Update widget size

app/src/main/java/com/tommasoberlose/anotherwidget/helpers/WidgetHelper.kt

@@ -0,0 +1,42 @@
+package com.tommasoberlose.anotherwidget.helpers
+
+import android.appwidget.AppWidgetManager
+import android.content.Context
+import android.content.res.Configuration.ORIENTATION_PORTRAIT
+
+object WidgetHelper {
+    class WidgetSizeProvider(
+        private val context: Context,
+        private val appWidgetManager: AppWidgetManager
+    ) {
+
+        fun getWidgetsSize(widgetId: Int): Pair<Int, Int> {
+            val isPortrait = context.resources.configuration.orientation == ORIENTATION_PORTRAIT
+            val width = getWidgetWidth(isPortrait, widgetId)
+            val height = getWidgetHeight(isPortrait, widgetId)
+            val widthInPx = context.dip(width)
+            val heightInPx = context.dip(height)
+            return widthInPx to heightInPx
+        }
+
+        private fun getWidgetWidth(isPortrait: Boolean, widgetId: Int): Int =
+            if (isPortrait) {
+                getWidgetSizeInDp(widgetId, AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH)
+            } else {
+                getWidgetSizeInDp(widgetId, AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH)
+            }
+
+        private fun getWidgetHeight(isPortrait: Boolean, widgetId: Int): Int =
+            if (isPortrait) {
+                getWidgetSizeInDp(widgetId, AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT)
+            } else {
+                getWidgetSizeInDp(widgetId, AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT)
+            }
+
+        private fun getWidgetSizeInDp(widgetId: Int, key: String): Int =
+            appWidgetManager.getAppWidgetOptions(widgetId).getInt(key, 0)
+
+        private fun Context.dip(value: Int): Int = (value * resources.displayMetrics.density).toInt()
+
+    }
+}