epool · March 2, 2020 05:45 · Jul 14, 2015 · Jul 14, 2015
diff --git a/SpanningGridLayoutManager.java b/SpanningGridLayoutManager.java
@@ -7,6 +7,7 @@
 import android.view.ViewGroup;
 
 public class SpanningGridLayoutManager extends GridLayoutManager {
+
     public SpanningGridLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
         super(context, attrs, defStyleAttr, defStyleRes);
     }

diff --git a/SpanningGridLayoutManager.java b/SpanningGridLayoutManager.java
@@ -0,0 +1,68 @@
+package com.example;
+
+import android.content.Context;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.AttributeSet;
+import android.view.ViewGroup;
+
+public class SpanningGridLayoutManager extends GridLayoutManager {
+    public SpanningGridLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    public SpanningGridLayoutManager(Context context, int spanCount) {
+        super(context, spanCount);
+    }
+
+    public SpanningGridLayoutManager(Context context, int spanCount, int orientation, boolean reverseLayout) {
+        super(context, spanCount, orientation, reverseLayout);
+    }
+
+    @Override
+    public RecyclerView.LayoutParams generateDefaultLayoutParams() {
+        return spanLayoutSize(super.generateDefaultLayoutParams());
+    }
+
+    @Override
+    public RecyclerView.LayoutParams generateLayoutParams(Context c, AttributeSet attrs) {
+        return spanLayoutSize(super.generateLayoutParams(c, attrs));
+    }
+
+    @Override
+    public RecyclerView.LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) {
+        return spanLayoutSize(super.generateLayoutParams(lp));
+    }
+
+    @Override
+    public boolean checkLayoutParams(RecyclerView.LayoutParams lp) {
+        return super.checkLayoutParams(lp);
+    }
+
+    private RecyclerView.LayoutParams spanLayoutSize(RecyclerView.LayoutParams layoutParams){
+        if(getOrientation() == HORIZONTAL){
+            layoutParams.width = (int) Math.round(getHorizontalSpace() / Math.ceil(getItemCount() / getSpanCount()));
+        }
+        else if(getOrientation() == VERTICAL){
+            layoutParams.height = (int) Math.round(getVerticalSpace() / Math.ceil(getItemCount() / getSpanCount()));
+        }
+        return layoutParams;
+    }
+
+    @Override
+    public boolean canScrollVertically() {
+        return false;
+    }
+    @Override
+    public boolean canScrollHorizontally() {
+        return false;
+    }
+
+    private int getHorizontalSpace() {
+        return getWidth() - getPaddingRight() - getPaddingLeft();
+    }
+
+    private int getVerticalSpace() {
+        return getHeight() - getPaddingBottom() - getPaddingTop();
+    }
+}