java - Andriod add header and footer programmicatlly -


i have following code need add programmatically "simple" fixed header ( image) , footer (with button) using relative layout: 

/* sample application create items, need header image , footer button*/      import android.support.v7.app.appcompatactivity;     import android.os.bundle;     import android.app.activity;     import android.graphics.typeface;     import android.os.bundle;     import android.view.view;     import android.view.viewgroup.layoutparams;     import android.view.window;     import android.widget.button;     import android.widget.checkbox;     import android.widget.imageview;     import android.widget.compoundbutton;     import android.widget.compoundbutton.oncheckedchangelistener;     import android.widget.linearlayout;     import android.widget.scrollview;     import android.widget.toast;      public class mainactivity extends activity {      scrollview scrollview;     button dynamicbtn;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         // requestwindowfeature(window.feature_no_title); //appcompactivity on public class         setcontentview(r.layout.activity_main);          scrollview = new scrollview(this);         linearlayout linearlayout = new linearlayout(this);         linearlayout.setorientation(linearlayout.vertical);         scrollview.addview(linearlayout);          imageview imagetop = new imageview(this);         imagetop.setbackgroundresource(r.mipmap.ic_launcher );         imagetop.setmaxheight(50);         imagetop.setmaxwidth(50);         linearlayout.addview(imagetop);          for(int = 0; i<25;i++)         {             linearlayout linear1 = new linearlayout(this);             linear1.setorientation(linearlayout.horizontal);             linearlayout.addview(linear1);              imageview image = new imageview(this);             image.setbackgroundresource(r.mipmap.ic_launcher );             image.setmaxheight(50);             image.setmaxwidth(50);             linear1.addview(image);              dynamicbtn = new button(this);             dynamicbtn.settext("button no... "+i);             dynamicbtn.setid(i);             dynamicbtn.settextsize(10);             dynamicbtn.setpadding(8, 3, 8, 3);             dynamicbtn.settypeface(typeface.serif,typeface.bold_italic);             dynamicbtn.setlayoutparams(new layoutparams(layoutparams.wrap_content,layoutparams.wrap_content));             linear1.addview(dynamicbtn);             dynamicbtn.setonclicklistener(new view.onclicklistener()             {                 @override                 public void onclick(view v)                 {                     toast.maketext(getapplicationcontext(), "yipee.."+ v.getid(), toast.length_short).show();                 }             });              checkbox dynamicchk = new checkbox(this);             dynamicchk.setid(i);             dynamicchk.settext("wow..a checkbox" + i);             linear1.addview(dynamicchk);             dynamicchk.setoncheckedchangelistener(new oncheckedchangelistener()             {                 @override                 public void oncheckedchanged(compoundbutton arg0, boolean arg1)                 {                     toast.maketext(getapplicationcontext(), "checked.."+ arg0.getid() + " " + arg1, toast.length_short).show();                 }             });           }          this.setcontentview(scrollview);      } }


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