Gradle:

compile 'com.aliouswang:library:1.0.0'

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    >
    <RelativeLayout
        android:layout_width="match_parent"
        android:background="@android:color/holo_blue_dark"
        android:layout_weight="1"
        android:layout_height="wrap_content">

        <com.aliouswang.view.library.SquareGridView
            android:id="@+id/square_grid_view"
            app:numColumns="3"
            app:maxSize="9"
            app:verticalSpacing="5dp"
            app:horizontalSpacing="5dp"
            app:ratio="0.8"
            android:padding="5dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>

    </RelativeLayout>
  </LinearLayout>

SquareGridView squareGridView = (SquareGridView) convertView
                    .findViewById(R.id.square_grid_view);
            final Diary diary = mDiaryList.get(position);
            SquareViewAdapter<Diary> adapter = new SquareViewAdapter<Diary>() {
                @Override
                public int getCount() {
                    return diary.photos.size();
                }

                @Override
                public Diary getItem(int position) {
                    return diary;
                }

                @Override
                public String getImageUrl(int position) {
                    return diary.photos.get(position);
                }

                @Override
                public void onItemClick(View view, int index, Diary t) {
                    Toast.makeText(MainActivity.this,
                            "index :" + index, Toast.LENGTH_SHORT).show();
                }
            };
squareGridView.setAdapter(adapter);