小编fir*_*ole的帖子

每当我尝试在android 7.0中创建一个SQLite.Net.SQLiteConnection时,我会得到这个异常,任何想法如何修复它？我正在使用这些nuget pacakges:

<packages>
  <package id="ExifLib.PCL" version="1.0.1" targetFramework="monoandroid6" />
  <package id="Microsoft.Bcl" version="1.1.10" targetFramework="monoandroid43" />
  <package id="Microsoft.Bcl.Build" version="1.0.21" targetFramework="monoandroid43" />
  <package id="Newtonsoft.Json" version="7.0.1" targetFramework="monoandroid6" />
  <package id="SQLite.Net.Core-PCL" version="3.1.1" targetFramework="monoandroid6" />
  <package id="SQLite.Net-PCL" version="3.1.1" targetFramework="monoandroid6" />
  <package id="SQLiteNetExtensions" version="1.3.0" targetFramework="xamarinios1" />
  <package id="sqlite-net-pcl" version="1.2.1" targetFramework="monoandroid70" />
  <package id="SQLitePCL.bundle_green" version="0.9.3" targetFramework="monoandroid60" />
  <package id="SQLitePCL.plugin.sqlite3.android" version="0.9.3" targetFramework="monoandroid60" />
  <package id="SQLitePCL.raw" version="0.9.3" targetFramework="monoandroid60" />
  <package id="SQLitePCLRaw.bundle_green" version="1.1.1" targetFramework="monoandroid70" />
  <package id="SQLitePCLRaw.core" version="1.1.1" targetFramework="monoandroid70" />
  <package id="SQLitePCLRaw.lib.e_sqlite3.android" version="1.1.1" targetFramework="monoandroid70" />
  <package id="SQLitePCLRaw.provider.e_sqlite3.android" version="1.1.1" targetFramework="monoandroid70" />
  <package …

假设我有一堆bool[4][4]像这样的二维数组:

class A
{
public:
    static const int SIZE = 4;
    static constexpr bool blocks_S[SIZE][SIZE]={    {0,1,1,0},
                                                    {1,1,0,0},
                                                    {0,0,0,0},
                                                    {0,0,0,0}};
    static constexpr bool blocks_SR[SIZE][SIZE] = { {1,1,0,0},
                                                    {0,1,1,0},
                                                    {0,0,0,0},
                                                    {0,0,0,0}};
    static constexpr bool blocks_L[SIZE][SIZE] = {  {0,0,1,0},
                                                    {1,1,1,0},
                                                    {0,0,0,0},
                                                    {0,0,0,0}};
    static constexpr bool blocks_LR[SIZE][SIZE] =  {{1,1,1,0},
                                                    {0,0,1,0},
                                                    {0,0,0,0},
                                                    {0,0,0,0}};
    static constexpr bool blocks_Box[SIZE][SIZE] = {{1,1,0,0},
                                                    {1,1,0,0},
                                                    {0,0,0,0},
                                                    {0,0,0,0}};
    static constexpr bool blocks_Bar[SIZE][SIZE] = {{1,1,1,1},
                                                    {0,0,0,0},
                                                    {0,0,0,0},
                                                    {0,0,0,0}};  
};

并且我想创建一个调用的数组block_types,它包含对所有这些二维数组的引用,所以我可以这样做:block_types[0]并且接收:blocks_S.我怎样才能构造这样一个数组(不使用std::vector等),应该是什么类型block_types？我试过 …