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Gradle

Add the dependency below to your module's build.gradle file:

dependencies {
    implementation("com.github.skydoves:androidveil:1.1.4")
}

Usage

First, add following XML namespace inside your XML layout file:

xmlns:app="http://schemas.android.com/apk/res-auto"

VeilLayout in layout

<com.skydoves.androidveil.VeilLayout
      android:id="@+id/veilLayout"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      app:veilLayout_veiled="true" // shows veils initially
      app:veilLayout_shimmerEnable="true" // sets shimmer enable
      app:veilLayout_baseColor="@android:color/holo_green_dark" // sets shimmer base color
      app:veilLayout_highlightColor="@android:color/holo_green_light" // sets shimmer highlight color
      app:veilLayout_baseAlpha="0.6" // sets shimmer base alpha value
      app:veilLayout_highlightAlpha="1.0" // sets shimmer highlight alpha value
      app:veilLayout_dropOff="0.5"// sets how quickly the shimmer`s gradient drops-off
      app:veilLayout_radius="6dp" // sets a corner radius of the whole veiled items >

      <TextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="And now here is my secret, a very simple secret"
         android:textColor="@android:color/white"
         android:textSize="22sp"/>

      <!-- Skip -->    

</com.skydoves.androidveil.VeilLayout>

Veil and UnVeil

We can implement veiled skeletons using below methods.

veilLayout.veil()
veilLayout.unVeil()

Implement veils using layout resource

We can implement veiled skeletons using the layout resource.

veilLayout.layout = R.layout.layout_item_test

VeilRecyclerFrameView

VeilRecyclerFrameView implements veiled skeletons for RecyclerView with the shimmer effect.

VeilRecyclerFrameView in layout

<com.skydoves.androidveil.VeilRecyclerFrameView
        android:id="@+id/veilRecyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:veilFrame_layout="@layout/item_profile" // sets to make veiling target layout
        app:veilFrame_veiled="true" // shows veils initially
        app:veilFrame_shimmerEnable="true" // sets shimmer enable
        app:veilFrame_baseColor="@android:color/holo_green_dark" // sets shimmer base color
        app:veilFrame_highlightColor="@android:color/holo_green_light" // sets shimmer highlight color
        app:veilFrame_baseAlpha="0.6" // sets shimmer base alpha value
        app:veilFrame_highlightAlpha="1.0" // sets shimmer highlight alpha value
        app:veilFrame_radius="8dp" // sets a corner radius of the whole veiled items 
        app:veilFrame_isItemWrapContentHeight="true"  // sets height of list item wrap_content
        app:veilFrame_isItemWrapContentWidth="true"   // sets width of list item wrap_content />

And we should attach our own adapter and LayoutManager.

veilRecyclerView.setAdapter(adapter) // sets your own adapter
veilRecyclerView.setLayoutManager(LinearLayoutManager(this)) // sets LayoutManager
veilRecyclerView.addVeiledItems(15) // add veiled 15 items

VeilRecyclerFrameView with a horizontal carousel

Automatically masking a horizontal layout is not supported yet. Horizontal (carousel) layouts can be used if you specify their shimmer layout yourself in advance (and tell the view to use this prepared layout by setting isPrepared = true). See CarouselActivity for an example

veilRecyclerView.setVeilLayout(
  layout = R.layout.item_prepared_shimmer_carousel,
  isPrepared = true
)
veilRecyclerView.setAdapter(adapter)
veilRecyclerView.setLayoutManager(LinearLayoutManager(this, RecyclerView.HORIZONTAL, false))
addVeiledItems(15)

Veil and UnVeil

We can implement veiled skeletons using below methods.

veilRecyclerView.veil() // shows veil skeletons
veilRecyclerView.unVeil() // disappear veils and shows your own recyclerView

RecyclerView

We can access our Recyclerview and veiledRecyclerView using the below methods.

veilRecyclerView.getRecyclerView() // veilRecyclerView.getRecyclerView().setHasFixedSize(true)
veilRecyclerView.getVeiledRecyclerView()

Shimmer

This library using shimmer-android by Facebook.<br> Here are the detail shimmer-instruction about shimmer or you can reference below examples.

create using Builder

This is how to create Shimmer's instance using Shimmer.Builder class.

val shimmer = Shimmer.ColorHighlightBuilder()
      .setBaseColor(ContextCompat.getColor(context, R.color.shimmerBase0))
      .setHighlightColor(ContextCompat.getColor(context, R.color.shimmerHighlight0))
      .setBaseAlpha(1f)
      .setHighlightAlpha(1f)
      .build()

veilLayout.shimmer = shimmer // sets shimmer to VeilLayout
veilRecyclerView.shimmer = shimmer // sets shimmer to VeilRecyclerView

create using kotlin dsl

This is how to create Shimmer's instance using kotlin dsl.

val shimmer_alpha = alphaShimmer {
      setBaseAlpha(1.0f)
      setHighlightAlpha(0.5f)
}
val shimmer_color = colorShimmer {
      setBaseAlpha(1.0f)
      setHighlightAlpha(0.5f)
      setBaseColor(ContextCompat.getColor(context, R.color.colorPrimary))
      setHighlightColor(ContextCompat.getColor(context, R.color.colorPrimaryDark))
}

AndroidVeil Attributes

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License

Copyright 2018 skydoves

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.