added a listener

Author: tsuryo

.idea/codeStyles/Project.xml

@@ -33,6 +33,7 @@ public class Counter extends ConstraintLayout {
     private String mDate;
     private boolean mIsShowingTextDesc;
     private Typeface mTypeFace;
+    private Listener mListener;
 
     public Counter(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -148,6 +149,10 @@ public void setTypeFace(Typeface typeFace) {
         refresh();
     }
 
+    public void setListener(Listener listener) {
+        mListener = listener;
+    }
+
     public Integer getTextColor() {
         return mTextColor;
     }
@@ -232,6 +237,7 @@ public void onTick(long millisUntilFinished) {
                                 MILLISECONDS.toMinutes(millisUntilFinished)) :
                         MILLISECONDS.toSeconds(millisUntilFinished);
                 setText(days, hours, minutes, seconds);
+                notifyListener(millisUntilFinished, days, hours, minutes, seconds);
             }
 
             public void onFinish() {
@@ -262,8 +268,22 @@ private void setText(long days, long hours, long minutes, long seconds) {
         }
     }
 
+    private void notifyListener(long millisUntilFinished, long days,
+                                long hours, long minutes, long seconds) {
+        if (mListener != null) {
+            mListener.onTick(millisUntilFinished);
+            mListener.onTick(days, hours, minutes, seconds);
+        }
+    }
+
     private void refresh() {
         invalidate();
         requestLayout();
     }
+
+    public interface Listener {
+        void onTick(long millisUntilFinished);
+
+        void onTick(long days, long hours, long minutes, long seconds);
+    }
 }

.idea/gradle.xml

@@ -36,13 +36,27 @@ protected void onStart() {
         SimpleDateFormat format = new SimpleDateFormat(
                 "yyyy-MM-dd'T'HH:mm:ss", Locale.getDefault());
         try {
-            Date date = format.parse("2019-07-22T18:33:00");
+            Date date = format.parse("2020-06-10T18:33:00");
             mCounter.setDate(date);
         } catch (ParseException e) {
             e.printStackTrace();
         }
-        mCounter1.setDate("2019-07-22T18:33:00");
+        mCounter1.setDate("2020-06-10T18:33:00");
 
+        mCounter.setListener(new Counter.Listener() {
+            @Override
+            public void onTick(long millisUntilFinished) {
+                Log.d(TAG, "onTick: Counter - " + millisUntilFinished);
+            }
+
+            @Override
+            public void onTick(long days, long hours, long minutes, long seconds) {
+                Log.d(TAG, "onTick: Counter - " + days + "d " +
+                        hours + "h " +
+                        minutes + "m " +
+                        seconds + "s " );
+            }
+        });
 
 //        mCounter.setIsShowingTextDesc(true);
 //        mCounter.setTextColor(R.color.colorPrimary);