Added JavaDoc to the interface

dachshundtablayout/src/main/java/com/kekstudio/dachshundtablayout/indicators/AnimatedIndicatorInterface.java

@@ -4,24 +4,75 @@
 import android.support.annotation.ColorInt;
 
 /**
+ * The interface you should implement for creating custom AnimatedIndicators.
+ *
  * Created by Andy671
  */
 
 public interface AnimatedIndicatorInterface {
 
+    /**
+     * Default duration of the animation. Pass it to getDuration().
+     */
     long DEFAULT_DURATION = 500;
 
+    /**
+     * *Can be called from DachshundTabLayout. Sets color of the indicator.
+     *
+     * @param color - color of the tab indicator.
+     */
     void setSelectedTabIndicatorColor(@ColorInt int color);
 
+
+    /**
+     * *Can be called from DachshundTabLayout. Sets height of the indicator.
+     *
+     * @param height - height of the tab indicator.
+     */
     void setSelectedTabIndicatorHeight(int height);
 
+    /**
+     * Updates values when swiping of the ViewPager starts.
+     *
+     * @param startXLeft X-coordinate of the current tab left edge
+     *
+     * @param endXLeft  X-coordinate edge of the finish destination tab left edge
+     *
+     * @param startXCenter X-coordinate of the current tab center
+     *
+     * @param endXCenter X-coordinate of the finish destination tab center
+     *
+     * @param startXRight X-coordinate of the current tab right edge
+     *
+     * @param endXRight X-coordinate edge of the finish destination tab right edge
+     *
+     */
     void setIntValues(int startXLeft, int endXLeft,
                       int startXCenter, int endXCenter,
                       int startXRight, int endXRight);
 
+    /**
+     * Updates currentPlayTime when swiping of the ViewPager occurs.
+     * (e.g. if we are on half of the way // currentPlayTime == getDuration() / 2 )
+     *
+     * You can use it in your animators (don't forget to Override getDuration() method)
+     *
+     * @param currentPlayTime swiping position in playTime.
+     */
     void setCurrentPlayTime(long currentPlayTime);
 
+    /**
+     * Make your drawing calls here.
+     * Call invalidate() when you need to redraw.
+     *
+     * @param canvas DachshundTabLayout canvas.
+     */
     void draw(Canvas canvas);
 
+    /**
+     * Override it, if you want to work with animators, to make setCurrentPlayTime method work.
+     *
+     * @return the duration of your animator. Currently supporting only DEFAULT_DURATION.
+     */
     long getDuration();
 }