From 960fe1d47b10aa24dc2a31c72d466e4c76e5700a Mon Sep 17 00:00:00 2001
From: Johnson Sun <j3.soon777@gmail.com>
Date: Sat, 27 Jan 2024 17:00:49 +0800
Subject: [PATCH] Add POST_NOTIFICATIONS permission to enable background toasts

Error message (with `adb logcat *:E`):

    E NotificationService: Suppressing toast from package com.example.whispertoinput by user request.
---
 android/app/src/main/AndroidManifest.xml      |  1 +
 .../example/whispertoinput/MainActivity.kt    | 47 +++++++++++--------
 .../recorder/RecorderManager.kt               |  5 +-
 android/app/src/main/res/values/strings.xml   |  3 +-
 4 files changed, 35 insertions(+), 21 deletions(-)

diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index fb1c509..e3f2eae 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -24,6 +24,7 @@
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
diff --git a/android/app/src/main/java/com/example/whispertoinput/MainActivity.kt b/android/app/src/main/java/com/example/whispertoinput/MainActivity.kt
index 08e9f61..4364558 100644
--- a/android/app/src/main/java/com/example/whispertoinput/MainActivity.kt
+++ b/android/app/src/main/java/com/example/whispertoinput/MainActivity.kt
@@ -54,7 +54,9 @@ import kotlinx.coroutines.withContext
 import java.io.File
 import java.io.IOException
 
+// 200 and 201 are an arbitrary values, as long as they do not conflict with each other
 private const val MICROPHONE_PERMISSION_REQUEST_CODE = 200
+private const val NOTIFICATION_PERMISSION_REQUEST_CODE = 201
 val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "settings")
 val ENDPOINT = stringPreferencesKey("endpoint")
 val LANGUAGE_CODE = stringPreferencesKey("language-code")
@@ -92,19 +94,25 @@ class MainActivity : AppCompatActivity() {
 
     // Checks whether permissions are granted. If not, automatically make a request.
     private fun checkPermissions() {
-        if (ContextCompat.checkSelfPermission(
-                this,
-                Manifest.permission.RECORD_AUDIO
-            ) == PackageManager.PERMISSION_DENIED
-        ) {
-            // Shows a popup for permission request.
-            // If the permission has been previously (hard-)denied, the popup will not show.
-            // onRequestPermissionsResult will be called in either case.
-            ActivityCompat.requestPermissions(
-                this,
-                RecorderManager.requiredPermissions(),
-                MICROPHONE_PERMISSION_REQUEST_CODE
-            )
+        val permission_and_code = arrayOf(
+            Pair(Manifest.permission.RECORD_AUDIO, MICROPHONE_PERMISSION_REQUEST_CODE),
+            Pair(Manifest.permission.POST_NOTIFICATIONS, NOTIFICATION_PERMISSION_REQUEST_CODE),
+        )
+        for ((permission, code) in permission_and_code) {
+            if (ContextCompat.checkSelfPermission(
+                    this,
+                    permission
+                ) == PackageManager.PERMISSION_DENIED
+            ) {
+                // Shows a popup for permission request.
+                // If the permission has been previously (hard-)denied, the popup will not show.
+                // onRequestPermissionsResult will be called in either case.
+                ActivityCompat.requestPermissions(
+                    this,
+                    arrayOf(permission),
+                    code
+                )
+            }
         }
     }
 
@@ -115,20 +123,21 @@ class MainActivity : AppCompatActivity() {
         grantResults: IntArray
     ) {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        var msg: String;
 
         // Only handles requests marked with the unique code.
-        if (requestCode != MICROPHONE_PERMISSION_REQUEST_CODE) {
+        if (requestCode == MICROPHONE_PERMISSION_REQUEST_CODE) {
+            msg = getString(R.string.mic_permission_required)
+        } else if (requestCode == NOTIFICATION_PERMISSION_REQUEST_CODE) {
+            msg = getString(R.string.notification_permission_required)
+        } else {
             return
         }
 
         // All permissions should be granted.
         for (result in grantResults) {
             if (result != PackageManager.PERMISSION_GRANTED) {
-                Toast.makeText(
-                    this,
-                    getString(R.string.mic_permission_required),
-                    Toast.LENGTH_SHORT
-                ).show()
+                Toast.makeText(this, msg, Toast.LENGTH_SHORT).show()
                 return
             }
         }
diff --git a/android/app/src/main/java/com/example/whispertoinput/recorder/RecorderManager.kt b/android/app/src/main/java/com/example/whispertoinput/recorder/RecorderManager.kt
index dca42b8..c758405 100644
--- a/android/app/src/main/java/com/example/whispertoinput/recorder/RecorderManager.kt
+++ b/android/app/src/main/java/com/example/whispertoinput/recorder/RecorderManager.kt
@@ -38,7 +38,10 @@ private const val MEDIA_RECORDER_CONSTRUCTOR_DEPRECATION_API_LEVEL = 31
 
 class RecorderManager(context: Context) {
     companion object {
-        fun requiredPermissions() = arrayOf(Manifest.permission.RECORD_AUDIO)
+        fun requiredPermissions() = arrayOf(
+            Manifest.permission.RECORD_AUDIO,
+            Manifest.permission.POST_NOTIFICATIONS,
+        )
     }
 
     private var recorder: MediaRecorder? = null
diff --git a/android/app/src/main/res/values/strings.xml b/android/app/src/main/res/values/strings.xml
index 5d6e868..be95259 100644
--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
@@ -12,7 +12,8 @@
     <string name="start_speech_to_text">Start speech-to-text.</string>
     <string name="start_transcribing">Start transcribing.</string>
     <string name="grant_microphone_permission">Grant Microphone Permission</string>
-    <string name="mic_permission_required">Whisper to Input requires microphone usage to work.</string>
+    <string name="mic_permission_required">Whisper to Input requires microphone permission to work.</string>
+    <string name="notification_permission_required">Whisper to Input requires notification permission to work.</string>
     <string name="microphone">Microphone</string>
     <string name="successfully_set">Successfully set!</string>
     <string name="backspace_button_hint">Backspace Button</string>