What is the best way to implement fade-in and fade-out animations on Android?

Question

I have a few controls that I don't want the user to see all the time, so they need to:

• Fade out 5 seconds after activity is created
• Fade in when user taps the screen
• Fade out after 5 seconds of visibility or when user taps screen again (whichever comes first)

I've seen a lot of implementations of animations out there (including Thread, Handler, and Animation). Which method would work best in this situation?

Answer 1

Use following code for fade in and fade out.

fade_in.xml

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

    <alpha
        android:duration="1000"
        android:fromAlpha="0.0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toAlpha="1.0" />

</set>

fade_out.xml

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

    <alpha
        android:duration="1000"
        android:fromAlpha="1.0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toAlpha="0.0" />

</set>

happy coding !!