update

app/src/main/java/com/miya/fastcashier/widget/Divider.java

-package com.miya.fastcashier.widget;
-
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.view.View;
-
-import androidx.recyclerview.widget.RecyclerView;
-
-/**
- * 通用的RecyclerDivider
- */
-public class Divider extends RecyclerView.ItemDecoration {
-    private Paint paint;
-    private int divideWidth;
-
-    public Divider(int divideWidth, int color) {
-        super();
-        this.paint = new Paint();
-        paint.setAntiAlias(true);
-        paint.setColor(color);
-        this.divideWidth = divideWidth;
-    }
-
-    @Override
-    public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
-        int left = parent.getPaddingStart();
-        int right = parent.getMeasuredWidth() - parent.getPaddingEnd();
-        View child;
-        int childPosition;
-        int validChildCount = parent.getChildCount();
-        for (int i = 0; i < validChildCount; i++) {
-            child = parent.getChildAt(i);
-            childPosition = parent.getChildAdapterPosition(child);
-            if (childPosition == validChildCount - 1) {
-                break;
-            }
-            RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
-            int top = child.getBottom() + layoutParams.bottomMargin;
-            int bottom = top + divideWidth;
-            c.drawRect(left, top, right, bottom, paint);
-        }
-    }
-}
\ No newline at end of file

app/src/main/java/com/miya/fastcashier/widget/Divider.kt

+package com.miya.fastcashier.widget
+
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.view.View
+import androidx.recyclerview.widget.RecyclerView.ItemDecoration
+import androidx.recyclerview.widget.RecyclerView
+
+/**
+ * 通用的RecyclerDivider
+ */
+class Divider(divideWidth: Int, color: Int) : ItemDecoration() {
+    private val paint: Paint
+    private val divideWidth: Int
+    override fun onDraw(c: Canvas, parent: RecyclerView, state: RecyclerView.State) {
+        val left = parent.paddingStart
+        val right = parent.measuredWidth - parent.paddingEnd
+        var child: View
+        var childPosition: Int
+        val validChildCount = parent.childCount
+        for (i in 0 until validChildCount) {
+            child = parent.getChildAt(i)
+            childPosition = parent.getChildAdapterPosition(child)
+            if (childPosition == validChildCount - 1) {
+                break
+            }
+            val layoutParams = child.layoutParams as RecyclerView.LayoutParams
+            val top = child.bottom + layoutParams.bottomMargin
+            val bottom = top + divideWidth
+            c.drawRect(left.toFloat(), top.toFloat(), right.toFloat(), bottom.toFloat(), paint)
+        }
+    }
+
+    init {
+        paint = Paint()
+        paint.isAntiAlias = true
+        paint.color = color
+        this.divideWidth = divideWidth
+    }
+}
\ No newline at end of file