Google maps Button “MyLocation”

Question

I decided to implement the "Location" button with all the states, like on Google maps.

More details:

Inactive - When the user scamps on the map.

Active - When the user has determined his location on the map, and the camera follows its movement.

Now to the code:

<android.support.design.widget.FloatingActionButton android:layout_margin="16dp" android:layout_width="wrap_content" android:layout_height="wrap_content" app:elevation="1dp" android:src="@drawable/ic_my_location_black_24dp" android:tint="@android:color/background_dark" //серый цвет т.е. неактивная изначально app:backgroundTint="@android:color/white" android:layout_gravity="bottom|end"/>

Location Button:

 FAB.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { cameraFromPosition(); followUser = true; FAB.setColorFilter(ContextCompat.getColor(getApplicationContext(),R.color.primary)); // синий цвет т.е. активная } });

Location tracking:

 @Override public void onLocationChanged(Location location) { if (followUser) { // начинаем слежку т.к. нажата кнопка "определения местоположения" и цвет ей синий cameraFromPosition(); } }

What is the best way to implement the " Catch " method , when the user again began to run hither and so on the map, and thereby make the button inactive, ie gray?

If I am not mistaken, then you can catch a scrolling card event, in the callback of which a boolean value comes in, indicating whether the user initiated the movement.
This word served as a starting point for the open spaces of Google :)

iFr0z iFr0z 4.384 one eleven 36 · Accepted Answer · 2016-11-08T12:59:07

I still dug up the official series of new methods from Google [ Doc ], which catch the scroll on the map and not only.

PS all inclusive.

To solve my problem, only the following was enough:

implements GoogleMap.OnCameraMoveStartedListener .
In the method public void onMapReady(GoogleMap googleMap) add map.setOnCameraMoveStartedListener(this); .

And the last:

 @Override public void onCameraMoveStarted(int reason) { if (reason == GoogleMap.OnCameraMoveStartedListener.REASON_GESTURE) { followUser = false; FAB.setColorFilter(ContextCompat.getColor(getApplicationContext(),R.color.grey)); } }

PS Ready Callback from Google as a gift.

I am trying to implement something like this, but in your example it is a bit unsuccessful due to my inexperience, and I don’t want to duplicate the question, I hope you will.
I added all your changes in general, but the cameraFromPosition, followUser is highlighted in red, could you complement your code + gray / primary conversion is not very clear, you just wrote a color value there, did I understand that correctly?
and perhaps the last one, we add the location button ourselves, or you can use map.getUiSettings (). setMyLocationButtonEnabled (true);
@Morozov cameraFromPosition is my method, add boolean followUser before onCreate ().

Google maps Button “MyLocation”

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