ADD file via upload

testing/EventDecorator.java

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+package com.example.doitnow;
+
+import android.graphics.Color;
+import android.text.style.ForegroundColorSpan;
+
+import com.prolificinteractive.materialcalendarview.DayViewDecorator;
+import com.prolificinteractive.materialcalendarview.DayViewFacade;
+import com.prolificinteractive.materialcalendarview.CalendarDay;
+import com.prolificinteractive.materialcalendarview.spans.DotSpan;
+
+import java.util.Collection;
+import java.util.HashSet;
+
+public class EventDecorator implements DayViewDecorator {
+    private final int color;
+    private final HashSet<CalendarDay> dates;
+
+    public EventDecorator(int color, Collection<CalendarDay> dates) {
+        this.color = color;
+        this.dates = new HashSet<>(dates);
+    }
+
+    @Override
+    public boolean shouldDecorate(CalendarDay day) {
+        return dates.contains(day);
+    }
+
+    @Override
+    public void decorate(DayViewFacade view) {
+        view.addSpan(new DotSpan(6, color)); // 半徑與顏色
+    }
+}