Mr. Bipin S. Rupadiya

package com.bipinrupadiya.charachterpickerdemo;

import android.app.Activity;
import android.os.Bundle;
import android.text.method.CharacterPickerDialog;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

private CharacterPickerDialog CPD = null;
String chrOptions = "0123456789";

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText t = (EditText) findViewById(R.id.editText1);
Button button = (Button) this.findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
CPD.setTitle("Select Charecter");
CPD.show();

}
});

CPD = new CharacterPickerDialog(this, new View(this), null, chrOptions,
true) {
public void onClick(View v) {

String c = "";
c = ((Button) v).getText().toString();
Toast.makeText(getApplicationContext(), "" + c,
Toast.LENGTH_SHORT).show();

t.setText(t.getText().toString() + c);
dismiss();
}

};
}
}

<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"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="142dp"
        android:text="Button" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="55dp"
        android:ems="10" >

        <requestFocus />
    </EditText>

</RelativeLayout>