Render Flutter Widgets

1. Add an image UI element to your xml file:

   <ImageView
          android:id="@+id/widget_image"
          android:layout_width="200dp"
          android:layout_height="200dp"
          android:layout_below="@+id/headline_description"
          android:layout_alignBottom="@+id/headline_title"
          android:layout_alignParentStart="true"
          android:layout_alignParentLeft="true"
          android:layout_marginStart="8dp"
          android:layout_marginLeft="8dp"
          android:layout_marginTop="6dp"
          android:layout_marginBottom="-134dp"
          android:layout_weight="1"
          android:adjustViewBounds="true"
          android:background="@android:color/white"
          android:scaleType="fitCenter"
          android:src="@android:drawable/star_big_on"
          android:visibility="visible"
          tools:visibility="visible" />
   

2. Update your Kotlin code to get the chart image and put it into the widget, if it exists.

   class NewsWidget : AppWidgetProvider() {
      override fun onUpdate(
          context: Context,
          appWidgetManager: AppWidgetManager,
          appWidgetIds: IntArray,
      ) {
          for (appWidgetId in appWidgetIds) {
              // Get reference to SharedPreferences
              val widgetData = HomeWidgetPlugin.getData(context)
              val views = RemoteViews(context.packageName, R.layout.news_widget).apply {
                  // Get chart image and put it in the widget, if it exists
                  val imagePath = widgetData.getString("lineChart", null)
                  val imageFile = File(imagePath)
                  val imageExists = imageFile.exists()
                  if (imageExists) {
                     val myBitmap: Bitmap = BitmapFactory.decodeFile(imageFile.absolutePath)
                     setImageViewBitmap(R.id.widget_image, myBitmap)
                  } else {
                     println("image not found!, looked @: $imagePath")
                  }
                  // End new code
              }
              appWidgetManager.updateAppWidget(appWidgetId, views)
          }
      }
   }