GlideWebpDecoder is a Glide integration library for decoding and displaying webp images on Android platforms. It is based on libwebp project and takes some implementation from Fresco and GlideWebpSupport as references.
- play animated webp images on all Android versions
- show transparent or lossless webp images on Android devices lower than 4.2.1 (BitmapFactory support webp decode on 4.2+ android system so we have no need to handle)
Library is available in MavenCentral. If you build with Gradle, just add the following dependencies to your build.gradle file.
Different Glide version is corresponding to different GlideWebpDecoder due to the annotation processor compatibility. The version rule of GlideWebpDecoder is "{major_version}.{glide_version}".
For example, if you use glide 4.16.0, the corresponding version of GlideWebpDecoder should be 2.6.4.16.0
Library will only follow the latest three version of Glide. If you use a lower version glide, please clone the project and modify it yourself.
Notice
Since Glide 4.10.0 has migrate to AndroidX, so your project must use AndroidX with Glide 4.10.0+.
WebpDecoder with AndroidX support starts from version 1.6.{GLIDE_VERSION} and won't support glide version below 4.10.0 anymore.
Attention
Since JCenter is being taken down on May 1 2021 and then close their service, so the library has migrate artifacts to Maven Central. See issue #76 for more detail.
Changes:
- library group id has changed from
com.zlc.glidetocom.github.zjupure - add
mavenCentral()in yourbuild.gradleto fetch this library - only 2.0 version with glide 4.10~4.16 has been migrated and older version not support anymore
If your project use old library version below 2.0, you should upgrade the library to the latest 2.0 version.
def GLIDE_VERSION = "4.16.0"
// webpdecoder
implementation "com.github.zjupure:webpdecoder:2.6.${GLIDE_VERSION}"
// glide 4.10.0+
implementation "com.github.bumptech.glide:glide:${GLIDE_VERSION}"
annotationProcessor "com.github.bumptech.glide:compiler:${GLIDE_VERSION}"Then you are free to use GlideWebpDecoder just like using other Glide integration library.
Basic usage see Glide API documents
If you want to use BitmapTransformation or library glide-transformations, please use WebpDrawableTransformation to wrap your original BitmapTransformation when loading image with Glide request.
Code Snippet as follow. Run sample project to see other Glide built-in transformation effect.
Transformation<Bitmap> circleCrop = new CircleCrop();
GlideApp.with(mContext)
.load(url)
.optionalTransform(circleCrop)
.optionalTransform(WebpDrawable.class, new WebpDrawableTransformation(circleCrop))
.into(imageView);
The library use native code to decode webp, so you should put the following lines to your proguard.cfg and keep the jni interface.
-keep public class com.bumptech.glide.integration.webp.WebpImage { *; }
-keep public class com.bumptech.glide.integration.webp.WebpFrame { *; }
-keep public class com.bumptech.glide.integration.webp.WebpBitmapFactory { *; }The Library is Apache-2.0-licensed, part code is MIT-licensed see Fresco for detail.
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