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我嘗試在我的Fragment中顯示Google Maps。問題是當我運行我的項目，我沒有看到這個地圖。附加信息是這些片段屬於尋呼機視圖。如何創建GPS工具？
這是我的代碼示例：
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
thisContext = inflater.getContext();
View view = inflater.inflate(R.layout.tab_fragment_2, container, false);
loadMap();
// initializeMap();
locationManager = (LocationManager) thisContext.getSystemService(Context.LOCATION_SERVICE);
if (ActivityCompat.checkSelfPermission(thisContext, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(thisContext, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return null;
}
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1, 1, this);
return view;
}
private void initializeMap() {
if (map == null) {
SupportMapFragment mapFrag = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);
mapFrag.getMapAsync(this);
}
}
private void loadMap() {
SupportMapFragment mSupportMapFragment;
mSupportMapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);
if (mSupportMapFragment == null) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
mSupportMapFragment = SupportMapFragment.newInstance();
fragmentTransaction.replace(R.id.map, mSupportMapFragment).commit();
}
if (mSupportMapFragment != null) {
mSupportMapFragment.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap googleMap) {
if (googleMap != null) {
googleMap.getUiSettings().setAllGesturesEnabled(true);
// -> marker_latlng // MAKE THIS WHATEVER YOU WANT
//CameraPosition cameraPosition = new CameraPosition.Builder().target(marker_latlng).zoom(15.0f).build();
// CameraUpdate cameraUpdate = CameraUpdateFactory.newCameraPosition(cameraPosition);
// googleMap.moveCamera(cameraUpdate);
}
}
});
}
}
