GridView item不显示

1、需求：item大小一定，列数不定，行数不定
问题：item不显示

<GridView
    android:id="@+id/gv_comment_likes"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="@dimen/dp15"
    android:scrollbars="none"
    android:listSelector="#00000000"
    android:cacheColorHint="#00000000"
    android:columnWidth="@dimen/dp32"
    android:numColumns="auto_fit"
    android:stretchMode="none"
    android:verticalSpacing="@dimen/dp10"
    android:horizontalSpacing="@dimen/dp10"
    >
</GridView>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/iv_comment_like_item"
        android:layout_width="@dimen/dp32"
        android:layout_height="@dimen/dp32"
        android:scaleType="centerCrop" />


</LinearLayout>

解决方式：
android:columnWidth=”@dimen/dp32”
android:numColumns=”auto_fit”