Adjusting width & height for view after rotating it by 90 degree in Android -

i want add view & rotate 90 degree programmatically, can't figure how set dimensions properly.

this placeholder:

        <framelayout             android:layout_width="40dp"             android:layout_height="match_parent"             android:id="@+id/placeholder"             android:orientation="vertical"             android:background="@color/green"             android:layout_weight="1"> 

and how code looks like:

    framelayout placeholderview = (framelayout) findviewbyid(r.id.placeholder);      view myview = new view(getapplicationcontext());     myview.setbackgroundcolor(color.red);     myview.setrotation(90);     framelayout.layoutparams layoutparams = new framelayout.layoutparams(viewgroup.layoutparams.match_parent, viewgroup.layoutparams.match_parent);     myview.setlayoutparams(layoutparams);     placeholderview.addview(myview); 

the result both width & height same value, view looks this:

while wanted expand on entire height of parent.

viewgroup.layoutparams.fill_parenthello can please try instead of this:

myview.setrotation(90); framelayout.layoutparams layoutparams = new framelayout.layoutparams(viewgroup.layoutparams.match_parent, viewgroup.layoutparams.match_parent) 

try this:

remove setrotation

framelayout.layoutparams layoutparams = new framelayout.layoutparams(viewgroup.layoutparams.fill_parent, viewgroup.layoutparams.fill_parent);