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Description

A Library designed to draw a Skeleton by "skinning" the view from a provided layout. Skeleton is composed of Bone with different properties, library usage defines which bones to be drawn before the view is skinned. Usually used as a Placeholder while loading a data before it is populated to a View. By using this library, creating a skeleton view is much simpler and dynamic as developers don't need to create specific skeleton layout.xml for each view, instead use this custom view to draw the shape as the specified layout.xml.

Supports the following shapes :

The library is developed using Kotlin, and built for interopability with Java

Programming language: Kotlin
License: Apache License 2.0
Tags: Kotlin     Android     Java     Layout     Views     Custom View     Android-library     Placeholder    
Latest version: v1.1.0

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README

Skeleton Placeholder View Maven Central platform license

Overview

A Library designed to draw a Skeleton by "skinning" the view from a provided layout. Skeleton is composed of Bone with different properties, library usage defines which bones to be drawn before the view is skinned. Usually used as a Placeholder while loading a data before it is populated to a View. By using this library, creating a skeleton view is much simpler and dynamic as developers don't need to create specific skeleton layout.xml for each view, instead use this custom view to draw the shape as the specified layout.xml.

Supports the following shapes :

RectBone CircleBone

The library is developed using Kotlin, and built for interopability with Java

NOTE: The output of this library strongly depends on how you write your layout file

Preview

SkeletonPlaceholderView

Working sample on CIAYO Comics Android App:

SkeletonPlaceholderView

Setup

Gradle

    dependencies {
         implementation 'com.github.ferrytan:skeletonplaceholderview:${latestVersion}'
         ...
     }

Replace ${latestVersion} with the latest version code. See releases.

SkeletonPlaceholderView 1.1.0 and above only supports projects that have been migrated to androidx. For more information, read Google's migration guide. Please use version 1.0.2 for projects that are still using the old support library.

Sample Usage

For a working implementation, please have a look at the Sample Project

  1. Add SkeletonPlaceholderView to your layout xml: xml <com.meetferrytan.skeletonplaceholderview.SkeletonPlaceholderView android:id="@+id/skeletonPlaceholderView" android:layout_width="match_parent" android:layout_height="wrap_content" app:sk_bone_corner_radius_default="2dp" app:sk_background_color="#ffffff" app:sk_bone_color_default="#cccccc" app:sk_bone_height_default="48dp" app:sk_bone_width_default="100dp"/>

See attrs.xml for all supported attributes.

  1. Skin the view programmatically by calling the method SkeletonPlaceholderView.skinView(..)
  2. Simple Usage (uses default RectBone) java // KOTLIN OR JAVA skeletonPlaceholderView.skinView(R.layout.item_sample_2, R.id.imgCover, R.id.txtGenre, R.id.txtTitle, R.id.frmSubscribeCount)
  3. Specific shapes kotlin // KOTLIN skeletonPlaceholderView.skinView(R.layout.item_sample_2, CircleBone(R.id.imgCover), RectBone(R.id.txtGenre), RectBone(R.id.txtTitle), RectBone(R.id.frmSubscribeCount)) java // JAVA skeletonPlaceholderView.skinView(R.layout.item_sample_2, new CircleBone(R.id.imgCover), new RectBone(R.id.txtGenre), new RectBone(R.id.txtTitle), new RectBone(R.id.frmSubscribeCount))
  4. Custom Shapes using Builder Pattern ```kotlin // KOTLIN // Common builder pattern skeletonPlaceholderView.skinView(R.layout.item_sample_2, CircleBone.Builder(R.id.imgCover) .spacing(0) .build(), RectBone.Builder(R.id.txtGenre) .cornerRadius(4f) .customHeight(200) .customWidth(100) .horizontalSpacing(2) .verticalSpacing(4) .build(), RectBone.Builder(R.id.txtTitle) .build(), RectBone.Builder(R.id.frmSubscribeCount) .build())

// DSL skeletonPlaceholderView.skinView(R.layout.item_sample_2, CircleBone.Builder(R.id.imgCover) .spacing(0) .build(), RectBone.Builder(R.id.txtGenre) .apply { cornerRadius(4f) customHeight(200) customWidth(100) horizontalSpacing(2) verticalSpacing(4) }.build(), RectBone.Builder(R.id.txtTitle) .build(), RectBone.Builder(R.id.frmSubscribeCount) .build())

```java
// JAVA
skeletonPlaceholderView.skinView(R.layout.item_sample_2,
            new CircleBone.Builder(R.id.imgCover)
                .spacing(0)
                .build(),
            new RectBone.Builder(R.id.txtGenre)
                .cornerRadius(4f)
                .customHeight(200)
                .color(Color.parseColor("#ff0000"))
                .customWidth(100)
                .horizontalSpacing(2)
                .verticalSpacing(4)
                .build(),
            new RectBone.Builder(R.id.txtTitle)
                .build(),
            new RectBone.Builder(R.id.frmSubscribeCount)
                .build())

See a complete usage in sample code.

Once again, the output of this library STRONGLY DEPENDS on how you write your layout file

Usage in sample app is improved by using Facebook's great library shimmer-android for a shimmering effect over the SkeletonPlaceholderView

Developed By

Ferry Irawan

[email protected]

http://meetferrytan.com/

Projects/Apps using SkeletonPlaceholderView

  • CIAYO Comics
  • Sample App

I'd be happy to know if you're using this library to your app, feel free to contact me and i'll add it to the list

Thanks

Special thanks to:

Copyright 2018 Ferry Irawan

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.


*Note that all licence references and agreements mentioned in the Skeleton Placeholder View README section above are relevant to that project's source code only.