android - Unable to display the created CustomView -

i've been trying create customview.
following tutorial , did directed when tried run code customview not displayed on android screen.
code attrs.xml is:-

<?xml version="1.0" encoding="utf-8"?> <resources>     <declare-styleable name="timeview">         <attr name="text" format="string"/>         <attr name="setcolor" format="boolean"/>     </declare-styleable>  </resources> 

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here code customview i.e timeview.java:-

package com.example.custom;  import java.text.simpledateformat; import java.util.calendar;  import android.content.context; import android.content.res.typedarray; import android.graphics.color; import android.util.attributeset; import android.widget.textview;  public class timeview extends textview{     public string titletext;     public boolean color;     public timeview(context context) {         super(context);         settimeview();         // todo auto-generated constructor stub     }     public timeview(context c,attributeset as)     {         super(c,as);         typedarray ty=c.obtainstyledattributes(as,r.styleable.timeview);         int count=ty.getindexcount();         try{             for(int i=0;i<count;i++)             {                 int attr=ty.getindex(i);                 if(attr==r.styleable.timeview_text)                 {                     titletext=ty.getstring(attr);                 }                 else if(attr==r.styleable.timeview_setcolor)                 {                     color=ty.getboolean(attr, false);                     decorate();                 }             }         }                 {             ty.recycle();         }     }     public timeview(context context, attributeset attrs, int defstyle) {         super(context, attrs, defstyle);          settimeview();      }     public void settimeview()     {         simpledateformat sdf=new simpledateformat("hh.mm aa");         string time=sdf.format(calendar.getinstance().gettime());         if(this.titletext!=null)         {             settext(this.titletext+" "+time);         }         else             settext(time);     }     public void decorate()     {         if(this.color==true)         {             setshadowlayer(4, 2, 2, color.rgb(250, 00, 250));             setbackgroundcolor(color.cyan);         }         else{             setbackgroundcolor(color.red);         }     } } 

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, lastly here code activity_main.xml

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     xmlns:custom="http://schemas.android.com/apk/res/com.example.custom"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     tools:context="com.example.custom.mainactivity" >      <com.example.custom.timeview         android:id="@+id/tv"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:textsize="40sp"         custom:text="my view"         custom:setcolor="true"/>     <textview         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/hello_world" />  </linearlayout> 

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getting result:-

don't know doing mistake.
please me!
thank in advance.

just overwrite code code it's working. make mistake while retrieving attributes. don't forget add package name @ first line

import java.text.simpledateformat; import java.util.calendar;  import android.content.context; import android.content.res.typedarray; import android.graphics.color; import android.util.attributeset; import android.widget.textview;  public class timeview         extends textview {     public string titletext;     public boolean color;      public timeview(context context) {         super(context);         settimeview(context, null);     }      public timeview(context c, attributeset as) {         super(c, as);         settimeview(c, as);     }      public timeview(context context, attributeset attrs, int defstyle) {         super(context, attrs, defstyle);         settimeview(context, attrs);     }      public void settimeview(context c, attributeset attrs) {         typedarray a;         if (attrs != null) {             = c.gettheme().obtainstyledattributes(                     attrs,                     r.styleable.blprogress,                     0, 0);         } else {             throw new illegalargumentexception("must have pass attributes");         }           try {             titletext = a.getstring(r.styleable.timeview_text);             color = a.getboolean(r.styleable.timeview_setcolor, false);         } {             a.recycle();         }          simpledateformat sdf = new simpledateformat("hh.mm aa");         string time = sdf.format(calendar.getinstance().gettime());         if (this.titletext != null) {             settext(this.titletext + " " + time);         } else             settext(time);          decorate();      }      public void decorate() {         if (color) {             setshadowlayer(4, 2, 2, color.rgb(250, 00, 250));             setbackgroundcolor(color.cyan);         } else {             setbackgroundcolor(color.red);         }     } } 

here screen shot ..