update sms plugin

packages/flutter_sms/android/.gitignore

@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

packages/flutter_sms/android/build.gradle

@@ -0,0 +1,44 @@
+group 'com.example.flutter_sms'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    ext.kotlin_version = '1.9.0'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.4.2'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion 34
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+    defaultConfig {
+        minSdkVersion 16
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}

packages/flutter_sms/android/gradle.properties

@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true

packages/flutter_sms/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Mon Oct 28 10:41:06 EDT 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip

packages/flutter_sms/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'flutter_sms'

packages/flutter_sms/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.example.flutter_sms">
+</manifest>

packages/flutter_sms/android/src/main/kotlin/com/example/flutter_sms/FlutterSmsPlugin.kt

@@ -0,0 +1,139 @@
+package com.example.flutter_sms
+
+import android.annotation.TargetApi
+import android.app.Activity
+import android.app.PendingIntent
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import android.os.Build
+import android.telephony.SmsManager
+import android.util.Log
+import androidx.annotation.NonNull
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.embedding.engine.plugins.activity.ActivityAware
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
+import io.flutter.plugin.common.BinaryMessenger
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import io.flutter.plugin.common.MethodChannel.Result
+import io.flutter.plugin.common.PluginRegistry.Registrar
+
+
+class FlutterSmsPlugin: FlutterPlugin, MethodCallHandler, ActivityAware {
+  private lateinit var mChannel: MethodChannel
+  private var activity: Activity? = null
+  private val REQUEST_CODE_SEND_SMS = 205
+
+  override fun onAttachedToActivity(binding: ActivityPluginBinding) {
+    activity = binding.activity
+  }
+
+  override fun onDetachedFromActivity() {
+    activity = null
+  }
+
+  override fun onDetachedFromActivityForConfigChanges() {
+    activity = null
+  }
+
+  override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
+    activity = binding.activity
+  }
+
+  override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
+    setupCallbackChannels(flutterPluginBinding.binaryMessenger)
+  }
+
+  override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
+    teardown()
+  }
+
+  private fun setupCallbackChannels(messenger: BinaryMessenger) {
+    mChannel = MethodChannel(messenger, "flutter_sms")
+    mChannel.setMethodCallHandler(this)
+  }
+
+  private fun teardown() {
+    mChannel.setMethodCallHandler(null)
+  }
+
+  // V1 embedding entry point. This is deprecated and will be removed in a future Flutter
+  // release but we leave it here in case someone's app does not utilize the V2 embedding yet.
+  companion object {
+    @JvmStatic
+    fun registerWith(registrar: Registrar) {
+      val inst = FlutterSmsPlugin()
+      inst.activity = registrar.activity()
+      inst.setupCallbackChannels(registrar.messenger())
+    }
+  }
+
+  override fun onMethodCall(call: MethodCall, result: Result) {
+    when (call.method) {
+        "sendSMS" -> {
+          if (!canSendSMS()) {
+            result.error(
+                    "device_not_capable",
+                    "The current device is not capable of sending text messages.",
+                    "A device may be unable to send messages if it does not support messaging or if it is not currently configured to send messages. This only applies to the ability to send text messages via iMessage, SMS, and MMS.")
+            return
+          }
+          val message = call.argument<String?>("message") ?: ""
+          val recipients = call.argument<String?>("recipients") ?: ""
+          val sendDirect = call.argument<Boolean?>("sendDirect") ?: false
+          sendSMS(result, recipients, message!!, sendDirect)
+        }
+        "canSendSMS" -> result.success(canSendSMS())
+        else -> result.notImplemented()
+    }
+  }
+
+  @TargetApi(Build.VERSION_CODES.ECLAIR)
+  private fun canSendSMS(): Boolean {
+    if (!activity!!.packageManager.hasSystemFeature(PackageManager.FEATURE_TELEPHONY))
+      return false
+    val intent = Intent(Intent.ACTION_SENDTO)
+    intent.data = Uri.parse("smsto:")
+    val activityInfo = intent.resolveActivityInfo(activity!!.packageManager, intent.flags.toInt())
+    return !(activityInfo == null || !activityInfo.exported)
+  }
+
+  private fun sendSMS(result: Result, phones: String, message: String, sendDirect: Boolean) {
+    if (sendDirect) {
+      sendSMSDirect(result, phones, message);
+    }
+    else {
+      sendSMSDialog(result, phones, message);
+    }
+  }
+
+  private fun sendSMSDirect(result: Result, phones: String, message: String) {
+    // SmsManager is android.telephony
+    val sentIntent = PendingIntent.getBroadcast(activity, 0, Intent("SMS_SENT_ACTION"), PendingIntent.FLAG_IMMUTABLE)
+    val mSmsManager = SmsManager.getDefault()
+    val numbers = phones.split(";")
+
+    for (num in numbers) {
+      Log.d("Flutter SMS", "msg.length() : " + message.toByteArray().size)
+      if (message.toByteArray().size > 80) {
+        val partMessage = mSmsManager.divideMessage(message)
+        mSmsManager.sendMultipartTextMessage(num, null, partMessage, null, null)
+      } else {
+        mSmsManager.sendTextMessage(num, null, message, sentIntent, null)
+      }
+    }
+
+    result.success("SMS Sent!")
+  }
+
+  private fun sendSMSDialog(result: Result, phones: String, message: String) {
+    val intent = Intent(Intent.ACTION_SENDTO)
+    intent.data = Uri.parse("smsto:$phones")
+    intent.putExtra("sms_body", message)
+    intent.putExtra(Intent.EXTRA_TEXT, message)
+    activity?.startActivityForResult(intent, REQUEST_CODE_SEND_SMS)
+    result.success("SMS Sent!")
+  }
+}