信息界面——GridLayout

<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:rowCount="4"
    android:columnCount="2">

    <EditText
        android:layout_rowWeight="1"
        android:layout_columnWeight="1"
        android:layout_gravity="fill"
        android:layout_columnSpan="2"
        android:text="TO"/>

    <EditText
        android:layout_rowWeight="1"
        android:layout_columnWeight="1"
        android:layout_gravity="fill"
        android:layout_columnSpan="2"
        android:text="Subject"/>

    <EditText
        android:layout_rowWeight="35"
        android:layout_columnWeight="1"
        android:layout_gravity="fill"
        android:layout_columnSpan="2"
        android:text="Message"
        android:gravity="top|left"/>

    <Button
        android:layout_rowWeight="1"
        android:layout_columnWeight="1"
        android:layout_gravity="fill"
        android:text="Resent" />
    <Button
        android:layout_rowWeight="1"
        android:layout_columnWeight="1"
        android:layout_gravity="fill"
        android:text="Send" />




</GridLayout>