Linear Layout

Screen 1

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <TextView

      android:id="@+id/LinearLayout"

      android:text="LinearLayout"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"/>

    <Button

      android:id="@+id/button1"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:text="this is a button 1"/>

    <Button

      android:id="@+id/button2"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:text="this is a button 2"/>

</LinearLayout>

 

Screen 2

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="horizontal"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <TextView

      android:id="@+id/LinearLayout"

      android:text="Linear Layout"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"/>

    <Button

      android:id="@+id/button1"

      android:layout_height="wrap_content"

      android:layout_width="wrap_content"

      android:text="this is a button 1"/>

    <Button

      android:id="@+id/button2"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:text="this is a button 2"/>

</LinearLayout>

Screen 3

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <TextView

      android:id="@+id/LinearLayout"

      android:text="Linear Layout"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"/>

    <Button

      android:id="@+id/button1"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:text="width set to fill_parent"/>

    <Button

      android:id="@+id/button2"

      android:layout_height="wrap_content"

      android:layout_width="wrap_content"

      android:text="width set to wrap_content"/>

</LinearLayout>

Screen 4

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <TextView

      android:id="@+id/LinearLayout"

      android:text="Linear Layout"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"/>

    <Button

      android:id="@+id/button1"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:layout_weight="2"

      android:text="weight set to 2"/>

    <Button

      android:id="@+id/button2"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:layout_weight="1"

      android:text="weight set to 1"/>

</LinearLayout>

Screen 5

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <TextView

      android:id="@+id/LinearLayout"

      android:text="Linear Layout"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"/>

    <LinearLayout

      android:id="@+id/row1"

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="left">

            <Button

                  android:id="@+id/button1"

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content"

                  android:text="left"

                  />

    </LinearLayout>

    <LinearLayout

      android:id="@+id/row2"

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="center">

            <Button

                  android:id="@+id/button2"

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content"

                  android:text="center"/>

    </LinearLayout>

    <LinearLayout

      android:id="@+id/row3"

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="center_vertical">

            <Button

                  android:id="@+id/button3"

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content"

                  android:text="center_vertical"/>

    </LinearLayout>

    <LinearLayout

      android:id="@+id/row4"

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="center_horizontal">

            <Button

                  android:id="@+id/button4"

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content"

                  android:text="center_horizontal"/>

    </LinearLayout>

    <LinearLayout

      android:id="@+id/row5"

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="right">

            <Button

                  android:id="@+id/button5"

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content"

                  android:text="right"/>

    </LinearLayout>

    <LinearLayout

      android:id="@+id/row6"

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="bottom">

            <Button

                  android:id="@+id/button6"

                  android:layout_width="wrap_content"

                  android:layout_height="wrap_content"

                  android:text="bottom"/>

    </LinearLayout>

   

</LinearLayout>

Screen 6

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="vertical"

  android:layout_width="match_parent"

  android:layout_height="match_parent">

  <Button

      android:id="@+id/button1"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:layout_gravity="right"

      android:text="android layout gravity=right"/>

    <Button

      android:id="@+id/button2"

      android:layout_height="wrap_content"

      android:layout_width="fill_parent"

      android:gravity="right"

      android:text="android gravity=right"/>

   

</LinearLayout>

Screen 7

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="horizontal"

  android:layout_width="match_parent"

  android:layout_height="match_parent">

  <Button

      android:id="@+id/button1"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:layout_marginLeft="20dp"

      android:text="button 1"/>

      <Button

      android:id="@+id/button2"

      android:layout_width="120dp"

      android:layout_height="wrap_content"

      android:gravity="right|center_vertical"

      android:text="button 2"/>

   

</LinearLayout>