Swipe to Slide animated activity switching

Last post show how to detect Swipe to start another activity. In this post, animation of Slide-in/Slide-out are added in switching activity.


Create xml files of animation in /res/anim/ folder.

/res/anim/slide_left_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="500"
        android:fromXDelta="100%p"
        android:toXDelta="0" />

</set>

/res/anim/slide_left_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="500"
        android:fromXDelta="0"
        android:toXDelta="-100%p" />

</set>

/res/anim/slide_right_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="500"
        android:fromXDelta="0"
        android:toXDelta="100%p" />

</set>

/res/anim/slide_right_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="500"
        android:fromXDelta="-100%p"
        android:toXDelta="0" />

</set>

Modify onFling() of MyGestureListener of MainActivity.java in last post, to call overridePendingTransition() after startActivity().

        @Override
        public boolean onFling(MotionEvent event1, MotionEvent event2, 
                float velocityX, float velocityY) {
            
         /*
         Toast.makeText(getBaseContext(), 
          event1.toString() + "\n\n" +event2.toString(), 
          Toast.LENGTH_SHORT).show();
         */
         
         if(event2.getX() < event1.getX()){
          Toast.makeText(getBaseContext(), 
           "Swipe left - startActivity()", 
           Toast.LENGTH_SHORT).show();
          
          //switch another activity
             Intent intent = new Intent(
               MainActivity.this, SecondActivity.class);
             startActivity(intent);
             overridePendingTransition(R.anim.slide_left_in, R.anim.slide_left_out);
         }

            return true;
        }

Modify onFling() of My2ndGestureListener of SecondActivity.java in last post, to call overridePendingTransition() after finish().

        @Override
        public boolean onFling(MotionEvent event1, MotionEvent event2, 
                float velocityX, float velocityY) {
            
         /*
         Toast.makeText(getBaseContext(), 
          event1.toString() + "\n\n" +event2.toString(), 
          Toast.LENGTH_SHORT).show();
         */
         
         if(event2.getX() > event1.getX()){
          Toast.makeText(getBaseContext(), 
           "Swipe right - finish()", 
           Toast.LENGTH_SHORT).show();
          
          finish();
          overridePendingTransition(R.anim.slide_right_in, R.anim.slide_right_out);
         }

            return true;
        }

For /res/layout/activity_main.xml and AndroidManifest.xml refer to last post.

Download the files.