android java - 如何在 Google 地图 api 的折线中设置可见性 false 和 true？

Question

Hello World im new programming...

i am creating a trip app...

i have an Activity with LinearLayout that contains 6 ImageButtons, and after the LinearLayout there is a FrameLayout with Google Maps; in the logical part there are 6 Polylines, all of these Polylines have.visible(false)

i would like click in 1 ImageButton and get 1 Polyline set.visible(true) and if i click again the ImageButton set that Polyline.visible(false)

thanks in advance!!!

I use this code to my Zoom Buttons but i do not know how configure them to change visibility on polylines...

public class TransBus extends AppCompatActivity implements OnMapReadyCallback {

ImageButton busBtn;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_trans_bus);

    //Hooks
    busBtn = findViewById(R.id.bus1);

     busBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) { visibilityOn(); }
    });

    SupportMapFragment supportMapFragment = SupportMapFragment.newInstance();
    getSupportFragmentManager().beginTransaction().add(R.id.container, supportMapFragment).commit();
    supportMapFragment.getMapAsync(this);

}

public void visibilityOn() {?
    
}

Answer 1

You can use the setVisibility() method of polylineOptions defined in the android sdk .

You can change the visibility by calling this code on the polyline object

 polyline.setVisibility(false)

if you want to check out other methods you can check the documentation