some minor changes

Author: amar

app/src/main/java/amar/im/cryptoapp/MainActivity.java

@@ -11,6 +11,7 @@
 import android.widget.EditText;
 import android.widget.RadioGroup;
 import android.widget.TextView;
+import android.widget.Toast;
 
 public class MainActivity extends AppCompatActivity {
     public static final String TAG = "CryptoTest";
@@ -87,7 +88,9 @@ public boolean onCreateOptionsMenu(Menu menu) {
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-//            case R.id.action_settings:
+            case R.id.action_settings:
+                showToast("Yet to be done!!");
+                return true;
 
             case R.id.action_about:
                 // popup for some info
@@ -104,4 +107,10 @@ public boolean onOptionsItemSelected(MenuItem item) {
 
         return super.onOptionsItemSelected(item);
     }
+
+    private void showToast(String msg) {
+        if (!isFinishing() && null != this) {
+            Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
+        }
+    }
 }

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

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:padding="30dp"
+    android:orientation="vertical">
+
+    <TextView
+        android:layout_gravity="center_horizontal"
+        android:textSize="17sp"
+        android:text="@string/about_desc"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+    <Button
+        android:layout_gravity="center_horizontal"
+        android:text="Dismiss"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+</LinearLayout>

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

@@ -2,4 +2,8 @@
     <string name="app_name">Simple Crypto</string>
     <string name="response_text">Output is shown below: </string>
     <string name="action_settings">Settings</string>
+    <string name="about_desc">A simple crypto app that just uses Base64 encoding and AES to demonstrate encryption
+        and decryption using a key.\n\n\nIt\'s essentially a work not in progress. The code can be found below:
+        \n\n\n<a href="https://github.com/amarendra/CryptoApp">github.com/amarendra/CryptoApp</a>\n\n\n
+        Use this app in any way way you want. There are no restrictions.</string>
 </resources>