notes: add icons to use previous/next event as template

app/src/main/java/it/danieleverducci/lunatracker/MainActivity.kt

@@ -299,6 +299,7 @@ class MainActivity : AppCompatActivity() {
         val qtyET = dialogView.findViewById<EditText>(R.id.notes_qty_edittext)
 
         val nextTextView = dialogView.findViewById<TextView>(R.id.notes_template_next)
+        val clearTextView = dialogView.findViewById<TextView>(R.id.notes_clear)
         val prevTextView = dialogView.findViewById<TextView>(R.id.notes_template_prev)
 
         fun updateContent(current: LunaEvent) {
@@ -322,12 +323,6 @@ class MainActivity : AppCompatActivity() {
             } else {
                 nextTextView.setOnClickListener {}
                 nextTextView.alpha = 0.5f
-
-                // clear fields
-                notesET.setText("")
-                if (useQuantity) {
-                    qtyET.setText("")
-                }
             }
 
             if (prevEvent != null) {
@@ -345,6 +340,14 @@ class MainActivity : AppCompatActivity() {
             }
         }
 
+        clearTextView.setOnClickListener {
+            notesET.setText("")
+            if (useQuantity) {
+                qtyET.setText("")
+            }
+            updateContent(lunaEvent)
+        }
+
         if (!useQuantity) {
             qtyET.visibility = View.GONE
         }

app/src/main/res/layout/dialog_notes.xml

@@ -37,7 +37,13 @@
             android:layout_height="wrap_content"
             android:textSize="18dp"
             android:text="⬅️"/>
-
+        <TextView
+            android:id="@+id/notes_clear"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="5dp"
+            android:textSize="18dp"
+            android:text="🚫"/>
         <TextView
             android:id="@+id/notes_template_next"
             android:layout_width="wrap_content"