Users want more control and transparency over how their personal information is being used by applications, and expect Android, as the platform, to do more to provide that control and transparency. 用户在意个人隐私we are rolling out specific guidance for each of the Android runtime permissions, and we are holding apps developed by Google to the same standard. 权限限制To better protect sensitive user data available through these permissions, we restricted access to select use cases, such as when an app has been chosen by the user to be their default text message app. We understood that some app features using this data would no longer be allowed -- including features that many users found valuable -- and worked with you on alternatives 只有一个默认应用可以使用敏感数据， in order to prevent bad-faith developers from gaming our systems and putting our users at risk in the process, we can’t always share the reasons we’ve concluded that one account is related to another. 开发者规范，
Users want more control and transparency over how their personal information is being used by applications, and expect Android, as the platform, to do more to provide that control and transparency. 用户在意个人隐私we are rolling out specific guidance for each of the Android runtime permissions, and we are holding apps developed by Google to the same standard. 权限限制To better protect sensitive user data available through these permissions, we restricted access to select use cases, such as when an app has been chosen by the user to be their default text message app. We understood that some app features using this data would no longer be allowed -- including features that many users found valuable -- and worked with you on alternatives 只有一个默认应用可以使用敏感数据， in order to prevent bad-faith developers from gaming our systems and putting our users at risk in the process, we can’t always share the reasons we’ve concluded that one account is related to another. 开发者规范，
https://developer.android.com/training/permissions/usage-notes
《Improving the update process with your feedback 2019/04/15》