Nested Linear Layout In Android

In the previous post  we worked on Simple Linear Layout. We saw that there can be two orientation Vertical and Horizontal in which Views/Widgets can be arranged.

In this post we will use both the Orientations Vertical and Horizontal  to nest the Layout.
By nesting the Layout we can make better and finer GUI.

We want  following Layout

Name:                EditText
Password:           EditText
Login Button    Cancel Button


The parent Layout has Vertical Orientation and Children Layouts have Horizontal Orientation.

main.xml

<!--   Parent Layout With Vertical Orientation -->
<LinearLayout 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:orientation="vertical"
    android:layout_marginTop="30dp">
 
  <!--  1st Child Layout  (Nested In Parent Layout) with Horizontal Orientation -->

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

  <TextView
    android:id="@+id/textViewName"
    android:layout_gravity="center_horizontal"
    android:layout_marginTop="30dp"
    android:layout_marginBottom="25dp"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:text="Name" />

  <EditText
      android:id="@+id/editText2"
      android:layout_weight="1"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:ems="10" />
 
   </LinearLayout>
 
    <!--  2nd Child Layout  (Nested In Parent Layout) with Horizontal Orientation -->
   <LinearLayout mlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

  <TextView
    android:id="@+id/textViewPassword"
    b
    android:layout_gravity="center_horizontal"
    android:layout_marginTop="30dp"
    android:layout_marginBottom="25dp"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Password" />

  <EditText
      android:id="@+id/editTextPassword"
      android:layout_weight="1"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:ems="10"
      android:inputType="textPassword" />
 
    </LinearLayout>

  <!--  3rd Child Layout  (Nested In Parent Layout) with Horizontal Orientation -->
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
 
<Button
    android:id="@+id/button1"
    android:layout_weight="1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Login" />


<Button
    android:id="@+id/button2"
    android:layout_weight="1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Cancel " />

    </LinearLayout>


</LinearLayout>

Thing to Remember here is

android:layout_weight       the attribute specifies how much weight/space  the view will have or acquire on parent.

In Above example

android:layout_weight is 1   in both button so they have acquired equal space

Now give 1 weight to first button and 2 to second button.
See the effect

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

        xmlns:tools="http://schemas.android.com/tools"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="horizontal">

   

<Button

    android:id="@+id/button1"

    android:layout_weight="1"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="Login" />

<Button

    android:id="@+id/button2"

    android:layout_weight="2"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="Cancel " />

    </LinearLayout>

s

 

Advance Android Topics

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                   Customizing the Display Time of Toast
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More Android Topics:

  

Android : Introduction

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                     Configuring Eclipse for Android Development

          Begging With Android

                     Creating Your First Android Project
                     Understanding Android Manifest File of your android app

         Working With Layouts

                      Understanding Layouts in Android
                          Working with Linear Layout (With Example)
                                Nested Linear Layout (With Example)
                          Table Layout
                          Frame Layout(With Example)
                         Absolute Layout
                         Grid Layout

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                     Activity Life Cycle
                     Starting Activity For Result
                     Sending Data from One Activity to Other in Android
                     Returning Result from Activity

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                     Using Buttons and EditText in Android 
                     Using CheckBoxes in Android 
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                     Grid View

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                     Adding Check Boxes In Dialog
                     Creating Customized Dialogs in Android
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                   Creating Dialog To Collect User Input

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                   How To Vibrate The Android Phone
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                DataBase : Working With Database

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                             Creating Table In Android
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