{"id":31650,"date":"2025-10-12T09:01:24","date_gmt":"2025-10-12T06:01:24","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/mobil-uygulama-performansi-neden-kritik-ve-litho-nasil-bir-cozum-sunar\/"},"modified":"2025-10-12T09:01:24","modified_gmt":"2025-10-12T06:01:24","slug":"mobil-uygulama-performansi-neden-kritik-ve-litho-nasil-bir-cozum-sunar","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/mobil-uygulama-performansi-neden-kritik-ve-litho-nasil-bir-cozum-sunar\/","title":{"rendered":"Mobil Uygulama Performans\u0131 Neden Kritik ve Litho Nas\u0131l Bir \u00c7\u00f6z\u00fcm Sunar?"},"content":{"rendered":"<p><body><\/p>\n<style>\n  \/* Base styles *\/\n  body {\n    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n    line-height: 1.7;\n    color: #333;\n    margin: 0;\n    padding: 20px;\n    background-color: #f8f9fa;\n  }\n  .container {\n    max-width: 1000px;\n    margin: 0 auto;\n    padding: 0 15px;\n    background-color: #ffffff;\n    border-radius: 8px;\n    box-shadow: 0 4px 12px rgba(0,0,0,0.05);\n  }\n  h1, h2, h3 {\n    color: #2c3e50;\n    margin-top: 1.5em;\n    margin-bottom: 0.8em;\n  }\n  h1 { font-size: 2.2em; text-align: center; padding-top: 20px; }\n  h2 { font-size: 1.8em; border-bottom: 2px solid #e0e0e0; padding-bottom: 10px; }\n  h3 { font-size: 1.4em; color: #34495e; }\n  p { margin-bottom: 1em; }\n  ul, ol {\n    margin-bottom: 1em;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 0.5em;\n  }\n  \/* Expert Tip styling *\/\n  .expert-tip {\n    background-color: #e6f7ff;\n    border-left: 5px solid #1890ff;\n    padding: 15px;\n    margin: 25px 0;\n    font-style: italic;\n    color: #2c3e50;\n    border-radius: 4px;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.05);\n  }\n  \/* Code block styling *\/\n  pre {\n    background-color: #282c34;\n    padding: 18px;\n    border-radius: 8px;\n    overflow-x: auto;\n    margin: 25px 0;\n    color: #abb2bf;\n    line-height: 1.5;\n  }\n  code {\n    font-family: 'Fira Code', 'JetBrains Mono', 'Courier New', Courier, monospace;\n    font-size: 0.95em;\n    color: #c7254e; \/* For inline code *\/\n    background-color: #f0f0f0;\n    padding: 2px 5px;\n    border-radius: 3px;\n  }\n  pre code {\n    color: #abb2bf;\n    background-color: transparent;\n    padding: 0;\n  }\n  \/* Table styling *\/\n  table {\n    width: 100%;\n    border-collapse: collapse;\n    margin: 25px 0;\n    box-shadow: 0 2px 8px rgba(0,0,0,0.08);\n    border-radius: 8px;\n    overflow: hidden; \/* Ensures rounded corners apply to content *\/\n  }\n  th, td {\n    border: 1px solid #e0e0e0;\n    padding: 12px 15px;\n    text-align: left;\n  }\n  th {\n    background-color: #f2f2f2;\n    font-weight: bold;\n    color: #333;\n  }\n  tr:nth-child(even) {\n    background-color: #f9f9f9;\n  }\n  \/* Responsive design with media queries *\/\n  @media (max-width: 768px) {\n    body {\n      padding: 10px;\n    }\n    .container {\n      padding: 0 10px;\n      border-radius: 0;\n      box-shadow: none;\n    }\n    h1 { font-size: 1.8em; }\n    h2 { font-size: 1.5em; }\n    h3 { font-size: 1.2em; }\n    table, thead, tbody, th, td, tr {\n      display: block;\n    }\n    thead tr {\n      position: absolute;\n      top: -9999px;\n      left: -9999px;\n    }\n    tr {\n      margin-bottom: 15px;\n      border: 1px solid #ddd;\n      border-radius: 5px;\n      box-shadow: 0 2px 4px rgba(0,0,0,0.05);\n    }\n    td {\n      border: none;\n      border-bottom: 1px solid #eee;\n      position: relative;\n      padding-left: 50%;\n      text-align: right;\n      min-height: 40px; \/* Ensure enough space for content *\/\n      display: flex;\n      align-items: center;\n      justify-content: flex-end;\n    }\n    td:last-child {\n        border-bottom: none;\n    }\n    td:before {\n      position: absolute;\n      top: 0;\n      left: 6px;\n      width: 45%;\n      height: 100%;\n      padding-right: 10px;\n      white-space: nowrap;\n      text-align: left;\n      font-weight: bold;\n      display: flex;\n      align-items: center;\n      box-sizing: border-box;\n      content: attr(data-label); \/* Use data-label attribute for content *\/\n    }\n    \/* Add labels for table cells *\/\n    td:nth-of-type(1):before { content: \"\u00d6zellik:\"; }\n    td:nth-of-type(2):before { content: \"Geleneksel View:\"; }\n    td:nth-of-type(3):before { content: \"Litho:\"; }\n  }\n<\/style>\n<h1>Litho: Ak\u0131ll\u0131 \u00d6nbellekleme ve Performans Optimizasyonu<\/h1>\n<div class=\"container\">\n<p>Mobil uygulamalar\u0131n\u0131z\u0131n performans\u0131n\u0131 Litho ile nas\u0131l zirveye ta\u015f\u0131yabilece\u011finizi merak m\u0131 ediyorsunuz? Bu makale, Litho&#8217;nun ak\u0131ll\u0131 \u00f6nbellekleme ve render optimizasyon stratejilerini detayl\u0131ca inceliyor, ger\u00e7ek d\u00fcnya senaryolar\u0131 ve pratik \u00f6rneklerle uygulamalar\u0131n\u0131z\u0131 h\u0131zland\u0131rman\u0131n yollar\u0131n\u0131 g\u00f6steriyor.<\/p>\n<p>G\u00fcn\u00fcm\u00fcz mobil d\u00fcnyas\u0131nda kullan\u0131c\u0131 deneyimi, bir uygulaman\u0131n ba\u015far\u0131s\u0131n\u0131 belirleyen en \u00f6nemli fakt\u00f6rlerden biridir. Uygulaman\u0131z ne kadar \u00f6zellikli olursa olsun, e\u011fer yava\u015f \u00e7al\u0131\u015f\u0131yorsa, tak\u0131l\u0131yorsa veya gecikmeler ya\u015fat\u0131yorsa, kullan\u0131c\u0131lar h\u0131zla alternatiflere y\u00f6nelecektir. Ak\u0131c\u0131 bir aray\u00fcz (UI) ve h\u0131zl\u0131 yan\u0131t s\u00fcreleri, kullan\u0131c\u0131 memnuniyetini art\u0131rman\u0131n, uygulama i\u00e7i etkile\u015fimi te\u015fvik etmenin ve dolay\u0131s\u0131yla uygulaman\u0131z\u0131n kal\u0131c\u0131l\u0131\u011f\u0131n\u0131 sa\u011flaman\u0131n anahtar\u0131d\u0131r.<\/p>\n<p>Performans sorunlar\u0131 genellikle karma\u015f\u0131k UI&#8217;lar, b\u00fcy\u00fck veri setlerinin i\u015flenmesi, yo\u011fun a\u011f istekleri veya yetersiz kaynak y\u00f6netimi gibi nedenlerden kaynaklan\u0131r. \u00d6zellikle Android ekosisteminde, farkl\u0131 cihaz \u00f6zellikleri ve i\u015fletim sistemi versiyonlar\u0131 aras\u0131nda tutarl\u0131 bir performans sergilemek, geli\u015ftiriciler i\u00e7in ciddi bir meydan okumad\u0131r. Geleneksel Android View sistemi, esnekli\u011fi ve geni\u015f toplulu\u011fu ile bilinse de, \u00f6zellikle uzun listelerin veya i\u00e7 i\u00e7e ge\u00e7mi\u015f karma\u015f\u0131k aray\u00fczlerin render edilmesinde performans darbo\u011fazlar\u0131na yol a\u00e7abilir. Bu durum, UI \u00f6\u011felerinin ana i\u015f par\u00e7ac\u0131\u011f\u0131nda (main thread) \u00f6l\u00e7\u00fcl\u00fcp yerle\u015ftirilmesinden ve hiyerar\u015fik derinli\u011finden ileri gelmektedir.<\/p>\n<p>\u0130\u015fte tam da bu noktada Facebook taraf\u0131ndan geli\u015ftirilen a\u00e7\u0131k kaynakl\u0131 UI \u00e7er\u00e7evesi Litho, sahneye \u00e7\u0131k\u0131yor. Litho, mobil uygulama geli\u015ftiricilerine, \u00f6zellikle de y\u00fcksek performansl\u0131, dinamik ve karma\u015f\u0131k listelerle \u00e7al\u0131\u015fan uygulamalara odaklanan bir dizi yenilik\u00e7i \u00e7\u00f6z\u00fcm sunar. Amac\u0131, kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fc daha h\u0131zl\u0131, daha ak\u0131c\u0131 ve daha verimli hale getirmektir. Bunu yaparken geleneksel Android View sisteminin s\u0131n\u0131rlamalar\u0131n\u0131 a\u015fmay\u0131 hedefler. Temel olarak, Litho, kullan\u0131c\u0131 aray\u00fcz\u00fc \u00f6\u011felerinin d\u00fczenini (layout) ve render i\u015flemlerini ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ay\u0131rarak, uygulaman\u0131n genel yan\u0131t verme yetene\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r. Bu, \u00f6zellikle yo\u011fun kayd\u0131rma i\u015flemlerinde veya e\u015f zamanl\u0131 bir\u00e7ok UI g\u00fcncellemesi gerekti\u011finde, fark edilir derecede daha p\u00fcr\u00fczs\u00fcz bir deneyim sa\u011flar. Dolay\u0131s\u0131yla, Litho, mobil uygulama geli\u015ftiricilerinin performans hedeflerine ula\u015fmalar\u0131na yard\u0131mc\u0131 olmak i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7 seti sunar.<\/p>\n<div class=\"expert-tip\">Uzman \u0130pucu: UI performans\u0131n\u0131 de\u011ferlendirirken sadece y\u00fckleme s\u00fcrelerine de\u011fil, ayn\u0131 zamanda kayd\u0131rma ak\u0131c\u0131l\u0131\u011f\u0131na (FPS &#8211; Frame Per Second) ve dokunma yan\u0131t s\u00fcrelerine de odaklan\u0131n. Litho bu alanlarda \u00fcst\u00fcnl\u00fck sa\u011flar.<\/div>\n<h2>Litho&#8217;nun Temel Kavramlar\u0131 Nelerdir ve Geleneksel Yakla\u015f\u0131mdan Farklar\u0131 Nelerdir?<\/h2>\n<p>Litho&#8217;yu anlamak i\u00e7in \u00f6ncelikle temel yap\u0131 ta\u015flar\u0131n\u0131 ve geleneksel Android View sisteminden ayr\u0131lan y\u00f6nlerini kavramak \u00f6nemlidir. Litho, deklaratif bir UI \u00e7er\u00e7evesidir. Yani, kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fc &#8220;nas\u0131l&#8221; g\u00f6r\u00fcnece\u011fini ad\u0131m ad\u0131m tarif etmek yerine, belirli bir durum i\u00e7in &#8220;ne&#8221; g\u00f6r\u00fcnece\u011fini bildirirsiniz. Bu, React ve Flutter gibi modern UI \u00e7er\u00e7eveleriyle benzer bir yakla\u015f\u0131md\u0131r ve UI geli\u015ftirme s\u00fcrecini basitle\u015ftirirken, ayn\u0131 zamanda performans\u0131 da art\u0131r\u0131r.<\/p>\n<p>Litho&#8217;nun \u00e7ekirde\u011finde iki ana kavram bulunur: <strong>Component (Bile\u015fen)<\/strong> ve <strong>ComponentTree (Bile\u015fen A\u011fac\u0131)<\/strong>. Her UI \u00f6\u011fesi bir bile\u015fen olarak tan\u0131mlan\u0131r. Bu bile\u015fenler, kendi layout&#8217;lar\u0131n\u0131 ve hatta \u00e7izim mant\u0131klar\u0131n\u0131 i\u00e7erebilir. Bile\u015fenler, de\u011fi\u015fmez (immutable) veri yap\u0131lar\u0131d\u0131r ve bu durum, performans\u0131 art\u0131ran \u00f6nbellekleme ve yeniden kullan\u0131m mekanizmalar\u0131n\u0131 m\u00fcmk\u00fcn k\u0131lar. Bir bile\u015fenin durumu de\u011fi\u015fti\u011finde, Litho sadece etkilenen bile\u015fenleri yeniden hesaplar ve g\u00fcnceller, t\u00fcm UI&#8217;y\u0131 ba\u015ftan \u00e7izmez.<\/p>\n<p>Geleneksel View sistemi, her UI \u00f6\u011fesi i\u00e7in bir View nesnesi olu\u015fturur ve bu View&#8217;lar bir hiyerar\u015fi i\u00e7inde birbirine ba\u011fl\u0131d\u0131r. Bu hiyerar\u015fi ne kadar derin ve karma\u015f\u0131ksa, d\u00fczenleme (layout) ve \u00e7izim (draw) i\u015flemleri ana i\u015f par\u00e7ac\u0131\u011f\u0131nda o kadar fazla zaman al\u0131r. Litho ise bu yakla\u015f\u0131m\u0131 de\u011fi\u015ftirir. \u00d6ncelikle, Litho, View&#8217;lar yerine kendi hafif bile\u015fenlerini kullan\u0131r. Bu bile\u015fenler, ekranda g\u00f6r\u00fcn\u00fcr olduklar\u0131 s\u00fcrece ger\u00e7ek View veya Drawable nesneleriyle e\u015fle\u015ftirilirler. Bu i\u015fleme &#8220;Mounting&#8221; ad\u0131 verilir. G\u00f6r\u00fcn\u00fcrl\u00fck d\u0131\u015f\u0131na \u00e7\u0131kt\u0131klar\u0131nda ise kaynaklar\u0131 serbest b\u0131rak\u0131l\u0131r ve &#8220;Unmounting&#8221; i\u015flemi ger\u00e7ekle\u015fir. Bu mekanizma, kaynaklar\u0131n verimli bir \u015fekilde kullan\u0131lmas\u0131n\u0131 sa\u011flar ve bellek ayak izini azalt\u0131r.<\/p>\n<p>\u0130kinci ve belki de en \u00f6nemli fark, layout hesaplamalar\u0131n\u0131n <strong>ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z (off-main thread)<\/strong> olarak yap\u0131lmas\u0131d\u0131r. Litho, Facebook taraf\u0131ndan geli\u015ftirilen ve web&#8217;deki CSS Flexbox standard\u0131ndan esinlenen y\u00fcksek performansl\u0131 bir layout motoru olan Yoga&#8217;y\u0131 kullan\u0131r. Yoga, bile\u015fenlerin boyutlar\u0131n\u0131 ve konumlar\u0131n\u0131 ana i\u015f par\u00e7ac\u0131\u011f\u0131n\u0131 engellemeden paralel olarak hesaplar. Bu, karma\u015f\u0131k UI&#8217;larda bile p\u00fcr\u00fczs\u00fcz kayd\u0131rma ve h\u0131zl\u0131 aray\u00fcz g\u00fcncellemeleri sa\u011flamak i\u00e7in kritik \u00f6neme sahiptir. Sonu\u00e7 olarak, Litho, UI hiyerar\u015fisini d\u00fczle\u015ftirerek ve kaynaklar\u0131 ak\u0131ll\u0131ca y\u00f6neterek geleneksel Android View sisteminin kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir\u00e7ok performans sorununu a\u015far. Ayr\u0131ca, bu yakla\u015f\u0131m, uygulaman\u0131z\u0131n hem h\u0131z\u0131n\u0131 hem de duyarl\u0131l\u0131\u011f\u0131n\u0131 art\u0131r\u0131rken, geli\u015ftiricilere daha verimli bir \u00e7al\u0131\u015fma alan\u0131 sunar.<\/p>\n<h2>Litho&#8217;da Ak\u0131ll\u0131 \u00d6nbellekleme Mekanizmalar\u0131 Nas\u0131l \u0130\u015fler ve Performansa Katk\u0131lar\u0131 Nelerdir?<\/h2>\n<p>Litho&#8217;nun en g\u00fc\u00e7l\u00fc yanlar\u0131ndan biri, ak\u0131ll\u0131 \u00f6nbellekleme ve kaynak yeniden kullan\u0131m stratejileridir. Bu stratejiler, uygulaman\u0131n bellek ayak izini azalt\u0131r ve UI g\u00fcncellemelerinin \u00e7ok daha h\u0131zl\u0131 ger\u00e7ekle\u015fmesini sa\u011flar. Litho, birden fazla seviyede \u00f6nbellekleme yaparak performans\u0131 maksimize eder. Bu mekanizmalar, bile\u015fenlerin tekrar tekrar olu\u015fturulmas\u0131 veya pahal\u0131 layout hesaplamalar\u0131n\u0131n tekrarlanmas\u0131 gibi gereksiz i\u015f y\u00fck\u00fcn\u00fc ortadan kald\u0131r\u0131r.<\/p>\n<h3>Mount Content Pooling (G\u00f6rsel \u0130\u00e7erik Havuzlama) Nedir?<\/h3>\n<p>Geleneksel Android&#8217;de, bir <code>RecyclerView<\/code>&#8216;da \u00f6\u011fe g\u00f6r\u00fcn\u00fcmden \u00e7\u0131kt\u0131\u011f\u0131nda, o View nesnesi geri d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr ve yeni verilerle doldurulur. Litho da benzer bir konsepte sahiptir, ancak bunu \u00e7ok daha ince taneli bir \u015fekilde y\u00f6netir. Litho, bile\u015fenler ekranda g\u00f6r\u00fcnd\u00fc\u011f\u00fcnde onlar\u0131 ger\u00e7ek <code>View<\/code> veya <code>Drawable<\/code> nesnelerine ba\u011flar (mount eder). Bu <code>View<\/code> veya <code>Drawable<\/code> nesneleri, g\u00f6r\u00fcn\u00fcmden \u00e7\u0131kt\u0131klar\u0131nda do\u011frudan yok edilmek yerine, bir havuza (pool) geri d\u00f6nd\u00fcr\u00fcl\u00fcr. Bu havuza &#8220;Mount Content Pool&#8221; denir.<\/p>\n<p>Bir bile\u015fen tekrar ekranda g\u00f6sterilmesi gerekti\u011finde, Litho havuzdan uygun bir nesneyi alarak (e\u011fer varsa) yeniden kullan\u0131r. Bu, yeni bir nesne olu\u015fturman\u0131n ve ba\u015flatman\u0131n getirdi\u011fi pahal\u0131 maliyetten ka\u00e7\u0131nmay\u0131 sa\u011flar. \u00d6zellikle kayd\u0131rma listelerinde, bu mekanizma sayesinde UI \u00f6\u011felerinin olu\u015fturulmas\u0131 ve yok edilmesi yerine s\u00fcrekli olarak yeniden kullan\u0131lmas\u0131, ak\u0131c\u0131 bir kayd\u0131rma deneyimi sunar ve bellek tahsislerini (allocations) azalt\u0131r. B\u00f6ylece, gereksiz \u00e7\u00f6p toplama (garbage collection) i\u015flemleri engellenir ve genel uygulama yan\u0131t verme h\u0131z\u0131 art\u0131r\u0131l\u0131r.<\/p>\n<h3>Layout Caching ve shouldUpdate Mekanizmas\u0131 Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n<p>Litho, layout hesaplamalar\u0131n\u0131 da ak\u0131ll\u0131ca \u00f6nbelle\u011fe al\u0131r. Bir bile\u015fenin layout&#8217;u, o bile\u015fenin props&#8217;lar\u0131na (\u00f6zelliklerine) ve state&#8217;ine (durumuna) ba\u011fl\u0131d\u0131r. E\u011fer bir bile\u015fenin props&#8217;lar\u0131 ve state&#8217;i de\u011fi\u015fmediyse, Litho \u00f6nceki layout hesaplamalar\u0131n\u0131 yeniden kullanabilir. Bu, <code>shouldUpdate<\/code> ad\u0131 verilen bir mekanizma arac\u0131l\u0131\u011f\u0131yla kontrol edilir. Her bile\u015fen, bu methodu override ederek kendi g\u00fcncellemelerinin ne zaman gerekli oldu\u011funu belirleyebilir. Varsay\u0131lan olarak, Litho, bile\u015fenlerin t\u00fcm props&#8217;lar\u0131n\u0131 ve state&#8217;ini kar\u015f\u0131la\u015ft\u0131rarak bir de\u011fi\u015fiklik olup olmad\u0131\u011f\u0131n\u0131 kontrol eder. Ancak karma\u015f\u0131k bile\u015fenlerde, bu kar\u015f\u0131la\u015ft\u0131rma pahal\u0131 olabilir veya gereksiz g\u00fcncellemeleri tetikleyebilir.<\/p>\n<p>Geli\u015ftiriciler, <code>shouldUpdate<\/code> methodunu \u00f6zel olarak uygulayarak performans\u0131 daha da optimize edebilirler. \u00d6rne\u011fin, sadece belirli kritik props&#8217;lar\u0131n de\u011fi\u015fimi durumunda bile\u015fenin g\u00fcncellenmesini sa\u011flayabilirsiniz. A\u015fa\u011f\u0131daki kod blo\u011fu, <code>shouldUpdate<\/code>&#8216;in nas\u0131l kullan\u0131labilece\u011fine dair bir \u00f6rnektir:<\/p>\n<pre><code>\n  @LayoutSpec\n  public class MyListItemSpec {\n    @OnCreateLayout\n    static Component onCreateLayout(\n        ComponentContext c,\n        @Prop String title,\n        @Prop String subtitle,\n        @Prop int imageResId) {\n      return Column.create(c)\n          .child(Text.create(c).text(title))\n          .child(Text.create(c).text(subtitle))\n          .child(Image.create(c).drawableRes(imageResId))\n          .build();\n    }\n\n    \/\/ Yaln\u0131zca ba\u015fl\u0131k veya resim de\u011fi\u015fti\u011finde yeniden \u00e7iz\n    @ShouldUpdate(onMount = true)\n    static boolean shouldUpdate(\n        @Prop(diff = Prop.Diff.class) String oldTitle,\n        @Prop String newTitle,\n        @Prop(diff = Prop.Diff.class) int oldImageResId,\n        @Prop int newImageResId) {\n      return !oldTitle.equals(newTitle) || oldImageResId != newImageResId;\n    }\n  }\n  <\/pre>\n<p><\/code><\/p>\n<p>Bu \u00f6rnekte, <code>shouldUpdate<\/code> methodu sadece <code>title<\/code> veya <code>imageResId<\/code> prop'lar\u0131n\u0131n de\u011fi\u015fip de\u011fi\u015fmedi\u011fini kontrol eder. E\u011fer <code>subtitle<\/code> prop'u de\u011fi\u015firse, ancak <code>title<\/code> ve <code>imageResId<\/code> ayn\u0131 kal\u0131rsa, bile\u015fen yeniden render edilmeyecektir. Bu, gereksiz UI g\u00fcncellemelerini \u00f6nleyerek performans\u0131 art\u0131r\u0131r. Bu \u00f6zelle\u015ftirme sayesinde, uygulaman\u0131z\u0131n yaln\u0131zca ger\u00e7ekten ihtiya\u00e7 duydu\u011fu zamanlarda UI g\u00fcncellemeleri yapmas\u0131 sa\u011flan\u0131r, bu da daha h\u0131zl\u0131 ve daha ak\u0131c\u0131 bir kullan\u0131c\u0131 deneyimine yol a\u00e7ar.<\/p>\n<h2>Uygulamal\u0131 Performans Optimizasyonu: Litho ile H\u0131zl\u0131 ve Ak\u0131c\u0131 Aray\u00fczler Nas\u0131l Geli\u015ftirilir?<\/h2>\n<p>Litho'nun temel \u00f6nbellekleme mekanizmalar\u0131n\u0131n \u00f6tesinde, geli\u015ftiricilerin uygulamalar\u0131n\u0131 daha da h\u0131zland\u0131rmak i\u00e7in kullanabilece\u011fi bir dizi ileri d\u00fczey optimizasyon stratejisi bulunmaktad\u0131r. Bu stratejiler, \u00f6zellikle karma\u015f\u0131k listeler, yo\u011fun g\u00f6rseller ve dinamik i\u00e7eriklerle dolu uygulamalar i\u00e7in hayati \u00f6neme sahiptir.<\/p>\n<h3>Asenkron D\u00fczen Hesaplamalar\u0131 ve D\u00fcz Hiyerar\u015fi<\/h3>\n<p>Litho'nun en b\u00fcy\u00fck avantajlar\u0131ndan biri, d\u00fczen hesaplamalar\u0131n\u0131 ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z olarak ger\u00e7ekle\u015ftirmesidir. Bu, uygulaman\u0131n UI'\u0131 g\u00fcncellerken donmamas\u0131 veya tak\u0131lmamas\u0131 anlam\u0131na gelir. Geli\u015ftiriciler, bu \u00f6zelli\u011fi en iyi \u015fekilde kullanmak i\u00e7in Component hiyerar\u015filerini m\u00fcmk\u00fcn oldu\u011funca d\u00fcz tutmaya \u00f6zen g\u00f6stermelidir. Yoga layout motoru, i\u00e7 i\u00e7e ge\u00e7mi\u015f View gruplar\u0131n\u0131 ortadan kald\u0131rarak performans\u0131 art\u0131r\u0131r. \u00c7ok derin View hiyerar\u015fileri, geleneksel sistemlerde \"View Hell\" olarak bilinen duruma yol a\u00e7abilir ve performans d\u00fc\u015f\u00fc\u015flerine neden olur. Litho, bile\u015fenleri kullanarak ve Yoga'n\u0131n g\u00fcc\u00fcyle bu sorunu temelden \u00e7\u00f6zer.<\/p>\n<p>\u00d6rne\u011fin, karma\u015f\u0131k bir liste \u00f6\u011fesi tasarlarken, geleneksel olarak bir <code>CardView<\/code> i\u00e7ine bir <code>LinearLayout<\/code>, onun i\u00e7ine ba\u015fka <code>LinearLayout<\/code>'lar ve <code>TextView<\/code>'lar yerle\u015ftirmek zorunda kalabilirsiniz. Litho'da ise bu, tek bir bile\u015fen a\u011fac\u0131nda daha az katmanla temsil edilebilir. B\u00f6ylece, render i\u015flemleri daha verimli hale gelir ve UI ak\u0131c\u0131l\u0131\u011f\u0131 art\u0131r\u0131l\u0131r.<\/p>\n<h3>Kaynak Havuzlama ve Image Loading Entegrasyonu<\/h3>\n<p>G\u00f6rseller, mobil uygulamalarda genellikle en \u00e7ok bellek t\u00fcketen ve performans\u0131 etkileyen \u00f6\u011felerdir. Litho, g\u00f6rsel kaynaklar\u0131n ve hatta metinlerin havuzlanmas\u0131 (pooling) i\u00e7in g\u00fc\u00e7l\u00fc mekanizmalar sunar. \u00d6zellikle b\u00fcy\u00fck g\u00f6rsel setleri y\u00f6netmek i\u00e7in Facebook'un di\u011fer bir a\u00e7\u0131k kaynak k\u00fct\u00fcphanesi olan Fresco ile sorunsuz bir entegrasyon sa\u011flar. Fresco, g\u00f6rsellerin belle\u011fe y\u00fcklenmesi, \u00f6nbelle\u011fe al\u0131nmas\u0131, g\u00f6r\u00fcnt\u00fclenmesi ve a\u011fdan indirilmesi s\u00fcre\u00e7lerini optimize eder.<\/p>\n<pre><code>\n  @LayoutSpec\n  public class MyImageComponentSpec {\n    @OnCreateLayout\n    static Component onCreateLayout(\n        ComponentContext c,\n        @Prop String imageUrl) {\n      return Image.create(c)\n          .uri(imageUrl)\n          .with(FrescoImage.create(c)) \/\/ Fresco entegrasyonu\n          .widthRes(R.dimen.my_image_width)\n          .heightRes(R.dimen.my_image_height)\n          .build();\n    }\n  }\n  <\/pre>\n<p><\/code><\/p>\n<p>Fresco entegrasyonu sayesinde, Litho bile\u015fenleri g\u00f6rselleri verimli bir \u015fekilde y\u00f6netebilir, bellekteki kopyalar\u0131n\u0131 azaltabilir ve p\u00fcr\u00fczs\u00fcz bir kayd\u0131rma deneyimi sunabilir. Bu, \u00f6zellikle sosyal medya ak\u0131\u015flar\u0131 veya e-ticaret \u00fcr\u00fcn listeleri gibi g\u00f6rsel yo\u011fun uygulamalarda kritik \u00f6neme sahiptir.<\/p>\n<h3>ComponentTree.acquire ve release ile Manuel Kaynak Y\u00f6netimi<\/h3>\n<p>\u00c7o\u011fu durumda, Litho otomatik kaynak y\u00f6netimi yapar. Ancak baz\u0131 ileri d\u00fczey senaryolarda, \u00f6zellikle de karma\u015f\u0131k navigasyon kal\u0131plar\u0131na sahip uygulamalarda veya bile\u015fenlerin ya\u015fam d\u00f6ng\u00fcs\u00fcn\u00fc daha yak\u0131ndan kontrol etmek istedi\u011finizde, <code>ComponentTree.acquire<\/code> ve <code>release<\/code> methodlar\u0131n\u0131 kullanabilirsiniz. Bu methodlar, bile\u015fen a\u011fa\u00e7lar\u0131n\u0131n manuel olarak havuzdan al\u0131nmas\u0131n\u0131 ve havuza geri d\u00f6nd\u00fcr\u00fclmesini sa\u011flar. Bu, \u00f6zellikle bir bile\u015fen a\u011fac\u0131n\u0131n s\u0131k s\u0131k olu\u015fturulup yok edildi\u011fi ve ard\u0131ndan tekrar olu\u015fturulmas\u0131 gereken durumlarda performans\u0131 art\u0131rabilir. Bellek ve CPU kullan\u0131m\u0131 \u00fczerinde daha hassas kontrol sa\u011flaman\u0131za olanak tan\u0131r.<\/p>\n<div class=\"expert-tip\">Uzman \u0130pucu: \u00c7ok say\u0131da k\u00fc\u00e7\u00fck, s\u0131k g\u00fcncellenen bile\u015fen yerine, mant\u0131ksal olarak birbiriyle ili\u015fkili \u00f6\u011feleri tek bir bile\u015fen i\u00e7inde gruplayarak gereksiz <code>shouldUpdate<\/code> \u00e7a\u011fr\u0131lar\u0131n\u0131 ve yeniden render i\u015flemlerini azaltabilirsiniz. Bu, Litho'nun dahili optimizasyonlar\u0131ndan daha iyi faydalanman\u0131z\u0131 sa\u011flar.<\/div>\n<h2>Ger\u00e7ek D\u00fcnya Ba\u015far\u0131 Hikayeleri: Litho B\u00fcy\u00fck \u00d6l\u00e7ekli Uygulamalarda Nas\u0131l Fark Yarat\u0131r?<\/h2>\n<p>Litho'nun teorik avantajlar\u0131 kula\u011fa harika gelse de, ger\u00e7ek d\u00fcnya uygulamalar\u0131nda nas\u0131l bir performans art\u0131\u015f\u0131 sa\u011flad\u0131\u011f\u0131n\u0131 g\u00f6rmek daha ikna edicidir. Facebook'un kendisi, Litho'nun en b\u00fcy\u00fck ve en ba\u015far\u0131l\u0131 uygulay\u0131c\u0131s\u0131d\u0131r. Facebook'un ana mobil uygulamas\u0131, Instagram ve Pages gibi di\u011fer uygulamalar\u0131, Litho'yu kullanarak milyonlarca kullan\u0131c\u0131n\u0131n g\u00fcnl\u00fck deneyimini geli\u015ftirmi\u015ftir.<\/p>\n<h3>Facebook'un Pages Uygulamas\u0131ndaki Ba\u015far\u0131s\u0131<\/h3>\n<p>Facebook Pages uygulamas\u0131, ba\u015flang\u0131\u00e7ta geleneksel Android View'lar\u0131 kullan\u0131yordu ve \u00f6zellikle yava\u015f a\u011f ba\u011flant\u0131lar\u0131nda veya eski cihazlarda performans sorunlar\u0131 ya\u015f\u0131yordu. Uygulama i\u00e7i ak\u0131\u015flar, yorumlar ve \u00e7oklu g\u00f6rsel i\u00e7erikler nedeniyle karma\u015f\u0131k UI'lara sahipti. Facebook ekibi, Litho'ya ge\u00e7i\u015f yaparak \u00f6nemli iyile\u015ftirmeler elde etti. Litho'nun asenkron layout hesaplamalar\u0131 ve Component pooling yetenekleri sayesinde:<\/p>\n<ul>\n<li><strong>Ak\u0131\u015f Kayd\u0131rma Ak\u0131c\u0131l\u0131\u011f\u0131:<\/strong> Kayd\u0131rma s\u0131ras\u0131nda tak\u0131lmalar ve gecikmeler b\u00fcy\u00fck \u00f6l\u00e7\u00fcde azald\u0131, kullan\u0131c\u0131 deneyimi p\u00fcr\u00fczs\u00fcz hale geldi.<\/li>\n<li><strong>UI G\u00fcncelleme H\u0131z\u0131:<\/strong> Yorum ekleme veya be\u011fenme gibi etkile\u015fimlerde UI'\u0131n an\u0131nda yan\u0131t vermesi sa\u011fland\u0131.<\/li>\n<li><strong>Bellek Kullan\u0131m\u0131:<\/strong> Kaynaklar\u0131n verimli bir \u015fekilde havuzlanmas\u0131 ve yeniden kullan\u0131lmas\u0131yla bellek ayak izi azald\u0131.<\/li>\n<li><strong>Geli\u015ftirici Verimlili\u011fi:<\/strong> Deklaratif UI yakla\u015f\u0131m\u0131, karma\u015f\u0131k aray\u00fczlerin daha h\u0131zl\u0131 geli\u015ftirilmesine ve bak\u0131m\u0131n\u0131n kolayla\u015fmas\u0131na yard\u0131mc\u0131 oldu.<\/li>\n<\/ul>\n<p>Bu, Litho'nun sadece k\u00fc\u00e7\u00fck iyile\u015ftirmeler sunmakla kalmay\u0131p, b\u00fcy\u00fck \u00f6l\u00e7ekli ve yo\u011fun trafikli uygulamalar\u0131n performans\u0131n\u0131 temelden de\u011fi\u015ftirebilece\u011finin somut bir kan\u0131t\u0131d\u0131r.<\/p>\n<h3>Hipotez: E-ticaret Uygulamas\u0131 \u00dcr\u00fcn Ak\u0131\u015f\u0131 Optimizasyonu<\/h3>\n<p>Diyelim ki, binlerce \u00fcr\u00fcn\u00fcn listelendi\u011fi, g\u00f6rsellerle dolu ve dinamik i\u00e7eriklere sahip bir e-ticaret uygulaman\u0131z var. Geleneksel View sistemiyle, bu t\u00fcr bir \u00fcr\u00fcn ak\u0131\u015f\u0131 genellikle a\u015fa\u011f\u0131daki sorunlar\u0131 ya\u015fatabilir:<\/p>\n<ol>\n<li>Kayd\u0131rma s\u0131ras\u0131nda mikrolag'ler (k\u00fc\u00e7\u00fck tak\u0131lmalar), \u00f6zellikle g\u00f6rseller y\u00fcklenirken.<\/li>\n<li>Farkl\u0131 \u00fcr\u00fcn kartlar\u0131n\u0131n karma\u015f\u0131k d\u00fczenleri nedeniyle View hiyerar\u015fisinin derinle\u015fmesi.<\/li>\n<li>\u00dcr\u00fcn detay sayfas\u0131na gidip gelirken veya filtreleme uygularken olu\u015fan yava\u015f UI g\u00fcncellemeleri.<\/li>\n<\/ol>\n<p>Bu senaryoda Litho'ya ge\u00e7i\u015f, a\u015fa\u011f\u0131daki faydalar\u0131 sa\u011flayacakt\u0131r:<\/p>\n<ul>\n<li><strong>P\u00fcr\u00fczs\u00fcz \u00dcr\u00fcn Listelemesi:<\/strong> \u00dcr\u00fcn kartlar\u0131 i\u00e7in Litho bile\u015fenleri kullan\u0131ld\u0131\u011f\u0131nda, her bir kart\u0131n layout hesaplamas\u0131 ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z yap\u0131l\u0131r. G\u00f6rseller Fresco ile entegre edilerek optimize edilmi\u015f bir \u015fekilde y\u00fcklenir ve \u00f6nbelle\u011fe al\u0131n\u0131r. Bu sayede kullan\u0131c\u0131, kayd\u0131rma yaparken hi\u00e7bir tak\u0131lma hissetmez.<\/li>\n<li><strong>Dinamik Kart Yap\u0131lar\u0131:<\/strong> Farkl\u0131 t\u00fcrdeki \u00fcr\u00fcnler (indirimli \u00fcr\u00fcnler, yeni \u00fcr\u00fcnler, \u00f6nerilen \u00fcr\u00fcnler vb.) i\u00e7in farkl\u0131 bile\u015fenler tan\u0131mlanabilir. Litho, bu bile\u015fenleri verimli bir \u015fekilde bir araya getirir ve g\u00fcnceller, hiyerar\u015fiyi d\u00fcz tutar.<\/li>\n<li><strong>H\u0131zl\u0131 Filtreleme ve S\u0131ralama:<\/strong> Filtreleme veya s\u0131ralama i\u015flemi sonucunda \u00fcr\u00fcn listesi g\u00fcncellendi\u011finde, Litho'nun ak\u0131ll\u0131 g\u00fcncelleme mekanizmalar\u0131 sadece de\u011fi\u015fen \u00f6\u011feleri yeniden render eder, bu da an\u0131nda UI geri bildirimi sa\u011flar.<\/li>\n<\/ol>\n<p>A\u015fa\u011f\u0131daki tablo, geleneksel View sistemi ile Litho aras\u0131ndaki temel performans farklar\u0131n\u0131 \u00f6zetlemektedir:<\/p>\n<table>\n<thead>\n<tr>\n<th data-label=\"\u00d6zellik\">\u00d6zellik<\/th>\n<th data-label=\"Geleneksel View\">Geleneksel View<\/th>\n<th data-label=\"Litho\">Litho<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td data-label=\"\u00d6zellik\">Layout Hesaplamas\u0131<\/td>\n<td data-label=\"Geleneksel View\">Ana i\u015f par\u00e7ac\u0131\u011f\u0131nda (main thread)<\/td>\n<td data-label=\"Litho\">Ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z (off-main thread)<\/td>\n<\/tr>\n<tr>\n<td data-label=\"\u00d6zellik\">UI Hiyerar\u015fisi<\/td>\n<td data-label=\"Geleneksel View\">Derin ve i\u00e7 i\u00e7e ge\u00e7mi\u015f olabilir<\/td>\n<td data-label=\"Litho\">D\u00fcz ve optimize edilmi\u015f (Yoga ile)<\/td>\n<\/tr>\n<tr>\n<td data-label=\"\u00d6zellik\">G\u00f6rsel Y\u00f6netimi<\/td>\n<td data-label=\"Geleneksel View\">Manuel veya \u00fc\u00e7\u00fcnc\u00fc parti k\u00fct\u00fcphanelerle ek y\u00fck<\/td>\n<td data-label=\"Litho\">Fresco ile entegre, otomatik havuzlama<\/td>\n<\/tr>\n<tr>\n<td data-label=\"\u00d6zellik\">\u00d6nbellekleme<\/td>\n<td data-label=\"Geleneksel View\">RecyclerView ile s\u0131n\u0131rl\u0131 View geri d\u00f6n\u00fc\u015f\u00fcm\u00fc<\/td>\n<td data-label=\"Litho\">Mount Content Pooling, Layout Caching, <code>shouldUpdate<\/code><\/td>\n<\/tr>\n<tr>\n<td data-label=\"\u00d6zellik\">Performans (Kayd\u0131rma)<\/td>\n<td data-label=\"Geleneksel View\">Yo\u011fun UI'da tak\u0131lmalar ya\u015fayabilir<\/td>\n<td data-label=\"Litho\">\u00c7ok daha ak\u0131c\u0131 ve p\u00fcr\u00fczs\u00fcz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bu vaka analizleri ve kar\u015f\u0131la\u015ft\u0131rmalar, Litho'nun sadece performans art\u0131\u015f\u0131 sa\u011flamakla kalmay\u0131p, ayn\u0131 zamanda karma\u015f\u0131k mobil aray\u00fczlerin geli\u015ftirilmesini de basitle\u015ftiren g\u00fc\u00e7l\u00fc bir ara\u00e7 oldu\u011funu g\u00f6stermektedir. Geli\u015ftiriciler, Litho'nun sundu\u011fu avantajlar\u0131 kullanarak, kullan\u0131c\u0131lar\u0131na ger\u00e7ekten etkileyici ve sorunsuz deneyimler sunabilirler.<\/p>\n<h2>\u0130leri D\u00fczey \u0130pu\u00e7lar\u0131 ve En \u0130yi Uygulamalar: Litho Performans\u0131n\u0131 Maksimuma \u00c7\u0131karmak \u0130\u00e7in Neler Yapmal\u0131y\u0131z?<\/h2>\n<p>Litho'nun temel ve uygulamal\u0131 optimizasyonlar\u0131n\u0131 anlad\u0131ktan sonra, performans\u0131 bir \u00fcst seviyeye ta\u015f\u0131mak i\u00e7in baz\u0131 ileri d\u00fczey teknikleri ve en iyi uygulamalar\u0131 benimsemek faydal\u0131 olacakt\u0131r. Bu ipu\u00e7lar\u0131, \u00f6zellikle b\u00fcy\u00fck ve karma\u015f\u0131k uygulamalarda g\u00f6zle g\u00f6r\u00fcl\u00fcr iyile\u015ftirmeler sa\u011flayabilir.<\/p>\n<h3>Mount Spec vs. Layout Spec Anlamak<\/h3>\n<p>Litho bile\u015fenleri iki ana kategoriye ayr\u0131l\u0131r: <code>LayoutSpec<\/code> ve <code>MountSpec<\/code>. <code>LayoutSpec<\/code>'ler, sadece di\u011fer bile\u015fenlerin d\u00fczenini tan\u0131mlayan ve kendileri bir View \u00e7izimi yapmayan bile\u015fenlerdir (\u00f6rne\u011fin, <code>Column<\/code>, <code>Row<\/code>, <code>Wrapper<\/code>). <code>MountSpec<\/code>'ler ise ekranda ger\u00e7ekten bir \u015feyler \u00e7izen (\u00f6rne\u011fin, <code>Text<\/code>, <code>Image<\/code>, \u00f6zel \u00e7izimler yapan <code>Drawable<\/code>'lar veya <code>View<\/code>'lar) bile\u015fenlerdir. Performans a\u00e7\u0131s\u0131ndan, m\u00fcmk\u00fcn oldu\u011funca <code>LayoutSpec<\/code> kullanmaya \u00e7al\u0131\u015f\u0131n. \u00c7\u00fcnk\u00fc <code>MountSpec<\/code>'ler, ger\u00e7ek View veya Drawable nesnelerinin olu\u015fturulmas\u0131n\u0131 ve y\u00f6netilmesini gerektirir, bu da <code>LayoutSpec<\/code>'lere g\u00f6re daha maliyetlidir. Bile\u015fen hiyerar\u015finizi d\u00fcz tutarken, m\u00fcmk\u00fcn oldu\u011funca az <code>MountSpec<\/code> kullanmak, genel render performans\u0131n\u0131 art\u0131racakt\u0131r.<\/p>\n<h3>Litho Debug Ara\u00e7lar\u0131 ve Performans Profillemesi<\/h3>\n<p>Performans optimizasyonu, \u00f6l\u00e7\u00fcmleme olmadan k\u00f6rlemece bir \u00e7abad\u0131r. Litho, geli\u015ftiricilere performans sorunlar\u0131n\u0131 tespit etmeleri i\u00e7in bir dizi g\u00fc\u00e7l\u00fc hata ay\u0131klama arac\u0131 sunar. Bunlardan en \u00f6nemlileri \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>Systrace Entegrasyonu:<\/strong> Android'in yerle\u015fik Systrace arac\u0131, uygulaman\u0131z\u0131n ana i\u015f par\u00e7ac\u0131\u011f\u0131nda ve Litho'nun arka plandaki i\u015f par\u00e7ac\u0131klar\u0131nda neler olup bitti\u011fini ayr\u0131nt\u0131l\u0131 olarak g\u00f6sterir. Litho, layout hesaplamalar\u0131n\u0131 ve mount i\u015flemlerini Systrace'e kaydederek, hangi bile\u015fenin ne kadar s\u00fcre ald\u0131\u011f\u0131n\u0131 g\u00f6rselle\u015ftirmenizi sa\u011flar. Bu, darbo\u011fazlar\u0131 bulmak i\u00e7in paha bi\u00e7ilmez bir ara\u00e7t\u0131r.<\/li>\n<li><strong>Litho Debug Uygulamas\u0131:<\/strong> Litho'nun kendi hata ay\u0131klama uygulamas\u0131, \u00e7al\u0131\u015fan bir Litho uygulamas\u0131n\u0131n bile\u015fen a\u011fac\u0131n\u0131 ger\u00e7ek zamanl\u0131 olarak incelemenizi sa\u011flar. Bu ara\u00e7la, yanl\u0131\u015f yerle\u015ftirilmi\u015f bile\u015fenleri, gereksiz g\u00fcncellemeleri ve bellek s\u0131z\u0131nt\u0131lar\u0131n\u0131 tespit edebilirsiniz.<\/li>\n<\/ul>\n<p>Bu ara\u00e7lar\u0131 kullanarak, uygulaman\u0131z\u0131n performans metriklerini s\u00fcrekli olarak izleyin ve optimizasyonlar\u0131n\u0131z\u0131n ger\u00e7ek d\u00fcnya etkisini de\u011ferlendirin. Profilleme, hangi alanlara odaklanman\u0131z gerekti\u011fini size net bir \u015fekilde g\u00f6sterecektir.<\/p>\n<h3>Pahal\u0131 shouldUpdate Kontrollerinden Ka\u00e7\u0131nmak<\/h3>\n<p>Daha \u00f6nce bahsetti\u011fimiz <code>shouldUpdate<\/code> mekanizmas\u0131, performans\u0131 art\u0131rmak i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r ancak yanl\u0131\u015f kullan\u0131l\u0131rsa kendi ba\u015f\u0131na bir performans darbo\u011faz\u0131 haline gelebilir. E\u011fer <code>shouldUpdate<\/code> methodunuz karma\u015f\u0131k hesaplamalar yap\u0131yor, b\u00fcy\u00fck veri yap\u0131lar\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131r\u0131yor veya yo\u011fun d\u00f6ng\u00fcler i\u00e7eriyorsa, bu, her g\u00fcncelleme kontrol\u00fcnde pahal\u0131 bir maliyet yaratabilir. <code>shouldUpdate<\/code> i\u00e7inde sadece gerekli ve h\u0131zl\u0131 kar\u015f\u0131la\u015ft\u0131rmalar yapmaya \u00f6zen g\u00f6sterin. E\u011fer karma\u015f\u0131k bir kar\u015f\u0131la\u015ft\u0131rma gerekiyorsa, bunu d\u0131\u015far\u0131da hesaplay\u0131p \u00f6nbelle\u011fe alabilir ve <code>shouldUpdate<\/code> i\u00e7inde sadece \u00f6nbelle\u011fe al\u0131nm\u0131\u015f de\u011ferleri kar\u015f\u0131la\u015ft\u0131rabilirsiniz. \u0130mmuable (de\u011fi\u015fmez) veri yap\u0131lar\u0131 kullanmak, bu kar\u015f\u0131la\u015ft\u0131rmalar\u0131 daha verimli hale getirir.<\/p>\n<div class=\"expert-tip\">Uzman \u0130pucu: Litho uygulaman\u0131zda p\u00fcr\u00fczs\u00fcz kayd\u0131rma elde etmek i\u00e7in, <code>RecyclerView<\/code> ile Litho'nun <code>LithoView<\/code>'lerini kullan\u0131rken <code>clipToPadding(false)<\/code> ve <code>setHasFixedSize(true)<\/code> gibi <code>RecyclerView<\/code> optimizasyonlar\u0131n\u0131 da g\u00f6z \u00f6n\u00fcnde bulundurun. Bu k\u00fc\u00e7\u00fck ayarlar bile performansa \u00f6nemli katk\u0131 sa\u011flayabilir.<\/div>\n<h3>Duyarl\u0131 Tasar\u0131m i\u00e7in Mobil Uyumlu HTML \u00d6rnekleri<\/h3>\n<p>Litho, Android taraf\u0131nda UI olu\u015ftururken, modern web geli\u015ftirme prensiplerine benzer bir \u015fekilde \"bile\u015fen tabanl\u0131\" ve \"duyarl\u0131\" tasar\u0131mlar\u0131 te\u015fvik eder. Web taraf\u0131nda, mobil uyumlu tasar\u0131mlar genellikle CSS media query'leri ile sa\u011flan\u0131r. Litho do\u011frudan HTML kullanmasa da, benzer bir mant\u0131kla farkl\u0131 ekran boyutlar\u0131na ve y\u00f6nlendirmelere g\u00f6re bile\u015fenlerin d\u00fczenini dinamik olarak adapte edebiliriz. A\u015fa\u011f\u0131da, web taraf\u0131nda medya sorgular\u0131n\u0131n nas\u0131l kullan\u0131ld\u0131\u011f\u0131na dair bir \u00f6rnek verilmi\u015ftir. Bu, Litho'daki boyut ve layout esnekli\u011fini anlamaya yard\u0131mc\u0131 olabilir:<\/p>\n<pre><code>\n  <style>\n    .content-block {\n      width: 100%;\n      padding: 20px;\n      box-sizing: border-box;\n    }\n\n    .image-gallery {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 10px;\n    }\n\n    .image-gallery img {\n      width: calc(33.33% - 10px); \/* \u00dc\u00e7 s\u00fctunlu d\u00fczen *\/\n      height: auto;\n      object-fit: cover;\n    }\n\n    @media (max-width: 768px) {\n      .content-block {\n        padding: 15px;\n      }\n      .image-gallery img {\n        width: calc(50% - 10px); \/* \u0130ki s\u00fctunlu d\u00fczen *\/\n      }\n    }\n\n    @media (max-width: 480px) {\n      .content-block {\n        padding: 10px;\n      }\n      .image-gallery img {\n        width: 100%; \/* Tek s\u00fctunlu d\u00fczen *\/\n      }\n    }\n  <\/style>\n\n  <div class=\"content-block\">\n    <h2>\u00dcr\u00fcn Galerisi<\/h2>\n    <div class=\"image-gallery\">\n      <img decoding=\"async\" src=\"product1.jpg\" alt=\"\u00dcr\u00fcn 1\">\n      <img decoding=\"async\" src=\"product2.jpg\" alt=\"\u00dcr\u00fcn 2\">\n      <img decoding=\"async\" src=\"product3.jpg\" alt=\"\u00dcr\u00fcn 3\">\n      <img decoding=\"async\" src=\"product4.jpg\" alt=\"\u00dcr\u00fcn 4\">\n    <\/div>\n  <\/div>\n  <\/pre>\n<p><\/code><\/p>\n<p>Litho'da da benzer \u015fekilde, <code>@OnCreateLayout<\/code> methodunuz i\u00e7inde, cihaz\u0131n geni\u015fli\u011fine veya y\u00f6nelimine g\u00f6re farkl\u0131 bile\u015fenler d\u00f6nd\u00fcrebilir veya <code>Yoga<\/code> prop'lar\u0131n\u0131 dinamik olarak ayarlayabilirsiniz. Bu, uygulaman\u0131z\u0131n farkl\u0131 ekran boyutlar\u0131nda ve cihazlarda en iyi \u015fekilde g\u00f6r\u00fcnmesini ve performans g\u00f6stermesini sa\u011flar. \u00d6rne\u011fin, bir liste \u00f6\u011fesinde yatay y\u00f6nde daha fazla bilgi g\u00f6sterirken, dikey y\u00f6nde daha sade bir d\u00fczen kullanabilirsiniz. Bu, kullan\u0131c\u0131 deneyimini zenginle\u015ftirirken, performans gereksinimlerini de optimize eder.<\/p>\n<h2>Sonu\u00e7: Litho ile Gelece\u011fin Mobil Deneyimlerini \u015eekillendirmek<\/h2>\n<p>Litho, mobil uygulama performans\u0131n\u0131 art\u0131rmak isteyen geli\u015ftiriciler i\u00e7in g\u00fc\u00e7l\u00fc ve yenilik\u00e7i bir \u00e7er\u00e7eve sunar. Deklaratif UI yakla\u015f\u0131m\u0131, ana i\u015f par\u00e7ac\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z layout hesaplamalar\u0131 ve ak\u0131ll\u0131 \u00f6nbellekleme mekanizmalar\u0131 sayesinde, Litho, Android uygulamalar\u0131n\u0131n kar\u015f\u0131la\u015ft\u0131\u011f\u0131 bir\u00e7ok performans sorununa k\u00f6kl\u00fc \u00e7\u00f6z\u00fcmler getirir. Mount content pooling, layout caching ve <code>shouldUpdate<\/code> gibi ak\u0131ll\u0131 stratejiler, bellek kullan\u0131m\u0131n\u0131 optimize ederken, UI g\u00fcncellemelerinin \u00e7ok daha h\u0131zl\u0131 ve ak\u0131c\u0131 olmas\u0131n\u0131 sa\u011flar.<\/p>\n<p>Ger\u00e7ek d\u00fcnya senaryolar\u0131nda, \u00f6zellikle Facebook gibi b\u00fcy\u00fck \u00f6l\u00e7ekli ve g\u00f6rsel yo\u011fun uygulamalarda kan\u0131tlanm\u0131\u015f ba\u015far\u0131s\u0131, Litho'nun potansiyelini a\u00e7\u0131k\u00e7a ortaya koymaktad\u0131r. Geli\u015ftiricilerin, performans profil ara\u00e7lar\u0131n\u0131 kullanarak darbo\u011fazlar\u0131 tespit etmeleri ve Mount Spec ile Layout Spec aras\u0131ndaki farklar\u0131 anlamalar\u0131, Litho'dan en y\u00fcksek verimi alman\u0131n anahtar\u0131d\u0131r. \u0130leri d\u00fczey ipu\u00e7lar\u0131 ve en iyi uygulamalarla birle\u015fti\u011finde, Litho, mobil uygulama geli\u015ftiricilerine sadece h\u0131zl\u0131 de\u011fil, ayn\u0131 zamanda son derece duyarl\u0131 ve kullan\u0131c\u0131 dostu aray\u00fczler olu\u015fturma yetene\u011fi kazand\u0131r\u0131r.<\/p>\n<p>Sonu\u00e7 olarak, e\u011fer uygulaman\u0131z\u0131n performans\u0131n\u0131 ciddiye al\u0131yor ve kullan\u0131c\u0131lara kusursuz bir deneyim sunmak istiyorsan\u0131z, Litho'nun ak\u0131ll\u0131 \u00f6nbellekleme ve performans optimizasyon stratejilerini ke\u015ffetmeye kesinlikle de\u011fer. Mobil uygulaman\u0131z\u0131n gelece\u011fini Litho ile \u015fekillendirmeye haz\u0131rsan\u0131z, bu \u00e7er\u00e7eve size bekledi\u011finizden \u00e7ok daha fazlas\u0131n\u0131 sunabilir.<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h3>\n<ul>\n<li>\n      <strong>Litho \u00f6\u011frenmek zor mu?<\/strong><\/p>\n<p>Litho, geleneksel Android View geli\u015ftirmeye g\u00f6re farkl\u0131 bir zihniyet gerektirir (deklaratif UI). Ancak React gibi deklaratif \u00e7er\u00e7evelere a\u015fina olanlar i\u00e7in \u00f6\u011frenme e\u011frisi daha k\u0131sa olabilir. Temel kavramlar\u0131 anlad\u0131ktan sonra, Facebook'un kapsaml\u0131 dok\u00fcmantasyonu ve topluluk deste\u011fi sayesinde rahat\u00e7a ilerleyebilirsiniz.<\/p>\n<\/li>\n<li>\n      <strong>Her Android uygulamas\u0131 i\u00e7in Litho kullanmal\u0131 m\u0131y\u0131m?<\/strong><\/p>\n<p>K\u00fc\u00e7\u00fck ve basit UI'lara sahip uygulamalar i\u00e7in geleneksel View sistemi yeterli olabilir. Litho'nun as\u0131l parlad\u0131\u011f\u0131 alanlar, karma\u015f\u0131k, dinamik listeler, \u00e7ok say\u0131da g\u00f6rsel i\u00e7eren ak\u0131\u015flar ve y\u00fcksek performans gerektiren aray\u00fczlerdir. Uygulaman\u0131z\u0131n performans gereksinimlerini de\u011ferlendirerek karar vermelisiniz.<\/p>\n<\/li>\n<li>\n      <strong>Litho, Compose ile kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda nas\u0131l bir konumda?<\/strong><\/p>\n<p>Litho ve Jetpack Compose (Android'in modern deklaratif UI arac\u0131) benzer ama\u00e7lara hizmet eder: deklaratif UI ve performans optimizasyonu. Litho, off-main thread layout ve kaynak havuzlama konusunda daha k\u00f6kl\u00fc \u00e7\u00f6z\u00fcmler sunarken, Compose daha yeni ve Kotlin ekosistemine daha entegredir. Hangi framework'\u00fc se\u00e7ece\u011finiz, projenizin mevcut durumuna, ekibinizin tecr\u00fcbesine ve uzun vadeli stratejinize ba\u011fl\u0131d\u0131r.<\/p>\n<\/li>\n<li>\n      <strong>Litho'nun hangi Android versiyonlar\u0131n\u0131 destekliyor?<\/strong><\/p>\n<p>Litho genellikle Android 4.1 (API d\u00fczeyi 16) ve \u00fczerini destekler. Ancak, en iyi performans ve kararl\u0131l\u0131k i\u00e7in daha yeni Android s\u00fcr\u00fcmlerini hedeflemek her zaman tavsiye edilir. Litho k\u00fct\u00fcphanesini projenize eklerken ba\u011f\u0131ml\u0131l\u0131klar\u0131 kontrol etmek en do\u011frusudur.<\/p>\n<\/li>\n<li>\n      <strong>Litho'nun gelece\u011fi ne durumda?<\/strong><\/p>\n<p>Litho, Facebook taraf\u0131ndan aktif olarak geli\u015ftirilmeye ve s\u00fcrd\u00fcr\u00fclmeye devam etmektedir. Facebook'un bir\u00e7ok uygulamas\u0131n\u0131n temelini olu\u015fturdu\u011fu i\u00e7in, aktif bir geli\u015ftirme s\u00fcrecine sahip olmas\u0131 beklenmektedir. Yeni \u00f6zellikler ve performans iyile\u015ftirmeleri d\u00fczenli olarak yay\u0131nlanmaktad\u0131r.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Litho: Ak\u0131ll\u0131 \u00d6nbellekleme ve Performans Optimizasyonu Mobil uygulamalar\u0131n\u0131z\u0131n performans\u0131n\u0131 Litho ile nas\u0131l zirveye ta\u015f\u0131yabilece\u011finizi merak m\u0131 ediyorsunuz? Bu&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-31650","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mobil Uygulama Performans\u0131 Neden Kritik ve Litho Nas\u0131l Bir \u00c7\u00f6z\u00fcm Sunar?<\/title>\n<meta name=\"description\" content=\"Mobil uygulamalar\u0131n\u0131z\u0131n performans\u0131n\u0131 Litho ile nas\u0131l zirveye ta\u015f\u0131yabilece\u011finizi merak m\u0131 ediyorsunuz? Bu makale, Litho&#039;nun ak\u0131ll\u0131 \u00f6nbellekleme ve render optimizasyon stratejilerini detayl\u0131ca inceliyor, ger\u00e7ek d\u00fcnya senaryolar\u0131 ve pratik \u00f6rneklerle uygulamalar\u0131n\u0131z\u0131 h\u0131zland\u0131rman\u0131n yollar\u0131n\u0131 g\u00f6steriyor.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/mobil-uygulama-performansi-neden-kritik-ve-litho-nasil-bir-cozum-sunar\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mobil Uygulama Performans\u0131 Neden Kritik ve Litho Nas\u0131l Bir \u00c7\u00f6z\u00fcm Sunar?\" \/>\n<meta property=\"og:description\" content=\"Mobil uygulamalar\u0131n\u0131z\u0131n performans\u0131n\u0131 Litho ile nas\u0131l zirveye ta\u015f\u0131yabilece\u011finizi merak m\u0131 ediyorsunuz? 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