android - Change colour of imageView programatically -

i change colour of imageview object using code, appears proving lot more difficult sounds.

here xml object:

 <imageview     android:id="@+id/lifesquare"     android:layout_width="50dp"     android:layout_height="30dp"     android:background="#2a80b9"     android:visibility="invisible"     android:adjustviewbounds="false"     android:clickable="true"     android:croptopadding="false"     android:padding="0dp"     android:scaletype="fitstart" /> 

it's blue square, can see. able change line in code:

    android:background="#2a80b9" 

that's it! have read many posts on topic, promising had following solution:

view someview = findviewbyid(r.id.lifesquare); view root = someview.getrootview(); root.setbackgroundcolor(color.parsecolor("#fffff")); 

but doesn't work. leaves colour is.

has done before, or have better ideas?

thank you.

why setting background of root view. statement work :

imageview someview = (imageview) findviewbyid(r.id.lifesquare); someview.setbackgroundcolor(color.parsecolor("#ffffff")); 

concern :

one more point imageview has visibility invisible :

android:visibility="invisible" 

why setting invisible property imageview?