Android9.0给系统应用添加默认权限的方法

软件平台&＃xff1a;Android9.0

硬件平台&＃xff1a;Mtk6771

        近来做产品需求开发&＃xff0c;发现首次起机或者恢复出厂设置之后&＃xff0c;app首次启动的时候&＃xff0c;会触发权限申请的提示弹窗&＃xff0c;用户可以选择授权或者拒绝&＃xff0c;会给用户造成不良体验&＃xff0c;于是琢磨了一套Framework层默认给app授权的机制&＃xff0c;具体操作如下&＃xff1a;

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
&＃43;&＃43;&＃43; b/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java
&＃64;&＃64; -359,6 &＃43;359,25 &＃64;&＃64; public final class DefaultPermissionGrantPolicy {
         String[] calendarSyncAdapterPackages &＃61; (syncAdapterPackagesProvider !&＃61; null) ?
                 syncAdapterPackagesProvider.getPackages(CalendarContract.AUTHORITY, userId) : null;
 
&＃43;        // IflyIME
&＃43;        final String iflyimePackageName &＃61; "com.iflytek.inputmethod";
&＃43;        PackageParser.Package iflyimePackage &＃61; getSystemPackage(iflyimePackageName);
&＃43;        if (iflyimePackage !&＃61; null
&＃43;                && doesPackageSupportRuntimePermissions(iflyimePackage)) {
&＃43;            grantRuntimePermissions(iflyimePackage, STORAGE_PERMISSIONS, true, userId);
&＃43;            grantRuntimePermissions(iflyimePackage, MICROPHONE_PERMISSIONS, true, userId);
&＃43;        }
&＃43;
&＃43;        // IflyOCR
&＃43;        final String iflytekOcrPackageName &＃61; "com.iflytek.ocr";
&＃43;        PackageParser.Package iflyOcrPackage &＃61; getSystemPackage(iflytekOcrPackageName);
&＃43;        if (iflyOcrPackage !&＃61; null
&＃43;                && doesPackageSupportRuntimePermissions(iflyOcrPackage)) {
&＃43;            grantRuntimePermissions(iflyOcrPackage, STORAGE_PERMISSIONS, true, userId);
&＃43;            grantRuntimePermissions(iflyOcrPackage, CAMERA_PERMISSIONS, true, userId);
&＃43;            grantRuntimePermissions(iflyOcrPackage, PHONE_PERMISSIONS, true, userId);
&＃43;        }
&＃43;
         // Installer
         final String installerPackageName &＃61; mServiceInternal.getKnownPackageName(
                 PackageManagerInternal.PACKAGE_INSTALLER, userId);

做如上修改&＃xff0c;即可给相应的app添加默认授权&＃xff5e;

MARK 一下。