Android系统应用默认权限设置

frameworks/base/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java 类是对默认权限管理类

我们可以通过此类来对我们系统中存在的应用进行默认权限设置。
下面举个例子，修改系统中应用存储空间权限：

    private void grantDefaultSystemHandlerPermissions(int userId) {        ...        grantStoragePermissionsToCustomApp(userId)；// add         ...    }private void grantStoragePermissionsToCustomApp(int userId){    final String []itemString = mService.mContext.getResources()        .getStringArray(com.android.internal.R.array.storage_permission_custom_packagename);    for (int i = 0; i < itemString.length; i++) {        PackageParser.Package customPackage = getPackageLPr(itemString[i]);        if ((customPackage != null) && doesPackageSupportRuntimePermissions(customPackage)) {            grantRuntimePermissionsLPw(customPackage, STORAGE_PERMISSIONS, userId);        }    }}

当然要通过一个xml文件讲我们需要默认打开的应用罗列

<?xml version="1.0" encoding="utf-8"?>    com.mediatek.datatransfer    com.android.defcontainer    com.android.calendar    com.mediatek.camera    com.android.chrome    com.android.deskclock    com.android.contacts    com.android.development    com.android.email    com.android.fmradio    com.facebook.katana    com.mediatek.filemanager    com.android.gallery3d    com.google.android.gm    com.google.android.googlequicksearchbox    com.google.android.music    com.google.android.apps.maps    com.android.mms    com.cmcm.cmx.pagetwo    com.android.dialer    com.android.soundrecorder    com.google.android.youtube    com.android.htmlviewer    com.android.launcher3    com.mediatek.lbs.em2.ui    com.mediatek.wifitest    com.mediatek.calendarimporter    com.adups.fota    com.android.sharedstoragebackup    com.android.wallpapercropper    com.android.dreams.phototable    com.android.inputmethod.latin    com.android.exchange    com.android.providers.calendar    com.mediatek.dataprotection    com.mediatek.flp.em    com.google.android.gms    com.whatsapp    com.android.browser

Android应用默认权限开启

Android系统应用默认权限设置

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