@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_driver_edmm);
mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
locationSwitch = findViewById(R.id.workingSwitch);
locationSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isOnline) {
if (isOnline) {
startLocationUpdates();
displayLocation();
Snackbar.make(mapFragment.getView(), "You Are Online", Snackbar.LENGTH_SHORT).show();
} else {
stopLocationUpdates();
mMap.clear();
handler.removeCallbacks(drawPathRunnable);
Snackbar.make(mapFragment.getView(), "You Are OffLine", Snackbar.LENGTH_LONG).show();
}
}
});
polyLineList = new ArrayList<>();
places = (PlaceAutocompleteFragment)getFragmentManager().findFragmentById(R.id.place_autocomplete_fragment) ;
places.setOnPlaceSelectedListener(new PlaceSelectionListener() {
@Override
public void onPlaceSelected(Place place) {
if (locationSwitch.isChecked()){
destination = place.getAddress().toString();
destination = destination.replace(" ","+");
getDirection();
}else {
Toast.makeText(DriverEdm.this, "Please press the ONLINE_SWITCH", Toast.LENGTH_SHORT).show();
}
}
@Override
public void onError(Status status) {
Toast.makeText(DriverEdm.this, "error "+status.toString(), Toast.LENGTH_SHORT).show();
}
});
drivers = FirebaseDatabase.getInstance().getReference("Drivers");
geoFire = new GeoFire(drivers);
setUpLocation();
mService = Common.getGoogleAPI();
}
`
--------- beginning of crash
2019-02-13 21:35:52.118 9765-9765/E/AndroidRuntime: FATAL EXCEPTION: main Process: PID: 9765 java.lang.RuntimeException: Unable to start activity : java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.location.places.ui.PlaceAutocompleteFragment.setOnPlaceSelectedListener(com.google.android.gms.location.places.ui.PlaceSelectionListener)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2724) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:203) at android.app.ActivityThread.main(ActivityThread.java:6251) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.location.places.ui.PlaceAutocompleteFragment.setOnPlaceSelectedListener(com.google.android.gms.location.places.ui.PlaceSelectionListener)' on a null object reference at uber.DriverEdm.onCreate(DriverEdm.java:180) at android.app.Activity.performCreate(Activity.java:6673) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:203) at android.app.ActivityThread.main(ActivityThread.java:6251) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) `
<android.support.constraint.ConstraintLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
>
<fragment
android:id="@+id/place_autocomplete_fragment"
android:name="com.google.android.gms.location.places.ui.PlaceAutocomplete"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_margin="0dp"
android:layout_weight="5"
app:layout_constraintBottom_toTopOf="@+id/map"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_above="@+id/pannel"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginBottom="8dp"
android:layout_weight="5"
app:layout_constraintBottom_toTopOf="@+id/pannel"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/place_autocomplete_fragment" />
<LinearLayout
android:id="@+id/pannel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginTop="8dp"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/map">
<Switch
android:id="@+id/workingSwitch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10sp"
android:text="Working" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/settings"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_weight="1"
android:text="Find User" />
</LinearLayout>
</LinearLayout>
