رویدادهای کلیک را مدیریت کنید
با مجموعهها، منظم بمانید
ذخیره و طبقهبندی محتوا براساس اولویتهای شما.
پلتفرم را انتخاب کنید: Android iOS JavaScript میتوانید کاری کنید که یک لایه ویژگی به رویدادهای click
کاربر پاسخ دهد تا شناسه مکان و نوع ویژگی مرزی که روی آن کلیک شده است را دریافت کند. نقشه مثال زیر مرزهای لایه Country را نشان میدهد و کنترلکننده رویداد را نشان میدهد که چند ضلعی کلیکشده مرتبط با کشور انتخابشده را استایل میدهد.
یک کنترل کننده رویداد کلیک بنویسید
هنگامی که یک رویداد کلیک روی یک لایه ویژگی رخ می دهد، Maps SDK برای Android یک شی FeatureClickEvent
را به کنترل کننده رویداد ارسال می کند. از FeatureClickEvent
برای دریافت مختصات طول و عرض جغرافیایی کلیک و لیستی از ویژگی های تحت تأثیر کلیک استفاده کنید.
رویدادهای لایه ویژگی را مدیریت کنید
مراحل زیر را برای مدیریت رویدادها در یک لایه ویژگی انجام دهید. در این مثال، شما یک کنترل کننده رویداد کلیک برای لایه ویژگی Country تعریف می کنید تا یک پر قرمز روی چند ضلعی که کشور انتخاب شده را نشان می دهد اعمال شود.
هنگامی که FeatureLayer.setFeatureStyle()
را فرا می خوانید، تابع style factory استایل را روی تمام ویژگی های لایه ویژگی تنظیم می کند. برای بهروزرسانی سبک یک ویژگی در کنترلکننده رویداد، باید FeatureLayer.setFeatureStyle()
را فراخوانی کنید تا سبک بهروز شده را روی همه ویژگیها تنظیم کنید.
اگر قبلاً این کار را انجام نداده اید، برای ایجاد شناسه نقشه و سبک نقشه جدید، مراحل را در Get Started دنبال کنید. حتماً لایه ویژگی Country را فعال کنید.
مطمئن شوید که کلاس شما FeatureLayer.OnFeatureClickListener
را پیاده سازی می کند.
با فراخوانی FeatureLayer.addOnFeatureClickListener()
یک کنترل کننده رویداد برای رویدادهای کلیک ویژگی ثبت کنید.
جاوا
private FeatureLayer countryLayer;
@Override
public void onMapReady(GoogleMap map) {
// Get the COUNTRY feature layer.
countryLayer = map.getFeatureLayer(new FeatureLayerOptions.Builder()
.featureType(FeatureType.COUNTRY)
.build());
// Register the click event handler for the Country layer.
countryLayer.addOnFeatureClickListener(this);
// Apply default style to all countries on load to enable clicking.
styleCountryLayer();
}
// Set default fill and border for all countries to ensure that they respond
// to click events.
private void styleCountryLayer() {
FeatureLayer.StyleFactory styleFactory = (Feature feature) -> {
return new FeatureStyle.Builder()
// Set the fill color for the country as white with a 10% opacity.
.fillColor(Color.argb(0.1, 0, 0, 0))
// Set border color to solid black.
.strokeColor(Color.BLACK)
.build();
};
// Apply the style factory function to the country feature layer.
countryLayer.setFeatureStyle(styleFactory);
}
کاتلین
private var countryLayer: FeatureLayer? = null
override fun onMapReady(googleMap: GoogleMap) {
// Get the COUNTRY feature layer.
countryLayer = googleMap.getFeatureLayer(FeatureLayerOptions.Builder()
.featureType(FeatureType.COUNTRY)
.build())
// Register the click event handler for the Country layer.
countryLayer?.addOnFeatureClickListener(this)
// Apply default style to all countries on load to enable clicking.
styleCountryLayer()
}
// Set default fill and border for all countries to ensure that they respond
// to click events.
private fun styleCountryLayer() {
val styleFactory = FeatureLayer.StyleFactory { feature: Feature ->
return@StyleFactory FeatureStyle.Builder()
// Set the fill color for the country as white with a 10% opacity.
.fillColor(Color.argb(0.1f, 0f, 0f, 0f))
// Set border color to solid black.
.strokeColor(Color.BLACK)
.build()
}
// Apply the style factory function to the country feature layer.
countryLayer?.setFeatureStyle(styleFactory)
}
یک رنگ پر رنگ قرمز را به کشور انتخاب شده اعمال کنید. فقط ویژگی های قابل مشاهده قابل کلیک هستند.
جاوا
@Override
// Define the click event handler.
public void onFeatureClick(FeatureClickEvent event) {
// Get the list of features affected by the click using
// getPlaceIds() defined below.
List<String> selectedPlaceIds = getPlaceIds(event.getFeatures());
if (!selectedPlaceIds.isEmpty()) {
FeatureLayer.StyleFactory styleFactory = (Feature feature) -> {
// Use PlaceFeature to get the placeID of the country.
if (feature instanceof PlaceFeature) {
if (selectedPlaceIds.contains(((PlaceFeature) feature).getPlaceId())) {
return new FeatureStyle.Builder()
// Set the fill color to red.
.fillColor(Color.RED)
.build();
}
}
return null;
};
// Apply the style factory function to the feature layer.
countryLayer.setFeatureStyle(styleFactory);
}
}
// Get a List of place IDs from the FeatureClickEvent object.
private List<String> getPlaceIds(List<Feature> features) {
List<String> placeIds = new ArrayList<>();
for (Feature feature : features) {
if (feature instanceof PlaceFeature) {
placeIds.add(((PlaceFeature) feature).getPlaceId());
}
}
return placeIds;
}
کاتلین
// Define the click event handler.
override fun onFeatureClick(event: FeatureClickEvent) {
// Get the list of features affected by the click using
// getPlaceIds() defined below.
val selectedPlaceIds = getPlaceIds(event.getFeatures())
if (!selectedPlaceIds.isEmpty()) {
val styleFactory = FeatureLayer.StyleFactory { feature: Feature ->
// Use PlaceFeature to get the placeID of the country.
if (feature is PlaceFeature) {
if (selectedPlaceIds.contains((feature as PlaceFeature).getPlaceId())) {
return@StyleFactory FeatureStyle.Builder()
// Set the fill color to red.
.fillColor(Color.RED)
.build()
}
}
return@StyleFactory null
}
// Apply the style factory function to the feature layer.
countryLayer?.setFeatureStyle(styleFactory)
}
}
// Get a List of place IDs from the FeatureClickEvent object.
private fun getPlaceIds(features: List<Feature>): List<String> {
val placeIds: MutableList<String> = ArrayList()
for (feature in features) {
if (feature is PlaceFeature) {
placeIds.add((feature as PlaceFeature).getPlaceId())
}
}
return placeIds
}
جز در مواردی که غیر از این ذکر شده باشد،محتوای این صفحه تحت مجوز Creative Commons Attribution 4.0 License است. نمونه کدها نیز دارای مجوز Apache 2.0 License است. برای اطلاع از جزئیات، به خطمشیهای سایت Google Developers مراجعه کنید. جاوا علامت تجاری ثبتشده Oracle و/یا شرکتهای وابسته به آن است.
تاریخ آخرین بهروزرسانی 2025-08-29 بهوقت ساعت هماهنگ جهانی.
[null,null,["تاریخ آخرین بهروزرسانی 2025-08-29 بهوقت ساعت هماهنگ جهانی."],[[["\u003cp\u003eLearn how to make a feature layer respond to user click events, retrieving place ID and feature type.\u003c/p\u003e\n"],["\u003cp\u003eThis guide provides steps and code examples to create a click event handler for styling clicked boundaries.\u003c/p\u003e\n"],["\u003cp\u003eSee how to register an event handler for feature click events and apply custom styles to selected features.\u003c/p\u003e\n"],["\u003cp\u003eCode samples demonstrate retrieving the latitude/longitude of a click and a list of affected features.\u003c/p\u003e\n"],["\u003cp\u003eUnderstand how to implement a feature click event listener and style a clicked polygon with a red fill.\u003c/p\u003e\n"]]],[],null,["# Handle click events\n\nSelect platform: [Android](/maps/documentation/android-sdk/dds-boundaries/handle-events \"View this page for the Android platform docs.\") [iOS](/maps/documentation/ios-sdk/dds-boundaries/handle-events \"View this page for the iOS platform docs.\") [JavaScript](/maps/documentation/javascript/dds-boundaries/handle-events \"View this page for the JavaScript platform docs.\")\n\n\u003cbr /\u003e\n\nYou can make a feature layer respond to user `click` events to get the place\nID and feature type for the boundary that was clicked. The\nfollowing example map shows the boundaries for the Country layer, and\nshows an event handler that styles the clicked polygon associated with the\nselected country.\n\nWrite a click event handler\n---------------------------\n\nWhen a click event occurs on a feature layer, the Maps SDK for Android passes a\n[`FeatureClickEvent`](/android/reference/com/google/android/gms/maps/model/FeatureClickEvent)\nobject to the event handler. Use the `FeatureClickEvent` to get the latitude\nand longitude coordinates of the click and a list of features affected by the\nclick.\n\nHandle feature layer events\n---------------------------\n\nTake the following steps to handle events on a feature layer. In this example,\nyou define a click event handler for the Country feature layer to apply a red\nfill to the polygon representing the selected country.\n\nWhen you call\n[`FeatureLayer.setFeatureStyle()`](/android/reference/com/google/android/gms/maps/model/FeatureLayer#setFeatureStyle(com.google.android.gms.maps.model.FeatureLayer.StyleFactory)),\nthe style factory function sets the style on all features in the\nfeature layer. To update the style of a feature in the event handler, you must\ncall `FeatureLayer.setFeatureStyle()` to set the updated style on all\nfeatures.\n\n1. If you haven't already done so, follow the steps in\n [Get Started](/maps/documentation/android/dds-boundaries/start)\n to create a new map ID and map style. Be sure to enable the **Country**\n feature layer.\n\n2. Make sure your class implements\n [`FeatureLayer.OnFeatureClickListener`](/android/reference/com/google/android/gms/maps/model/FeatureLayer.OnFeatureClickListener).\n\n3. Register an event handler for feature click events by calling\n [`FeatureLayer.addOnFeatureClickListener()`](/android/reference/com/google/android/gms/maps/model/FeatureLayer#addOnFeatureClickListener(com.google.android.gms.maps.model.FeatureLayer.OnFeatureClickListener)).\n\n ### Java\n\n\n ```java\n private FeatureLayer countryLayer;\n\n @Override\n public void onMapReady(GoogleMap map) {\n\n // Get the COUNTRY feature layer.\n countryLayer = map.getFeatureLayer(new FeatureLayerOptions.Builder()\n .featureType(FeatureType.COUNTRY)\n .build());\n\n // Register the click event handler for the Country layer.\n countryLayer.addOnFeatureClickListener(this);\n\n // Apply default style to all countries on load to enable clicking.\n styleCountryLayer();\n }\n\n // Set default fill and border for all countries to ensure that they respond\n // to click events.\n private void styleCountryLayer() {\n FeatureLayer.StyleFactory styleFactory = (Feature feature) -\u003e {\n return new FeatureStyle.Builder()\n // Set the fill color for the country as white with a 10% opacity.\n .fillColor(Color.argb(0.1, 0, 0, 0))\n // Set border color to solid black.\n .strokeColor(Color.BLACK)\n .build();\n };\n\n // Apply the style factory function to the country feature layer.\n countryLayer.setFeatureStyle(styleFactory);\n }\n ```\n\n \u003cbr /\u003e\n\n ### Kotlin\n\n\n ```java\n private var countryLayer: FeatureLayer? = null\n\n override fun onMapReady(googleMap: GoogleMap) {\n // Get the COUNTRY feature layer.\n countryLayer = googleMap.getFeatureLayer(FeatureLayerOptions.Builder()\n .featureType(FeatureType.COUNTRY)\n .build())\n\n // Register the click event handler for the Country layer.\n countryLayer?.addOnFeatureClickListener(this)\n\n // Apply default style to all countries on load to enable clicking.\n styleCountryLayer()\n }\n\n // Set default fill and border for all countries to ensure that they respond\n // to click events.\n private fun styleCountryLayer() {\n val styleFactory = FeatureLayer.StyleFactory { feature: Feature -\u003e\n return@StyleFactory FeatureStyle.Builder()\n // Set the fill color for the country as white with a 10% opacity.\n .fillColor(Color.argb(0.1f, 0f, 0f, 0f))\n // Set border color to solid black.\n .strokeColor(Color.BLACK)\n .build()\n }\n\n // Apply the style factory function to the country feature layer.\n countryLayer?.setFeatureStyle(styleFactory)\n }\n ```\n\n \u003cbr /\u003e\n\n4. Apply a fill color of red to the selected country. Only visible features are\n clickable.\n\n ### Java\n\n\n ```java\n @Override\n // Define the click event handler.\n public void onFeatureClick(FeatureClickEvent event) {\n\n // Get the list of features affected by the click using\n // getPlaceIds() defined below.\n List\u003cString\u003e selectedPlaceIds = getPlaceIds(event.getFeatures());\n\n if (!selectedPlaceIds.isEmpty()) {\n FeatureLayer.StyleFactory styleFactory = (Feature feature) -\u003e {\n // Use PlaceFeature to get the placeID of the country.\n if (feature instanceof PlaceFeature) {\n if (selectedPlaceIds.contains(((PlaceFeature) feature).getPlaceId())) {\n return new FeatureStyle.Builder()\n // Set the fill color to red.\n .fillColor(Color.RED)\n .build();\n }\n }\n return null;\n };\n\n // Apply the style factory function to the feature layer.\n countryLayer.setFeatureStyle(styleFactory);\n }\n }\n\n // Get a List of place IDs from the FeatureClickEvent object.\n private List\u003cString\u003e getPlaceIds(List\u003cFeature\u003e features) {\n List\u003cString\u003e placeIds = new ArrayList\u003c\u003e();\n for (Feature feature : features) {\n if (feature instanceof PlaceFeature) {\n placeIds.add(((PlaceFeature) feature).getPlaceId());\n }\n }\n return placeIds;\n }\n ```\n\n \u003cbr /\u003e\n\n ### Kotlin\n\n\n ```java\n // Define the click event handler.\n override fun onFeatureClick(event: FeatureClickEvent) {\n\n // Get the list of features affected by the click using\n // getPlaceIds() defined below.\n val selectedPlaceIds = getPlaceIds(event.getFeatures())\n if (!selectedPlaceIds.isEmpty()) {\n val styleFactory = FeatureLayer.StyleFactory { feature: Feature -\u003e\n // Use PlaceFeature to get the placeID of the country.\n if (feature is PlaceFeature) {\n if (selectedPlaceIds.contains((feature as PlaceFeature).getPlaceId())) {\n return@StyleFactory FeatureStyle.Builder()\n // Set the fill color to red.\n .fillColor(Color.RED)\n .build()\n }\n }\n return@StyleFactory null\n }\n\n // Apply the style factory function to the feature layer.\n countryLayer?.setFeatureStyle(styleFactory)\n }\n }\n\n // Get a List of place IDs from the FeatureClickEvent object.\n private fun getPlaceIds(features: List\u003cFeature\u003e): List\u003cString\u003e {\n val placeIds: MutableList\u003cString\u003e = ArrayList()\n for (feature in features) {\n if (feature is PlaceFeature) {\n placeIds.add((feature as PlaceFeature).getPlaceId())\n }\n }\n return placeIds\n }\n ```\n\n \u003cbr /\u003e"]]