Android 8.0系统 默认赋予应用权限

 private PackageInfo getCallingPackageInfo(String pkgName,Context context) {
        try {
            return context.getPackageManager().getPackageInfo(pkgName,
                    PackageManager.GET_PERMISSIONS);
        } catch (NameNotFoundException e) {
            Log.d("lei", "No package: " + e);
            return null;
        }
    }

    public void grantAllRuntimePermissions(String pkgName,Context context){
        PackageManager pkgManager = context.getPackageManager();
        PackageInfo mPackageInfo = getCallingPackageInfo(pkgName,context);
        UserHandle userHandle = new UserHandle(
                        UserHandle.getUserId(mPackageInfo.applicationInfo.uid));
        List<String> requestPermissions = new ArrayList<String>();
        List<PermissionInfo> permissionInfos = new ArrayList<PermissionInfo>();
        final int permissionCount = mPackageInfo.requestedPermissions.length;
        for (int i = 0; i < permissionCount; i++) {
            String requestedPermission = mPackageInfo.requestedPermissions[i];
            try {
                PermissionInfo permissionInfo = pkgManager.getPermissionInfo(requestedPermission, 0);
                if(isRuntime(permissionInfo.protectionLevel) || isRuntimeOnly(permissionInfo.protectionLevel)){
            Log.d("lei","runtime requestedPermission = "+requestedPermission);
                    permissionInfos.add(permissionInfo);
                    requestPermissions.add(requestedPermission);
                }
            } catch (PackageManager.NameNotFoundException e) {
            }

        }

        for(String permission : requestPermissions){
            pkgManager.grantRuntimePermission(mPackageInfo.packageName,
                        permission, userHandle);
        }
    }

    public boolean isRuntime(int protectionLevel) {
        return (protectionLevel & PermissionInfo.PROTECTION_MASK_BASE)
                == PermissionInfo.PROTECTION_DANGEROUS;
    }

    public boolean isRuntimeOnly(int protectionLevel) {
        return (protectionLevel & PermissionInfo.PROTECTION_FLAG_RUNTIME_ONLY) != 0;
    }