Activity transition in Android

Question

How can I define the transition between two activities for Android 1.5 and later? I would like an activity to fade in.

Answer 1

Yes. You can tell the OS what kind of transition you want to have for your activity.

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    getWindow().setWindowAnimations(ANIMATION);

    ...

}

Where ANIMATION is an integer referring to a built in animation in the OS.

Answer 2

Here's the code to do a nice smooth fade between two Activities..

Create a file called fadein.xml in res/anim

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
   android:interpolator="@android:anim/accelerate_interpolator"
   android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="2000" />

Create a file called fadeout.xml in res/anim

<?xml version="1.0" encoding="utf-8"?>

<alpha xmlns:android="http://schemas.android.com/apk/res/android"
   android:interpolator="@android:anim/accelerate_interpolator"
   android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="2000" />

If you want to fade from Activity A to Activity B, put the following in the onCreate method for Activity B. Before setContentView works for me.

overridePendingTransition(R.anim.fadein, R.anim.fadeout);

If the fades are too slow for you, change android:duration in the xml files above to something smaller.

Answer 3

Before Starting your Intent:

ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(AlbumListActivity.this);
startActivity(intent, options.toBundle());

This gives Default Animation to your Activity Transition.

Answer 4

You cannot use overridePendingTransition in Android 1.5. overridePendingTransistion came to Android 2.0.

If you're gonna go through this without any error you have to compile for the target (1.5 or higher) using the ordinary animations (or you own) or you have to compile for the target (2.0 or higher) using overridePendingTransistion.

Summary: You cannot use overridePendingTransistion in Android 1.5.

You can though use the built-in animations in the OS.

Answer 5

zoom in out animation

Intent i = new Intent(getApplicationContext(), LoginActivity.class);
 overridePendingTransition(R.anim.zoom_enter, R.anim.zoom_exit);
startActivity(i);
finish();

zoom_enter

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:fromAlpha="0.0" android:toAlpha="1.0"
    android:duration="500" />

zoom_exit

<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:fromAlpha="1.0" android:toAlpha="0.0"
    android:fillAfter="true"
    android:duration="500" />

Answer 6

create res>anim>fadein.xml

<?xml version="1.0" encoding="utf-8"?>
    <alpha xmlns:android="http://schemas.android.com/apk/res/android"
       android:interpolator="@android:anim/accelerate_interpolator"
       android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="500" />

create res>anim>fadeout.xml

<?xml version="1.0" encoding="utf-8"?>
    <alpha xmlns:android="http://schemas.android.com/apk/res/android"
       android:interpolator="@android:anim/accelerate_interpolator"
       android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="500" />

In res>values>styles.xml

<style name="Fade">
        <item name="android:windowEnterAnimation">@anim/fadein</item>
        <item name="android:windowExitAnimation">@anim/fadeout</item>
    </style>

In activities onCreate()

getWindow().getAttributes().windowAnimations = R.style.Fade;