user name and password was change to as per requirement

app/src/main/java/com/vsoft/uoflservicenow/utils/DialogUtils.java

 package com.vsoft.uoflservicenow.utils;
 
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.support.v7.app.AlertDialog;
 import android.view.ContextThemeWrapper;
 
 import com.vsoft.uoflservicenow.R;
 
 /**
- * Created by npadhy on 9/7/2016.
+ * Created by krishna on 9/7/2016.
  */
 public class DialogUtils {
-	private static AlertDialog alertDialog;
-
-
-	public static void showNoConnectionDialog(final Activity activity) {
-		try {
-			activity.runOnUiThread(new Runnable() {
-
-				@Override
-				public void run() {
-					if (alertDialog == null) {
-						AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
-								new ContextThemeWrapper(activity,
-										android.R.style.Theme_Holo));
-						alertDialogBuilder.setTitle(activity
-								.getString(R.string.connection_alert_dialog_title));
-						alertDialogBuilder
-								.setMessage(R.string.connection_alert_dialog_message)
-								.setCancelable(true)
-								.setPositiveButton(
-										activity.getString(R.string.settings),
-										new DialogInterface.OnClickListener() {
-											@Override
-											public void onClick(
-													DialogInterface dialog,
-													int id) {
-												activity
-														.startActivity(new Intent(
-																android.provider.Settings.ACTION_SETTINGS));
-												alertDialog = null;
-											}
-										})
-								.setNegativeButton(
-										activity.getString(R.string.cancel),
-										new DialogInterface.OnClickListener() {
-											@Override
-											public void onClick(
-													DialogInterface dialog,
-													int which) {
-												alertDialog = null;
-											}
-										});
-						alertDialog = alertDialogBuilder.create();
-						alertDialog.show();
-					}
-				}
-			});
-
-		} catch (Exception e) {
-		}
-	}
+    public static void showNoConnectionDialog(final Activity activity) {
+        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
+                new ContextThemeWrapper(activity,
+                        android.R.style.Theme_Holo));
+        alertDialogBuilder.setTitle(activity
+                .getString(R.string.connection_alert_dialog_title));
+        alertDialogBuilder
+                .setMessage(R.string.connection_alert_dialog_message)
+                .setCancelable(true)
+                .setPositiveButton(
+                        activity.getString(R.string.settings),
+                        new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(
+                                    DialogInterface dialog,
+                                    int id) {
+                                activity.startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
+                            }
+                        })
+                .setNegativeButton(
+                        activity.getString(R.string.cancel),
+                        new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog,int which) {
+                            }
+                        });
+        AlertDialog alertDialog = alertDialogBuilder.create();
+        alertDialog.show();
+    }
 }

app/src/main/res/layout/activity_login.xml

@@ -35,7 +35,6 @@
                     android:layout_marginLeft="20dp"
                     android:layout_marginRight="20dp"
                     android:padding="10dp"
-                    android:text=""
                     android:drawableLeft="@mipmap/ic_user_icon"
                     android:singleLine="true" />
                 <EditText
@@ -47,7 +46,6 @@
                     android:drawableLeft="@mipmap/ic_password_icon"
                     android:inputType="textPassword"
                     android:padding="10dp"
-                    android:text=""
                     android:layout_marginLeft="20dp"
                     android:layout_marginRight="20dp"
                     android:singleLine="true" />
@@ -68,6 +66,19 @@
                     android:text="@string/login_screen_login_string"
                     android:textAlignment="center" />
 
+                <TextView
+                    android:id="@+id/errormessage"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="10dp"
+                    android:layout_marginBottom="10dp"
+                    android:textColor="@color/error_color"
+                    android:textSize="@dimen/small_text_size"
+                    android:text=""
+                    android:gravity="center"
+                    android:visibility="gone"
+                    android:layout_gravity="center_horizontal"
+                     />
             </LinearLayout>
         </LinearLayout>
     </ScrollView>

app/src/main/res/layout/home_screen_adapter.xml

@@ -7,8 +7,10 @@
     android:layout_marginBottom="10dp"
     card_view:cardBackgroundColor="@color/item_gb_color"
     card_view:cardCornerRadius="8dp"
-    card_view:cardElevation="3sp"
-    card_view:cardUseCompatPadding="true">
+    card_view:cardElevation="10dp"
+    card_view:cardUseCompatPadding="true"
+
+    >
 
     <RelativeLayout
         android:layout_width="match_parent"

app/src/main/res/values/strings.xml

@@ -25,8 +25,8 @@
 	<string name="rejected">Rejected</string>
 
 
-	<string name="user_error">Please Enter UserName</string>
-	<string name="pasw_error">Please Enter Password</string>
+	<string name="user_error">Please enter username</string>
+	<string name="pasw_error">Please enter password</string>
 
 	<string name="date_string">%1$s %2$s, %3$s</string>
 	<string name="date_and_time_string"> %1$s:%2$s</string>