Android GridLayout API 21

Question

I am trying to execute something like this:

Currently, I manually set the tile width to half the width of the screen. This works well, but it makes it difficult to add separators between the plates (as shown in the screenshot). Fortunately, it looks like API 21 now has weight support in GridLayout , provided here for your convenience:

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <GridLayout
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:columnCount="2">
        <TextView android:layout_width="wrap_content" android:layout_gravity="fill_horizontal" android:text="Hello" android:layout_columnWeight="1" />
        <TextView android:layout_width="wrap_content" android:layout_gravity="fill_horizontal" android:text="Hello" android:layout_columnWeight="1" />
        <TextView android:layout_width="wrap_content" android:layout_gravity="fill_horizontal" android:text="Hello" android:layout_columnWeight="1" />
        <TextView android:layout_width="wrap_content" android:layout_gravity="fill_horizontal" android:text="Hello" android:layout_columnWeight="1" />
        <TextView android:layout_width="wrap_content" android:layout_gravity="fill_horizontal" android:text="Hello" android:layout_columnWeight="1" />
    </GridLayout>
</RelativeLayout>

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Answer 1

android:layout_width="0dp" GridLayout ( layout_width="0dp" .)

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Answer 2

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  <GridLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"        
    android:columnCount="2" > 

    <Button
        android:layout_column="0"
        android:layout_gravity="fill"
        android:layout_row="0"
        android:layout_columnWeight="1"
        android:text="c0 | r0" />

   <Button
        android:layout_column="1"
        android:layout_gravity="fill"
        android:layout_row="0"
         android:layout_columnWeight="1"
        android:text="c1 | r0" />

   <Button
        android:layout_column="1"
        android:layout_gravity="fill"
        android:layout_row="3"
        android:layout_columnWeight="1"
        android:text="c1 | r3" />

   <Button
        android:layout_column="0"
        android:layout_gravity="fill"
        android:layout_row="1"
        android:layout_columnWeight="1"
        android:text="c0 | r1" />

</GridLayout>

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