diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java')
| -rw-r--r-- | platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java | 151 |
1 files changed, 102 insertions, 49 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java index ca4176be6e..f32aa5faf8 100644 --- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java +++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/SymbolGeneratorActivity.java @@ -20,15 +20,15 @@ import com.mapbox.geojson.FeatureCollection; import com.mapbox.mapboxsdk.maps.MapView; import com.mapbox.mapboxsdk.maps.MapboxMap; import com.mapbox.mapboxsdk.maps.OnMapReadyCallback; -import com.mapbox.mapboxsdk.style.layers.Filter; +import com.mapbox.mapboxsdk.style.expressions.Expression; 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 java.io.IOException; +import java.lang.ref.WeakReference; import java.util.HashMap; import java.util.List; @@ -37,11 +37,19 @@ import timber.log.Timber; import static com.mapbox.mapboxsdk.style.expressions.Expression.concat; import static com.mapbox.mapboxsdk.style.expressions.Expression.division; import static com.mapbox.mapboxsdk.style.expressions.Expression.downcase; +import static com.mapbox.mapboxsdk.style.expressions.Expression.eq; import static com.mapbox.mapboxsdk.style.expressions.Expression.get; import static com.mapbox.mapboxsdk.style.expressions.Expression.literal; +import static com.mapbox.mapboxsdk.style.expressions.Expression.match; +import static com.mapbox.mapboxsdk.style.expressions.Expression.number; import static com.mapbox.mapboxsdk.style.expressions.Expression.pi; import static com.mapbox.mapboxsdk.style.expressions.Expression.product; +import static com.mapbox.mapboxsdk.style.expressions.Expression.rgba; +import static com.mapbox.mapboxsdk.style.expressions.Expression.step; +import static com.mapbox.mapboxsdk.style.expressions.Expression.stop; +import static com.mapbox.mapboxsdk.style.expressions.Expression.string; import static com.mapbox.mapboxsdk.style.expressions.Expression.upcase; +import static com.mapbox.mapboxsdk.style.expressions.Expression.zoom; import static com.mapbox.mapboxsdk.style.layers.Property.ICON_ANCHOR_BOTTOM; import static com.mapbox.mapboxsdk.style.layers.Property.TEXT_ANCHOR_TOP; import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconAllowOverlap; @@ -50,6 +58,7 @@ import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage; import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconOffset; import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconSize; import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textAnchor; +import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textColor; import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textField; import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textSize; @@ -115,8 +124,8 @@ public class SymbolGeneratorActivity extends AppCompatActivity implements OnMapR return true; } else if (item.getItemId() == R.id.menu_action_filter) { SymbolLayer layer = mapboxMap.getLayerAs(LAYER_ID); - layer.setFilter(Filter.eq(FEATURE_RANK, 1)); - //layer.setFilter(eq(get(FEATURE_RANK), 1)); + layer.setFilter(eq(get(FEATURE_RANK), literal(1))); + Timber.e("Filter that was set: %s", layer.getFilter()); return true; } return super.onOptionsItemSelected(item); @@ -196,27 +205,32 @@ public class SymbolGeneratorActivity extends AppCompatActivity implements OnMapR private static class LoadDataTask extends AsyncTask<Void, Void, FeatureCollection> { - private SymbolGeneratorActivity activity; + private WeakReference<SymbolGeneratorActivity> activity; LoadDataTask(SymbolGeneratorActivity activity) { - this.activity = activity; + this.activity = new WeakReference<>(activity); } @Override protected FeatureCollection doInBackground(Void... params) { - try { - // read local geojson from raw folder - String tinyCountriesJson = ResourceUtils.readRawResource(activity, R.raw.tiny_countries); - return FeatureCollection.fromJson(tinyCountriesJson); - - } catch (IOException exception) { - return null; + Context context = activity.get(); + if (context != null) { + try { + // read local geojson from raw folder + String tinyCountriesJson = ResourceUtils.readRawResource(context, R.raw.tiny_countries); + return FeatureCollection.fromJson(tinyCountriesJson); + + } catch (IOException exception) { + Timber.e(exception); + } } + return null; } @Override protected void onPostExecute(FeatureCollection featureCollection) { super.onPostExecute(featureCollection); + SymbolGeneratorActivity activity = this.activity.get(); if (featureCollection == null || activity == null) { return; } @@ -226,37 +240,74 @@ public class SymbolGeneratorActivity extends AppCompatActivity implements OnMapR } public void onDataLoaded(@NonNull FeatureCollection featureCollection) { - // add a geojson to the map - Source source = new GeoJsonSource(SOURCE_ID, featureCollection); - mapboxMap.addSource(source); + // create expressions + Expression iconImageExpression = string(get(literal(FEATURE_ID))); + Expression iconSizeExpression = division(number(get(literal(FEATURE_RANK))), literal(2.0f)); + Expression textSizeExpression = product(get(literal(FEATURE_RANK)), pi()); + Expression textFieldExpression = concat(upcase(literal("a ")), upcase(string(get(literal(FEATURE_TYPE)))), + downcase(literal(" IN ")), string(get(literal(FEATURE_REGION))) + ); + Expression textColorExpression = match(get(literal(FEATURE_RANK)), + literal(1), rgba(255, 0, 0, 1.0f), + literal(2), rgba(0, 0, 255.0f, 1.0f), + rgba(0.0f, 255.0f, 0.0f, 1.0f) + ); - // create layer use - mapboxMap.addLayer(new SymbolLayer(LAYER_ID, SOURCE_ID) - .withProperties( + rgba( + division(literal(255), get(FEATURE_RANK)), + literal(0.0f), + literal(0.0f), + literal(1.0f) + ); + // create symbol layer + SymbolLayer symbolLayer = new SymbolLayer(LAYER_ID, SOURCE_ID) + .withProperties( // icon configuration - iconImage(get(literal(FEATURE_ID))), + iconImage(iconImageExpression), iconAllowOverlap(false), - iconSize( - division(get(literal(FEATURE_RANK)), literal(2)) - ), + iconSize(iconSizeExpression), iconAnchor(ICON_ANCHOR_BOTTOM), - iconOffset(new Float[] {0.0f, -5.0f}), + iconOffset(step(zoom(), literal(new float[] {0f, 0f}), + stop(1, new Float[] {0f, 0f}), + stop(10, new Float[] {0f, -35f}) + )), // text field configuration - textField( - concat( - upcase(literal("a ")), - get(literal(FEATURE_TYPE)), - downcase(literal(" IN ")), - get(literal(FEATURE_REGION)) - ) - ), - textSize( - product(get(literal(FEATURE_RANK)), pi()) - ), - textAnchor(TEXT_ANCHOR_TOP) - ) + textField(textFieldExpression), + textSize(textSizeExpression), + textAnchor(TEXT_ANCHOR_TOP), + textColor(textColorExpression) + ); + + // add a geojson source to the map + Source source = new GeoJsonSource(SOURCE_ID, featureCollection); + mapboxMap.addSource(source); + + // add symbol layer + mapboxMap.addLayer(symbolLayer); + + // get expressions + Expression iconImageExpressionResult = symbolLayer.getIconImage().getExpression(); + Expression iconSizeExpressionResult = symbolLayer.getIconSize().getExpression(); + Expression textSizeExpressionResult = symbolLayer.getTextSize().getExpression(); + Expression textFieldExpressionResult = symbolLayer.getTextField().getExpression(); + Expression textColorExpressionResult = symbolLayer.getTextColor().getExpression(); + + // log expressions + Timber.e(iconImageExpressionResult.toString()); + Timber.e(iconSizeExpressionResult.toString()); + Timber.e(textSizeExpressionResult.toString()); + Timber.e(textFieldExpressionResult.toString()); + Timber.e(textColorExpressionResult.toString()); + + // reset expressions + symbolLayer.setProperties( + iconImage(iconImageExpressionResult), + iconSize(iconSizeExpressionResult), + textSize(textSizeExpressionResult), + textField(textFieldExpressionResult), + textColor(textColorExpressionResult) ); new GenerateSymbolTask(mapboxMap, this).execute(featureCollection); @@ -265,27 +316,29 @@ public class SymbolGeneratorActivity extends AppCompatActivity implements OnMapR private static class GenerateSymbolTask extends AsyncTask<FeatureCollection, Void, HashMap<String, Bitmap>> { private MapboxMap mapboxMap; - private Context context; + private WeakReference<Context> context; GenerateSymbolTask(MapboxMap mapboxMap, Context context) { this.mapboxMap = mapboxMap; - this.context = context; + this.context = new WeakReference<>(context); } @SuppressWarnings("WrongThread") @Override protected HashMap<String, Bitmap> doInBackground(FeatureCollection... params) { - FeatureCollection featureCollection = params[0]; - HashMap<String, Bitmap> imagesMap = new HashMap<>(); - for (Feature feature : featureCollection.features()) { - String countryName = feature.getStringProperty(FEATURE_ID); - TextView textView = new TextView(context); - textView.setBackgroundColor(context.getResources().getColor(R.color.blueAccent)); - textView.setPadding(10, 5, 10, 5); - textView.setTextColor(Color.WHITE); - textView.setText(countryName); - imagesMap.put(countryName, SymbolGenerator.generate(textView)); + Context context = this.context.get(); + List<Feature> features = params[0].features(); + if (context != null && features != null) { + for (Feature feature : features) { + String countryName = feature.getStringProperty(FEATURE_ID); + TextView textView = new TextView(context); + textView.setBackgroundColor(context.getResources().getColor(R.color.blueAccent)); + textView.setPadding(10, 5, 10, 5); + textView.setTextColor(Color.WHITE); + textView.setText(countryName); + imagesMap.put(countryName, SymbolGenerator.generate(textView)); + } } return imagesMap; } |