diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/support/HandlerTimer.java b/tangram/src/main/java/com/tmall/wireless/tangram/support/HandlerTimer.java
index ebdafa4..55787b5 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/support/HandlerTimer.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/support/HandlerTimer.java
@@ -71,6 +71,7 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * start timer immediately
      */
+    @Override
     public void start() {
         start(false);
     }
@@ -78,6 +79,7 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * @param bySecond true, start timer with interval alignment; false, start timer immediately
      */
+    @Override
     public void start(boolean bySecond) {
         if (this.mStatus != TimerStatus.Running) {
             this.mStartTS = bySecond ? 0 : System.currentTimeMillis();
@@ -92,6 +94,7 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * pause timer
      */
+    @Override
     public void pause() {
         this.mStatus = TimerStatus.Paused;
         mHandler.removeCallbacks(this);
@@ -100,6 +103,7 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * resume timer
      */
+    @Override
     public void restart() {
         mHandler.removeCallbacks(this);
         this.mStatus = TimerStatus.Running;
@@ -109,6 +113,7 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * stop timer
      */
+    @Override
     public void stop() {
         mStatus = TimerStatus.Stopped;
         mHandler.removeCallbacks(this);
@@ -117,6 +122,7 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * cancel timer
      */
+    @Override
     public void cancel() {
         mStatus = TimerStatus.Stopped;
         mHandler.removeCallbacks(this);
@@ -125,9 +131,44 @@ public class HandlerTimer implements Runnable, ITimer {
     /**
      * @return current status
      */
+    @Override
     public TimerStatus getStatus() {
         return mStatus;
     }
 
+    /**
+     * Timer status
+     */
+    public enum TimerStatus {
+
+        Waiting(0, "Wating"),
+        Running(1, "Running"),
+        Paused(-1, "Paused"),
+        Stopped(-2, "Stopped");
+
+        private int code;
+        private String desc;
+
+        private TimerStatus(int code, String desc) {
+            this.code = code;
+            this.desc = desc;
+        }
+
+        public int getCode() {
+            return code;
+        }
+
+        public void setCode(int code) {
+            this.code = code;
+        }
+
+        public String getDesc() {
+            return desc;
+        }
+
+        public void setDesc(String desc) {
+            this.desc = desc;
+        }
+    }
 
 }
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/support/ITimer.java b/tangram/src/main/java/com/tmall/wireless/tangram/support/ITimer.java
index 070f630..43df4b4 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/support/ITimer.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/support/ITimer.java
@@ -24,6 +24,8 @@
 
 package com.tmall.wireless.tangram.support;
 
+import com.tmall.wireless.tangram.support.HandlerTimer.TimerStatus;
+
 /**
  * Created by villadora on 15/8/31.
  */
@@ -64,39 +66,4 @@ public interface ITimer {
      */
     TimerStatus getStatus();
 
-    /**
-     * Timer status
-     */
-    enum TimerStatus {
-
-        Waiting(0, "Wating"),
-        Running(1, "Running"),
-        Paused(-1, "Paused"),
-        Stopped(-2, "Stopped");
-
-        private int code;
-        private String desc;
-
-        private TimerStatus(int code, String desc) {
-            this.code = code;
-            this.desc = desc;
-        }
-
-        public int getCode() {
-            return code;
-        }
-
-        public void setCode(int code) {
-            this.code = code;
-        }
-
-        public String getDesc() {
-            return desc;
-        }
-
-        public void setDesc(String desc) {
-            this.desc = desc;
-        }
-    }
-
 }
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/support/RxTimer.java b/tangram/src/main/java/com/tmall/wireless/tangram/support/RxTimer.java
index 3137990..3d57c36 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/support/RxTimer.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/support/RxTimer.java
@@ -29,6 +29,7 @@ import java.util.concurrent.TimeUnit;
 import android.support.annotation.NonNull;
 import android.support.v4.util.ArrayMap;
 import android.util.Log;
+import com.tmall.wireless.tangram.support.HandlerTimer.TimerStatus;
 import com.tmall.wireless.tangram.support.TimerSupport.OnTickListener;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/support/TimerSupport.java b/tangram/src/main/java/com/tmall/wireless/tangram/support/TimerSupport.java
index d707f9e..6c131e4 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/support/TimerSupport.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/support/TimerSupport.java
@@ -25,6 +25,7 @@
 package com.tmall.wireless.tangram.support;
 
 import android.support.annotation.NonNull;
+import com.tmall.wireless.tangram.support.HandlerTimer.TimerStatus;
 import io.reactivex.Observable;
 
 import java.util.concurrent.TimeUnit;
@@ -64,7 +65,7 @@ public class TimerSupport {
     /**
      * @return current timer status
      */
-    public HandlerTimer.TimerStatus getStatus() {
+    public TimerStatus getStatus() {
         return mDefaultTimer.getStatus();
     }