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package com.mapbox.mapboxsdk.maps;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.mapbox.mapboxsdk.utils.MapFragmentUtils;
import java.util.ArrayList;
import java.util.List;
/**
* Support Fragment wrapper around a map view.
* <p>
* A Map component in an app. This fragment is the simplest way to place a map in an application.
* It's a wrapper around a view of a map to automatically handle the necessary life cycle needs.
* Being a fragment, this component can be added to an activity's layout or can dynamically be added
* using a FragmentManager.
* </p>
* <p>
* To get a reference to the MapView, use {@link #getMapAsync(OnMapReadyCallback)}}
* </p>
*
* @see #getMapAsync(OnMapReadyCallback)
*/
public class SupportMapFragment extends Fragment implements OnMapReadyCallback {
private final List<OnMapReadyCallback> mapReadyCallbackList = new ArrayList<>();
private MapFragment.OnMapViewReadyCallback mapViewReadyCallback;
private MapboxMap mapboxMap;
private MapView map;
/**
* Creates a default MapFragment instance
*
* @return MapFragment created
*/
public static SupportMapFragment newInstance() {
return new SupportMapFragment();
}
/**
* Creates a MapFragment instance
*
* @param mapboxMapOptions The configuration options to be used.
* @return MapFragment created.
*/
public static SupportMapFragment newInstance(@Nullable MapboxMapOptions mapboxMapOptions) {
SupportMapFragment mapFragment = new SupportMapFragment();
mapFragment.setArguments(MapFragmentUtils.createFragmentArgs(mapboxMapOptions));
return mapFragment;
}
/**
* Called when the context attaches to this fragment.
*
* @param context the context attaching
*/
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof MapFragment.OnMapViewReadyCallback) {
mapViewReadyCallback = (MapFragment.OnMapViewReadyCallback) context;
}
}
/**
* Called when this fragment is inflated, parses XML tag attributes.
*
* @param context The context inflating this fragment.
* @param attrs The XML tag attributes.
* @param savedInstanceState The saved instance state for the map fragment.
*/
@Override
public void onInflate(Context context, AttributeSet attrs, Bundle savedInstanceState) {
super.onInflate(context, attrs, savedInstanceState);
setArguments(MapFragmentUtils.createFragmentArgs(MapboxMapOptions.createFromAttributes(context, attrs)));
}
/**
* Creates the fragment view hierarchy.
*
* @param inflater Inflater used to inflate content.
* @param container The parent layout for the map fragment.
* @param savedInstanceState The saved instance state for the map fragment.
* @return The view created
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
Context context = inflater.getContext();
map = new MapView(context, MapFragmentUtils.resolveArgs(context, getArguments()));
return map;
}
/**
* Called when the fragment view hierarchy is created.
*
* @param view The content view of the fragment
* @param savedInstanceState THe saved instance state of the framgnt
*/
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
map.onCreate(savedInstanceState);
map.getMapAsync(this);
// notify listeners about MapView creation
if (mapViewReadyCallback != null) {
mapViewReadyCallback.onMapViewReady(map);
}
}
@Override
public void onMapReady(MapboxMap mapboxMap) {
this.mapboxMap = mapboxMap;
for (OnMapReadyCallback onMapReadyCallback : mapReadyCallbackList) {
onMapReadyCallback.onMapReady(mapboxMap);
}
}
/**
* Called when the fragment is visible for the users.
*/
@Override
public void onStart() {
super.onStart();
map.onStart();
}
/**
* Called when the fragment is ready to be interacted with.
*/
@Override
public void onResume() {
super.onResume();
map.onResume();
}
/**
* Called when the fragment is pausing.
*/
@Override
public void onPause() {
super.onPause();
map.onPause();
}
/**
* Called when the fragment state needs to be saved.
*
* @param outState The saved state
*/
@Override
public void onSaveInstanceState(@NonNull Bundle outState) {
super.onSaveInstanceState(outState);
map.onSaveInstanceState(outState);
}
/**
* Called when the fragment is no longer visible for the user.
*/
@Override
public void onStop() {
super.onStop();
map.onStop();
}
/**
* Called when the fragment receives onLowMemory call from the hosting Activity.
*/
@Override
public void onLowMemory() {
super.onLowMemory();
map.onLowMemory();
}
/**
* Called when the fragment is view hiearchy is being destroyed.
*/
@Override
public void onDestroyView() {
super.onDestroyView();
map.onDestroy();
mapReadyCallbackList.clear();
}
/**
* Sets a callback object which will be triggered when the MapboxMap instance is ready to be used.
*
* @param onMapReadyCallback The callback to be invoked.
*/
public void getMapAsync(@NonNull final OnMapReadyCallback onMapReadyCallback) {
if (mapboxMap == null) {
mapReadyCallbackList.add(onMapReadyCallback);
} else {
onMapReadyCallback.onMapReady(mapboxMap);
}
}
}
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