AppIntroAnimation is an library to make cool intro screen for your app with special Image Translation and Transformation animation effects. It is very easy to use, highly customizable without adding third party library integrations.

Demo I	Demo II

Demo I Enable private boolean isSliderAnimation = false; in MainActivity.java to apply this background pager transformation animation with Image translation effect..

Demo II Enable private boolean isSliderAnimation = true; in MainActivity.java to apply this background pager transformation animation without Image translation effect..

STEP 1:

Download the code and open arrays.xml.

<?xml version="1.0" encoding="utf-8"?>
<array name="landing_bg">
    <item>@color/light_green</item>
    <item>@color/light_purple</item>
    <item>@color/light_orange</item>
    <item>@color/light_cyan</item>
</array>

<array name="icons">
    <item>@drawable/email</item>
    <item>@drawable/calendar</item>
    <item>@drawable/shopping</item>
    <item>@drawable/socialnetwork</item>
</array>

<string-array name="titles" >
    <item>@string/email</item>
    <item>@string/calender</item>
    <item>@string/shopping</item>
    <item>@string/social_network</item>
</string-array>

<string-array name="hints" >
    <item>@string/email_hint</item>
    <item>@string/calender_hint</item>
    <item>@string/shopping_hint</item>
    <item>@string/social_network_hint</item>
</string-array>

Here I have added 4 slides with images, titles and title hints as an example. You can update your png's, text content in above arrays.xml as per the project requirement.

Note: The array count of images, titles and title hints should be of same count to avoid IndexBoundException.

STEP 2:

Place all your images that are to be used for making AppIntro's into the app drawable folders. To get exact output for multiple resolution and sizes, add scaled images seperately for drawable-xxxhdpi, drawable-xxhdpi, drawable-xhdpi, drawable-hdpi, drawable-mdpi etc., and fix the height and width of ImageView in viewpager_item.xml

To customize pager attributes like indicator stroke size, stroke color, solid color, solid size, solid color, selected color and unselected color, please open vpi_defaults.xml and customize as per your wish.

Following are the attributes that I have used in the project demo.

<resources>
    <bool name="default_circle_indicator_centered">true</bool> 
    <color name="default_circle_indicator_fill_color">#FFFFFFFF</color>  <!--change fill color-->
    <color name="default_circle_indicator_page_color">#40FFFFFF</color>  <!--change indicator un selected fill color-->
    <integer name="default_circle_indicator_orientation">0</integer> 
    <dimen name="default_circle_indicator_radius">3dp</dimen> <!--change radius of the circle-->
    <bool name="default_circle_indicator_snap">false</bool> 
    <color name="default_circle_indicator_stroke_color">#40FFFFFF</color> <!--change stroke color-->
    <dimen name="default_circle_indicator_stroke_width">1dp</dimen> <!--change stroke width-->
</resources>

The app which inspired me to create these repos

• Background color transformation animation used in Google Inbox intro screen.
• Image translation animation used in Duolingo intro screen.