Service implementation

calculatorpp-service/src/main/java/org/solovyev/android/calculator/CalculationServiceImpl.java

@@ -12,11 +12,14 @@ import org.jetbrains.annotations.NotNull;
  * Date: 3/5/12
  * Time: 10:23 PM
  */
-public class CalculationService extends Service {
+public class CalculationServiceImpl extends Service implements ICalculationService {
 
     @NotNull
     private ServiceHandler handler;
 
+    public CalculationServiceImpl() {
+    }
+
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
         Toast.makeText(this, ".CalculationService.onStartCommand", Toast.LENGTH_SHORT).show();
@@ -56,7 +59,7 @@ public class CalculationService extends Service {
 
     @Override
     public IBinder onBind(Intent intent) {
-        return null;
+        return new LocalBinder<ICalculationService>(this);
     }
 
     private final class ServiceHandler extends Handler {
@@ -67,7 +70,7 @@ public class CalculationService extends Service {
 
         @Override
         public void handleMessage(@NotNull Message msg) {
-            Toast.makeText(CalculationService.this, "Doing job!", Toast.LENGTH_SHORT).show();
+            Toast.makeText(CalculationServiceImpl.this, "Doing job!", Toast.LENGTH_SHORT).show();
             stopSelf(msg.arg1);
         }
     }

calculatorpp-service/src/main/java/org/solovyev/android/calculator/ICalculationService.java

@@ -0,0 +1,9 @@
+package org.solovyev.android.calculator;
+
+/**
+ * User: serso
+ * Date: 3/5/12
+ * Time: 10:23 PM
+ */
+public interface ICalculationService {
+}

calculatorpp-service/src/main/java/org/solovyev/android/calculator/LocalBinder.java

@@ -0,0 +1,33 @@
+package org.solovyev.android.calculator;
+
+import android.os.Binder;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.ref.WeakReference;
+
+/**
+ * A generic implementation of Binder to be used for local services
+ *
+ * @param <S> The type of the service being bound
+ * @author Geoff Bruckner  12th December 2009
+ */
+
+public class LocalBinder<S> extends Binder {
+
+    @NotNull
+    private static String TAG = "LocalBinder";
+
+    @NotNull
+    private WeakReference<S> serviceReference;
+
+
+    public LocalBinder(@NotNull S service) {
+        serviceReference = new WeakReference<S>(service);
+    }
+
+    @Nullable
+    public S getService() {
+        return serviceReference.get();
+    }
+}

calculatorpp/AndroidManifest.xml

@@ -19,7 +19,7 @@
 
 		</activity>
         
-        <service android:name="org.solovyev.android.calculator.CalculationService"/>
+        <service android:name=".CalculationServiceImpl"/>
 
 		<!--NOTE: a:configChanges="orientation|keyboardHidden" is needed to correct work of dialog windows (not to close them on orientation change) -->
 		<activity android:configChanges="orientation|keyboardHidden" android:label="@string/c_app_settings" android:name=".CalculatorPreferencesActivity"/>

calculatorpp/project.properties

@@ -11,3 +11,4 @@
 target=android-15
 android.library.reference.1=../calculatorpp-service
 android.library.reference.2=gen-external-apklibs/org.solovyev.android_common_0.1
+

calculatorpp/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java

@@ -7,9 +7,10 @@ package org.solovyev.android.calculator;
 
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.content.SharedPreferences;
+import android.content.*;
 import android.content.res.Configuration;
 import android.os.Bundle;
+import android.os.IBinder;
 import android.os.Vibrator;
 import android.preference.PreferenceManager;
 import android.text.ClipboardManager;
@@ -53,13 +54,27 @@ import org.solovyev.common.utils.history.HistoryAction;
 import java.text.DecimalFormatSymbols;
 import java.util.Locale;
 
-public class CalculatorActivity extends Activity implements FontSizeAdjuster, SharedPreferences.OnSharedPreferenceChangeListener {
+public class CalculatorActivity extends Activity implements FontSizeAdjuster, SharedPreferences.OnSharedPreferenceChangeListener, ServiceConnection {
 
 	private static final int HVGA_WIDTH_PIXELS = 320;
 
 	@Nullable
 	private IBillingObserver billingObserver;
 
+    @Nullable
+    private ICalculationService calculationService;
+
+    @Override
+    public void onServiceConnected(ComponentName componentName, IBinder binder) {
+        if (binder instanceof LocalBinder) {
+            calculationService = (ICalculationService)((LocalBinder) binder).getService();
+        }
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName componentName) {
+    }
+
     public static enum Theme {
 
 		default_theme(ThemeType.other, R.style.default_theme),
@@ -188,6 +203,8 @@ public class CalculatorActivity extends Activity implements FontSizeAdjuster, Sh
 		super.onCreate(savedInstanceState);
 		setLayout(preferences);
 
+        bindService(new Intent(this, CalculationServiceImpl.class), this, Context.BIND_AUTO_CREATE);
+
 		if (customTitleSupported) {
 			try {
 				getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.calc_title);