ColoredShadowImageView

ColoredShadowImageView allows you to create a beautiful shadow around the image based on corresponding area colors.

Download sample apk

The current minSDK version is API level 16.

Download :arrow_down:

Gradle:

implementation 'com.github.armcha:ColoredShadowImageView:1.1.0'

Setup and usage

1. You also need to add RenderScript to your app module. Add these lines to the defaultConfig block of your build.gradle.

renderscriptTargetApi YOUR_TARGET_SDK_VERSION
renderscriptSupportModeEnabled true 

2. Static image

<io.github.armcha.coloredshadow.ShadowImageView
        android:id="@+id/shadowImage"
        android:layout_width="300dp"
        android:layout_height="400dp"
        android:src="@drawable/android"/>

Or

  findViewById<ShadowImageView>(R.id.shadowImage).apply {
       setImageResource(R.drawable.android)
  }

3. If you are using Glide, use it in this way. Glide transformations are also supported. Now we have some limitations for Glide transitions.

//shadowView.radiusOffset = 0.4f
//shadowView.shadowColor = ContextCompat.getColor(context,R.color.green)

GlideApp.with(itemView.context)
                    .load(item.imageUrl)
                    .placeholder(R.drawable.place_holder)
                    .error(R.drawable.place_holder)
                    //.transform(CircleCrop())
                    .into(object : ViewTarget<ImageView, Drawable>(shadowView) {
                        override fun onLoadStarted(placeholder: Drawable?) {
                            super.onLoadStarted(placeholder)
                            shadowView.setImageDrawable(placeholder, withShadow = false)
                        }

                        override fun onLoadCleared(placeholder: Drawable?) {
                            super.onLoadCleared(placeholder)
                            shadowView.setImageDrawable(placeholder, withShadow = false)
                        }

                        override fun onLoadFailed(errorDrawable: Drawable?) {
                            super.onLoadFailed(errorDrawable)
                            shadowView.setImageDrawable(errorDrawable, withShadow = false)
                        }

                        override fun onResourceReady(resource: Drawable, transition: Transition<in Drawable>?) {
                            shadowView.setImageDrawable(resource)
                        }
                    })