version:

update:优化item分割，更新gradle配置
bugfixes:

app/src/main/java/com/uiui/videoplayer/view/EquallyDividedItemDecoration.java

@@ -10,11 +10,10 @@ import androidx.recyclerview.widget.RecyclerView;
 public class EquallyDividedItemDecoration extends RecyclerView.ItemDecoration {
     private static final String TAG = EquallyDividedItemDecoration.class.getSimpleName();
 
-    private int mSpanCount;//横条目数量
-    private int mHalfRowSpacing;//行间距的一半
+    private int mSpanCount;// 横条目数量
+    private int mHalfRowSpacing;// 行间距的一半
     private int mHalfColumnSpacing;// 列间距的一半
 
-
     public EquallyDividedItemDecoration(int spanCount, int halfRowSpacing) {
         mSpanCount = spanCount;
         mHalfRowSpacing = halfRowSpacing;
@@ -28,12 +27,13 @@ public class EquallyDividedItemDecoration extends RecyclerView.ItemDecoration {
     }
 
     @Override
-    public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
+    public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent,
+            @NonNull RecyclerView.State state) {
         super.getItemOffsets(outRect, view, parent, state);
         int position = parent.getChildAdapterPosition(view); // 获取view 在adapter中的位置。
         Log.d(TAG, "getItemOffsets: position = " + position);
 
-        int itemCount = parent.getAdapter().getItemCount();//item全部数量
+        int itemCount = parent.getAdapter().getItemCount();// item全部数量
         Log.d(TAG, "getItemOffsets: itemCount = " + itemCount);
 
         int column = position % mSpanCount; // view 所在的列
@@ -50,9 +50,9 @@ public class EquallyDividedItemDecoration extends RecyclerView.ItemDecoration {
             outRect.right = mHalfRowSpacing;
         }
 
-        int row = (position / 3);//所在行
+        int row = (position / mSpanCount);// 所在行
         Log.d(TAG, "getItemOffsets: row = " + row);
-        int maxRow = (int) Math.ceil((double) itemCount / mSpanCount);//一共多少行
+        int maxRow = (int) Math.ceil((double) itemCount / mSpanCount);// 一共多少行
         Log.d(TAG, "getItemOffsets: maxRow = " + maxRow);
 
         if (row == 0) {

build.gradle

@@ -5,7 +5,11 @@ buildscript {
 
     repositories {
         google()
-        jcenter()
+        mavenCentral()
+        maven { url "https://jitpack.io" }
+        maven { url 'https://developer.huawei.com/repo/' }
+        maven { url 'https://maven.aliyun.com/repository/central/' }
+        maven { url 'https://maven.aliyun.com/repository/public/' }
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.6.3'
@@ -19,10 +23,11 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
-        maven { url "https://www.jitpack.io" }
-        maven { url "https://maven.aliyun.com/repository/public" } //jcenter & central
-        maven { url "https://maven.aliyun.com/repository/google" }
+        mavenCentral()
+        maven { url "https://jitpack.io" }
+        maven { url 'https://developer.huawei.com/repo/' }
+        maven { url 'https://maven.aliyun.com/repository/central/' }
+        maven { url 'https://maven.aliyun.com/repository/public/' }
     }
 }