CNSDK simplifies Leia Lightfield device support implementation. It provides a simple API to setup and use all necessary components.
While not absolutely required, the CNSDK will allow you to harness the ability of your lightfield device in a simple manner. Any developer attempting to create Leia lightfield 3D experiences without CNSDK will encounter significant technical challenges. We therefore highly suggest using CNSDK for your application.
Let’s start from a quick example.
Initialize CNSDK
class MainApp : Application() {
override fun onCreate() {
// ...
val initArgs = LeiaSDK.InitArgs()
initArgs.platform.app = this
LeiaSDK.createSDK(initArgs)
}
}Add InterlacedSurfaceView to a layout
<androidx.constraintlayout.widget.ConstraintLayout
...>
<com.leia.sdk.views.InterlacedSurfaceView
android:id="@+id/interlacedView"
... />
</androidx.constraintlayout.widget.ConstraintLayout>Set InterlacedSurfaceView content
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
// ...
val bitmap = ... // Load Bitmap
val asset = InputViewsAsset.createSurfaceFromLoadedBitmap(bitmap, true)
val interlacedView = findViewById(R.id.interlacedView)
interlacedView.setViewAsset(asset)
}
}Enable the Backlight
class MainActivity : AppCompatActivity() {
override fun onWindowFocusChanged(hasFocus: Boolean) {
// ...
LeiaSDK.getInstance()?.let {
it.enableBacklight(hasFocus)
it.startFaceTracking(hasFocus)
}
}
}And that’s it.
For more, see samples provided with CNSDK. Also, make sure to read documentation of the main classes: LeiaSDK, InterlacedSurfaceView, InputViewsAsset.
ProGuard (Obfuscation)
CNSDK contains native components that are calling into Java components using Java Native Interface. Because of that ProGuard obfuscation/optimization should not be applied to CNSDK Java bytecode. The following ProGuard rules can be used to achieve this:
-keep class com.leia.sdk.** { *; }
-keep class com.leia.core.** { *; }
-keep class com.leia.internal.** { *; }
-keep class com.leia.headtracking.** { *; }It’s better to use the provided rules instead of using -keep class com.leia.** { *; } because it will disable optimization for other Leia libraries which in
the general case is undesirable.