super.onSaveInstanceState(outState); 
     locationMap.onSaveInstanceState(outState); 
    } 

}

Wie kann ich mit meinem mapview und google map tun?

Haben Sie irgendwelche Ideen?

Quelle

2017-06-02 Barrier

Bitte setzen Sie sich Daten aus dieser api, mit diesen Parametern: Herkunft (lat, long der Quelle), Ziel (lat, long Bestimmungsort), Schlüssel (Google API-Schlüssel) http://maps.googleapis.com/maps/api/directions/json

Daten, die erhalten von oben ist api eine Liste von Orten von A bis B. Sie müssen lediglich eine Punktliste aus Daten zeichnen. Sie erhalten eine Richtungslinie von a nach b

endgültig JSONObject json = new JSONObject (result); JSONArray routeArray = json.getJSONArray ("routes"); JSON-Objekt routes = routeArray.getJSONObject (0); JSONObject overviewPolylines = Routen .getJSONObject ("overview_polyline"); Zeichenfolge encodedString = overviewPolylines.getString ("points");

JSONArray legArray =routes.getJSONArray("legs"); 
    JSONObject legs= legArray.getJSONObject(0); 
    JSONObject distance =legs.getJSONObject("distance"); 
    String dis=distance.getString("text"); 
    RouteActivity.txtDistance.setText("("+dis+")"); 

    JSONObject duration =legs.getJSONObject("duration"); 
    String dur=duration.getString("text"); 
    RouteActivity.txtTime.setText(dur); 

    List<LatLng> list = decodePoly(encodedString); 

    PolylineOptions options = new PolylineOptions().width(5).color(Color.BLUE).geodesic(true); 
    for (int z = 0; z < list.size(); z++) { 
     LatLng point = list.get(z); 
     options.add(point); 
    } 
    mGoogleMap.addPolyline(options);

private static Liste decodePoly (String codiert) {

List<LatLng> poly = new ArrayList<LatLng>(); 
int index = 0, len = encoded.length(); 
int lat = 0, lng = 0; 

while (index < len) { 
    int b, shift = 0, result = 0; 
    do { 
     b = encoded.charAt(index++) - 63; 
     result |= (b & 0x1f) << shift; 
     shift += 5; 
    } while (b >= 0x20); 
    int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1)); 
    lat += dlat; 

    shift = 0; 
    result = 0; 
    do { 
     b = encoded.charAt(index++) - 63; 
     result |= (b & 0x1f) << shift; 
     shift += 5; 
    } while (b >= 0x20); 
    int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1)); 
    lng += dlng; 

    LatLng p = new LatLng((((double) lat/1E5)), 
      (((double) lng/1E5))); 
    poly.add(p); 
} 

return poly;

}

Quelle

2017-06-02 12:05:47 GiaLe

können Sie Google verwenden direvtions in google map android api v2.

Dadurch werden Routen im JSONArray-Format zurückgegeben.

Analysieren Sie die Array und speichern in Liste

Verwenden Polylinien die Routen in Liste gespeichert anzuzeigen.

Quelle

2017-06-02 12:10:35 parbir

Android: How to Draw treibende Pfad mit Standortwechsel in neuen Google Map-Dienste

Antwort

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