Imported Alarm countdown text

app/src/main/java/com/philliphsu/clock2/DurationDisplayer.java

@@ -0,0 +1,26 @@
+package com.philliphsu.clock2;
+
+import android.support.annotation.NonNull;
+
+/**
+ * Created by Phillip Hsu on 4/30/2016.
+ */
+public interface DurationDisplayer {
+    /**
+     * Callback interface to be implemented by a parent/host of this displayer.
+     * The host should use this to tell its displayer to update its duration text
+     * via showAsText(long).
+     */
+    /*public*/ interface OnTickListener {
+        // Listeners implement this to be notified of when
+        // they should update this displayer's text
+        void onTick();
+    }
+
+    /** Hosts of this displayer use this to attach themselves */
+    void setOnTickListener(@NonNull OnTickListener listener);
+    void startTicking(boolean resume);
+    void stopTicking();
+    void forceTick();
+    void showAsText(long duration);
+}

app/src/main/java/com/philliphsu/clock2/TickHandler.java

@@ -0,0 +1,71 @@
+package com.philliphsu.clock2;
+
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.os.SystemClock;
+import android.support.annotation.NonNull;
+
+import com.philliphsu.clock2.DurationDisplayer.OnTickListener;
+
+import static com.philliphsu.clock2.util.Preconditions.checkNotNull;
+
+/**
+ * Created by Phillip Hsu on 4/18/2016.
+ */
+public class TickHandler extends Handler {
+    private static final int MSG_TICK = 0;
+    private static final int MSG_FORCE_TICK = 1;
+
+    @NonNull private final OnTickListener mOnTickListener;
+    private final long mTickInterval;
+
+    public TickHandler(@NonNull OnTickListener listener, long tickInterval) {
+        super(Looper.getMainLooper());
+        mOnTickListener = checkNotNull(listener);
+        mTickInterval = tickInterval;
+    }
+
+    @Override
+    public void handleMessage(Message msg) {
+        // Account for the time showDuration() takes to execute
+        // and subtract that off from the countdown interval
+        // (so the countdown doesn't get postponed by however long
+        // showDuration() takes)
+        long startOnTick = SystemClock.elapsedRealtime();
+        mOnTickListener.onTick();
+        long countdownRemainder = mTickInterval -
+                (SystemClock.elapsedRealtime() - startOnTick);
+
+        // special case: onTick took longer than countdown
+        // interval to complete, skip to next interval
+        while (countdownRemainder < 0)
+            countdownRemainder += mTickInterval;
+
+        if (msg.what == MSG_TICK) { // as opposed to MSG_FORCE_TICK
+            sendMessageDelayed(obtainMessage(MSG_TICK), mTickInterval);
+        }
+    }
+
+    public void startTicking(boolean resume) {
+        if (hasMessages(MSG_TICK))
+            return;
+        if (resume) {
+            sendMessage(obtainMessage(MSG_TICK));
+        } else {
+            sendMessageDelayed(obtainMessage(MSG_TICK), mTickInterval);
+        }
+    }
+
+    public void stopTicking() {
+        removeMessages(MSG_TICK);
+    }
+
+    /**
+     * Forces a single call to {@link OnTickListener#onTick() onTick()}
+     * without scheduling looped messages on this handler.
+     */
+    public void forceTick() {
+        sendMessage(obtainMessage(MSG_FORCE_TICK));
+    }
+}

app/src/main/java/com/philliphsu/clock2/alarms/AlarmCountdown.java

@@ -0,0 +1,53 @@
+package com.philliphsu.clock2.alarms;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.util.AttributeSet;
+import android.widget.TextView;
+
+import com.philliphsu.clock2.DurationDisplayer;
+import com.philliphsu.clock2.TickHandler;
+import com.philliphsu.clock2.util.DurationUtils;
+
+/**
+ * Created by Phillip Hsu on 4/30/2016.
+ */
+public class AlarmCountdown extends TextView implements DurationDisplayer {
+    private static final String TAG = "NextAlarmText";
+    private static final int TICK_INTERVAL = 60000; // per minute
+
+    private TickHandler mHandler;
+
+    public AlarmCountdown(Context context) {
+        super(context);
+    }
+
+    public AlarmCountdown(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public void setOnTickListener(@NonNull OnTickListener listener) {
+        mHandler = new TickHandler(listener, TICK_INTERVAL);
+    }
+
+    @Override
+    public void showAsText(long duration) {
+        setText(DurationUtils.toString(getContext(), duration, true));
+    }
+
+    @Override
+    public void startTicking(boolean resume) {
+        mHandler.startTicking(resume);
+    }
+
+    @Override
+    public void stopTicking() {
+        mHandler.stopTicking();
+    }
+
+    @Override
+    public void forceTick() {
+        mHandler.forceTick();
+    }
+}

app/src/main/java/com/philliphsu/clock2/alarms/AlarmViewHolder.java

@@ -31,18 +31,19 @@ import static com.philliphsu.clock2.util.DateFormatUtils.formatTime;
 /**
  * Created by Phillip Hsu on 5/31/2016.
  */
-public class AlarmViewHolder extends BaseViewHolder<Alarm> {
+public class AlarmViewHolder extends BaseViewHolder<Alarm> implements AlarmCountdown.OnTickListener {
     private static final RelativeSizeSpan AMPM_SIZE_SPAN = new RelativeSizeSpan(0.5f);
 
     @Bind(R.id.time) TextView mTime;
     @Bind(R.id.on_off_switch) SwitchCompat mSwitch;
     @Bind(R.id.label) TextView mLabel;
-    @Bind(R.id.countdown) TextView mCountdown; // TODO: Change type to NextAlarmText, once you move that class to this project
+    @Bind(R.id.countdown) AlarmCountdown mCountdown;
     @Bind(R.id.recurring_days) TextView mDays;
     @Bind(R.id.dismiss) Button mDismissButton;
 
     public AlarmViewHolder(ViewGroup parent, OnListItemInteractionListener<Alarm> listener) {
         super(parent, R.layout.item_alarm, listener);
+        mCountdown.setOnTickListener(this);
     }
 
     @Override
@@ -88,9 +89,14 @@ public class AlarmViewHolder extends BaseViewHolder<Alarm> {
         bindDays(num > 0, text);
     }
 
+    @Override
+    public void onTick() {
+        mCountdown.showAsText(getAlarm().ringsIn());
+    }
+
     @OnClick(R.id.dismiss)
     void onClick() {
-        AlarmUtils.cancelAlarm(getContext(), getItem());
+        AlarmUtils.cancelAlarm(getContext(), getAlarm());
         bindDismissButton(false, ""); // Will be set to correct text the next time we bind.
         // TODO: Check if alarm has no recurrence, then turn it off.
     }
@@ -113,11 +119,11 @@ public class AlarmViewHolder extends BaseViewHolder<Alarm> {
 
     private void bindCountdown(boolean enabled, long remainingTime) {
         if (enabled) {
-            //TODO:mCountdown.showAsText(remainingTime);
+            mCountdown.showAsText(remainingTime);
-            //TODO:mCountdown.getTickHandler().startTicking(true)
+            mCountdown.startTicking(true);
             mCountdown.setVisibility(VISIBLE);
         } else {
-            //TODO:mCountdown.getTickHandler().stopTicking();
+            mCountdown.stopTicking();
             mCountdown.setVisibility(GONE);
         }
     }
@@ -140,4 +146,8 @@ public class AlarmViewHolder extends BaseViewHolder<Alarm> {
     private void setVisibility(@NonNull View view, boolean visible) {
         view.setVisibility(visible ? VISIBLE : GONE);
     }
+
+    private Alarm getAlarm() {
+        return getItem();
+    }
 }

app/src/main/java/com/philliphsu/clock2/util/DurationUtils.java

@@ -12,6 +12,10 @@ import java.util.concurrent.TimeUnit;
  * Created by Phillip Hsu on 6/6/2016.
  */
 public class DurationUtils {
+    public static final int HOURS = 0;
+    public static final int MINUTES = 1;
+    public static final int SECONDS = 2;
+    public static final int MILLIS = 3;
 
     /** Return a string representing the duration, formatted in hours and minutes.
      * TODO: Need to adapt this to represent all time fields eventually */

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

@@ -42,7 +42,7 @@
         android:layout_below="@id/time_layout"
         android:layout_marginBottom="@dimen/item_margin_between_elements"/>
 
-    <TextView
+    <com.philliphsu.clock2.alarms.AlarmCountdown
         android:id="@+id/countdown"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"