Feature added: the default transition

doorbell/src/main/java/com/wujilin/doorbell/Doorbell.java

@@ -40,6 +40,11 @@ of this software and associated documentation files (the "Software"), to deal
  */
 public class Doorbell {
 
+  /**
+   * The default transition to override when launching activities
+   */
+  public static Transition defaultTransition;
+
   /**
    * The door
    */
@@ -176,6 +181,53 @@ public static void ring(Door door) {
     door.onBlock();
   }
 
+  /**
+   * Return the default transition to use for the incoming activity.
+   *
+   * @return The resource ID of the animation resource to use for the incoming activity.
+   */
+  public static int getDefaultEnter() {
+    return defaultTransition == null ? 0 : defaultTransition.getEnter();
+  }
+
+  /**
+   * Return the default transition to use for the outgoing activity.
+   *
+   * @return The resource ID of the animation resource to use for the outgoing activity.
+   */
+  public static int getDefaultExit() {
+    return defaultTransition == null ? 0 : defaultTransition.getExit();
+  }
+
+  /**
+   * Setup the default transition to override when launching the activities.
+   *
+   * @param transition The default transition
+   */
+  public static void defaultTransition(Transition transition) {
+    defaultTransition = transition;
+  }
+
+  /**
+   * Setup the default resource ID of the animation resource to use for the incoming/outgoing activity.
+   *
+   * @param enter The resource ID of the animation resource to use for the incoming activity.
+   * @param exit The resource ID of the animation resource to use for the outgoing activity.
+   */
+  public static void defaultTransition(final int enter, final int exit) {
+    defaultTransition = new Transition() {
+      @Override
+      public int getEnter() {
+        return enter;
+      }
+
+      @Override
+      public int getExit() {
+        return exit;
+      }
+    };
+  }
+
   /**
    * The builder class to build the doorbell.
    */

doorbell/src/main/java/com/wujilin/doorbell/Starter.java

@@ -35,7 +35,7 @@ of this software and associated documentation files (the "Software"), to deal
  * @see com.wujilin.doorbell.starter.ActivityStarter
  * @see com.wujilin.doorbell.starter.FragmentStarter
  */
-public interface Starter {
+public interface Starter extends Transition {
 
   /**
    * Starts the activity.

doorbell/src/main/java/com/wujilin/doorbell/impl/ActivityDoorbell.java

@@ -39,11 +39,10 @@ of this software and associated documentation files (the "Software"), to deal
 import com.wujilin.doorbell.Transition;
 
 import java.io.Serializable;
-import java.util.ArrayList;
 
-import static com.wujilin.doorbell.starter.Starters.newActivityStarter;
-import static com.wujilin.doorbell.starter.Starters.newContextStarter;
-import static com.wujilin.doorbell.starter.Starters.newFragmentStarter;
+import static com.wujilin.doorbell.starter.Starters.newStarter;
+import static com.wujilin.doorbell.starter.Starters.newStarter;
+import static com.wujilin.doorbell.starter.Starters.newStarter;
 import static com.wujilin.doorbell.util.Objects.requireNonNull;
 
 /**
@@ -67,7 +66,7 @@ public class ActivityDoorbell extends Doorbell {
   private int requestCode;
 
   /**
-   * The intent for strating activities
+   * The intent for starting activities
    */
   private Intent intent;
 
@@ -84,7 +83,7 @@ public class ActivityDoorbell extends Doorbell {
   /**
    * Constructs a new activity doorbell.
    *
-   * @param builder The builder to build the actvity doorbell
+   * @param builder The builder to build the activity doorbell
    */
   private ActivityDoorbell(final Builder builder) {
     super(builder);
@@ -123,15 +122,9 @@ protected void onAllow() {
       return;
     }
 
-    int enterId = 0;
-    int exitId  = 0;
-
-    // if the starter is a transition
-    if (starter instanceof Transition) {
-      Transition transition = (Transition) starter;
-      enterId = transition.getEnter();
-      exitId  = transition.getExit();
-    }
+    // get the transition of the starter
+    int enterId = starter.getEnter();
+    int exitId  = starter.getExit();
 
     // if the transition of the doorbell is given
     if (transition != null) {
@@ -183,7 +176,7 @@ public static class Builder extends Doorbell.Builder {
      * @param context The context to start activities
      */
     public Builder(Context context) {
-      this(newContextStarter(context));
+      this(newStarter(context));
     }
 
     /**
@@ -192,7 +185,7 @@ public Builder(Context context) {
      * @param activity The activity to start activities
      */
     public Builder(Activity activity) {
-      this(newActivityStarter(activity));
+      this(newStarter(activity));
     }
 
     /**
@@ -201,7 +194,7 @@ public Builder(Activity activity) {
      * @param fragment The fragment to start acitvities
      */
     public Builder(Fragment fragment) {
-      this(newFragmentStarter(fragment));
+      this(newStarter(fragment));
     }
 
     /**

doorbell/src/main/java/com/wujilin/doorbell/starter/AbstractStarter.java

@@ -0,0 +1,65 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2015 Belin Wu (http://wujilin.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+package com.wujilin.doorbell.starter;
+
+import com.wujilin.doorbell.Starter;
+import com.wujilin.doorbell.Transition;
+
+import static com.wujilin.doorbell.Doorbell.getDefaultEnter;
+import static com.wujilin.doorbell.Doorbell.getDefaultExit;
+
+/**
+ * The abstract implementation of the Starter interface.
+ */
+public abstract class AbstractStarter implements Starter {
+  private int enterId = getDefaultEnter();
+  private int exitId  = getDefaultExit();
+
+  public AbstractStarter() {
+
+  }
+
+  public AbstractStarter(Transition transition) {
+    if (transition == null) {
+      return;
+    }
+    this.enterId = transition.getEnter();
+    this.exitId  = transition.getExit();
+  }
+
+  public AbstractStarter(int enterId, int exitId) {
+    this.enterId = enterId;
+    this.exitId  = exitId;
+  }
+
+    @Override
+  public int getEnter() {
+    return enterId;
+  }
+
+  @Override
+  public int getExit() {
+    return exitId;
+  }
+}

doorbell/src/main/java/com/wujilin/doorbell/starter/ActivityStarter.java

@@ -28,14 +28,12 @@ of this software and associated documentation files (the "Software"), to deal
 import android.os.Bundle;
 import android.support.v4.app.ActivityCompat;
 
-import com.wujilin.doorbell.Starter;
-
 import java.lang.ref.WeakReference;
 
 /**
  * The activity starter to start activities.
  */
-class ActivityStarter implements Starter {
+class ActivityStarter extends AbstractStarter {
 
   /**
    * The weak reference to the activity.

doorbell/src/main/java/com/wujilin/doorbell/starter/ContextStarter.java

@@ -30,8 +30,6 @@ of this software and associated documentation files (the "Software"), to deal
 import android.os.Bundle;
 import android.support.v4.app.ActivityCompat;
 
-import com.wujilin.doorbell.Starter;
-
 import java.lang.ref.WeakReference;
 
 import static android.os.Build.VERSION.SDK_INT;
@@ -40,7 +38,7 @@ of this software and associated documentation files (the "Software"), to deal
 /**
  * The context starter to start activities.
  */
-class ContextStarter implements Starter {
+class ContextStarter extends AbstractStarter {
 
   /**
    * The weak reference to the context.

doorbell/src/main/java/com/wujilin/doorbell/starter/FragmentStarter.java

@@ -28,14 +28,12 @@ of this software and associated documentation files (the "Software"), to deal
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 
-import com.wujilin.doorbell.Starter;
-
 import java.lang.ref.WeakReference;
 
 /**
  * The fragment starter to start activities.
  */
-class FragmentStarter implements Starter {
+class FragmentStarter extends AbstractStarter {
   /**
    * The weak refrence to the fragment.
    */

doorbell/src/main/java/com/wujilin/doorbell/starter/Starters.java

@@ -46,7 +46,7 @@ private Starters() {
    * @param context The context to start activities
    * @return The context starter or null if context is null
    */
-  public static Starter newContextStarter(Context context) {
+  public static Starter newStarter(Context context) {
     if (context == null) {
       return null;
     }
@@ -62,7 +62,7 @@ public static Starter newContextStarter(Context context) {
    * @param activity The activity to start activities
    * @return The activity starter or null if context is null
    */
-  public static Starter newActivityStarter(Activity activity) {
+  public static Starter newStarter(Activity activity) {
     if (activity == null) {
       return null;
     }
@@ -76,9 +76,9 @@ public static Starter newActivityStarter(Activity activity) {
    * Creates a new fragment starter.
    *
    * @param fragment The fragment to start activities
-   * @return The fragment starter or null if fragmetn is null
+   * @return The fragment starter or null if fragment is null
    */
-  public static Starter newFragmentStarter(Fragment fragment) {
+  public static Starter newStarter(Fragment fragment) {
     if (fragment == null) {
       return null;
     }

doorbell/src/main/res/anim/app_navigtor_pop_right_in.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set
+  xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate android:duration="200" android:fromXDelta="-100.0%p" android:toXDelta="0.0" />
+    <alpha android:duration="200" android:fromAlpha="0.1" android:toAlpha="1.0" />
+</set>

doorbell/src/main/res/anim/app_navigtor_pop_right_out.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set
+  xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate android:duration="200" android:fromXDelta="0.0" android:toXDelta="100.0%p" />
+    <alpha android:duration="200" android:fromAlpha="1.0" android:toAlpha="0.1" />
+</set>

doorbell/src/main/res/anim/app_push_left_in.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate android:duration="200" android:fromXDelta="100.0%p" android:toXDelta="0.0" />
+    <alpha android:duration="200" android:fromAlpha="0.1" android:toAlpha="1.0" />
+</set>

doorbell/src/main/res/anim/app_push_left_out.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate android:duration="200" android:fromXDelta="0.0" android:toXDelta="-100.0%p" />
+    <alpha android:duration="200" android:fromAlpha="1.0" android:toAlpha="0.1" />
+</set>