From c04b86b6b2fed817f72baf70c1ed37fcd485c5de Mon Sep 17 00:00:00 2001
From: bitscuit <thomas@bitscuit.be>
Date: Sun, 4 Apr 2021 08:22:03 +0200
Subject: [PATCH] Added code to ask for microphone permission if not yet
 granted, fixes #2

---
 .../java/be/bitscuit/mike/MainActivity.java   | 39 +++++++++++++++++--
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/be/bitscuit/mike/MainActivity.java b/app/src/main/java/be/bitscuit/mike/MainActivity.java
index e903895..4f563b6 100644
--- a/app/src/main/java/be/bitscuit/mike/MainActivity.java
+++ b/app/src/main/java/be/bitscuit/mike/MainActivity.java
@@ -16,8 +16,12 @@
 
 package be.bitscuit.mike;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.content.ContextCompat;
 
+import android.Manifest;
+import android.content.pm.PackageManager;
 import android.media.AudioAttributes;
 import android.media.AudioFormat;
 import android.media.AudioManager;
@@ -25,7 +29,9 @@ import android.media.AudioRecord;
 import android.media.AudioTrack;
 import android.media.MediaPlayer;
 import android.media.MediaRecorder;
+import android.os.Build;
 import android.os.Bundle;
+import android.os.Process;
 import android.view.WindowManager;
 import android.widget.CompoundButton;
 import android.widget.Switch;
@@ -35,6 +41,9 @@ import static android.os.Process.setThreadPriority;
 
 public class MainActivity extends AppCompatActivity {
 
+    // Static vars
+    private static final int RC_PERMISSIONS = 1000;
+
     // Views
     private TextView textState;
     private Switch switchOnOff, switchMute, switchStandby;
@@ -130,6 +139,14 @@ public class MainActivity extends AppCompatActivity {
     private void recordStart(){
         if(recording) return; // Return if already recording
 
+        // Check if permission to use microphone is granted
+        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M &&
+                ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_DENIED){
+            // Show dialog to user
+            requestPermissions(new String[]{Manifest.permission.RECORD_AUDIO}, RC_PERMISSIONS);
+            return;
+        }
+
         // Start recording
         recording = true;
 
@@ -153,7 +170,7 @@ public class MainActivity extends AppCompatActivity {
                 );
 
                 // Init player
-                setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
+                setThreadPriority(Process.THREAD_PRIORITY_URGENT_AUDIO);
                 AudioTrack audioTrack = new AudioTrack(
                         AudioManager.STREAM_MUSIC,
                         44100,
@@ -213,8 +230,6 @@ public class MainActivity extends AppCompatActivity {
     }
 
 
-
-
     private void updateUI(){
 
         // Set right state text
@@ -229,4 +244,22 @@ public class MainActivity extends AppCompatActivity {
         textState.setText(stateText);
 
     }
+
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        // Check request code
+        switch(requestCode){
+            case RC_PERMISSIONS:
+                // Check if granted
+                if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
+                    // Start recording
+                    recordStart();
+                }else{
+                    // Set main switch to off
+                    switchOnOff.setChecked(false);
+                }
+                return;
+        }
+    }
 }
\ No newline at end of file