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layout inflate edilir, view'lar kurulur ve varsa kaydedilmiş durum geri yüklenir — kullanıcı ekrana geri döndüğünde tekrar çağrılmaz.",{"id":146,"topic":57,"difficulty":129,"body":147,"options":148,"correct_key":142,"explanation":157},"019fa914-6024-7d47-aaf7-fd2c639bc6ea","Aşağıdakilerden hangisi `onCreate()` ile `onStart()` arasındaki farkı doğru tanımlar?",[149,151,153,155],{"key":133,"text":150},"İkisi her zaman tam olarak aynı anda çalışır, sıra önemli değildir.",{"key":136,"text":152},"`onStart()` her açılışta `onCreate()`'ten önce çalışır.",{"key":139,"text":154},"`onCreate()` bir instance için birden çok kez çağrılabilir, `onStart()` sadece bir kez.",{"key":142,"text":156},"`onCreate()` bir kez, `onStart()` her görünür olduğunda çalışır.","`onCreate()` bir kez (başlangıç kurulumu için) çalışır. `onStart()` ise activity her görünür olmaya başladığında (arka plandan dönüşte dahil) çalışır — bu yüzden bir instance için birden çok kez tetiklenebilirken `onCreate()` sadece bir kez çalışır.",{"id":159,"topic":57,"difficulty":129,"body":160,"options":161,"correct_key":133,"explanation":170},"019fa914-602f-74f0-b592-95c1e26924dd","`onPause()` ile `onStop()` arasındaki temel pratik fark nedir?",[162,164,166,168],{"key":133,"text":163},"`onPause()` odak kaybında, `onStop()` görünmez olunca çalışır.",{"key":136,"text":165},"İkisi aynı callback'in iki farklı adıdır.",{"key":139,"text":167},"`onStop()` her senaryoda `onPause()`'dan önce çalışır.",{"key":142,"text":169},"`onPause()` sadece fragment'ler için vardır, activity'ler için asla.","`onPause()`, activity hâlâ kısmen görünürken ama odağı kaybederken çalışır (örn. üstüne bir dialog açılması). `onStop()` ise activity artık hiç görünmediğinde çalışır.",{"id":172,"topic":57,"difficulty":173,"body":174,"options":175,"correct_key":139,"explanation":184},"019fa914-6031-7cb4-95af-1b1af7eba328",2,"Bir Activity'nin süreci ortadan kalkmadan önce `onDestroy()`'un her zaman çağrılacağı garanti midir?",[176,178,180,182],{"key":133,"text":177},"Evet, hiçbir istisna olmadan her zaman.",{"key":136,"text":179},"Hayır, `onDestroy()` gerçek cihazlarda hiç çalışmaz.",{"key":139,"text":181},"Hayır — sistem, çağırmadan süreci sonlandırabilir.",{"key":142,"text":183},"Evet, ama sadece kullanıcı geri tuşuna açıkça basarsa.","`onDestroy()` son lifecycle callback'idir ama kesin bir garanti değildir — sistem bellek geri almak zorunda kalırsa, `onDestroy()`'u hiç çağırmadan süreci doğrudan sonlandırabilir; bu yüzden kritik temizlik sadece buna güvenmemelidir.",{"id":186,"topic":57,"difficulty":173,"body":187,"options":188,"correct_key":139,"explanation":197},"019fa914-6032-776c-ad0c-73037ae9f904","Ekranda düz (ViewModel olmayan) bir `var count = 0` property'si olan bir Activity açıkken cihaz döndürülüyor. Varsayılan olarak `count`'a ne olur?",[189,191,193,195],{"key":133,"text":190},"Otomatik olarak diske yazılır ve birebir geri yüklenir.",{"key":136,"text":192},"Rotasyon çalışan bir Activity instance'ını hiçbir şekilde etkilemez.",{"key":139,"text":194},"Activity yeniden oluşturulur, `count` 0'a sıfırlanır.",{"key":142,"text":196},"`count`'un rotasyon boyunca artmaya devam etmesi garantidir.","Varsayılan olarak rotasyon gibi bir configuration change, Activity instance'ını yok edip yeniden oluşturur; bu yüzden `onSaveInstanceState` veya bir `ViewModel` ile açıkça kaydedilmemiş düz bir bellek-içi property kaybolur ve başlangıç değerine sıfırlanır.",{"id":199,"topic":57,"difficulty":129,"body":200,"options":201,"correct_key":139,"explanation":210},"019fa914-6034-74be-a634-519f3039a727","Activity'nin kendisi yok edilip yeniden oluşturulurken, bir `ViewModel` instance'ı neden bir configuration change'i (rotasyon gibi) atlatır?",[202,204,206,208],{"key":133,"text":203},"Atlatmaz; her `ViewModel` de rotasyonda yok edilip yeniden oluşturulur.",{"key":136,"text":205},"`ViewModel` aslında özel bir Activity alt sınıfıdır.",{"key":139,"text":207},"Framework onu yeniden oluşturma boyunca tutar ve yeniden bağlar.",{"key":142,"text":209},"Her rotasyonda otomatik olarak diske serialize edildiği için atlatır.","Architecture Components `ViewModel`'i bir lifecycle owner'a bağlıdır ve framework tarafından configuration-change yeniden oluşturmaları boyunca canlı tutulur; 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