added stroke

Author: myinnos

alphabetsindexfastscrollrecycler/src/main/java/in/myinnos/alphabetsindexfastscrollrecycler/IndexFastScrollRecyclerSection.java

@@ -44,6 +44,10 @@ public class IndexFastScrollRecyclerSection extends RecyclerView.AdapterDataObse
     private Typeface setTypeface = null;
     private Boolean setIndexBarVisibility = true;
     private Boolean setSetIndexBarHighLateTextVisibility = false;
+    private Boolean setIndexBarStrokeVisibility = true;
+    public int mIndexBarStrokeWidth = 2;
+    private @ColorInt
+    int mIndexBarStrokeColor;
     private @ColorInt
     int indexbarBackgroudColor;
     private @ColorInt
@@ -73,6 +77,9 @@ public IndexFastScrollRecyclerSection(Context context, IndexFastScrollRecyclerVi
         previewTextColor = recyclerView.mPreviewTextColor;
         previewBackgroudAlpha = convertTransparentValueToBackgroundAlpha(recyclerView.mPreviewTransparentValue);
 
+        mIndexBarStrokeColor = recyclerView.mSetIndexBarStrokeColor;
+        mIndexBarStrokeWidth = recyclerView.mIndexBarStrokeWidth;
+
         setIndexBarCornerRadius = recyclerView.mIndexBarCornerRadius;
         indexbarBackgroudColor = recyclerView.mIndexbarBackgroudColor;
         indexbarTextColor = recyclerView.mIndexbarTextColor;
@@ -95,11 +102,19 @@ public void draw(Canvas canvas) {
         if (setIndexBarVisibility) {
 
             Paint indexbarPaint = new Paint();
+
             indexbarPaint.setColor(indexbarBackgroudColor);
             indexbarPaint.setAlpha(indexbarBackgroudAlpha);
             indexbarPaint.setAntiAlias(true);
             canvas.drawRoundRect(mIndexbarRect, setIndexBarCornerRadius * mDensity, setIndexBarCornerRadius * mDensity, indexbarPaint);
 
+            if (setIndexBarStrokeVisibility) {
+                indexbarPaint.setStyle(Paint.Style.STROKE);
+                indexbarPaint.setColor(mIndexBarStrokeColor);
+                indexbarPaint.setStrokeWidth(mIndexBarStrokeWidth); // set stroke width
+                canvas.drawRoundRect(mIndexbarRect, setIndexBarCornerRadius * mDensity, setIndexBarCornerRadius * mDensity, indexbarPaint);
+            }
+
             if (mSections != null && mSections.length > 0) {
                 // Preview is shown when mCurrentSection is set
                 if (previewVisibility && mCurrentSection >= 0 && mSections[mCurrentSection] != "") {
@@ -334,13 +349,29 @@ public void setIndexBarVisibility(boolean shown) {
         setIndexBarVisibility = shown;
     }
 
+
+    /**
+     * @param shown boolean to show or hide the index bar
+     */
+    public void setIndexBarStrokeVisibility(boolean shown) {
+        setIndexBarStrokeVisibility = shown;
+    }
+
     /**
      * @param shown boolean to show or hide the preview box
      */
     public void setPreviewVisibility(boolean shown) {
         previewVisibility = shown;
     }
 
+    /**
+     * @param value int to set the text size of the preview box
+     */
+    public void setIndexBarStrokeWidth(int value) {
+        mIndexBarStrokeWidth = value;
+    }
+
+
     /**
      * @param value int to set the text size of the preview box
      */
@@ -383,6 +414,14 @@ public void setIndexBarTextColor(@ColorInt int color) {
         indexbarTextColor = color;
     }
 
+    /**
+     * @param color The text color for the index bar
+     */
+    public void setIndexBarStrokeColor(@ColorInt int color) {
+        mIndexBarStrokeColor = color;
+    }
+
+
     /**
      * @param color The text color for the index bar
      */

alphabetsindexfastscrollrecycler/src/main/java/in/myinnos/alphabetsindexfastscrollrecycler/IndexFastScrollRecyclerView.java

@@ -13,6 +13,7 @@
 import androidx.annotation.ColorInt;
 import androidx.annotation.ColorRes;
 import androidx.recyclerview.widget.RecyclerView;
+
 import android.util.AttributeSet;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
@@ -30,6 +31,9 @@ public class IndexFastScrollRecyclerView extends RecyclerView {
     public int mPreviewPadding = 5;
     public int mIndexBarCornerRadius = 5;
     public float mIndexBarTransparentValue = (float) 0.6;
+    public int mIndexBarStrokeWidth = 2;
+    public @ColorInt
+    int mSetIndexBarStrokeColor = Color.BLACK;
     public @ColorInt
     int mIndexbarBackgroudColor = Color.BLACK;
     public @ColorInt
@@ -108,7 +112,15 @@ private void init(Context context, AttributeSet attrs) {
                     if (typedArray.hasValue(R.styleable.IndexFastScrollRecyclerView_setPreviewTextColor)) {
                         mPreviewTextColor = Color.parseColor(typedArray.getString(R.styleable.IndexFastScrollRecyclerView_setPreviewTextColor));
                     }
-                    
+
+                    if (typedArray.hasValue(R.styleable.IndexFastScrollRecyclerView_setIndexBarStrokeWidth)) {
+                        mIndexBarStrokeWidth = typedArray.getInt(R.styleable.IndexFastScrollRecyclerView_setIndexBarStrokeWidth, mIndexBarStrokeWidth);
+                    }
+
+                    if (typedArray.hasValue(R.styleable.IndexFastScrollRecyclerView_setIndexBarStrokeColor)) {
+                        mSetIndexBarStrokeColor = Color.parseColor(typedArray.getString(R.styleable.IndexFastScrollRecyclerView_setIndexBarStrokeColor));
+                    }
+
                 } finally {
                     typedArray.recycle();
                 }
@@ -228,6 +240,28 @@ public void setIndexBarVisibility(boolean shown) {
         mEnabled = shown;
     }
 
+    /**
+     * @param shown boolean to show or hide the index bar
+     */
+    public void setIndexBarStrokeVisibility(boolean shown) {
+        mScroller.setIndexBarStrokeVisibility(shown);
+    }
+
+    /**
+     * @param color The color for the index bar
+     */
+    public void setIndexBarStrokeColor(String color) {
+        mScroller.setIndexBarStrokeColor(Color.parseColor(color));
+    }
+
+    /**
+     * @param value int to set the text size of the preview box
+     */
+    public void setIndexBarStrokeWidth(int value) {
+        mScroller.setIndexBarStrokeWidth(value);
+    }
+
+
     /**
      * @param shown boolean to show or hide the preview
      */

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

@@ -17,5 +17,7 @@
         <attr name="setIndexBarColorRes" format="color" />
         <attr name="setIndexBarTextColorRes" format="color" />
         <attr name="setIndexBarHighlightTextColorRes" format="color" />
+        <attr name="setIndexBarStrokeWidth" format="integer" />
+        <attr name="setIndexBarStrokeColor" format="color" />
     </declare-styleable>
 </resources>

app/src/main/java/in/myinnos/indexfastscrollrecycler/MainActivity.java

@@ -82,6 +82,11 @@ protected void initialiseUI() {
         mRecyclerView.setPreviewTransparentValue(0.6f);
 
         mRecyclerView.setIndexBarVisibility(true);
+
+        mRecyclerView.setIndexBarStrokeVisibility(true);
+        mRecyclerView.setIndexBarStrokeWidth(1);
+        mRecyclerView.setIndexBarStrokeColor("#000000");
+
         mRecyclerView.setIndexbarHighlightTextColor("#33334c");
         mRecyclerView.setIndexBarHighLateTextVisibility(true);