view.getDrawingCache () est obsolète dans l'API Android 28

Question

Dans l'API Android, 28 view.getDrawingCache() est obsolète. Existe-t-il une nouvelle solution pour générer une image bitmap d’une vue particulière dans Android?.

Answer 1

J'ai trouvé un moyen d'utiliser l'API PixelCopy pour récupérer la vue sous forme de bitmap. Kotlin d'occasion

fun getBitmapFromView(view: View, activity: Activity, callback: (Bitmap) -> Unit) {
    activity.window?.let { window ->
        val bitmap = Bitmap.createBitmap(view.width, view.height, Bitmap.Config.ARGB_8888)
        val locationOfViewInWindow = IntArray(2)
        view.getLocationInWindow(locationOfViewInWindow)
        try {
            PixelCopy.request(window, Rect(locationOfViewInWindow[0], locationOfViewInWindow[1], locationOfViewInWindow[0] + view.width, locationOfViewInWindow[1] + view.height), bitmap, { copyResult ->
                if (copyResult == PixelCopy.SUCCESS) {
                    callback(bitmap)
                }
                // possible to handle other result codes ...
            }, Handler())
        } catch (e: IllegalArgumentException) {
            // PixelCopy may throw IllegalArgumentException, make sure to handle it
            e.printStackTrace()
        }
    }
}

Answer 2

1. Utiliser la toile
2. Pixel Api

---

Canvas Example

RelativeLayout view = (RelativeLayout)findViewById(R.id.relativelayout);
Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Drawable bgDrawable = view.getBackground();
if (bgDrawable != null) {
    bgDrawable.draw(canvas);
} else {
    canvas.drawColor(Color.WHITE);
}
view.draw(canvas);

PixelCopy Api

https://stackoverflow.com/a/52985554/9909365

Pour plus

https://developer.Android.com/reference/Android/graphics/Bitmap

https://developer.Android.com/reference/Android/graphics/Canvas

Answer 3

En tant que documentation officielle getDrawingCache () , vous devez utiliser l’application PixelCopy .