Android Layout Right Align

Question

I have the following layout in place

<?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">      <LinearLayout android:orientation="vertical"         android:layout_width="fill_parent" android:layout_height="fill_parent"         android:layout_weight="1">           <WebView xmlns:android="http://schemas.android.com/apk/res/android"             android:id="@+id/webview" android:layout_width="fill_parent"             android:layout_height="fill_parent" />     </LinearLayout>      <LinearLayout android:orientation="horizontal"  android:layout_width="fill_parent" android:layout_height="fill_parent"  android:layout_weight="13">         <LinearLayout android:id="@+id/LinearLayout01" android:layout_width="wrap_content" android:layout_height="wrap_content">             <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1">                     <ImageButton android:background="@null" android:id="@+id/back" android:layout_width="fill_parent" android:layout_height="wrap_content" android:src="@drawable/back" android:padding="10dip" />             </LinearLayout>              <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1">                 <ImageButton android:background="@null" android:id="@+id/forward" android:layout_width="fill_parent" android:layout_height="wrap_content" android:src="@drawable/forward" android:padding="10dip" />             </LinearLayout>          </LinearLayout>          <RelativeLayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="fill_parent"    android:layout_weight="1" >                 <ImageButton android:background="@null" android:id="@+id/special"   android:layout_width="fill_parent" android:layout_height="wrap_content" android:src="@drawable/barcode" android:padding="10dip" android:layout_gravity="right"/>         </RelativeLayout>         </LinearLayout>   </LinearLayout> 

For the purpose of this question, I am only concerned about the lower half of the layout. Right now it contains 3 imagebuttons. The first 2, I want right next to each other left aligned. The third one, I want to be aligned to the right side.

As is, the first 2 buttons are where I want them to be, but the 3rd is stubbernly staying left-aligned. How would I make it right aligned.

Answer 1

The layout is extremely inefficient and bloated. You don't need that many LinearLayouts. In fact you don't need any LinearLayout at all.

Use only one RelativeLayout. Like this.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="wrap_content">     <ImageButton android:background="@null"         android:id="@+id/back"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:src="@drawable/back"         android:padding="10dip"         android:layout_alignParentLeft="true"/>     <ImageButton android:background="@null"         android:id="@+id/forward"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:src="@drawable/forward"         android:padding="10dip"         android:layout_toRightOf="@id/back"/>     <ImageButton android:background="@null"         android:id="@+id/special"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:src="@drawable/barcode"         android:padding="10dip"         android:layout_alignParentRight="true"/> </RelativeLayout> 

Answer 2

You can do all that by using just one RelativeLayout (which, btw, don't need android:orientation parameter). So, instead of having a LinearLayout, containing a bunch of stuff, you can do something like:

<RelativeLayout>     <ImageButton         android:layout_width="wrap_content"         android:id="@+id/the_first_one"         android:layout_alignParentLeft="true"/>     <ImageButton         android:layout_width="wrap_content"         android:layout_toRightOf="@+id/the_first_one"/>     <ImageButton         android:layout_width="wrap_content"         android:layout_alignParentRight="true"/> </RelativeLayout> 

As you noticed, there are some XML parameters missing. I was just showing the basic parameters you had to put. You can complete the rest.