Android ShortCuts

1. How to get Phone Number.

TelephonyManager telephonyManager =     TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String phoneNumber = telephonyManager.getLine1Number();  

 // Make sure you are requesting the correct permission in your manifest.

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

NOTE:it's working not All time some times not display any number.


2.How to Make Static Rotation/orientation in Android.

//  if you want to lock screen for always Portrait mode  
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

//  if you want to lock screen for always Landscape mode  
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);


3. How to Create Alert Dialog Box in Android.


 AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("App has been started..")
               .setCancelable(false)
               .setTitle("Alert Box")           
               .setNegativeButton("OK", new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                   }
               });
        AlertDialog alert = builder.create();
        alert.show();

4.Array list value Strore in Another Arraylist

      private void AddDataToDB() {
ArrayList<DOBInfo> album_array = new ArrayList<DOBInfo>();

for (int i=0; i < album_array.size(); i++ ) {
DOBInfo value = album_array.get(i);

if(i<10) {
Log.i(TAG, " Added " +i);
database.createContact(value.getName(), value.getDays(), value.getDob(),    value.getImg());
}
}
}