create action bar menu with share and about dialog

}
@Override
public boolean onCreateOptionsMenu(Menu menu){

menu.add("About").setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);

menu.add("Share").setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);

return true;
}

@Override
public boolean onOptionsItemSelected(final MenuItem item) {
switch (item.getTitle().toString()) {
//here is about click action
//it will show alert dialog

case "About":
final AlertDialog dialog = new AlertDialog.Builder(MainActivity.this).create();
LayoutInflater inflater = getLayoutInflater();

View convertView = (View) inflater.inflate(R.layout.about, null);
dialog.setView(convertView);

dialog.show();
return true;

//here share click action

case "Share":
String apk = "";
String uri = (getPackageName());

try {
android.content.pm.PackageInfo pi = getPackageManager().getPackageInfo(uri, android.content.pm.PackageManager.GET_ACTIVITIES);

apk = pi.applicationInfo.publicSourceDir;
} catch (Exception e) {
showMessage(e.toString());
}
Intent iten = new Intent(Intent.ACTION_SEND);
iten.setType("*/*");
iten.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new java.io.File(apk)));

startActivity(Intent.createChooser(iten, "Send APK"));
return true;
default:
return super.onOptionsItemSelected(item);
}