[null,null,["最后更新时间 (UTC):2025-01-24。"],[[["Starting with Google Mobile Ads SDK version 21.0.0, new optimization features enhance ad responsiveness and reduce \"Application Not Responding\" errors."],["Two optimization flags, `OPTIMIZE_INITIALIZATION` and `OPTIMIZE_AD_LOADING`, offload time-consuming tasks to background threads."],["You can enable either or both flags in your app's `AndroidManifest.xml` to optimize SDK initialization and ad loading."],["The `OPTIMIZE_INITIALIZATION` flag is most effective when `MobileAds.initialize()` is called on the main thread; otherwise, background initialization is already recommended."],["The `OPTIMIZE_AD_LOADING` flag enhances ad loading for all ad formats by shifting processing to background threads."]]],[]]