Added widget color change

app/src/main/kotlin/com/simplemobiletools/voicerecorder/extensions/Context.kt

@@ -1,10 +1,16 @@
 package com.simplemobiletools.voicerecorder.extensions
 
+import android.appwidget.AppWidgetManager
+import android.content.ComponentName
 import android.content.Context
+import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.drawable.Drawable
 import com.simplemobiletools.voicerecorder.helpers.Config
+import com.simplemobiletools.voicerecorder.helpers.IS_RECORDING
+import com.simplemobiletools.voicerecorder.helpers.MyWidgetRecordDisplayProvider
+import com.simplemobiletools.voicerecorder.helpers.TOGGLE_WIDGET_UI
 
 val Context.config: Config get() = Config.newInstance(applicationContext)
 
@@ -16,3 +22,15 @@ fun Context.drawableToBitmap(drawable: Drawable): Bitmap {
     drawable.draw(canvas)
     return mutableBitmap
 }
+
+fun Context.updateWidgets(isRecording: Boolean) {
+    val widgetIDs = AppWidgetManager.getInstance(applicationContext)
+        ?.getAppWidgetIds(ComponentName(applicationContext, MyWidgetRecordDisplayProvider::class.java)) ?: return
+    if (widgetIDs.isNotEmpty()) {
+        Intent(applicationContext, MyWidgetRecordDisplayProvider::class.java).apply {
+            action = TOGGLE_WIDGET_UI
+            putExtra(IS_RECORDING, isRecording)
+            sendBroadcast(this)
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/voicerecorder/helpers/Constants.kt

@@ -25,6 +25,9 @@ const val RECORDING_RUNNING = 0
 const val RECORDING_STOPPED = 1
 const val RECORDING_PAUSED = 2
 
+const val IS_RECORDING = "is_recording"
+const val TOGGLE_WIDGET_UI = "toggle_widget_ui"
+
 // shared preferences
 const val HIDE_NOTIFICATION = "hide_notification"
 const val SAVE_RECORDINGS = "save_recordings"

app/src/main/kotlin/com/simplemobiletools/voicerecorder/helpers/MyWidgetRecordDisplayProvider.kt

@@ -19,16 +19,27 @@ class MyWidgetRecordDisplayProvider : AppWidgetProvider() {
     private val OPEN_APP_INTENT_ID = 1
 
     override fun onUpdate(context: Context, appWidgetManager: AppWidgetManager, appWidgetIds: IntArray) {
+        changeWidgetIcon(appWidgetManager, context, Color.WHITE)
+    }
+
+    override fun onReceive(context: Context, intent: Intent) {
+        if (intent.action == TOGGLE_WIDGET_UI && intent.extras?.containsKey(IS_RECORDING) == true) {
+            val appWidgetManager = AppWidgetManager.getInstance(context) ?: return
+            val color = if (intent.extras!!.getBoolean(IS_RECORDING)) context.config.widgetBgColor else Color.WHITE
+            changeWidgetIcon(appWidgetManager, context, color)
+        } else {
+            super.onReceive(context, intent)
+        }
+    }
+
+    private fun changeWidgetIcon(appWidgetManager: AppWidgetManager, context: Context, color: Int) {
+        val alpha = Color.alpha(context.config.widgetBgColor)
+        val bmp = getColoredIcon(context, color, alpha)
+
         appWidgetManager.getAppWidgetIds(getComponentName(context)).forEach {
             RemoteViews(context.packageName, R.layout.widget_record_display).apply {
                 setupAppOpenIntent(context, this)
-
-                val selectedColor = context.config.widgetBgColor
-                val alpha = Color.alpha(selectedColor)
-
-                val bmp = getColoredIcon(context, selectedColor, alpha)
                 setImageViewBitmap(R.id.record_display_btn, bmp)
-
                 appWidgetManager.updateAppWidget(it, this)
             }
         }

app/src/main/kotlin/com/simplemobiletools/voicerecorder/services/RecorderService.kt

@@ -22,6 +22,7 @@ import com.simplemobiletools.commons.helpers.isQPlus
 import com.simplemobiletools.voicerecorder.R
 import com.simplemobiletools.voicerecorder.activities.SplashActivity
 import com.simplemobiletools.voicerecorder.extensions.config
+import com.simplemobiletools.voicerecorder.extensions.updateWidgets
 import com.simplemobiletools.voicerecorder.helpers.*
 import com.simplemobiletools.voicerecorder.models.Events
 import org.greenrobot.eventbus.EventBus
@@ -61,11 +62,13 @@ class RecorderService : Service() {
         super.onDestroy()
         stopRecording()
         isRunning = false
+        updateWidgets(false)
     }
 
     // mp4 output format with aac encoding should produce good enough m4a files according to https://stackoverflow.com/a/33054794/1967672
     private fun startRecording() {
         isRunning = true
+        updateWidgets(true)
         if (status == RECORDING_RUNNING) {
             return
         }