Я пытаюсь сделать снимок экрана с Google Maps android и передать изображение в новый вид деятельности, но постоянно получаю эту ошибку:
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.maps.GoogleMap.snapshot(com.google.android.gms.maps.GoogleMap$SnapshotReadyCallback)' on a null object reference
at com.jjoey.transportr.activities.BookRideActivity.initViews(BookRideActivity.java:480)
at com.jjoey.transportr.activities.BookRideActivity.onCreate(BookRideActivity.java:101)
at android.app.Activity.performCreate(Activity.java:5990)
Я пытался написать код в onResume and onMapReady методахактивность, но ошибка сохраняется.
Вот мой код активности:
public class BookRideActivity extends FirebaseUtils implements OnMapReadyCallback {
private static final String TAG = BookRideActivity.class.getSimpleName();
private static final int LOC_REQ_CODE = 2035;
private Toolbar toolbar;
private ImageView backIV;
private SharedPrefsHelper prefsHelper;
private SupportMapFragment mapFragment;
private GoogleMap mGmap;
private LocationRequest locationRequest;
private FusedLocationProviderClient fusedLocationProviderClient;
private LocationCallback callback;
private Location mCurrLocation;
private Marker marker;
private Bitmap locnImg;
private EditText startET, dropET, et_coupon, et_payment_options, et_rider;
private TextView estimatedPUTimeTV;
private Button bookNowBtn, cancelBtn;
private double lat = 0f, lon = 0f;
private String start = null, drop = null;
private boolean isValid = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_book_ride);
initViews();
start = getIntent().getStringExtra("start_addr");
drop = getIntent().getStringExtra("dest_addr");
if (start != null && drop != null) {
startET.setText(start);
dropET.setText(drop);
} else {
clearInputs();
}
setSupportActionBar(toolbar);
prefsHelper = new SharedPrefsHelper(this);
prefsHelper.setLoggedOut(false);
backIV.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startActivity(new Intent(BookRideActivity.this, ClientHomeActivity.class));
}
});
et_coupon.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d(TAG, "Coupon Clicked");
showCouponDialog();
}
});
checkPerms();
handlePlacesInput();
}
private void checkPerms() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
reqPerms();
} else {
startLocationListener();
}
}
private void reqPerms() {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, LOC_REQ_CODE);
}
private void startLocationListener() {
fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setSmallestDisplacement(DISPLACEMENT);
locationRequest.setFastestInterval(FASTEST_INTERVAL);
locationRequest.setInterval(UPDATE_INTERVAL);
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
builder.addLocationRequest(locationRequest);
LocationSettingsRequest settingsRequest = builder.build();
SettingsClient client = LocationServices.getSettingsClient(this);
client.checkLocationSettings(settingsRequest);
drawLocationOnMap();
}
private void drawLocationOnMap() {
callback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
super.onLocationResult(locationResult);
mCurrLocation = locationResult.getLastLocation();
if (marker != null && mCurrLocation != null) {
marker.remove();
lat = mCurrLocation.getLatitude();
lon = mCurrLocation.getLongitude();
}
MarkerOptions options = new MarkerOptions();
options.position(new LatLng(lat, lon));
options.title("You");
options.icon(BitmapDescriptorFactory.fromResource(R.drawable.user_marker));
marker = mGmap.addMarker(options);
mGmap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lon), 18.0f));
}
};
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
fusedLocationProviderClient.requestLocationUpdates(locationRequest, callback, Looper.myLooper());
//mGmap.setMyLocationEnabled(true);
} else {
reqPerms();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case LOC_REQ_CODE:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
startLocationListener();
}
break;
}
}
private void handlePlacesInput() {
startET.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startET.setText("");
try {
Intent intent =
new PlaceAutocomplete.IntentBuilder(PlaceAutocomplete.MODE_OVERLAY)
.build(BookRideActivity.this);
startActivityForResult(intent, START_PLACE_AUTOCOMPLETE_REQUEST_CODE);
} catch (GooglePlayServicesRepairableException e) {
Log.d(TAG, "Play-Services-Repairable Err:\t" + e.getMessage());
} catch (GooglePlayServicesNotAvailableException e) {
Log.d(TAG, "Play-Services-Unavailable Err:\t" + e.getMessage());
}
}
});
dropET.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
dropET.setText("");
try {
Intent intent =
new PlaceAutocomplete.IntentBuilder(PlaceAutocomplete.MODE_OVERLAY)
.build(BookRideActivity.this);
startActivityForResult(intent, DROP_PLACE_AUTOCOMPLETE_REQUEST_CODE);
} catch (GooglePlayServicesRepairableException e) {
Log.d(TAG, "Play-Services-Repairable Err:\t" + e.getMessage());
} catch (GooglePlayServicesNotAvailableException e) {
Log.d(TAG, "Play-Services-Unavailable Err:\t" + e.getMessage());
}
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case START_PLACE_AUTOCOMPLETE_REQUEST_CODE:
if (resultCode == RESULT_OK) {
Place place = PlaceAutocomplete.getPlace(this, data);
String txt = place.getAddress().toString();
startET.setText(txt);
} else if (resultCode == PlaceAutocomplete.RESULT_ERROR) {
Status status = PlaceAutocomplete.getStatus(this, data);
Log.d(TAG, status.getStatusMessage());
} else if (resultCode == RESULT_CANCELED) {
}
break;
case DROP_PLACE_AUTOCOMPLETE_REQUEST_CODE:
if (resultCode == RESULT_OK) {
Place place = PlaceAutocomplete.getPlace(this, data);
String txt = place.getAddress().toString();
dropET.setText(txt);
} else if (resultCode == PlaceAutocomplete.RESULT_ERROR) {
Status status = PlaceAutocomplete.getStatus(this, data);
Log.d(TAG, status.getStatusMessage());
} else if (resultCode == RESULT_CANCELED) {
}
break;
}
}
private boolean validate() {
String startAddr = startET.getText().toString();
String destAddr = dropET.getText().toString();
if (TextUtils.isEmpty(startAddr) && TextUtils.isEmpty(destAddr)) {
isValid = false;
} else if (!TextUtils.isEmpty(startAddr) && !TextUtils.isEmpty(destAddr)) {
isValid = true;
}
return true;
}
private void clearInputs() {
startET.setText("");
dropET.setText("");
}
private void initViews() {
toolbar = findViewById(R.id.toolbar);
backIV = findViewById(R.id.backIV);
dropET = findViewById(R.id.dropLocationET);
startET = findViewById(R.id.startLocationET);
bookNowBtn = findViewById(R.id.bookNowBtn);
cancelBtn = findViewById(R.id.cancelBtn);
GoogleMap.SnapshotReadyCallback snapshotReadyCallback = new GoogleMap.SnapshotReadyCallback() {
@Override
public void onSnapshotReady(Bitmap bitmap) {
locnImg = bitmap;
Log.d(TAG, "Snapshot Ready");
}
};
mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.mapFragment);
mapFragment.getMapAsync(this);
mGmap.snapshot(snapshotReadyCallback);
Log.d(TAG, "Snapshot Taken");
}
@Override
public void onMapReady(GoogleMap googleMap) {
mGmap = googleMap;
View mapBtn = (View) ((View) mapFragment.getView().findViewById(Integer.parseInt("1")).getParent()).findViewById(Integer.parseInt("2"));
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) mapBtn.getLayoutParams();
params.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
params.setMargins(0, 0, 30, 30);
}
}
Я пытался выполнить этот урок , но это не такв моем случае не работает. Ошибка возникает при попытке mGmap.snapshot(snapshotReadyCallback);.Я инициализировал карту в строках выше и получил местоположение, используя FusedLocationProviderClient api.
Может кто-нибудь помочь мне понять, почему она выдает эту ошибку?Спасибо