Show a button to disconnect the VPN once it is established

src/frontends/android/res/layout/vpn_state_fragment.xml

@@ -72,6 +72,17 @@
         </TextView>
     </GridLayout>
 
+    <Button
+        android:id="@+id/action"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="10dp"
+        android:layout_marginLeft="20dp"
+        android:layout_marginRight="20dp"
+        android:text="@string/disconnect"
+        style="?android:attr/borderlessButtonStyle" >
+    </Button>
+
     <View
         android:layout_width="match_parent"
         android:layout_height="2dp"

src/frontends/android/res/values/strings.xml

@@ -53,6 +53,7 @@
     <!-- VPN state fragment -->
     <string name="state_label">Status:</string>
     <string name="profile_label">Profile:</string>
+    <string name="disconnect">Disconnect</string>
     <string name="state_connecting">Connecting&#8230;</string>
     <string name="state_connected">Connected</string>
     <string name="state_disconnecting">Disconnecting&#8230;</string>

src/frontends/android/src/org/strongswan/android/ui/VpnStateFragment.java

@@ -36,7 +36,9 @@ import android.os.Bundle;
 import android.os.IBinder;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.widget.Button;
 import android.widget.TextView;
 
 public class VpnStateFragment extends Fragment implements VpnStateListener
@@ -45,6 +47,7 @@ public class VpnStateFragment extends Fragment implements VpnStateListener
 	private TextView mProfileView;
 	private TextView mStateView;
 	private int stateBaseColor;
+	private Button mActionButton;
 	private ProgressDialog mProgressDialog;
 	private State mState;
 	private VpnStateService mService;
@@ -81,6 +84,19 @@ public class VpnStateFragment extends Fragment implements VpnStateListener
 	{
 		View view = inflater.inflate(R.layout.vpn_state_fragment, null);
 
+		mActionButton = (Button)view.findViewById(R.id.action);
+		mActionButton.setOnClickListener(new OnClickListener() {
+			@Override
+			public void onClick(View v)
+			{
+				if (mService != null)
+				{
+					mService.disconnect();
+				}
+			}
+		});
+		enableActionButton(false);
+
 		mStateView = (TextView)view.findViewById(R.id.vpn_state);
 		stateBaseColor = mStateView.getCurrentTextColor();
 		mProfileView = (TextView)view.findViewById(R.id.vpn_profile_label);
@@ -144,6 +160,7 @@ public class VpnStateFragment extends Fragment implements VpnStateListener
 		}
 
 		hideProgressDialog();
+		enableActionButton(false);
 		mProfileNameView.setText(name);
 		mState = state;
 
@@ -162,6 +179,7 @@ public class VpnStateFragment extends Fragment implements VpnStateListener
 				break;
 			case CONNECTED:
 				showProfile(true);
+				enableActionButton(true);
 				mStateView.setText(R.string.state_connected);
 				mStateView.setTextColor(Color.GREEN);
 				break;
@@ -180,6 +198,12 @@ public class VpnStateFragment extends Fragment implements VpnStateListener
 		mProfileNameView.setVisibility(show ? View.VISIBLE : View.GONE);
 	}
 
+	private void enableActionButton(boolean enable)
+	{
+		mActionButton.setEnabled(enable);
+		mActionButton.setVisibility(enable ? View.VISIBLE : View.GONE);
+	}
+
 	private void hideProgressDialog()
 	{
 		if (mProgressDialog != null)