Question

I want to customize Buttons for my application. The application has a color picker where the user will select color and I have to set that particular start/end color to the buttons. These colro values will be stored in an object “Utility”.

Basically from start only, I want to use “Utility” object to set colors for background, text color, font, etc. And again when the color is changed by the user I got to change it to the buttons and refresh them. And also to save colors in a file, so next time user starts app, it comes up with the last color selected.

I couldn’t find <selector> to be the best option, as I wont be able to change the color in xml. What can be the best option for such requirement ?

UPDATIONS :
@jitendra, from your answer I got somethign helpful. I use GradientDrawable to set colors of my buttons. In my onCreate() of the Activity, I call a method RefreshComponents() that sets the background of root, text color/size of buttons and gradient colors of the buttons. It works properly, but the only problem I see is the on applying GradientDrawable to the button the gap between 2 buttons is lost.

This is the image WITHOUT applying GradientDrawable :

On applying GradientDrawable the output is :

You see the size of button is increased a bit from all the sides. If I apply to next button also, they both touch eachother. My xml for the above is :

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/mainroot" android:layout_width="fill_parent"    
  android:layout_height="fill_parent" android:orientation="vertical"
  android:paddingTop="35dip" android:paddingBottom="35dip" 
  android:paddingLeft="35dip" android:paddingRight="35dip"android:gravity="center" >

   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/mainrow1" android:layout_width="fill_parent"
      android:layout_height="wrap_content" android:orientation="horizontal" 
      android:layout_marginBottom="15dip" android:gravity="center_horizontal" >
         <Button android:text="Accounting" android:id="@+id/accBtn" android:layout_width="80dip" style="@style/TileButtonStyle"  />
        <Button android:text="Data" android:id="@+id/dataBtn" android:layout_width="80dip" android:layout_height="fill_parent"></Button>
        <Button android:text="Information" android:id="@+id/infoBtn" android:layout_width="80dip" android:layout_height="fill_parent" android:ellipsize="end"></Button>
  </LinearLayout>
  ..... Other lineasr layout with same parameters as above child 

And the GradientDrawable that I create is :

    public static GradientDrawable getButtonDrawable(Button btn) {
    int colors[] = {getStartColor(), getEndColor()};
    GradientDrawable grad = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT, colors);
    grad.setCornerRadius(5f);
    return grad;
}

And finally in my onCreate(), I add :

    GradientDrawable btnGradient = Utility.getButtonDrawable(btn1); 
btn1.setBackgroundDrawable(btnGradient);

What is going wrong here ? Is the margin around the button becoming 0 ? Do I have to set bounds for the grad, or again set LayoutParams for the button ?

Any help is appreciative to help me achieve my goal.

Thanks

Answer 1

Oh I got the solution :

I added layout_marginRight attribute to buttons and that did the work.

Though I am still concerned, without GradientDrawable the buttons had margin betweenthem then after applying GradientDrawable why is the default margin lost ? Why is the need of additional layout_marginRight to be added ?

If anyone yet has answer for this, please let me know.

Thanks