I've got a question about CheckBoxPreferences. I've read through the number of related threads and tried some of them but as I am a beginner I am still struggling to find the solution for the issue I am facing up. Below code is to apply a polygon over the google-map and in general it does it:
public class ZurichGreifensee extends Activity implements OnClickListener {
String latLngUster = "lat=47.348491&lon=8.717529";
private final LatLng LOCATION_GREIFENSEE = new LatLng(47.348124, 8.681688);
private GoogleMap mMap;
Button fishActivity;
ToggleButton mapView;
Polygon Naturschutzgebiet, Seeschutzzone;
CheckBoxPreference naturschutzgebiet;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.lakes_info);
NetworkConnectivityCheck checkit = new NetworkConnectivityCheck();
Boolean conn = checkit.checkNow(this.getApplicationContext());
if(conn == true){
mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
CameraUpdate updateZurichGreifensee = CameraUpdateFactory.newLatLngZoom(LOCATION_GREIFENSEE, 13);
mMap.animateCamera(updateZurichGreifensee);
mMap.setMyLocationEnabled(true);
mapView = (ToggleButton) findViewById(R.id.tbSatNorMapView);
fishActivity = (Button) findViewById(R.id.bWhereAmI);
mapView.setOnClickListener(this);
fishActivity.setOnClickListener(this);
}else{
connectivityMessage("Kein Netzwerk");
}
SharedPreferences getGewasserRevierKarte = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
boolean naturschutzgebiet = getGewasserRevierKarte.getBoolean("naturschutzgebiet", false);{
if (naturschutzgebiet == true){
addNaturschutzgebiet();}
}
boolean seeschutzzone_1 = getGewasserRevierKarte.getBoolean("seeschutzzone_1", false);{
if (seeschutzzone_1 == true)
addSeeschutzzone();
}
}
private void connectivityMessage(String string) {
// TODO Auto-generated method stub
Context context = getApplicationContext();
Toast toast = Toast.makeText(context, "", Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.setText(string);
toast.show();
}
private void addNaturschutzgebiet() {
Naturschutzgebiet = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(47.366676,8.673754), new LatLng(47.367526,8.67236), new LatLng(47.369459,8.670965), new LatLng(47.371886,8.669538),
new LatLng(47.372525,8.669184), new LatLng(47.375453,8.661481), new LatLng(47.376819,8.657801), new LatLng(47.378032,8.652318),
new LatLng(47.375962,8.651159), new LatLng(47.378839,8.646846), new LatLng(47.378759,8.646739), new LatLng(47.375562,8.651449),
new LatLng(47.37432,8.650172), new LatLng(47.37291,8.652007), new LatLng(47.371639,8.650355), new LatLng(47.370403,8.650634),
new LatLng(47.368972,8.650859), new LatLng(47.368071,8.652973), new LatLng(47.368173,8.653337), new LatLng(47.368122,8.653788),
new LatLng(47.367904,8.654228), new LatLng(47.367947,8.654593), new LatLng(47.369829,8.653616), new LatLng(47.371057,8.653488),
new LatLng(47.372155,8.65588), new LatLng(47.372656,8.657597), new LatLng(47.373608,8.661545), new LatLng(47.37262,8.663927),
new LatLng(47.371145,8.666051), new LatLng(47.370098,8.667457), new LatLng(47.370055,8.668186), new LatLng(47.369386,8.66839),
new LatLng(47.369241,8.669044), new LatLng(47.367497,8.67074), new LatLng(47.367243,8.670557), new LatLng(47.367293,8.670836),
new LatLng(47.366792,8.671544), new LatLng(47.366836,8.671823), new LatLng(47.365935,8.672746))
.strokeWidth(2)
.strokeColor(Color.RED)
.fillColor(Color.argb(64, 255, 0, 0)));
}
private void addSeeschutzzone() {
Seeschutzzone = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(47.367947,8.654593), new LatLng(47.369829,8.653616), new LatLng(47.371057,8.653488),
new LatLng(47.372155,8.65588), new LatLng(47.372656,8.657597), new LatLng(47.373608,8.661545), new LatLng(47.37262,8.663927),
new LatLng(47.371145,8.666051), new LatLng(47.370098,8.667457), new LatLng(47.370055,8.668186), new LatLng(47.369386,8.66839), new LatLng(47.369241,8.669044),
new LatLng(47.368187,8.670085), new LatLng(47.368412,8.669001), new LatLng(47.36964,8.667097), new LatLng(47.370715,8.665166),
new LatLng(47.371442,8.663599), new LatLng(47.371413,8.661239), new LatLng(47.371006,8.658149), new LatLng(47.369989,8.656261))
.strokeWidth(2)
.strokeColor(Color.MAGENTA)
.fillColor(Color.argb(64, 170, 0, 120)));
}
@Override
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.bWhereAmI:
String locationZurichGreifensee = latLngUster.toString();
Bundle basketZurich = new Bundle();
basketZurich.putString("location", locationZurichGreifensee);
Intent t = new Intent(ZurichGreifensee.this, MainActivity.class);
t.putExtras(basketZurich);
startActivity(t);
break;
}
//Switching between normal and hybrid view
if (mapView.isChecked()) {
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
}else {
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
super.onCreateOptionsMenu(menu);
MenuInflater gewasserMenu = getMenuInflater();
gewasserMenu.inflate(R.menu.gewasserkarte, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()){
case R.id.gewasserkarte:
Intent gewasser_revier_karte = new Intent(ZurichGreifensee.this, GewasserRevierKarte.class);
startActivity(gewasser_revier_karte);
break;
}
return false;
}
}
and this is my xml:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
<CheckBoxPreference
android:key="naturschutzgebiet"
android:title="Naturschutzgebiet"
android:summaryOn="Wege nicht verlassen, Hunde an der Leine führen"
android:icon="@drawable/naturschutzgebiet"
android:defaultValue="false" />
<CheckBoxPreference
android:key="seeschutzzone_1"
android:title="Seeschutzzone"
android:summaryOn="Befahren mit Booten oder anderen Schwimmkörpern sowie Baden ganzjährig verboten"
android:icon="@drawable/seeschutzzone_1"
android:defaultValue="false" />
</PreferenceScreen>
To get one of above defined polygons displayed on the map, the appropriate check-box is to be ticked-in in the preference menu. Now, even if I do it the polygon is not visible after I close the preference menu. Instead, I have to restart ZurichGreifensee activity by closing it and starting it again. Only then the code applies the polygon over the map.
My question is, what I would need to change/add within the code above so that polygon gets displayed immediately after I tick-in the desired preference Check-Box and close/ exit the preference menu?
Many thanks in advance.
