android - How to make dialog look same in all versions from 2.2 to 4.4 and also in all tablets -

how make dialog same in versions 2.2 4.4 , in tablets.i had created dialog perfect in 4.2 , want same dialog in 2.3 also.how make dialog same in versions 2.2 4.4 , in tablets.i had created dialog perfect in 4.2 , want same dialog in 2.3 also.

public class mainactivity extends activity { private context context; private textview textview; private dialog dialog;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     context = mainactivity.this;     alertdialog.builder alertdialog = new alertdialog.builder(             mainactivity.this);     layoutinflater inflater = mainactivity.this.getlayoutinflater();     alertdialog.setview(inflater.inflate(r.layout.dialog_textview, null));        // setting positive "yes" button     alertdialog.setpositivebutton("call",             new dialoginterface.onclicklistener() {                 public void onclick(dialoginterface dialog, int which) {                      // write code here invoke yes event                     if (deviceistablet(context)) { // if device                         // tablet                         if (isappinstalled("com.skype.raider")) {                             // insert want if device has                             // skype                             intent intent = new intent(                                     "android.intent.action.view");                             intent.setdata(uri.parse("skype:" + 123456789));                             startactivity(intent);                         } else {                             // connect play store or whatever                             startactivity(new intent(                                     intent.action_view,                                     uri.parse("http://play.google.com/store/apps/details?id=com.skype.raider")));                         }                     } else { // if device not tablet                         intent callintent = new intent(intent.action_call);                         callintent.setdata(uri.parse("tel:123456789"));                         startactivity(callintent);                     }                 }             });      // setting negative "no" button     alertdialog.setnegativebutton("cancel",             new dialoginterface.onclicklistener() {                 public void onclick(dialoginterface dialog, int which) {                     // write code here invoke no event                  }             });      // showing alert message     alertdialog.show();  }  // determine whether or no android device tablet or not public static boolean deviceistablet(context c) {     resources res = c.getresources();     return (res.getconfiguration().screenlayout & configuration.screenlayout_size_mask) >= configuration.screenlayout_size_large; }  private boolean isappinstalled(string apptocheck) {     packagemanager pm = getpackagemanager();     boolean isondevice = false;     try {         pm.getpackageinfo(apptocheck, packagemanager.get_activities);         isondevice = true;     } catch (packagemanager.namenotfoundexception exception) {         isondevice = false;     }     return isondevice; } 

}

check below links create custom dialog :

• custom dialog 1
• custom dialog 2
• custom dialog 3
• custom dialog 4

steps create custom dialog :

• create layout file (eg dialog.xml)
• reference dialog.xml class activity.
• bundle new layout file view of dialog box.
• display dialog.