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216 changes: 216 additions & 0 deletions
216
...pp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,216 @@ | ||
| package com.mapbox.mapboxsdk.testapp.activity.style; | ||
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|
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| import android.graphics.Bitmap; | ||
| import android.graphics.Canvas; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.graphics.Color; | ||
| import android.graphics.PointF; | ||
| import android.os.Bundle; | ||
| import android.support.annotation.NonNull; | ||
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|
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| import android.view.Menu; | ||
| import android.view.MenuItem; | ||
| import android.view.View; | ||
| import android.widget.TextView; | ||
| import android.widget.Toast; | ||
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|
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| import com.google.gson.GsonBuilder; | ||
| import com.mapbox.mapboxsdk.geometry.LatLng; | ||
| import com.mapbox.mapboxsdk.maps.MapView; | ||
| import com.mapbox.mapboxsdk.maps.MapboxMap; | ||
| import com.mapbox.mapboxsdk.maps.OnMapReadyCallback; | ||
| import com.mapbox.mapboxsdk.style.layers.SymbolLayer; | ||
| import com.mapbox.mapboxsdk.style.sources.GeoJsonSource; | ||
| import com.mapbox.mapboxsdk.style.sources.Source; | ||
| import com.mapbox.mapboxsdk.testapp.R; | ||
| import com.mapbox.mapboxsdk.testapp.utils.ResourceUtils; | ||
| import com.mapbox.services.commons.geojson.Feature; | ||
| import com.mapbox.services.commons.geojson.FeatureCollection; | ||
| import com.mapbox.services.commons.geojson.Geometry; | ||
| import com.mapbox.services.commons.geojson.custom.GeometryDeserializer; | ||
| import com.mapbox.services.commons.geojson.custom.PositionDeserializer; | ||
| import com.mapbox.services.commons.models.Position; | ||
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| import java.io.IOException; | ||
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| import java.util.List; | ||
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| import timber.log.Timber; | ||
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| import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconAllowOverlap; | ||
| import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage; | ||
|
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| /** | ||
| * Test activity showcasing using a symbol generator that generates Bitmaps from Android SDK Views. | ||
| */ | ||
| public class SymbolGeneratorActivity extends AppCompatActivity implements OnMapReadyCallback { | ||
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| private static final String SOURCE_ID = "com.mapbox.mapboxsdk.style.layers.symbol.source.id"; | ||
| private static final String LAYER_ID = "com.mapbox.mapboxsdk.style.layers.symbol.layer.id"; | ||
| private static final String FEATURE_ID = "brk_name"; | ||
| private static final String FEATURE_VALUE = "name_sort"; | ||
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| private MapView mapView; | ||
| private MapboxMap mapboxMap; | ||
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| @Override | ||
| public void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_symbol_generator); | ||
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| mapView = (MapView) findViewById(R.id.mapView); | ||
| mapView.onCreate(savedInstanceState); | ||
| mapView.getMapAsync(this); | ||
| } | ||
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| @Override | ||
| public void onMapReady(MapboxMap map) { | ||
| mapboxMap = map; | ||
| try { | ||
| // read local geojson from raw folder | ||
| String tinyCountriesJson = ResourceUtils.readRawResource(this, R.raw.tiny_countries); | ||
|
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| // convert geojson to a model | ||
| FeatureCollection featureCollection = new GsonBuilder() | ||
| .registerTypeAdapter(Geometry.class, new GeometryDeserializer()) | ||
| .registerTypeAdapter(Position.class, new PositionDeserializer()) | ||
| .create().fromJson(tinyCountriesJson, FeatureCollection.class); | ||
|
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| // add a geojson to the map | ||
| Source source = new GeoJsonSource(SOURCE_ID, featureCollection); | ||
| mapboxMap.addSource(source); | ||
|
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| // for each feature add a symbolLayer | ||
| for (Feature feature : featureCollection.getFeatures()) { | ||
| String countryName = feature.getStringProperty(FEATURE_ID); | ||
|
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| // create View | ||
| TextView textView = new TextView(this); | ||
| textView.setBackgroundColor(getResources().getColor(R.color.blueAccent)); | ||
| textView.setPadding(10, 5, 10, 5); | ||
| textView.setTextColor(Color.WHITE); | ||
| textView.setText(countryName); | ||
|
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| // create bitmap from view | ||
| mapboxMap.addImage(countryName, SymbolGenerator.generate(textView)); | ||
| } | ||
|
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| // create layer use | ||
| mapboxMap.addLayer(new SymbolLayer(LAYER_ID, SOURCE_ID) | ||
| .withProperties( | ||
| iconImage("{" + FEATURE_ID + "}"), // { } is a token notation | ||
| iconAllowOverlap(false) | ||
| ) | ||
| ); | ||
|
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| addSymbolClickListener(); | ||
| } catch (IOException exception) { | ||
| Timber.e(exception); | ||
| } | ||
| } | ||
|
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| private void addSymbolClickListener() { | ||
| mapboxMap.setOnMapClickListener(new MapboxMap.OnMapClickListener() { | ||
| @Override | ||
| public void onMapClick(@NonNull LatLng point) { | ||
| PointF screenPoint = mapboxMap.getProjection().toScreenLocation(point); | ||
| List<Feature> features = mapboxMap.queryRenderedFeatures(screenPoint, LAYER_ID); | ||
| if (!features.isEmpty()) { | ||
| Feature feature = features.get(0); | ||
| Timber.v("Feature was clicked with data: %s", feature.toJson()); | ||
| Toast.makeText( | ||
| SymbolGeneratorActivity.this, | ||
| "hello from: " + feature.getStringProperty(FEATURE_VALUE), | ||
| Toast.LENGTH_LONG).show(); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
|
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| @Override | ||
| public boolean onCreateOptionsMenu(Menu menu) { | ||
| getMenuInflater().inflate(R.menu.menu_generator_symbol, menu); | ||
| return super.onCreateOptionsMenu(menu); | ||
| } | ||
|
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| @Override | ||
| public boolean onOptionsItemSelected(MenuItem item) { | ||
| if (item.getItemId() == R.id.menu_action_icon_overlap) { | ||
| SymbolLayer layer = mapboxMap.getLayerAs(LAYER_ID); | ||
| layer.setProperties(iconAllowOverlap(!layer.getIconAllowOverlap().getValue())); | ||
| } | ||
| return super.onOptionsItemSelected(item); | ||
| } | ||
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| @Override | ||
| protected void onStart() { | ||
| super.onStart(); | ||
| mapView.onStart(); | ||
| } | ||
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| @Override | ||
| protected void onResume() { | ||
| super.onResume(); | ||
| mapView.onResume(); | ||
| } | ||
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| @Override | ||
| protected void onPause() { | ||
| super.onPause(); | ||
| mapView.onPause(); | ||
| } | ||
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| @Override | ||
| protected void onStop() { | ||
| super.onStop(); | ||
| mapView.onStop(); | ||
| } | ||
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| @Override | ||
| public void onSaveInstanceState(Bundle outState) { | ||
| super.onSaveInstanceState(outState); | ||
| mapView.onSaveInstanceState(outState); | ||
| } | ||
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| @Override | ||
| public void onLowMemory() { | ||
| super.onLowMemory(); | ||
| mapView.onLowMemory(); | ||
| } | ||
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| @Override | ||
| public void onDestroy() { | ||
| super.onDestroy(); | ||
| mapView.onDestroy(); | ||
| } | ||
|
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| /** | ||
| * Utility class to generate Bitmaps for Symbol. | ||
| * <p> | ||
| * Bitmaps can be added to the map with {@link com.mapbox.mapboxsdk.maps.MapboxMap#addImage(String, Bitmap)} | ||
| * </p> | ||
| */ | ||
| private static class SymbolGenerator { | ||
|
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| /** | ||
| * Generate a Bitmap from an Android SDK View. | ||
| * | ||
| * @param view the View to be drawn to a Bitmap | ||
| * @return the generated bitmap | ||
| */ | ||
| public static Bitmap generate(@NonNull View view) { | ||
| int measureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); | ||
| view.measure(measureSpec, measureSpec); | ||
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| int measuredWidth = view.getMeasuredWidth(); | ||
| int measuredHeight = view.getMeasuredHeight(); | ||
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| view.layout(0, 0, measuredWidth, measuredHeight); | ||
| Bitmap bitmap = Bitmap.createBitmap(measuredWidth, measuredHeight, Bitmap.Config.ARGB_8888); | ||
| bitmap.eraseColor(Color.TRANSPARENT); | ||
| Canvas canvas = new Canvas(bitmap); | ||
| view.draw(canvas); | ||
| return bitmap; | ||
| } | ||
| } | ||
| } |
15 changes: 15 additions & 0 deletions
15
platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_symbol_generator.xml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <RelativeLayout | ||
| xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| android:orientation="vertical"> | ||
|
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| <com.mapbox.mapboxsdk.maps.MapView | ||
| android:id="@id/mapView" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| app:mapbox_styleUrl="@string/mapbox_style_outdoors"/> | ||
|
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| </RelativeLayout> |
8 changes: 8 additions & 0 deletions
8
platform/android/MapboxGLAndroidSDKTestApp/src/main/res/menu/menu_generator_symbol.xml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <menu xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto"> | ||
| <item | ||
| android:id="@+id/menu_action_icon_overlap" | ||
| android:title="@string/menuitem_change_icon_overlap" | ||
| app:showAsAction="never"/> | ||
| </menu> |
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