在GridView中居中子项

我试图用图像缩略图填充gridview。我无法将子项居中，并且当图像方向不同（即横向与纵向）时会发生不匹配。图片显示了它是如何发出的。我不想更改缩略图的大小，但要在同一级别上显示文本视图，并相应地将imageview居中。

带有未居中子项的照片gridview

Gridview XML：

<syook.syookfirst.classes.Utils.ExpandableHeightGridView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/listview_call_photos"
        android:layout_marginLeft="2dp"
        android:layout_marginRight="2dp"
        android:layout_weight="1"
        android:nestedScrollingEnabled="true"
        android:gravity="center"
        android:layout_gravity="center"
        android:numColumns="auto_fit">

    </syook.syookfirst.classes.Utils.ExpandableHeightGridView>

ExpandableHeightGridView类：

public class ExpandableHeightGridView extends GridView
{

boolean expanded = false;

public ExpandableHeightGridView(Context context)
{
    super(context);
}

public ExpandableHeightGridView(Context context, AttributeSet attrs)
{
    super(context, attrs);
}

public ExpandableHeightGridView(Context context, AttributeSet attrs, int defStyle)
{
    super(context, attrs, defStyle);
}

public boolean isExpanded()
{
    return expanded;
}

@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
    // HACK! TAKE THAT ANDROID!
    if (isExpanded())
    {
        // Calculate entire height by providing a very large height hint.
        // But do not use the highest 2 bits of this integer; those are
        // reserved for the MeasureSpec mode.
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);

        ViewGroup.LayoutParams params = getLayoutParams();
        params.height = getMeasuredHeight();
    }
    else
    {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}

public void setExpanded(boolean expanded)
{
    this.expanded = expanded;
}
}

Gridview子布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@drawable/button_pressed_nocolor_all"
    android:gravity="center">

<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/photo_thumb_calldetails"
    android:padding="5dp"
    android:layout_gravity="center" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/label_photo_name"
    android:textSize="12sp"
    android:layout_gravity="center"
    android:gravity="center"
    android:padding="2dp"
    android:layout_marginBottom="2dp" />

感谢对此的任何帮助。我尝试搜索此类问题，但无法通过提供的任何解决方案来解决。