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Merge pull request #19 from ArcGIS/sample/display-feature-layers
New sample: Add feature layers
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‎add-feature-layers/.gitignore‎

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/build

‎add-feature-layers/README.md‎

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# Add feature layers
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Add feature layers from various data sources.
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![Add feature layers](add-feature-layers.png)
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## Use case
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Feature layers, like all layers, are visual representations of data and are used on a map or scene. In the case of feature layers, the underlying data is held in a feature table or feature service.
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Feature services are useful for sharing vector GIS data with clients so that individual features can be queried, displayed, and edited. There are various online and offline methods to load feature services.
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## How to use the sample
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Tap the button on the bottom menu to add feature layers, from different sources, to the map. Pan and zoom the map to view the feature layers.
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## How it works
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1. Set the basemap with a `BasemapStyle`.
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2. Load a feature layer with a URL.
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i. Create a `ServiceFeatureTable` from a URL.
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ii. Create a `FeatureLayer` with the feature table.
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3. Load a feature layer with a portal item.
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i. Create a `PortalItem` with the portal and item ID.
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ii. Create a `FeatureLayer` with the portal item and with or without the layer ID.
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4. Load a feature layer with a geodatabase.
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i. Instantiate and load a `Geodatabase` using the file name.
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ii. Get the feature table from the geodatabase with the feature table's name.
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iii. Create a `FeatureLayer` from the feature table.
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5. Load a feature layer with a geopackage.
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i. Instantiate and load a geopackage using its file name.
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ii. Get the first `GeoPackageFeatureTable` from the `GeoPackage.geoPackageFeatureTables` array.
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iii. Create a `FeatureLayer` from the feature table.
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6. Load a feature layer with a shapefile.
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i. Create a `ShapefileFeatureTable` using the shapefile path.
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ii. Create a `FeatureLayer` from the feature table and load it.
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7. Add the feature layer to the map's `OperationalLayers`.
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## Relevant API
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* FeatureLayer
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* Geodatabase
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* GeoPackageFeatureTable
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* PortalItem
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* ServiceFeatureTable
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* ShapefileFeatureTable
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## About the data
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This sample uses the [Naperville damage assessment service](https://sampleserver7.arcgisonline.com/server/rest/services/DamageAssessment/FeatureServer/0), [Trees of Portland portal item](https://www.arcgis.com/home/item.html?id=1759fd3e8a324358a0c58d9a687a8578), [Los Angeles Trailheads geodatabase](https://www.arcgis.com/home/item.html?id=2b0f9e17105847809dfeb04e3cad69e0), [Aurora, Colorado GeoPackage](https://www.arcgis.com/home/item.html?id=68ec42517cdd439e81b036210483e8e7), and [Scottish Wildlife Trust Reserves Shapefile](https://www.arcgis.com/home/item.html?id=15a7cbd3af1e47cfa5d2c6b93dc44fc2).
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The Scottish Wildlife Trust shapefile data is provided from Scottish Wildlife Trust under [CC-BY licence](https://creativecommons.org/licenses/by/4.0/). Data Copyright Scottish Wildlife Trust (2022).
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## Tags
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feature, geodatabase, geopackage, layers, service, shapefile, table

‎add-feature-layers/README.metadata.json‎

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{
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"category": "Layers",
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"description": "Add feature layers from various data sources.",
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"formal_name": "AddFeatureLayers",
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"ignore": false,
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"images": [
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"add-feature-layers.png"
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],
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"keywords": [
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"feature",
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"geodatabase",
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"geopackage",
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"layers",
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"service",
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"shapefile",
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"table",
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"FeatureLayer",
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"GeoPackageFeatureTable",
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"Geodatabase",
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"PortalItem",
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"ServiceFeatureTable",
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"ShapefileFeatureTable"
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],
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"language": "kotlin",
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"redirect_from": [
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"/android/latest/sample-code/feature-layer-feature-service.htm",
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"/android/latest/sample-code/feature-layer-geodatabase.htm",
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"/android/latest/sample-code/feature-layer-geopackage.htm",
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"/android/latest/sample-code/feature-layer-shapefile.htm"
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],
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"relevant_apis": [
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"FeatureLayer",
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"GeoPackageFeatureTable",
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"Geodatabase",
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"PortalItem",
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"ServiceFeatureTable",
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"ShapefileFeatureTable"
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],
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"snippets": [
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"src/main/java/com/esri/arcgisruntime/sample/addfeaturelayers/DownloadActivity.kt",
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"src/main/java/com/esri/arcgisruntime/sample/addfeaturelayers/MainActivity.kt"
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],
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"title": "Add feature layers"
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}

‎add-feature-layers/add-feature-layers.png‎

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‎add-feature-layers/build.gradle‎

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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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android {
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compileSdkVersion rootProject.ext.compileSdkVersion
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defaultConfig {
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applicationId "com.esri.arcgisruntime.sample.addfeaturelayers"
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minSdkVersion rootProject.ext.minSdkVersion
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targetSdkVersion rootProject.ext.targetSdkVersion
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versionCode rootProject.ext.versionCode
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versionName rootProject.ext.versionName
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buildConfigField("String", "API_KEY", API_KEY)
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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buildFeatures {
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dataBinding true
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}
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}
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dependencies {
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// lib dependencies from rootProject build.gradle
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implementation "androidx.constraintlayout:constraintlayout:$constraintLayoutVersion"
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implementation "com.google.android.material:material:$materialVersion"
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implementation "androidx.appcompat:appcompat:$appcompatVersion"
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implementation project(path: ':samples-lib')
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}

‎add-feature-layers/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎add-feature-layers/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.esri.arcgisruntime.sample.addfeaturelayers">
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<uses-permission android:name="android.permission.INTERNET" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity
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android:name=".DownloadActivity"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<activity
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android:name=".MainActivity"
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android:exported="true"
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android:label="@string/app_name">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎add-feature-layers/src/main/java/com/esri/arcgisruntime/sample/addfeaturelayers/DownloadActivity.kt‎

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package com.esri.arcgisruntime.sample.addfeaturelayers
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import android.content.Intent
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import android.os.Bundle
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import com.esri.arcgisruntime.sample.sampleslib.DownloaderActivity
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class DownloadActivity : DownloaderActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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downloadAndStartSample(
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Intent(this, MainActivity::class.java),
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// get the download path of the sample
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getExternalFilesDir(null)?.path.toString(),
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listOf(
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// ArcGIS Portal item containing the .mmpk mobile map package
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"https://www.arcgis.com/home/item.html?id=2b0f9e17105847809dfeb04e3cad69e0",
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// ArcGIS Portal item containing shapefiles of Scottish Wildlife Trust reserve boundaries
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"https://www.arcgis.com/home/item.html?id=15a7cbd3af1e47cfa5d2c6b93dc44fc2",
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// GeoPackage AuroraCO.gpkg with datasets that cover Aurora Colorado
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"https://www.arcgis.com/home/item.html?id=68ec42517cdd439e81b036210483e8e7"
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)
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)
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}
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}

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