feat: using RxBus listen to taps and show the tap text event

Kaushik Gopal · Kaushik Gopal · commit 3e0ec1b2701f · 2014-12-24T15:30:25.000-08:00
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
@@ -7,6 +7,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
@@ -29,4 +30,11 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     super.onActivityCreated(savedInstanceState);
     _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
   }
+
+  @OnClick(R.id.btn_demo_rxbus_tap)
+  public void onTapButtonClicked() {
+    _rxBus.send(new TapEvent());
+  }
+
+  public static class TapEvent {}
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -3,17 +3,28 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.support.v4.view.ViewCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 import butterknife.ButterKnife;
+import butterknife.InjectView;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
+import rx.Subscription;
+import rx.android.observables.AndroidObservable;
+import rx.functions.Action1;
+
+import static com.morihacky.android.rxjava.rxbus.RxBusFrag1.TapEvent;
 
 public class RxBusFrag2
     extends Fragment {
 
   private RxBus _rxBus;
+  private Subscription _subscription;
+
+  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
 
   @Override
   public View onCreateView(LayoutInflater inflater,
@@ -29,4 +40,41 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     super.onActivityCreated(savedInstanceState);
     _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
   }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    AndroidObservable.bindFragment(this, _rxBus.toObserverable()).subscribe(new Action1<Object>() {
+      @Override
+      public void call(Object event) {
+        if (event instanceof TapEvent) {
+          _showTapText();
+        }
+      }
+    });
+  }
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setScaleX(1f);
+    _tapEventTxtShow.setScaleY(1f);
+
+    ViewCompat.animate(_tapEventTxtShow)
+        .scaleX(0f)
+        .scaleY(0f)
+        .setDuration(400)
+        /*.withEndAction(new Runnable() {
+          @Override
+          public void run() {
+            _tapEventTxtShow.setVisibility(View.INVISIBLE);
+            _tapEventTxtShow.setAlpha(1f);
+          }
+        })*/;
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _subscription.unsubscribe();
+  }
 }
diff --git a/app/src/main/res/layout/fragment_rxbus_frag1.xml b/app/src/main/res/layout/fragment_rxbus_frag1.xml
@@ -13,6 +13,7 @@
         android:text="@string/msg_demo_rxbus_1"/>
 
     <Button
+        android:id="@+id/btn_demo_rxbus_tap"
         android:background="@drawable/btn_round"
         android:layout_height="90dp"
         android:layout_width="90dp"
diff --git a/app/src/main/res/layout/fragment_rxbus_frag2.xml b/app/src/main/res/layout/fragment_rxbus_frag2.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout
+    android:background="@color/blue"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    android:background="@color/blue"
     xmlns:android="http://schemas.android.com/apk/res/android">
 
     <TextView
@@ -13,4 +13,14 @@
         android:textSize="@dimen/text_xxlarge"
         android:textColor="@android:color/white"
         android:text="1"/>
+
+    <TextView
+        android:id="@+id/demo_rxbus_tap_txt"
+        android:visibility="invisible"
+        android:layout_gravity="bottom|center_horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        android:textColor="@android:color/white"
+        android:text="tap!"/>
 </FrameLayout>
