【ARTS】001-第一周(2020.05.25-2020.05.31)

一、Algorithm

  本周的算法题目和解析请戳 【leetcode】001-twoSum

 

二、Review

  《C++ Primer》英文版第一章。

 

三、Tips

  在这周的工作中,测试同事反馈预装 Amazon 后,打开 Amazon 到登录界面,会出现 Google Service Failed 提示。经过排查,此问题和预装 Google Service 和 Google Play 时的默认权限有关。

  Android 6.1 之后,权限的操作发生了变化。由安装时申请,变为使用时需要用到某项权限再申请。但有些应用在需要用到权限时,并不会申请。这就会导致问题。

  对于预装应用,我们可以在 code/frameworks/base/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java 的 grantDefaultSystemHandlerPermissions 方法中进行默认权限的配置。

 1 // gsf
 2 final String gsfPackageName = "com.google.android.gsf";
 3 PackageParser.Package gsfPackage = getSystemPackage(gsfPackageName);
 4 if (gsfPackage != null
 5     && doesPackageSupportRuntimePermissions(gsfPackage)) {
 6   grantRuntimePermissions(gsfPackage, PHONE_PERMISSIONS, userId);
 7   grantRuntimePermissions(gsfPackage, CONTACTS_PERMISSIONS, userId);
 8   grantRuntimePermissions(gsfPackage, LOCATION_PERMISSIONS, userId);
 9   grantRuntimePermissions(gsfPackage, SMS_PERMISSIONS, userId);
10   grantRuntimePermissions(gsfPackage, MICROPHONE_PERMISSIONS, userId);
11 }
12 
13 // gms
14 final String gmsPackageName = "com.google.android.gms";
15 PackageParser.Package gmsPackage = getSystemPackage(gmsPackageName);
16 if (gmsPackage != null
17     && doesPackageSupportRuntimePermissions(gmsPackage)) {
18   grantRuntimePermissions(gmsPackage, PHONE_PERMISSIONS, userId);
19   grantRuntimePermissions(gmsPackage, CONTACTS_PERMISSIONS, userId);
20   grantRuntimePermissions(gmsPackage, LOCATION_PERMISSIONS, userId);
21   grantRuntimePermissions(gmsPackage, SMS_PERMISSIONS, userId);
22   grantRuntimePermissions(gmsPackage, MICROPHONE_PERMISSIONS, userId);
23   grantRuntimePermissions(gmsPackage, STORAGE_PERMISSIONS, userId);
24   grantRuntimePermissions(gmsPackage, CALENDAR_PERMISSIONS, userId);
25 }
26 
27 // vending
28 final String vendingPackageName = "com.android.vending";
29 PackageParser.Package vendingPackage = getSystemPackage(vendingPackageName);
30 if (vendingPackage != null
31     && doesPackageSupportRuntimePermissions(vendingPackage)) {
32   grantRuntimePermissions(vendingPackage, PHONE_PERMISSIONS, userId);
33   grantRuntimePermissions(vendingPackage, CONTACTS_PERMISSIONS, userId);
34   grantRuntimePermissions(vendingPackage, LOCATION_PERMISSIONS, userId);
35   grantRuntimePermissions(vendingPackage, SMS_PERMISSIONS, userId);
36   grantRuntimePermissions(vendingPackage, MICROPHONE_PERMISSIONS, userId);
37 }

 

四、Share

  《努力就会成功》

posted @ 2020-05-31 21:54  Albert-陌尘  阅读(190)  评论(0编辑  收藏  举报