[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-08-21 (世界標準時間)。"],[],[],null,["# Improve IMA load time\n\nThe IMA SDK loads dependencies to request Dynamic Ad Insertion (DAI) streams,\nmeasure viewability and report ad impressions. By initializing IMA before you\nmake a stream request, you maximize the time to load IMA dependencies before\nstream playback. This page covers how to handling IMA load times in your app.\n\nCall `ImaSdkFactory.initialize()`\n---------------------------------\n\nThe\n[`ImaSdkFactory.initialize()`](/ad-manager/dynamic-ad-insertion/sdk/android/api/reference/com/google/ads/interactivemedia/v3/api/ImaSdkFactory#initialize(android.content.Context,com.google.ads.interactivemedia.v3.api.ImaSdkSettings))\nmethod starts to preload SDK resources in advance of the first stream request.\nTo use `initialize()`, you need IMA version 3.35.1 or higher.\n\nCall `ImaSdkFactory.initialize()` on application startup, or as early in the\napplication's lifecycle as your app structure allows. The `initialize()` call\ntakes the following parameters:\n\n- **`context`**: Uses the application context, which is always available during the lifecycle of the application.\n- **`settings`** : Pass the an [`ImaSdkSettings`](/ad-manager/dynamic-ad-insertion/sdk/android/api/reference/com/google/ads/interactivemedia/v3/api/ImaSdkSettings) object with its values set. The IMA settings used in the `initialize()` call must be the same as the settings values used in the `createAdsLoader()` call. The IMA SDK utilizes these settings, particularly the language setting, for cache key. We don't recommend using test or fake values for the settings used in the `initialize()` method call, as cache misses might occur and increase ad load time.\n\nReuse the `AdsLoader` instance\n------------------------------\n\nTo improve IMA load time, we recommend you reuse the same\n[`AdsLoader`](/interactive-media-ads/docs/sdks/android/client-side/api/reference/com/google/ads/interactivemedia/v3/api/AdsLoader)\ninstance. The `AdsLoader` interface can handle multiple ad or stream requests.\nAvoid creating a new `AdsLoader` instance for each request. Creating a new\n`AdsLoader` instance requires a load time, and uses additional device resources.\n\nRequest streams in advance of playback\n--------------------------------------\n\nIf you have access to the `AdsLoader` instance prior to starting stream\nplayback, you can also call the\n[`AdsLoader.requestStream()`](/ad-manager/dynamic-ad-insertion/sdk/android/api/reference/com/google/ads/interactivemedia/v3/api/AdsLoader#requestStream(com.google.ads.interactivemedia.v3.api.StreamRequest))\nmethod early. Making this call starts loading the DAI stream. When the user\nis ready to start stream playback, call the\n[`StreamManager.init()`](/ad-manager/dynamic-ad-insertion/sdk/android/api/reference/com/google/ads/interactivemedia/v3/api/BaseManager#init())\nmethod to initialize stream playback."]]