[[["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:2025-09-05 (世界標準時間)。"],[],[],null,["# Improve IMA load time\n\nThe IMA SDK loads dependencies to request ads, measure viewability and\nreport ad impressions. By initializing IMA before you make an ad request, you\nmaximize the time to load IMA dependencies before ad playback. This page covers\nhow to handling IMA load times in your app.\n\nCall `ImaSdkFactory.initialize()`\n---------------------------------\n\nThe\n[`ImaSdkFactory.initialize()`](/interactive-media-ads/docs/sdks/android/client-side/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 ad request. To\nuse `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`](/interactive-media-ads/docs/sdks/android/client-side/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 ads in advance of playback\n----------------------------------\n\nIf you have access to the `AdsLoader` instance prior to starting ad playback,\nyou can also call the\n[`AdsLoader.requestAds()`](/interactive-media-ads/docs/sdks/android/client-side/api/reference/com/google/ads/interactivemedia/v3/api/AdsLoader#requestAds(com.google.ads.interactivemedia.v3.api.AdsRequest))\nmethod early. Making this call starts loading pre-roll ads. When the user\nis ready to start content playback, call the\n[`AdsManager.init()`](/interactive-media-ads/docs/sdks/android/client-side/api/reference/com/google/ads/interactivemedia/v3/api/BaseManager#init())\nmethod and wait for the `LOADED` event to play ads."]]