Activityの背景をぼかす

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1. © 2017 VASILY,Inc. "DUJWJUZͷഎܠΛ΅͔͢ potatotips #45ʢiOS/Android։ൃTipsڞ༗ձʣ 2017/11/28 
2. © 2017 VASILY,Inc. ࣗݾ঺հ Ἒ໦ɹெਔ גࣜձࣾ7"4*-:
   ϑϩϯτΤϯυ։ൃ෦ @niba1122 ೥ɺגࣜձࣾ7"4*-:ʹ৽ଔͰೖࣾɻ
   ϑϩϯτΤϯυΤϯδχΞͱͯ͠8FCJ04"OESPJEͷ
   ֤ϓϥοτϑΥʔϜΛ୲౰͍ͯ͠Δɻ
   J04"OESPJEڞʹ։ൃྺϲ݄ɻ 
3. © 2017 VASILY,Inc. ΍Γ͍ͨ͜ͱ "DUJWJUZͷ্ʹ৽͍͠"DUJWJUZΛදࣔͯ͠എܠΛ΅͔͢ 
4. © 2017 VASILY,Inc. ࣮૷ͷํ਑ എܠͷΩϟϓνϟΛऔΔ Ωϟϓνϟʹ#MVSॲཧΛֻ͚Δ #MVSΛֻ͚ͨΩϟϓνϟΛ"DUJWJUZͷഎܠʹઃఆ͢Δ 
5. © 2017 VASILY,Inc. #MVSॲཧ IUUQXXXKBZSBNCIJBDPNCMPHBOESPJECBDLHSPVOECMVS
   Λࢀߟʹ࣮ͯ͠૷ 
6. © 2017 VASILY,Inc. Ωϟϓνϟͷऔಘ
   val view: View = window.findViewById(android.R.id.content) try { val bitmap = Bitmap.createBitmap(view.width, view.height, Bitmap.Config.ARGB_8888) val c = Canvas(bitmap) view.draw(c) } catch (e: IllegalArgumentException) { e.printStackTrace() } 
7. © 2017 VASILY,Inc. ۤ࿑ͨ͠఺ᶃ ϙοϓΞοϓͷ"DUJWJUZͰ
   എܠͷΩϟϓνϟΛࡱΕͳ͍ ϙοϓΞοϓͷ"DUJWJUZΛಁ໌ʹͯ͠ΩϟϓνϟΛࡱͬͯ΋
   എܠͷ"DUJWJUZ͸Ωϟϓνϟ͞Εͳ͍ 
8. © 2017 VASILY,Inc. ղܾࡦ ભҠલͷ"DUJWJUZͰΩϟϓνϟΛࡱͬͯ
   ϙοϓΞοϓͷ"DUJWJUZʹ౉͢ 
9. © 2017 VASILY,Inc. Ωϟϓνϟͷ#NQ͕େ͖͗ͯ͢*OUFOUͰ౉ͤͳ͍ͷͰ
   ϩʔΧϧετϨʔδʹอଘͯ͠63*Λ*OUFOUͰ౉͢Α͏ʹͨ͠ val cacheDir = cacheDir val file = File(cacheDir, CACHE_FILE_NAME) return try { val outputStream = FileOutputStream(file) bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream) outputStream.flush() outputStream.close() Uri.fromFile(file) } catch (e: IOException) { e.printStackTrace() null } 
10. © 2017 VASILY,Inc.
11. © 2017 VASILY,Inc. ۤ࿑ͨ͠఺ᶄ ը૾อଘɾ#MVSॲཧ͕ॏ͍
    ʢػछʹ΋ΑΔ͕ඵఔ౓͔͔Δ৔߹͕͋Δʣ
    ͦͷͨΊϝΠϯεϨουΛѹഭ͢Δ 
12. © 2017 VASILY,Inc. ղܾࡦ શͯ"TZOD5BTLͰ΍Δ 
13. © 2017 VASILY,Inc. ը૾ॲཧ͸$POUFYUΛ࢖͏ॲཧ͕ଟ͍ͷͰ
    "TZOD5BTLʹ"DUJWJUZΛ౉ͯ͠8FBL3FGFSFODFͰ
    ࢀর͢ΔΑ͏ʹͨ͠ private class AsyncBlurredCaptureLoader(activity: BlurredModalActivity) : AsyncTask<Uri, Unit, Drawable>() { private val activity = WeakReference(activity) override fun doInBackground(vararg params: Uri?): Drawable? { val uri = params[0] ?: return null val capture = loadCapture(uri) ?: return null val renderScript = activity.get()?.let { RenderScript.create(it) } ?: return null val blurredCapture = RSBlurProcessor(renderScript).blur(capture, 25f, 3) ?: return null val resources = activity.get()?.resources ?: return null return BitmapDrawable(resources, blurredCapture) } override fun onPostExecute(result: Drawable?) { super.onPostExecute(result) activity.get()?.onLoadBlurredCapture(result) } 
14. © 2017 VASILY,Inc.
15. © 2017 VASILY,Inc. ·ͱΊ w ϙοϓΞοϓͷ"DUJWJUZ͔ΒഎܠͷΩϟϓνϟ͸ࡱΕͳ͍ͷͰ
 എܠͷ"DUJWJUZͰ༧ΊΩϟϓνϟΛऔΔΑ͏ʹͨ͠
    w Ωϟϓνϟը૾͕େ͖͍ͨΊʹJOUFOUͰ౉ͤͳ͍ͷͰ
 ϩʔΧϧετϨʔδʹอଘ͢ΔΑ͏ʹͨ͠
    w ը૾อଘ΍#MVSॲཧΛ"TZOD5BTLͰߦ͏ͱ͖ʹϝΠϯεϨου ͷDPOUFYU͕ඞཁͳͷͰɺ8FBL3FGFSFODFΛ࢖ͬͨ
 
16. © 2017 VASILY,Inc.  ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠