MapScaleView
pengrad
86
Visit GitHub RepoMaps

Map Scale View

Download Android Arsenal

Scale view for any Android Maps SDK (not only Google Maps)

Image

Contributing

I encourage you to participate in this project. Feel free to open issues with bugs or ideas, fork and send pull requests.
Check list of "help wanted" issues to start with.

Usage

dependencies {
    implementation 'com.github.pengrad:mapscaleview:1.4.2'
}

Include in layout file over map

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <fragment
        android:id="@+id/mapFragment"
        class="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

    <com.github.pengrad.mapscaleview.MapScaleView
        android:id="@+id/scaleView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="4dp"/>
</FrameLayout>

With miles or custom style

<com.github.pengrad.mapscaleview.MapScaleView
        android:id="@+id/scaleView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="4dp"
        app:scale_color="#009"
        app:scale_miles="true"
        app:scale_outline="true"
        app:scale_strokeWidth="3dp"
        app:scale_textSize="20sp"
        app:scale_expandRtl="true"/>

Update on map changed

MapScaleView scaleView = (MapScaleView) findViewById(R.id.scaleView);
CameraPosition cameraPosition = map.getCameraPosition();
// need to pass zoom and latitude
scaleView.update(cameraPosition.zoom, cameraPosition.target.latitude);

Full example with subscribing to map events and updating scale view

@Override
public void onMapReady(GoogleMap googleMap) {
    map = googleMap;
    googleMap.setOnCameraMoveListener(this);
    googleMap.setOnCameraIdleListener(this);
    googleMap.setOnCameraChangeListener(this);
}

@Override
public void onCameraMove() {
    CameraPosition cameraPosition = map.getCameraPosition();
    scaleView.update(cameraPosition.zoom, cameraPosition.target.latitude);
}

@Override
public void onCameraIdle() {
    CameraPosition cameraPosition = map.getCameraPosition();
    scaleView.update(cameraPosition.zoom, cameraPosition.target.latitude);
}

@Override
public void onCameraChange(CameraPosition cameraPosition) {
    scaleView.update(cameraPosition.zoom, cameraPosition.target.latitude);
}

Customization

mapScaleView.setColor(@ColorInt int color)
mapScaleView.setTextSize(float textSize)
mapScaleView.setStrokeWidth(float strokeWidth)

// enable/disable white outline
mapScaleView.setOutlineEnabled(boolean enabled)

mapScaleView.metersAndMiles() // default
mapScaleView.metersOnly()
mapScaleView.milesOnly()

// expand scale bar from right to left
mapScaleView.setExpandRtlEnabled(true)
Become a better Android Developer
Millions of developers are learning at MindOrks

Online Training Program

Featured Blogs

Our Team

MindOrks is Certainly one of the best online blog to stay on top of all the Android development news, coding and design patterns. Finally a blog I can count on to keep myself updated with latest and greatest things happening in Android world.

Vipul Shah
Android Developer
Microsoft

Become Pro in Android by watching videos

OUR LEARNERS WORK AT