From 6cc5f2bf1d3a345fa86611ca7d104e84dfc90c8a Mon Sep 17 00:00:00 2001
From: Mohammed Header <mohheader@hotmail.com>
Date: Sun, 7 Jun 2015 11:50:44 +0200
Subject: [PATCH 1/2] Add Support for RTL

---
 .../me/gujun/android/taggroup/TagGroup.java   | 38 ++++++++++++++-----
 1 file changed, 28 insertions(+), 10 deletions(-)

diff --git a/library/src/main/java/me/gujun/android/taggroup/TagGroup.java b/library/src/main/java/me/gujun/android/taggroup/TagGroup.java
index 5f2ae99..3ff6c29 100644
--- a/library/src/main/java/me/gujun/android/taggroup/TagGroup.java
+++ b/library/src/main/java/me/gujun/android/taggroup/TagGroup.java
@@ -134,6 +134,9 @@ public class TagGroup extends ViewGroup {
     /** Listener used to handle tag click event. */
     private InternalTagClickListener mInternalTagClickListener = new InternalTagClickListener();
 
+    /** If RTL is forced, default is false */
+    private boolean isRTL;
+
     public TagGroup(Context context) {
         this(context, null);
     }
@@ -173,6 +176,7 @@ public TagGroup(Context context, AttributeSet attrs, int defStyleAttr) {
             verticalSpacing = (int) a.getDimension(R.styleable.TagGroup_atg_verticalSpacing, default_vertical_spacing);
             horizontalPadding = (int) a.getDimension(R.styleable.TagGroup_atg_horizontalPadding, default_horizontal_padding);
             verticalPadding = (int) a.getDimension(R.styleable.TagGroup_atg_verticalPadding, default_vertical_padding);
+            isRTL = false;
         } finally {
             a.recycle();
         }
@@ -267,6 +271,7 @@ protected void onLayout(boolean changed, int l, int t, int r, int b) {
         final int parentBottom = b - t - getPaddingBottom();
 
         int childLeft = parentLeft;
+        int childRight = parentRight;
         int childTop = parentTop;
 
         int rowMaxHeight = 0;
@@ -278,16 +283,29 @@ protected void onLayout(boolean changed, int l, int t, int r, int b) {
             final int height = child.getMeasuredHeight();
 
             if (child.getVisibility() != GONE) {
-                if (childLeft + width > parentRight) { // Next line
-                    childLeft = parentLeft;
-                    childTop += rowMaxHeight + verticalSpacing;
-                    rowMaxHeight = height;
-                } else {
-                    rowMaxHeight = Math.max(rowMaxHeight, height);
+                if(isRTL){
+                    if (childRight - width < parentLeft) { // Next line
+                        childRight = parentRight;
+                        childTop += rowMaxHeight + verticalSpacing;
+                        rowMaxHeight = height;
+                    } else {
+                        rowMaxHeight = Math.max(rowMaxHeight, height);
+                    }
+                    child.layout(childRight - width, childTop, childRight, childTop + height);
+    
+                    childRight -= width + horizontalSpacing;   
+                }else{
+                    if (childLeft + width > parentRight) { // Next line
+                        childLeft = parentLeft;
+                        childTop += rowMaxHeight + verticalSpacing;
+                        rowMaxHeight = height;
+                    } else {
+                        rowMaxHeight = Math.max(rowMaxHeight, height);
+                    }
+                    child.layout(childLeft, childTop, childLeft + width, childTop + height);
+    
+                    childLeft += width + horizontalSpacing;
                 }
-                child.layout(childLeft, childTop, childLeft + width, childTop + height);
-
-                childLeft += width + horizontalSpacing;
             }
         }
     }
@@ -1022,4 +1040,4 @@ public boolean deleteSurroundingText(int beforeLength, int afterLength) {
             }
         }
     }
-}
\ No newline at end of file
+}

From 24cd69ac265709808a2634db104020907df98cdd Mon Sep 17 00:00:00 2001
From: Mohammed Header <mohheader@hotmail.com>
Date: Sun, 7 Jun 2015 11:53:08 +0200
Subject: [PATCH 2/2] add public method

---
 .../src/main/java/me/gujun/android/taggroup/TagGroup.java  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/library/src/main/java/me/gujun/android/taggroup/TagGroup.java b/library/src/main/java/me/gujun/android/taggroup/TagGroup.java
index 3ff6c29..9f82552 100644
--- a/library/src/main/java/me/gujun/android/taggroup/TagGroup.java
+++ b/library/src/main/java/me/gujun/android/taggroup/TagGroup.java
@@ -209,6 +209,13 @@ public void submitTag() {
             appendInputTag();
         }
     }
+    
+    /**
+     * Call this to force RTL.
+     */
+    public void setRTL(boolean _rtl){
+        this.isRTL = _rtl;
+    }
 
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {