In this post I will be discussing about the different view layouts in an android mobile application.
1. Linear Layout
2. Relative Layout
3. Table Layout
Android layout allows you to create graphical view of your application. All layouts will be placed inside res/layout folder.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="Button1" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:text="Button2" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:layout_toRightOf="@+id/button2"
android:text="Button3" />
</RelativeLayout>
Example :
<tablelayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:shrinkcolumns="*"
android:stretchcolumns="*" >
<!-- Row 1 with single column -->
<tablerow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<textview
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_span="3"
android:background="#b0b0b0"
android:padding="18dip"
android:text="Row 1"
android:textcolor="#000"
android:textsize="18dp" >
</textview>
</tablerow>
<!-- Row 2 with 3 columns -->
<tablerow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#dcdcdc"
android:gravity="center"
android:padding="20dip"
android:text="Row 2 column 1"
android:textcolor="#000000" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#d3d3d3"
android:gravity="center"
android:padding="20dip"
android:text="Row 2 column 2"
android:textcolor="#000000" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#cac9c9"
android:gravity="center"
android:padding="20dip"
android:text="Row 2 column 3"
android:textcolor="#000000" >
</textview>
</textview>
</textview>
</tablerow>
<!-- Row 3 with 2 columns -->
<tablerow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#b0b0b0"
android:gravity="center"
android:padding="20dip"
android:text="Row 3 column 1"
android:textcolor="#000000" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#a09f9f"
android:gravity="center"
android:padding="20dip"
android:text="Row 3 column 2"
android:textcolor="#000000" >
</textview>
</textview>
</tablerow>
</tablelayout>
Output :
1. Linear Layout
2. Relative Layout
3. Table Layout
Android layout allows you to create graphical view of your application. All layouts will be placed inside res/layout folder.
1. Linear Layout
Linear layout is a viewgroup that aligns all children in a single direction , vertically or horizontally.
horizontal :
<LinearLayout android:orientation="horizontal"> . . . . </LinearLayout>
Vertical :
<LinearLayout android:orientation="vertical"> . . . . </LinearLayout>
Example for horizontal :
<LinearLayout android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button1" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button2" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button3" />
</LinearLayout>
Vertical :
<LinearLayout android:orientation="vertical"> . . . . </LinearLayout>
Example for horizontal :
<LinearLayout android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button1" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button2" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button3" />
</LinearLayout>
Output :
Example for vertical :
<LinearLayout android:orientation="vertical"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button1" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button2" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button3" />
</LinearLayout>
android:layout_height="wrap_content"
android:layout_width="wrap_content">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button1" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button2" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button3" />
</LinearLayout>
Output :
2.Relative Layout
RelativeLayout is a view group that displays child views in relative positions.
Example : <RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="Button1" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:text="Button2" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:layout_toRightOf="@+id/button2"
android:text="Button3" />
</RelativeLayout>
Output :
3. Table Layout
Table layouts in Android works in the same way HTML table layouts work. You can divide your layouts into rows and columns Its very easy to understand.
<tablelayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:shrinkcolumns="*"
android:stretchcolumns="*" >
<!-- Row 1 with single column -->
<tablerow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<textview
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_span="3"
android:background="#b0b0b0"
android:padding="18dip"
android:text="Row 1"
android:textcolor="#000"
android:textsize="18dp" >
</textview>
</tablerow>
<!-- Row 2 with 3 columns -->
<tablerow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#dcdcdc"
android:gravity="center"
android:padding="20dip"
android:text="Row 2 column 1"
android:textcolor="#000000" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#d3d3d3"
android:gravity="center"
android:padding="20dip"
android:text="Row 2 column 2"
android:textcolor="#000000" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#cac9c9"
android:gravity="center"
android:padding="20dip"
android:text="Row 2 column 3"
android:textcolor="#000000" >
</textview>
</textview>
</textview>
</tablerow>
<!-- Row 3 with 2 columns -->
<tablerow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#b0b0b0"
android:gravity="center"
android:padding="20dip"
android:text="Row 3 column 1"
android:textcolor="#000000" >
<textview
android:id="@+id/TextView04"
android:layout_weight="1"
android:background="#a09f9f"
android:gravity="center"
android:padding="20dip"
android:text="Row 3 column 2"
android:textcolor="#000000" >
</textview>
</textview>
</tablerow>
</tablelayout>
Output :





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