查看 permission 的 PROTECTION LEVEL

1. github.com/android/pla…

2.getPackageManager().getPermissionInfo(name, 0).protectionLevel 

   public static final int PROTECTION_NORMAL = 0;

  
    public static final int PROTECTION_DANGEROUS = 1;

  
    public static final int PROTECTION_SIGNATURE = 2;

    public static final int PROTECTION_SIGNATURE_OR_SYSTEM = 3;