Android表布局最后一行较小

我想要一个3行4列的tablellayout。

我用一款5.5屏幕大小的手机(三星Galaxy Note 2)试过了,两行的高度几乎相同,但在一款9.6英寸的平板电脑(三星Galaxy Tab E)上,最后一行非常小。我做错了什么?

我还附上了我的布局文件和实际布局的截图。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/domestic"
    android:orientation="vertical">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:layout_margin="5sp"
        android:gravity="center"
        android:background="@drawable/rounded_corner_start">

        <TableLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:measureWithLargestChild="true"
            android:stretchColumns="*">

            <!-- Row with 4 columns -->
            <TableRow
                android:layout_height="0dp"
                android:layout_width="match_parent"
                android:layout_weight="1">
                <!--Kutya-->
                <LinearLayout
                    android:id="@+id/lnDog"
                    android:layout_width="0dp"
                    android:layout_height="fill_parent"
                    android:layout_margin="3sp"
                    android:orientation="vertical"
                    android:background="@drawable/rounded_corner_elements"
                    android:layout_weight="1">
                    <ImageView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:layout_weight="0.8"
                        android:src="@drawable/dog"/>
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:fontFamily="sans-serif-thin|bold"
                        android:text="@string/dog"
                        android:gravity="center"
                        android:layout_weight="0.2" />
                </LinearLayout>
                <!--Macska-->
                <LinearLayout
                    android:id="@+id/lnCat"
                    android:layout_width="0dp"
                    android:layout_height="fill_parent"
                    android:layout_margin="3sp"
                    android:orientation="vertical"
                    android:background="@drawable/rounded_corner_elements"
                    android:layout_weight="1">
                    <ImageView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:layout_weight="0.8"
                        android:src="@drawable/cat2"/>
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:fontFamily="sans-serif-thin|bold"
                        android:text="@string/cat"
                        android:gravity="center"
                        android:layout_weight="0.2" />
                </LinearLayout>
                <!--Diszno-->
                <LinearLayout
                    android:id="@+id/lnPig"
                    android:layout_width="0dp"
                    android:layout_margin="3sp"
                    android:layout_height="fill_parent"
                    android:orientation="vertical"
                    android:background="@drawable/rounded_corner_elements"
                    android:layout_weight="1">
                    <ImageView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:layout_weight="0.8"
                        android:src="@drawable/pig"/>
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:fontFamily="sans-serif-thin|bold"
                        android:text="@string/pig"
                        android:gravity="center"
                        android:layout_weight="0.2" />
                </LinearLayout>
                <!--Tyuk-->
                <LinearLayout
                    android:id="@+id/lnChicken"
                    android:layout_width="0dp"
                    android:layout_margin="3sp"
                    android:layout_height="fill_parent"
                    android:orientation="vertical"
                    android:background="@drawable/rounded_corner_elements"
                    android:layout_weight="1">
                    <ImageView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:layout_weight="0.8"
                        android:src="@drawable/chicken"/>
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="0dp"
                        android:fontFamily="sans-serif-thin|bold"
                        android:text="@string/chicken"
                        android:gravity="center"
                        android:layout_weight="0.2" />
                </LinearLayout>
            </TableRow>
           ....
           4 times
        </TableLayout>
    </LinearLayout>
</LinearLayout>