软件概览
Compressor
Gradle
dependencies {
implementation 'id.zelory:compressor:3.0.1'
}
Let's compress the image size!
Compress Image File
val compressedImageFile = Compressor.compress(context, actualImageFile)
Compress Image File to specific destination
val compressedImageFile = Compressor.compress(context, actualImageFile) {
default()
destination(myFile)
}
I want custom Compressor!
Using default constraint and custom partial of it
val compressedImageFile = Compressor.compress(context, actualImageFile) {
default(width = 640, format = Bitmap.CompressFormat.WEBP)
}
Full custom constraint
val compressedImageFile = Compressor.compress(context, actualImageFile) {
resolution(1280, 720)
quality(80)
format(Bitmap.CompressFormat.WEBP)
size(2_097_152) // 2 MB
}
Using your own custom constraint
class MyLowerCaseNameConstraint: Constraint {
override fun isSatisfied(imageFile: File): Boolean {
return imageFile.name.all { it.isLowerCase() }
}
override fun satisfy(imageFile: File): File {
val destination = File(imageFile.parent, imageFile.name.toLowerCase())
imageFile.renameTo(destination)
return destination
}
}
val compressedImageFile = Compressor.compress(context, actualImageFile) {
constraint(MyLowerCaseNameConstraint()) // your own constraint
quality(80) // combine with compressor constraint
format(Bitmap.CompressFormat.WEBP)
}
You can create your own extension too
fun Compression.lowerCaseName() {
constraint(MyLowerCaseNameConstraint())
}
val compressedImageFile = Compressor.compress(context, actualImageFile) {
lowerCaseName() // your own extension
quality(80) // combine with compressor constraint
format(Bitmap.CompressFormat.WEBP)
}
Compressor now is using Kotlin coroutines!
Calling Compressor should be done from coroutines scope
// e.g calling from activity lifecycle scope
lifecycleScope.launch {
val compressedImageFile = Compressor.compress(context, actualImageFile)
}
// calling from global scope
GlobalScope.launch {
val compressedImageFile = Compressor.compress(context, actualImageFile)
}
Run Compressor in main thread
val compressedImageFile = Compressor.compress(context, actualImageFile, Dispatchers.Main)
Old version
Please read this readme
License
Copyright (c) 2016 Zetra.
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.