Android9.0给系统应用添加默认权限的方法

软件平台：Android9.0

硬件平台：Mtk6771

        近来做产品需求开发，发现首次起机或者恢复出厂设置之后，app首次启动的时候，会触发权限申请的提示弹窗，用户可以选择授权或者拒绝，会给用户造成不良体验，于是琢磨了一套Framework层默认给app授权的机制，具体操作如下：

diff --git a/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java b/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java index 1c40347f..a1b37a1a 100644--- a/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java+++ b/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java @@ -359,6 +359,25 @@ public final class DefaultPermissionGrantPolicy {          String[] calendarSyncAdapterPackages = (syncAdapterPackagesProvider != null) ?                  syncAdapterPackagesProvider.getPackages(CalendarContract.AUTHORITY, userId) : null;  +        // IflyIME +        final String iflyimePackageName = "com.iflytek.inputmethod"; +        PackageParser.Package iflyimePackage = getSystemPackage(iflyimePackageName); +        if (iflyimePackage != null +                && doesPackageSupportRuntimePermissions(iflyimePackage)) { +            grantRuntimePermissions(iflyimePackage, STORAGE_PERMISSIONS, true, userId); +            grantRuntimePermissions(iflyimePackage, MICROPHONE_PERMISSIONS, true, userId); +        } + +        // IflyOCR +        final String iflytekOcrPackageName = "com.iflytek.ocr"; +        PackageParser.Package iflyOcrPackage = getSystemPackage(iflytekOcrPackageName); +        if (iflyOcrPackage != null +                && doesPackageSupportRuntimePermissions(iflyOcrPackage)) { +            grantRuntimePermissions(iflyOcrPackage, STORAGE_PERMISSIONS, true, userId); +            grantRuntimePermissions(iflyOcrPackage, CAMERA_PERMISSIONS, true, userId); +            grantRuntimePermissions(iflyOcrPackage, PHONE_PERMISSIONS, true, userId); +        } +          // Installer          final String installerPackageName = mServiceInternal.getKnownPackageName(                  PackageManagerInternal.PACKAGE_INSTALLER, userId);

 

做如上修改，即可给相应的app添加默认授权～

MARK 一下。