From 5918a9b89e2d4489de254140f795a7cee2e79eab Mon Sep 17 00:00:00 2001
From: Luis G Valle <luis.gvalle@gmail.com>
Date: Wed, 23 Sep 2015 17:41:24 +0100
Subject: [PATCH] Add reveal animation for API > 21

---
 .../MaterialSearchView.java                   | 49 ++++++++++++-------
 .../utils/AnimationUtil.java                  | 41 ++++++++++++++++
 2 files changed, 72 insertions(+), 18 deletions(-)

diff --git a/library/src/main/java/com/miguelcatalan/materialsearchview/MaterialSearchView.java b/library/src/main/java/com/miguelcatalan/materialsearchview/MaterialSearchView.java
index 68d9383..c87f513 100644
--- a/library/src/main/java/com/miguelcatalan/materialsearchview/MaterialSearchView.java
+++ b/library/src/main/java/com/miguelcatalan/materialsearchview/MaterialSearchView.java
@@ -483,25 +483,8 @@ public void showSearch(boolean animate) {
         mSearchSrcTextView.requestFocus();
 
         if (animate) {
-            AnimationUtil.fadeInView(mSearchLayout, AnimationUtil.ANIMATION_DURATION_MEDIUM, new AnimationUtil.AnimationListener() {
-                @Override
-                public boolean onAnimationStart(View view) {
-                    return false;
-                }
-
-                @Override
-                public boolean onAnimationEnd(View view) {
-                    if (mSearchViewListener != null) {
-                        mSearchViewListener.onSearchViewShown();
-                    }
-                    return false;
-                }
+            setVisibleWithAnimation();
 
-                @Override
-                public boolean onAnimationCancel(View view) {
-                    return false;
-                }
-            });
         } else {
             mSearchLayout.setVisibility(VISIBLE);
             if (mSearchViewListener != null) {
@@ -511,6 +494,36 @@ public boolean onAnimationCancel(View view) {
         mIsSearchOpen = true;
     }
 
+    private void setVisibleWithAnimation() {
+        AnimationUtil.AnimationListener animationListener = new AnimationUtil.AnimationListener() {
+            @Override
+            public boolean onAnimationStart(View view) {
+                return false;
+            }
+
+            @Override
+            public boolean onAnimationEnd(View view) {
+                if (mSearchViewListener != null) {
+                    mSearchViewListener.onSearchViewShown();
+                }
+                return false;
+            }
+
+            @Override
+            public boolean onAnimationCancel(View view) {
+                return false;
+            }
+        };
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            mSearchLayout.setVisibility(View.VISIBLE);
+            AnimationUtil.reveal(mSearchTopBar, AnimationUtil.ANIMATION_DURATION_MEDIUM, animationListener);
+
+        } else {
+            AnimationUtil.fadeInView(mSearchLayout, AnimationUtil.ANIMATION_DURATION_MEDIUM, animationListener);
+        }
+    }
+
     /**
      * Close search view.
      */
diff --git a/library/src/main/java/com/miguelcatalan/materialsearchview/utils/AnimationUtil.java b/library/src/main/java/com/miguelcatalan/materialsearchview/utils/AnimationUtil.java
index d07f0ad..16e8807 100644
--- a/library/src/main/java/com/miguelcatalan/materialsearchview/utils/AnimationUtil.java
+++ b/library/src/main/java/com/miguelcatalan/materialsearchview/utils/AnimationUtil.java
@@ -1,8 +1,13 @@
 package com.miguelcatalan.materialsearchview.utils;
 
+import android.animation.Animator;
+import android.annotation.TargetApi;
+import android.os.Build;
 import android.support.v4.view.ViewCompat;
 import android.support.v4.view.ViewPropertyAnimatorListener;
 import android.view.View;
+import android.view.ViewAnimationUtils;
+import android.view.animation.DecelerateInterpolator;
 
 /**
  * @author Miguel Catalan Bañuls
@@ -75,6 +80,42 @@ public void onAnimationCancel(View view) {
         ViewCompat.animate(view).alpha(1f).setDuration(duration).setListener(vpListener);
     }
 
+    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
+    public static void reveal(final View view, int animationDuration, final AnimationListener listener) {
+        View viewRoot = view;
+        int cx = (viewRoot.getRight());
+        int cy = (viewRoot.getTop() + viewRoot.getBottom()) / 2;
+        int finalRadius = Math.max(viewRoot.getWidth(), viewRoot.getHeight());
+
+        Animator anim = ViewAnimationUtils.createCircularReveal(viewRoot, cx, cy, 0, finalRadius);
+        viewRoot.setVisibility(View.VISIBLE);
+
+        anim.setDuration(animationDuration);
+        anim.setInterpolator(new DecelerateInterpolator());
+        anim.addListener(new Animator.AnimatorListener() {
+            @Override
+            public void onAnimationStart(Animator animation) {
+                  listener.onAnimationStart(view);
+            }
+
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                listener.onAnimationEnd(view);
+            }
+
+            @Override
+            public void onAnimationCancel(Animator animation) {
+               listener.onAnimationCancel(view);
+            }
+
+            @Override
+            public void onAnimationRepeat(Animator animation) {
+
+            }
+        });
+        anim.start();
+    }
+
     public static void fadeOutView(View view) {
         fadeOutView(view, ANIMATION_DURATION_SHORT);
     }