Running a Android Application in Full Screen Mode

In order to run the application in full screen mode you should add the following code to your activity.
getWindow().setFlags(WindowManager.LayoutParams.NO_STATUS_BAR_FLAG,
                   WindowManager.LayoutParams.NO_STATUS_BAR_FLAG); 

How to Check the Existence of SD Card in Android

The below method returns true if the sd card is present on the mobile else it returns false.
public static boolean isSdPresent()
{                
      return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);        }

Code Sample to Create Custom Dialog in Android

I provided a sample of android code to create a custom dialog in android. Save the code in different java and xml files as given below before running the code:

 

cdialog.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="200dip"
  android:orientation="vertical"
  android:padding="5dip"
  android:layout_height="fill_parent">
 
  <TextView
      android:layout_width="fill_parent"
      android:text="Dialog Title"
      android:gravity="center_vertical"
      android:layout_height="20dip">
  </TextView>
 
  <TextView
      android:layout_width="fill_parent"
      android:layout_marginTop="5dip"
      android:background="#FFFFFF"
      android:layout_height="0.5sp">
  </TextView>
 
  <TextView
      android:layout_width="fill_parent"
      android:text="Dialog Message"
      android:gravity="center_vertical"
      android:layout_height="50dip">
  </TextView>
 
  <Button
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="OK"
      android:id="@+id/btnOk"
      android:layout_gravity="center">
  </Button>
 
</LinearLayout>

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
  
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/btnDialog"
        android:text="ShowDialog">
    </Button>

</LinearLayout>


CustomDialog.java:
package com.customdialog.home;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.Window;

public class CustomDialog extends Dialog
{

    public CustomDialog(Context context)
    {
        super(context);
    }
   
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.cdialog);
    }
}

Home.java:
package com.customdialog.home;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class Home extends Activity
{
    /** Called when the activity is first created. */
    Button btnClick;
    CustomDialog cd;
    @Override   
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        btnClick = (Button)findViewById(R.id.btnDialog);
        btnClick.setOnClickListener(new OnClickListener()
        {           
            @Override
            public void onClick(View arg0)
            {
                cd = new CustomDialog(Home.this);
                cd.show();
               
                Button btnDimiss = (Button)cd.findViewById(R.id.btnOk);
                btnDimiss.setOnClickListener(new OnClickListener()
                {                   
                    @Override
                    public void onClick(View arg0)
                    {
                        cd.dismiss();   
                    }
                });

            }
        });
    }
}

 

Output: