Frequently Used Methods and codes

FUM

/***************************************************************************************/
/****************************** Full Screen Theme **************************************/
/***************************************************************************************/

<style name="AppThemeFullScreen" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowContentOverlay">@null</item>
    </style>

/***************************************************************************************/
/*********************************** White Color Status Bar ****************************/
/***************************************************************************************/

Add in main theme v-23

<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
<item name="android:windowLightStatusBar">true</item>

/***************************************************************************************/
/********************* Fragment Transactions / Change Fragment *************************/
/***************************************************************************************/

 fun changeFragment(fragment: Fragment, title: String?, args: Bundle?, add: Boolean) {
        val ft: FragmentTransaction
        ft = if (add) {
            supportFragmentManager.beginTransaction().addToBackStack(title)
        } else supportFragmentManager.beginTransaction()
        if (args != null) fragment.setArguments(args)
        ft.replace(R.id.content, fragment).commit()
        tvTitle.text = title
    }
    
/******************************************************************************/
/******************Change Navigation drawer icon color*************************/
/******************************************************************************/

  <style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
        <item name="color">@android:color/white</item>
  </style>
  //Add it in main theme
   <item name="drawerArrowStyle">@style/DrawerArrowStyle</item>
  
/******************************************************************************/
/******************************Logout Dialog***********************************/
/******************************************************************************/
new AlertDialog.Builder(activity).setTitle("Confirm").setMessage("Are you sure you want to logout?")
                    .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub
                            storeUserData.clearData(activity);
                            startActivity(new Intent(activity, LoginActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK));
                        }
                    })
                    .setNegativeButton("No", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub

                        }
                    }).show();
                    
                    
                    
/******************************************************************************/
/******************************printHashKey for facebook***********************/
/******************************************************************************/                    
  public void printHashKey(Context pContext) {
        try {
            PackageInfo info = getPackageManager().getPackageInfo(getPackageName(), PackageManager.GET_SIGNATURES);
            for (Signature signature : info.signatures) {
                MessageDigest md = MessageDigest.getInstance("SHA");
                md.update(signature.toByteArray());
                String hashKey = new String(Base64.encode(md.digest(), 0));
                Log.i("aaa", "printHashKey() Hash Key: " + hashKey);
            }
        } catch (NoSuchAlgorithmException e) {
            Log.e("", "printHashKey()", e);
        } catch (Exception e) {
            Log.e("", "printHashKey()", e);
        }
    }