android - extend tablerow view -


i trying programmatically create xml view extending tablerow view:

 <tablerow         android:id="@+id/tablerow1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="center_vertical"         android:gravity="center_vertical"         android:weightsum="1.0" >          <button             android:id="@+id/tester_button"             style="?android:attr/buttonstylesmall"             android:layout_weight=".2"             android:layout_width="0dip"             android:layout_height="wrap_content"             android:text="a" />          <textview             android:id="@+id/textview2"             android:layout_width="0dip"             android:layout_height="fill_parent"             android:gravity="center"             android:layout_weight=".7"             android:text="column 1"             android:textappearance="?android:attr/textappearancelarge" />          <checkbox             android:id="@+id/checkbox1"             android:layout_weight=".1"             android:layout_width="0dip"             android:layout_height="wrap_content" />      </tablerow>

this class of extended row:

public class categoryrow extends tablerow {     layoutparams rowparams = new tablerow.layoutparams(layoutparams.wrap_content, layoutparams.wrap_content, gravity.center);     layoutparams innerparams = new tablerow.layoutparams(0, layoutparams.wrap_content, gravity.center);     checkbox check;     button arrowbutton;     textview categorytitle;      public categoryrow(context context) {         super(context);         this.setlayoutparams(rowparams);         this.setgravity(gravity.center);         this.setweightsum(1);          check = new checkbox(context);         innerparams.weight = (float) 0.1;         check.setlayoutparams(innerparams);          arrowbutton = new button(context);         innerparams.weight = (float) 0.2;         arrowbutton.setlayoutparams(innerparams);         arrowbutton.settext("a");          categorytitle = new textview(context);         innerparams.weight = (float) 0.7;         categorytitle.setlayoutparams(innerparams);         categorytitle.settextappearance(context, android.r.attr.textappearancelarge);          //add views row         this.addview(arrowbutton);         this.addview(categorytitle);         this.addview(check);     }      public void setcategorytitle(string title){         categorytitle.settext(title);     }      public void checkcategory(){         check.setchecked(true);     }      public void uncheckcategory(){         check.setchecked(false);     } }

in activity adding categoryrow view tablelayout addview function.

public class notificationcategorise extends activity {     tablelayout categoryconteiner;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_notification_categorise);          categoryconteiner = (tablelayout) findviewbyid(r.id.categories_conteiner);         categoryrow categoryrow = new categoryrow(this);         categoryrow.setcategorytitle("bla");         categoryconteiner.addview(categoryrow);       }

my problem categoryrow not added activity sceen.

i have changed extended class code, , worked fine.

import android.content.context; import android.view.gravity; import android.widget.button; import android.widget.checkbox; import android.widget.tablerow; import android.widget.textview;  public class categoryrow extends tablerow {     layoutparams rowparams = new tablerow.layoutparams(layoutparams.match_parent, layoutparams.match_parent);     layoutparams innerparams1 = new tablerow.layoutparams(0, layoutparams.match_parent, gravity.center);     layoutparams innerparams2 = new tablerow.layoutparams(0, layoutparams.match_parent, gravity.center);     layoutparams innerparams3 = new tablerow.layoutparams(0, layoutparams.match_parent, gravity.center);     checkbox check;     button arrowbutton;     textview categorytitle;      public categoryrow(context context) {         super(context);         this.setlayoutparams(rowparams);         this.setweightsum(1f);          check = new checkbox(context);         innerparams1.weight = 0.1f;         check.setlayoutparams(innerparams1);          arrowbutton = new button(context);         innerparams2.weight = 0.2f;         arrowbutton.setlayoutparams(innerparams2);         arrowbutton.settext("a");          categorytitle = new textview(context);         categorytitle.setgravity(gravity.center);         innerparams3.weight = 0.7f;         categorytitle.setlayoutparams(innerparams3);         categorytitle.settextappearance(context, android.r.attr.textappearancelarge);          //add views row         this.addview(arrowbutton);         this.addview(categorytitle);         this.addview(check);     }      public void setcategorytitle(string title){         categorytitle.settext(title);     }      public void checkcategory(){         check.setchecked(true);     }      public void uncheckcategory(){         check.setchecked(false);     } }

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