feat(shell): support opening URLs on mobile (#1319)

* feat(shell): support opening URLs on mobile

closes #595

* Update and rename StorePlugin.swift to ShellPlugin.swift

* unwrap

* fix func name (ios)

* use undeprecated func if avail

---------

Co-authored-by: fabianlars <fabianlars@fabianlars.de>

plugins/shell/android/.gitignore

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+/build
+/.tauri

plugins/shell/android/build.gradle.kts

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+plugins {
+    id("com.android.library")
+    id("org.jetbrains.kotlin.android")
+}
+
+android {
+    namespace = "app.tauri.shell"
+    compileSdk = 33
+
+    defaultConfig {
+        minSdk = 19
+        targetSdk = 33
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
+dependencies {
+    implementation("androidx.core:core-ktx:1.9.0")
+    implementation("com.fasterxml.jackson.core:jackson-databind:2.15.3")
+    implementation(project(":tauri-android"))
+}

plugins/shell/android/proguard-rules.pro

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

plugins/shell/android/settings.gradle

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+include ':tauri-android'
+project(':tauri-android').projectDir = new File('./.tauri/tauri-api')

plugins/shell/android/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+</manifest>

plugins/shell/android/src/main/java/ShellPlugin.kt

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+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+package app.tauri.shell
+
+import android.app.Activity
+import android.content.Intent
+import android.net.Uri
+import app.tauri.annotation.Command
+import app.tauri.annotation.TauriPlugin
+import app.tauri.plugin.Invoke
+import app.tauri.plugin.Plugin
+import java.io.File
+
+@TauriPlugin
+class ShellPlugin(private val activity: Activity) : Plugin(activity) {
+    @Command
+    fun open(invoke: Invoke) {
+        try {
+            val url = invoke.parseArgs(String::class.java)
+            val intent = Intent(Intent.ACTION_VIEW, Uri.parse(url))
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            activity?.applicationContext?.startActivity(intent)
+            invoke.resolve()
+        } catch (ex: Exception) {
+            invoke.reject(ex.message)
+        }
+    }
+}