feat: add with-expo example (#314)

example/with-expo/.gitignore

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+node_modules/
+.expo/
+dist/
+npm-debug.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+*.orig.*
+web-build/
+
+# macOS
+.DS_Store
+
+# Temporary files created by Metro to check the health of the file watcher
+.metro-health-check*

example/with-expo/.prettierrc

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+{
+  "printWidth": 100,
+  "tabWidth": 2,
+  "singleQuote": true,
+  "bracketSameLine": true,
+  "trailingComma": "es5"
+}

example/with-expo/App.tsx

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+import { StatusBar } from 'expo-status-bar';
+import { ScrollView, StyleSheet, View } from 'react-native';
+import { useEffect } from 'react';
+import { ConnectToSSID } from './components/ConnectToSSID';
+import { requestForegroundPermissionsAsync } from 'expo-location';
+import { CurrentSSID } from './components/CurrentSSID';
+import { Disconnect } from './components/Disconnect';
+
+const askLocationPermission = async () => {
+  const res = await requestForegroundPermissionsAsync();
+  console.log(res);
+};
+
+export default function App() {
+  useEffect(() => {
+    askLocationPermission();
+  }, []);
+
+  return (
+    <ScrollView style={styles.screen} contentInsetAdjustmentBehavior="automatic">
+      <StatusBar style="dark" translucent={false} />
+      <View style={styles.container}>
+        <CurrentSSID />
+        <ConnectToSSID />
+        <Disconnect />
+      </View>
+    </ScrollView>
+  );
+}
+
+const styles = StyleSheet.create({
+  screen: {
+    flex: 1,
+    backgroundColor: '#f2f2f7',
+  },
+  container: {
+    flex: 1,
+    padding: 16,
+    gap: 12,
+  },
+});

example/with-expo/android/.gitignore

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+# OSX
+#
+.DS_Store
+
+# Android/IntelliJ
+#
+build/
+.idea
+.gradle
+local.properties
+*.iml
+*.hprof
+
+# Bundle artifacts
+*.jsbundle

example/with-expo/android/app/build.gradle

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+apply plugin: "com.android.application"
+apply plugin: "com.facebook.react"
+
+import com.android.build.OutputFile
+
+def projectRoot = rootDir.getAbsoluteFile().getParentFile().getAbsolutePath()
+def expoDebuggableVariants = ['debug']
+// Override `debuggableVariants` for expo-updates debugging
+if (System.getenv('EX_UPDATES_NATIVE_DEBUG') == "1") {
+  react {
+    expoDebuggableVariants = []
+  }
+}
+
+
+/**
+ * This is the configuration block to customize your React Native Android app.
+ * By default you don't need to apply any configuration, just uncomment the lines you need.
+ */
+react {
+    entryFile = file(["node", "-e", "require('expo/scripts/resolveAppEntry')", projectRoot, "android", "absolute"].execute(null, rootDir).text.trim())
+    reactNativeDir = new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsoluteFile()
+    hermesCommand = new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsolutePath() + "/sdks/hermesc/%OS-BIN%/hermesc"
+    debuggableVariants = expoDebuggableVariants
+
+    /* Folders */
+    //   The root of your project, i.e. where "package.json" lives. Default is '..'
+    // root = file("../")
+    //   The folder where the react-native NPM package is. Default is ../node_modules/react-native
+    // reactNativeDir = file("../node_modules/react-native")
+    //   The folder where the react-native Codegen package is. Default is ../node_modules/react-native-codegen
+    // codegenDir = file("../node_modules/react-native-codegen")
+    //   The cli.js file which is the React Native CLI entrypoint. Default is ../node_modules/react-native/cli.js
+    // cliFile = file("../node_modules/react-native/cli.js")
+
+    /* Variants */
+    //   The list of variants to that are debuggable. For those we're going to
+    //   skip the bundling of the JS bundle and the assets. By default is just 'debug'.
+    //   If you add flavors like lite, prod, etc. you'll have to list your debuggableVariants.
+    // debuggableVariants = ["liteDebug", "prodDebug"]
+
+    /* Bundling */
+    //   A list containing the node command and its flags. Default is just 'node'.
+    // nodeExecutableAndArgs = ["node"]
+    //
+    //   The command to run when bundling. By default is 'bundle'
+    // bundleCommand = "ram-bundle"
+    //
+    //   The path to the CLI configuration file. Default is empty.
+    // bundleConfig = file(../rn-cli.config.js)
+    //
+    //   The name of the generated asset file containing your JS bundle
+    // bundleAssetName = "MyApplication.android.bundle"
+    //
+    //   The entry file for bundle generation. Default is 'index.android.js' or 'index.js'
+    // entryFile = file("../js/MyApplication.android.js")
+    //
+    //   A list of extra flags to pass to the 'bundle' commands.
+    //   See https://github.com/react-native-community/cli/blob/main/docs/commands.md#bundle
+    // extraPackagerArgs = []
+
+    /* Hermes Commands */
+    //   The hermes compiler command to run. By default it is 'hermesc'
+    // hermesCommand = "$rootDir/my-custom-hermesc/bin/hermesc"
+    //
+    //   The list of flags to pass to the Hermes compiler. By default is "-O", "-output-source-map"
+    // hermesFlags = ["-O", "-output-source-map"]
+}
+
+// Override `hermesEnabled` by `expo.jsEngine`
+ext {
+  hermesEnabled = (findProperty('expo.jsEngine') ?: "hermes") == "hermes"
+}
+
+/**
+ * Set this to true to create four separate APKs instead of one,
+ * one for each native architecture. This is useful if you don't
+ * use App Bundles (https://developer.android.com/guide/app-bundle/)
+ * and want to have separate APKs to upload to the Play Store.
+ */
+def enableSeparateBuildPerCPUArchitecture = false
+
+/**
+ * Set this to true to Run Proguard on Release builds to minify the Java bytecode.
+ */
+def enableProguardInReleaseBuilds = (findProperty('android.enableProguardInReleaseBuilds') ?: false).toBoolean()
+
+/**
+ * The preferred build flavor of JavaScriptCore (JSC)
+ *
+ * For example, to use the international variant, you can use:
+ * `def jscFlavor = 'org.webkit:android-jsc-intl:+'`
+ *
+ * The international variant includes ICU i18n library and necessary data
+ * allowing to use e.g. `Date.toLocaleString` and `String.localeCompare` that
+ * give correct results when using with locales other than en-US. Note that
+ * this variant is about 6MiB larger per architecture than default.
+ */
+def jscFlavor = 'org.webkit:android-jsc:+'
+
+/**
+ * Private function to get the list of Native Architectures you want to build.
+ * This reads the value from reactNativeArchitectures in your gradle.properties
+ * file and works together with the --active-arch-only flag of react-native run-android.
+ */
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
+
+android {
+    ndkVersion rootProject.ext.ndkVersion
+
+    compileSdkVersion rootProject.ext.compileSdkVersion
+
+    namespace 'com.rnwifi.withexpo'
+    defaultConfig {
+        applicationId 'com.rnwifi.withexpo'
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 1
+        versionName "1.0.0"
+    }
+
+    splits {
+        abi {
+            reset()
+            enable enableSeparateBuildPerCPUArchitecture
+            universalApk false  // If true, also generate a universal APK
+            include (*reactNativeArchitectures())
+        }
+    }
+    signingConfigs {
+        debug {
+            storeFile file('debug.keystore')
+            storePassword 'android'
+            keyAlias 'androiddebugkey'
+            keyPassword 'android'
+        }
+    }
+    buildTypes {
+        debug {
+            signingConfig signingConfigs.debug
+        }
+        release {
+            // Caution! In production, you need to generate your own keystore file.
+            // see https://reactnative.dev/docs/signed-apk-android.
+            signingConfig signingConfigs.debug
+            shrinkResources (findProperty('android.enableShrinkResourcesInReleaseBuilds')?.toBoolean() ?: false)
+            minifyEnabled enableProguardInReleaseBuilds
+            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
+        }
+    }
+
+    // applicationVariants are e.g. debug, release
+    applicationVariants.all { variant ->
+        variant.outputs.each { output ->
+            // For each separate APK per architecture, set a unique version code as described here:
+            // https://developer.android.com/studio/build/configure-apk-splits.html
+            // Example: versionCode 1 will generate 1001 for armeabi-v7a, 1002 for x86, etc.
+            def versionCodes = ["armeabi-v7a": 1, "x86": 2, "arm64-v8a": 3, "x86_64": 4]
+            def abi = output.getFilter(OutputFile.ABI)
+            if (abi != null) {  // null for the universal-debug, universal-release variants
+                output.versionCodeOverride =
+                        defaultConfig.versionCode * 1000 + versionCodes.get(abi)
+            }
+
+        }
+    }
+}
+
+// Apply static values from `gradle.properties` to the `android.packagingOptions`
+// Accepts values in comma delimited lists, example:
+// android.packagingOptions.pickFirsts=/LICENSE,**/picasa.ini
+["pickFirsts", "excludes", "merges", "doNotStrip"].each { prop ->
+    // Split option: 'foo,bar' -> ['foo', 'bar']
+    def options = (findProperty("android.packagingOptions.$prop") ?: "").split(",");
+    // Trim all elements in place.
+    for (i in 0..<options.size()) options[i] = options[i].trim();
+    // `[] - ""` is essentially `[""].filter(Boolean)` removing all empty strings.
+    options -= ""
+
+    if (options.length > 0) {
+        println "android.packagingOptions.$prop += $options ($options.length)"
+        // Ex: android.packagingOptions.pickFirsts += '**/SCCS/**'
+        options.each {
+            android.packagingOptions[prop] += it
+        }
+    }
+}
+
+dependencies {
+    // The version of react-native is set by the React Native Gradle Plugin
+    implementation("com.facebook.react:react-android")
+
+    def isGifEnabled = (findProperty('expo.gif.enabled') ?: "") == "true";
+    def isWebpEnabled = (findProperty('expo.webp.enabled') ?: "") == "true";
+    def isWebpAnimatedEnabled = (findProperty('expo.webp.animated') ?: "") == "true";
+    def frescoVersion = rootProject.ext.frescoVersion
+
+    // If your app supports Android versions before Ice Cream Sandwich (API level 14)
+    if (isGifEnabled || isWebpEnabled) {
+        implementation("com.facebook.fresco:fresco:${frescoVersion}")
+        implementation("com.facebook.fresco:imagepipeline-okhttp3:${frescoVersion}")
+    }
+
+    if (isGifEnabled) {
+        // For animated gif support
+        implementation("com.facebook.fresco:animated-gif:${frescoVersion}")
+    }
+
+    if (isWebpEnabled) {
+        // For webp support
+        implementation("com.facebook.fresco:webpsupport:${frescoVersion}")
+        if (isWebpAnimatedEnabled) {
+            // Animated webp support
+            implementation("com.facebook.fresco:animated-webp:${frescoVersion}")
+        }
+    }
+
+    implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.0.0")
+
+    debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}")
+    debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
+        exclude group:'com.squareup.okhttp3', module:'okhttp'
+    }
+    debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}")
+
+    if (hermesEnabled.toBoolean()) {
+        implementation("com.facebook.react:hermes-android")
+    } else {
+        implementation jscFlavor
+    }
+}
+
+apply from: new File(["node", "--print", "require.resolve('@react-native-community/cli-platform-android/package.json')"].execute(null, rootDir).text.trim(), "../native_modules.gradle");
+applyNativeModulesAppBuildGradle(project)

example/with-expo/android/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# react-native-reanimated
+-keep class com.swmansion.reanimated.** { *; }
+-keep class com.facebook.react.turbomodule.** { *; }
+
+# Add any project specific keep options here:

example/with-expo/android/app/src/debug/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+
+    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" />
+</manifest>