67 lines
2.0 KiB
Markdown
67 lines
2.0 KiB
Markdown
# Kapng-Android
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### An android library to create or display apng
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# Example of apng :
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# How to use this library :
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## To load an animated png to an imageView :
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```kotlin
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val imageUrl = URL("https://upload.wikimedia.org/wikipedia/commons/1/14/Animated_PNG_example_bouncing_beach_ball.png")
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ApngDecoder.decodeApngAsyncInto(context, imageUrl, imageView)
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```
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You can load a file, an uri, a resource int, an url, or an inputStream.
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## With a callback :
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```kotlin
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ApngDecoder.decodeApngAsyncInto(context, imageUrl, imageView, callback = object : ApngDecoder.Callback {
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override fun onSuccess(drawable: Drawable) { println("Success !") }
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override fun onError(error: Exception) { println("Error : $error") }
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})
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```
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## To create animated png :
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```kotlin
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val output : OutputStream = FileOutputStream("res.png") // An OutputStream (ex : a FileOutputStream)
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val maxWidth : Int = 256 // The width of your image (ex : 256)
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val maxHeight : Int = 256// The height of your image (ex : 256)
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val nFrame : Int = 2 // Number of frame (ex : 2)
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val inputFrame1 : InputStream = FileInputStream("frame1.png") // Input stream of your frame 1 (ex : a FileInputStream)
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val inputFrame2 : InputStream = FileInputStream("frame2.png") // Input stream of your frame 2 (ex : a FileInputStream)
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val encoder = ApngEncoder(output, maxWidth, maxHeight, nFrame)
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encoder.writeFrame(inputFrame1)
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inputFrame1.close()
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encoder.writeFrame(inputFrame2, delay=500f) // With delay ! Default is 1000ms
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inputFrame2.close()
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encoder.writeEnd()
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output.close()
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```
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# How to install :
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## Via jitpack [](https://jitpack.io/#oupson/Kapng-Android)
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```gradle
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repositories {
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maven { url "https://jitpack.io" }
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}
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dependencies {
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implementation 'com.github.oupson:Kapng-Android:1.0.10'
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}
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```
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## Or put the aar file in /libs/ and verify that you have :
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```gradle
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dependencies {
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implementation fileTree(include: ['*.aar'], dir: 'libs')
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}
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