Feature/support top right + bottom right bubble directions

bl/src/main/java/com/daasuu/bl/ArrowDirection.java

@@ -8,11 +8,14 @@ public enum ArrowDirection {
     RIGHT(1),
     TOP(2),
     BOTTOM(3),
-    //CENTER
+    // CENTER
     LEFT_CENTER(4),
     RIGHT_CENTER(5),
     TOP_CENTER(6),
-    BOTTOM_CENTER(7);
+    BOTTOM_CENTER(7),
+    // HORIZONTAL > RIGHT
+    TOP_RIGHT(8),
+    BOTTOM_RIGHT(9);
 
 
     private int value;

bl/src/main/java/com/daasuu/bl/Bubble.java

@@ -104,6 +104,7 @@ private void initPath(ArrowDirection arrowDirection, Path path, float strokeWidt
                 break;
             case TOP:
             case TOP_CENTER:
+            case TOP_RIGHT:
                 if (mCornersRadius <= 0) {
                     initTopSquarePath(mRect, path, strokeWidth);
                     break;
@@ -134,6 +135,7 @@ private void initPath(ArrowDirection arrowDirection, Path path, float strokeWidt
                 break;
             case BOTTOM:
             case BOTTOM_CENTER:
+            case BOTTOM_RIGHT:
                 if (mCornersRadius <= 0) {
                     initBottomSquarePath(mRect, path, strokeWidth);
                     break;
@@ -335,4 +337,4 @@ private void initBottomSquarePath(RectF rect, Path path, float strokeWidth) {
         path.close();
     }
 
-}
+}

bl/src/main/java/com/daasuu/bl/BubbleLayout.java

@@ -76,18 +76,23 @@ private void initDrawable(int left, int right, int top, int bottom) {
         if (right < left || bottom < top) return;
 
         RectF rectF = new RectF(left, top, right, bottom);
+        float arrowPosition = mArrowPosition;
         switch (mArrowDirection) {
             case LEFT_CENTER:
             case RIGHT_CENTER:
-                mArrowPosition = (bottom - top) / 2 - mArrowHeight / 2;
+                arrowPosition = (bottom - top) / 2f - mArrowHeight / 2;
                 break;
             case TOP_CENTER:
             case BOTTOM_CENTER:
-                mArrowPosition = (right - left) / 2 - mArrowWidth / 2;
+                arrowPosition = (right - left) / 2f - mArrowWidth / 2;
+                break;
+            case TOP_RIGHT:
+            case BOTTOM_RIGHT:
+                arrowPosition = right - mArrowPosition - mArrowWidth / 2;
             default:
                 break;
         }
-        mBubble = new Bubble(rectF, mArrowWidth, mCornersRadius, mArrowHeight, mArrowPosition,
+        mBubble = new Bubble(rectF, mArrowWidth, mCornersRadius, mArrowHeight, arrowPosition,
                 mStrokeWidth, mStrokeColor, mBubbleColor, mArrowDirection);
     }
 
@@ -107,10 +112,12 @@ private void initPadding() {
                 break;
             case TOP:
             case TOP_CENTER:
+            case TOP_RIGHT:
                 paddingTop += mArrowHeight;
                 break;
             case BOTTOM:
             case BOTTOM_CENTER:
+            case BOTTOM_RIGHT:
                 paddingBottom += mArrowHeight;
                 break;
         }
@@ -139,10 +146,12 @@ private void resetPadding() {
                 break;
             case TOP:
             case TOP_CENTER:
+            case TOP_RIGHT:
                 paddingTop -= mArrowHeight;
                 break;
             case BOTTOM:
             case BOTTOM_CENTER:
+            case BOTTOM_RIGHT:
                 paddingBottom -= mArrowHeight;
                 break;
         }

bl/src/main/res/values/attrs.xml

@@ -18,6 +18,8 @@
             <enum name="right_center" value="5"/>
             <enum name="top_center" value="6"/>
             <enum name="bottom_center" value="7"/>
+            <enum name="top_right" value="8"/>
+            <enum name="bottom_right" value="9"/>
         </attr>
     </declare-styleable>
-</resources>
+</resources>

sample/src/main/java/com/daasuu/bubblelayout/MainActivity.java

@@ -1,22 +1,30 @@
 package com.daasuu.bubblelayout;
 
 import android.os.Bundle;
+
 import androidx.appcompat.app.AppCompatActivity;
-import android.view.Gravity;
+
 import android.view.LayoutInflater;
 import android.view.View;
-import android.widget.Button;
-import android.widget.PopupWindow;
+import android.widget.*;
 
 import com.daasuu.bl.ArrowDirection;
 import com.daasuu.bl.BubbleLayout;
 import com.daasuu.bl.BubblePopupHelper;
 
 import java.util.Random;
 
+import static com.daasuu.bl.ArrowDirection.*;
+
 public class MainActivity extends AppCompatActivity {
 
     private PopupWindow popupWindow;
+    private ArrowDirection[] randomArrowDirections = {
+        TOP,
+        BOTTOM,
+        TOP_RIGHT,
+        BOTTOM_RIGHT
+    };
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -26,20 +34,29 @@ protected void onCreate(Bundle savedInstanceState) {
         Button button = (Button) findViewById(R.id.btn_popup);
 
         final BubbleLayout bubbleLayout = (BubbleLayout) LayoutInflater.from(this).inflate(R.layout.layout_sample_popup, null);
+        bubbleLayout.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
+        final int bubbleWidth = bubbleLayout.getMeasuredWidth();
+
         popupWindow = BubblePopupHelper.create(this, bubbleLayout);
         final Random random = new Random();
 
         button.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                int[] location = new int[2];
-                v.getLocationInWindow(location);
-                if (random.nextBoolean()) {
-                    bubbleLayout.setArrowDirection(ArrowDirection.TOP);
-                } else {
-                    bubbleLayout.setArrowDirection(ArrowDirection.BOTTOM);
+                int xoff = 0;
+                int yoff = 0;
+                ArrowDirection direction = randomArrowDirections[random.nextInt(randomArrowDirections.length)];
+                switch (direction) {
+                    case TOP_RIGHT:
+                    case BOTTOM_RIGHT:
+                        xoff = v.getWidth() - bubbleWidth;
+                        break;
+                    case TOP:
+                    case BOTTOM:
                 }
-                popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0], v.getHeight() + location[1]);
+                bubbleLayout.setArrowDirection(direction);
+                bubbleLayout.setArrowPosition(v.getWidth() / 2f);
+                popupWindow.showAsDropDown(v, xoff, yoff);
             }
         });
 

sample/src/main/res/layout/activity_main.xml

@@ -200,6 +200,7 @@
         android:id="@+id/btn_popup"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
         android:layout_marginTop="32dp"
         android:text="Bubble Popup" />