From b1b31b495ffb18e261b96840f999f6278b5beb7b Mon Sep 17 00:00:00 2001
From: isaced <isaced@163.com>
Date: Tue, 16 Jun 2015 17:02:36 +0800
Subject: [PATCH] Add a simple pop animation

---
 Example/ISEmojiViewSample/ViewController.m |  1 +
 ISEmojiView/ISEmojiView.h                  | 12 +++++++
 ISEmojiView/ISEmojiView.m                  | 37 +++++++++++++++++++---
 3 files changed, 45 insertions(+), 5 deletions(-)

diff --git a/Example/ISEmojiViewSample/ViewController.m b/Example/ISEmojiViewSample/ViewController.m
index 76bb119..631d1b9 100644
--- a/Example/ISEmojiViewSample/ViewController.m
+++ b/Example/ISEmojiViewSample/ViewController.m
@@ -27,6 +27,7 @@
     // init ISEmojiView
     ISEmojiView *emojiView = [[ISEmojiView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 216)];
     emojiView.delegate = self;
+    emojiView.inputView = self.textView;
     self.textView.inputView = emojiView;
     
     [self.textView becomeFirstResponder];
diff --git a/ISEmojiView/ISEmojiView.h b/ISEmojiView/ISEmojiView.h
index 0efae4e..f7c67cd 100644
--- a/ISEmojiView/ISEmojiView.h
+++ b/ISEmojiView/ISEmojiView.h
@@ -30,6 +30,18 @@
  */
 @property (nonatomic, strong) UIPageControl *pageControl;
 
+/**
+ *  the input view
+ */
+@property (nonatomic, strong) UIView *inputView;
+
+/**
+ *  Are animation allowed (default:YES)
+ *
+ *  require set inputView (eg:TextField,TextView)
+ */
+@property (nonatomic, assign) BOOL popAnimationEnable;
+
 @end
 
 /**
diff --git a/ISEmojiView/ISEmojiView.m b/ISEmojiView/ISEmojiView.m
index 450a9f9..004f115 100644
--- a/ISEmojiView/ISEmojiView.m
+++ b/ISEmojiView/ISEmojiView.m
@@ -110,7 +110,8 @@ static const CGFloat EmojiFontSize = 32;
         [self.pageControl addTarget:self action:@selector(pageControlTouched:) forControlEvents:UIControlEventValueChanged];
         [self addSubview:self.pageControl];
         
-
+        // default allow animation
+        self.popAnimationEnable = YES;
     }
     return self;
 }
@@ -138,10 +139,36 @@ static const CGFloat EmojiFontSize = 32;
     animation.duration = 0.1;
     animation.autoreverses = YES;
     [button.layer addAnimation:animation forKey:nil];
-    
-    // Callback
-    if ([self.delegate respondsToSelector:@selector(emojiView:didSelectEmoji:)]) {
-        [self.delegate emojiView:self didSelectEmoji:button.titleLabel.text];
+
+    if (self.popAnimationEnable) {
+        // Animation emojibutton
+        UIButton *animationEmojiButton = [UIButton buttonWithType:UIButtonTypeCustom];;
+        [animationEmojiButton setTitle: [button titleForState:UIControlStateNormal] forState:UIControlStateNormal];
+        animationEmojiButton.titleLabel.font = [UIFont fontWithName:@"Apple color emoji" size:EmojiFontSize];\
+        
+        // Conver frame from scrollview to self and add to self
+        animationEmojiButton.frame = [button.superview convertRect:button.frame toView:self];
+        [self addSubview:animationEmojiButton];
+        
+        // get animation traget position from input view
+        CGPoint newPoint = [self.inputView convertPoint:self.inputView.center toView:self];
+        [UIView animateWithDuration:0.3 animations:^{
+            animationEmojiButton.center = newPoint;
+            animationEmojiButton.alpha = 0;
+        } completion:^(BOOL finished) {
+            if (finished) {
+                // Callback
+                if ([self.delegate respondsToSelector:@selector(emojiView:didSelectEmoji:)]) {
+                    [self.delegate emojiView:self didSelectEmoji:button.titleLabel.text];
+                }
+                [animationEmojiButton removeFromSuperview];
+            }
+        }];
+    }else{
+        // Callback
+        if ([self.delegate respondsToSelector:@selector(emojiView:didSelectEmoji:)]) {
+            [self.delegate emojiView:self didSelectEmoji:button.titleLabel.text];
+        }
     }
 }