Adjust width to half screen

Question

I came across this link :

Assign width to half available screen width declaratively

How to do the same in relative layout? Here\'s the code: Trying linea

Answer 1

In addition to urSus's answer, it's better to use a Space class instead of View:

   <Space android:id="@+id/fakeView"
       android:layout_width="0dp"
       android:layout_height="0dp" 
       android:layout_centerInParent="true"/>

Answer 2

This is a nice workaround if you precisely need half, when using RelativeLayout. What you do is, make a fake invisible view centered in parent, and have left button be alignParentLeft and alignRight to that fake view and the right button vice-versa

<RelativeLayout 
   android:layout_width="fill_parent"
   android:layout_height="wrap_content">

   <View android:id="@+id/fakeView"
       android:layout_width="0dp"
       android:layout_height="0dp" 
       android:layout_centerInParent="true"/>
   <Button
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_alignRight="@id/fakeView"
       android:layout_alignParentLeft="true"
       android:text="Left"/>

   <Button 
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignLeft="@id/fakeView"
      android:layout_alignParentRight="true"
      android:text="Right"/>

</RelativeLayout>

Its really clever.

Answer 3

    Display display = getWindowManager().getDefaultDisplay();
    int width = display.getWidth();
    int height = display.getHeight();
    plannerEditLayout = (RelativeLayout) findViewById(R.id.plannerLayoutEdit);
    plannerEditLayout.setGravity(Gravity.CENTER_VERTICAL);
    plannerEditLayout.setLayoutParams(new RelativeLayout.LayoutParams(
            (width / 2), height));

I use the same code for LinearLayout. Havent tried it out myslef for RelativeLayout. Give it a shot. Comment if it doesn't work.

Answer 4

Wrap the same thing with Relative layout which should work for you.

<LinearLayout android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
    <Button android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="somebutton">

    <TextView android:layout_width="fill_parent"
            android:layout_height="Wrap_content"
            android:layout_weight="1">
</LinearLayout>

Answer 5

<LinearLayout android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
    <Button android:layout_width="match_parent"
             android:id="@+id/button"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="somebutton">

    <TextView android:layout_width="match_parent"
             android:id="@+id/textview"
            android:layout_height="Wrap_content"
            android:layout_weight="1">
</LinearLayout>

In above example used LinearLayout, set widget layout_width to "match_parent" and provide weight(to specify area to be occupy).

This solves your problem.