自 2025 年 3 月 27 日起,我們建議您使用 android-latest-release
而非 aosp-main
建構及貢獻 AOSP。詳情請參閱「Android 開放原始碼計畫變更」。
限制隨機位置
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
當應用程式要求裝置的位置資訊時,可以等待要求回應,也可以使用活動位置事件監聽器,取得機會主義位置更新。這項功能在 Android 9 以下版本中可用 (不受限制),且僅在應用程式只指定主動位置更新率,而未指定被動率時才提供。(被動位置資訊監聽器不會收到隨機位置更新,因為未指定位置更新頻率)。
自 Android 10 起,如要取得機會位置更新,開發人員必須透過 FusedLocationProviderClient
類別指定需要被動位置更新。
整合式位置預測提供工具
應用程式可以透過兩種方式,指定從 FusedLocationProviderClient
類別取得即時位置更新的頻率。
影響
如果您未提供 setFastestInterval
的值,應用程式接收的位置資訊更新可能會大幅減少。
實作
您只需使用 FusedLocationProviderClient
類別 setFastestInterval
方法的建議值,即可實作這項功能。
這個頁面中的內容和程式碼範例均受《內容授權》中的授權所規範。Java 與 OpenJDK 是 Oracle 和/或其關係企業的商標或註冊商標。
上次更新時間:2025-07-27 (世界標準時間)。
[[["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:2025-07-27 (世界標準時間)。"],[],[],null,["# Restrict opportunistic locations\n\nWhen an app requests a device's location, it can either wait for\nthe request response or, by using active location listeners, get an\nopportunistic location update. This was available (unrestricted) in\nAndroid 9 and lower, and was provided when an app specified only\nthe active location update rate, leaving the passive rate blank.\n(Passive location listeners don't receive opportunistic location\nupdates because they don't specify a location update rate.)\n\nStarting in Android 10, to get opportunistic\nlocation updates, developers must specify that they need passive location\nupdates from the **[FusedLocationProviderClient](https://developers.google.com/android/reference/com/google/android/gms/location\n/FusedLocationProviderClient)** class.\n\nFused location provider\n-----------------------\n\nApps can specify the rate at which they get opportunistic location updates from the [FusedLocationProviderClient](https://developers.google.com/android/reference/com/google/android/gms/location/FusedLocationProviderClient)\nclass in two ways.\n\n- Specify a value in the [setFastestInterval](https://developers.google.com/android/reference/com/google/android/gms/location/LocationRequest.html#setFastestInterval(long)) method that's lower than the value of the [setInterval](https://developers.google.com/android/reference/com/google/android/gms/location/LocationRequest.html#setInterval(long)) parameter. (Use a value of 0 ms or greater.)\n- Let the value be set automatically by leaving [setFastestInterval](https://developers.google.com/android/reference/com/google/android/gms/location/LocationRequest.html#setFastestInterval(long)) unspecified.\n\nImpact\n------\n\nIf you don't provide a value for [setFastestInterval](https://developers.google.com/android/reference/com/google/android/gms/location/LocationRequest.html#setFastestInterval(long)),\nyour app may experience a significant\nreduction in location updates delivered to it.\n\nImplementation\n--------------\n\nYou don't need to do anything to implement this feature other\nthan to use the suggested values for the [FusedLocationProviderClient](https://developers.google.com/android/reference/com/google/android/gms/location\n/FusedLocationProviderClient) class [setFastestInterval](https://developers.google.com/android/reference/com/google/android/gms/location/LocationRequest.html#setFastestInterval(long))\nmethod."]]