android - Centered textview does not appear in RelativeLayout -

i have textview, need centered horizontally , vertically inside square. this, have put inside relativelayout:

<?xml version="1.0" encoding="utf-8"?> <relativelayout     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_height="match_parent"     android:layout_width="match_parent"     android:background="#fff"     >      <textview         android:id="@+id/centered_text_view_text"         android:layout_centerinparent="true"         android:text="test"         android:background="#00ff00"         android:textcolor="#000"         android:textsize="16dp"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         />  </relativelayout> 

i instantiate relativelayout layoutinflater , call layout method on relativelayout position need it.

        layoutinflater inflater = helpers.getinflater();         containerlayout = (relativelayout) inflater.inflate(r.layout.centered_text_view, null);         textview = (textview) containerlayout.findviewbyid(r.id.centered_text_view_text);         ... (later in code)         containerlayout.layout(dayleft, weektop, dayright, weekbottom); 

my problem textview not visible. can see white background relativelayout, neither text nor background textview.

i have tried getting rid of relativelayout , calling layout method on textview. haven't been able work, however, because text horizontally, , not vertically, aligned after set gravity on textview.

first - custom views should extend sort of view.class. class extend should whatever root view in xml.

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second - keeping reference containerlayout (root view) redundant. class is root view.

replace containerlayout this or removing entirely:

textview = (textview) findviewbyid(r.id.centered_text_view_text); 

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third - can't how inflating wrong, have never done that.

instead of calling layout on containerlayout, try inflating inflate() method. (you access when extending sub class of view)

inflate(getcontext(), r.layout.view_user_tag, this); 

notice how setting this root, , using inflater view class.

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your class may this:

public static class textinlinear extends relativelayout {        public textview textview;        //region default constructers        public void textinlinear(context context){         this(context, null);      }       public void textinlinear(context context, attributeset attrs){         this(context, attrs, 0);      }       public void textinlinear(context context, attributeset attrs, int defstyleattr) {          super(context, attrs, defstyleattr);          if(!isineditmode()) init();      }       //endregion       private void init(){          inflate(getcontext(), r.layout.view_user_tag, this);          textview = (textview) this.findviewbyid(r.id.centered_text_view_text);      }        /* more methods. i.e. settext(), gettext() or whatever */ }