new MaterialIntroView.Builder(this)
                .enableDotAnimation(true)
				.enableIcon(false)
                .setFocusGravity(FocusGravity.CENTER)
                .setFocusType(Focus.MINIMUM)
                .setDelayMillis(500)
                .enableFadeAnimation(true)
                .performClick(true)
                .setInfoText("Hi There! Click this card and see what happens.")
                .setShape(ShapeType.CIRCLE)
                .setTarget(view)
                .setUsageId("intro_card") //THIS SHOULD BE UNIQUE ID
                .show();

.setMaskColor(Color.Blue) 

.setDelayMillis(3000) //starts after 3 seconds passed

.enableFadeAnimation(true) //View will appear/disappear with fade in/out animation

//ie. If your button's width has MATCH_PARENT.
//Focus.ALL is not a good option. You can use
//Focus.MINIMUM or Focus.NORMAL. See demos below.
.setFocusType(Focus.MINIMUM)
.setFocusType(Focus.NORMAL)
.setFocusType(Focus.ALL)

//ie. You can focus on left of RecyclerView list item.
.setFocusGravity(FocusGravity.LEFT)
.setFocusGravity(FocusGravity.CENTER)
.setFocusGravity(FocusGravity.RIGHT)
//START and END follow the layout direction (RTL aware)
.setFocusGravity(FocusGravity.START)
.setFocusGravity(FocusGravity.END)

.setTarget(myButton) //Focus on myButton

.setTargetPadding(30) //add 30px padding to focus circle

.setInfoText("This is info text!") //Setting text will enable info dialog

.setTextColor(Color.Black) //Info dialog's text color is set to black

.setInfoText(R.string.intro_text) //String resources are supported too

.setInfoTextSize(30) //Change text size

.setInfoCardBackgroundColor(Color.DKGRAY) //Info card color, white by default
.setIconTint(Color.WHITE) //Tint the info card icon
.setIcon(R.drawable.ic_lightbulb) //Replace the default icon

.setShape(ShapeType.CIRCLE) //Change shape of focus area
.setShape(ShapeType.RECTANGLE) //Change shape of focus area
.setRectCornerRadius(0) //Corner radius of the rectangle in px, defaults to the target padding

.setCustomShape(Shape shape) //Use custom shape

// Allow this showcase overlay to only show up once. Prevents multiple screens from showing at the same time.
// Useful if you wish to show a tour step in a code that gets called multiple times
.setIdempotent(true)

.setUsageId("intro_fab_button") //Store intro view status whether it is learnt or not

.enableDotAnimation(true) //Shows dot animation center of focus area

.enableIcon(false) //Turn off helper icon, default is true

.performClick(true) //Trigger click operation when user click focused area.

.dismissOnBackPress(false) //Back dismisses the intro by default, including predictive back

//If you don't want to perform click automatically
//You can disable perform clik and handle it yourself
.setListener(new MaterialIntroListener() {
                    @Override
                    public void onUserClicked(String materialIntroViewId) {
                        // Called when the intro is dismissed
                    }

                    @Override
                    public void onIntroShown(String materialIntroViewId) {
                        // Optional, called when the intro becomes visible
                    }
                })

new MaterialIntroSequence()
        .add(new MaterialIntroView.Builder(this).setTarget(searchView).setInfoText("Search songs").setUsageId("search"))
        .add(new MaterialIntroView.Builder(this).setTarget(shareView).setInfoText("Share with friends").setUsageId("share"))
        .setOnCompleteListener(() -> { /* all intros were shown */ })
        .start();

PreferencesManager preferences = new PreferencesManager(context);
preferences.reset("intro_card"); //Show a single intro again
preferences.resetAll(); //Show every intro again

//Create global config instance to not write same config to builder
//again and again.
MaterialIntroConfiguration config = new MaterialIntroConfiguration();
config.setDelayMillis(1000);
config.setFadeAnimationEnabled(true);
...
.setConfiguration(config) //

public class MyShape extends Shape {
    // ... your implementation
}

//... in your app code

.setCustomShape(MyShape shape)