Meteor apk：Uncaught TypeError：無法讀取undefined屬性'diagnostic'

Question

我正在使用Cordova診斷插件。我寫了如下所示的代碼，如插件github自述文件中提到的 但我在運行cordova應用時遇到錯誤，如下所示：Uncaught TypeError：無法讀取未定義的屬性'diagnostic'。但它在網上運行良好。

 if (Meteor.isCordova) { 
// check and request microphone access 
cordova.plugins.diagnostic.getMicrophoneAuthorizationStatus(function(status) { 
    if (status !== "GRANTED") { 
     // if we don't have them request em. 
     cordova.plugins.diagnostic.requestMicrophoneAuthorization(function(status) { 
     //... do something 
     return; 
     }); 
    } 
}, function() { 
    throw new Meteor.error('failed to get permission for microphone'); 
}); 

}

Answer 1

I am not waiting for deviceready event to get triggered.

那將是爲什麼它不工作。插件的JS元素在運行時由Cordova動態加載，因此不能保證在事件觸發前加載，這表示Cordova環境已完成設置。

流星，你這樣做使用Meteor.startup()功能：

if (Meteor.isCordova) { 
    // Wait for deviceready 
    Meteor.startup(function() { 
     // check and request microphone access 
     cordova.plugins.diagnostic.getMicrophoneAuthorizationStatus(function(status) { 
      if (status !== "GRANTED") { 
       // if we don't have them request em. 
       cordova.plugins.diagnostic.requestMicrophoneAuthorization(function(status) { 
       //... do something 
       return; 
       }); 
      } 
     }, function() { 
      throw new Meteor.error('failed to get permission for microphone'); 
     }); 
    }); 
}