java - How do I link a View class to the XML screen? -

i still learning java , how use eclipse have xml main activity file (the graphical layout) , java file named mainscreen extends activity.

inside mainscreen file have class named myview extends view , can display on device screen calling setcontentview(new myview(this)); mainscreen oncreate method. how make can have myview view within xml file?

i can change setcontentview(r.layout.activity_main_screen);and sets xml file how have both displayed.

i want display screen if following setcontentview(r.layout.activity_main_screen); layout have myview displayed inside seperate view on screen. have tried setting setcontentview(r.id.view1); if being honest not 100% sure doing still learning.

can please point me in right direction or me out? have been googling trying figure out , i'm little lost.

thanks

edit: added code below

xml

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context=".mainscreen" >      <imageview         android:id="@+id/imageview1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparenttop="true"         android:layout_centerhorizontal="true"         android:layout_margintop="20dp"         android:contentdescription="@string/hello_world"         android:src="@drawable/title_plate" />      <view         android:id="@+id/view1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_below="@+id/imageview1"         android:layout_centerhorizontal="true" />  </relativelayout> 

the start of myview class

public class myview extends view { public myview(context context) { super(context); //setcontentview(r.id.view1); setcontentview(r.layout.activity_main_screen); 

the oncreate main file itself

@override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); //setcontentview(r.layout.activity_main_screen); setcontentview(new myview(this)); //view circleview = (view)findviewbyid(r.id.view1);  //circleview = (new myview(this)); //circleview = findviewbyid(r.id.view1); } 

i won't post other stuff file contains seem pretty pointless code want do.

take class view class

package com.example.utils.views;  import android.content.context; import android.graphics.typeface; import android.util.attributeset; import android.widget.button;  public class fontbutton extends button {     public static typeface font_name;      public fontbutton(context context) {         super(context);         if (font_name == null)             font_name = typeface.createfromasset(context.getassets(),                     "fonts/signika-regular.ttf");         this.settypeface(font_name);     }      public fontbutton(context context, attributeset attrs) {         super(context, attrs);         if (font_name == null)             font_name = typeface.createfromasset(context.getassets(),                     "fonts/signika-regular.ttf");         this.settypeface(font_name);     }      public fontbutton(context context, attributeset attrs, int defstyle) {         super(context, attrs, defstyle);         if (font_name == null)             font_name = typeface.createfromasset(context.getassets(),                     "fonts/signika-regular.ttf");         this.settypeface(font_name);     } }      **now in xml file**      <com.example.utils.views.fontbutton          android:id="@+id/register_user_code"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:textsize="17sp"         android:background="@drawable/enter_pin"         android:onclick="@string/countrycodeclick"         android:text="@string/default_country_code" />