Navigating Pages with Ease: A Custom ViewPager in Android

ViewPager is one of the most commonly used components in Android for creating swipeable screens.

Why Custom ViewPager?

While the default ViewPager works well, sometimes you need:

Custom page transformations
Different swipe behaviors
Custom indicators

Implementation

Step 1: Create the ViewPager

kotlin

class CustomViewPager @JvmOverloads constructor(
    context: Context,
    attrs: AttributeSet? = null
) : ViewPager(context, attrs) {

    init {
        setPageTransformer(true, CustomPageTransformer())
    }
}

Step 2: Custom Page Transformer

kotlin

class CustomPageTransformer : ViewPager.PageTransformer {
    override fun transformPage(page: View, position: Float) {
        page.apply {
            when {
                position < -1 -> alpha = 0f
                position <= 1 -> {
                    alpha = 1 - abs(position)
                    scaleX = 0.85f + (1 - abs(position)) * 0.15f
                    scaleY = scaleX
                }
                else -> alpha = 0f
            }
        }
    }
}

Conclusion

Custom ViewPagers can significantly enhance the user experience in your app. Experiment with different transformations to find what works best for your use case.

Why Custom ViewPager?#

Implementation#

Step 1: Create the ViewPager#

Step 2: Custom Page Transformer#

Conclusion#

Why Custom ViewPager?

Implementation

Step 1: Create the ViewPager

Step 2: Custom Page Transformer

Conclusion