在cordova.plugins.diagnostic中使用Meteor不工作

Question

我使用METEOR@1.4.2.3与以下插件：

cordova:cordova-plugin-backbutton       0.3.0
cordova:cordova-plugin-camera           2.1.1
cordova:cordova-plugin-device           1.1.4
cordova:cordova-plugin-sim              1.3.2
cordova:cordova.plugins.diagnostic      2.3.16
cordova:phonegap-plugin-barcodescanner  3.0.0

我尝试为Android级别26 (从API级别22到26)实现新的正确结构，但它不起作用。

码

function onDeviceReady() {
console.log(device.cordova);

  cordova.plugins.diagnostic.requestRuntimePermissions(function(statuses) {
    for (var permission in statuses) {
        switch (statuses[permission]) {
            case cordova.plugins.diagnostic.permissionStatus.GRANTED:
                console.log("Permission granted to use " + permission);
                break;
            case cordova.plugins.diagnostic.permissionStatus.NOT_REQUESTED:
                console.log("Permission to use " + permission + " has not been requested yet");
                break;
            case cordova.plugins.diagnostic.permissionStatus.DENIED:
                console.log("Permission denied to use " + permission + " - ask again?");
                break;
            case cordova.plugins.diagnostic.permissionStatus.DENIED_ALWAYS:
                console.log("Permission permanently denied to use " + permission + " - guess we won't be using it then!");
                break;
        }
    }
}, function(error) {
    console.error("The following error occurred: " + error);
}, [
    cordova.plugins.diagnostic.permission.CAMERA,
    cordova.plugins.diagnostic.permission.WRITE_EXTERNAL_STORAGE,
    cordova.plugins.diagnostic.permission.READ_EXTERNAL_STORAGE,
    cordova.plugins.diagnostic.permission.READ_PHONE_STATE
  ]);

}

我总是收到这个错误，应用程序被冻结了：

I 20180831-10:52:52.483(2)？08-31 10:52:44.612 29275 29275 i铬:INFO:控制台(5283)“未定义的TypeError:无法读取属性‘照相机’，来源：http://localhost:12136/app/app.js?hash=4b27536f027d34508de1ae9fccb904c97e426df1 (5283)

Answer 1

欢迎来到堆栈溢出。

这样的错误消息

无法读取未定义的属性“照相机”

用于告诉您查看代码中存在.CAMERA的位置，这是以下行：

cordova.plugins.diagnostic.permission.CAMERA,

这意味着没有定义cordova.plugins.diagnostic.permission。这意味着定义了cordova.plugins.diagnostic，因此您需要检查该插件的文档。

这将告诉您在哪里查找，下一条建议是编写防御性代码，以考虑到意外情况。就像这样：

if (cordova && cordova.plugins && cordova.plugins.diagnostic && cordova.plugins.diagnostic.permission) {
  // Everything is defined, expect cordova.plugins.diagnostic.permission.CAMERA to be valid
} else {
  console.error("Something undefined in cordova.plugins.diagnostic.permission") 
}

Answer 2

我解决了问题。

我在添加插件

cordova:cordova-plugin-android-permissions  1.0.0

为了这个项目。

修改后的函数OnDeviceReady：

 function onDeviceReady() {
    console.log(device.cordova);

    var permissions = cordova.plugins.permissions;

   permissions.checkPermission(permissions.READ_PHONE_STATE, function( status ){
      if ( status.hasPermission ) {
        console.log("Yes (READ_PHONE_STATE) ");
      }
      else {
        console.warn("No (READ_PHONE_STATE) ");
        permissions.requestPermission(permissions.READ_PHONE_STATE, success, error('READ_PHONE_STATE'));
      }
    });

    permissions.checkPermission(permissions.CAMERA, function( status ){
      if ( status.hasPermission ) {
        console.log("Yes (CAMERA) ");
      }
      else {
        console.warn("No (CAMERA) ");
        permissions.requestPermission(permissions.CAMERA, success, error("CAMERA"));
      }
    });

    permissions.checkPermission(permissions.WRITE_EXTERNAL_STORAGE, function( status ){
      if ( status.hasPermission ) {
        console.log("Yes (WRITE_EXTERNAL_STORAGE) ");
      }
      else {
        console.warn("No (WRITE_EXTERNAL_STORAGE) ");   
        permissions.requestPermission(permissions.WRITE_EXTERNAL_STORAGE, 
        success,error("WRITE_EXTERNAL_STORAGE")
          );
      }
    });

    permissions.checkPermission(permissions.READ_EXTERNAL_STORAGE, function( status ){
      if ( status.hasPermission ) {
        console.log("Yes (READ_EXTERNAL_STORAGE) ");
      }
      else {
        console.warn("No (READ_EXTERNAL_STORAGE) ");
        permissions.requestPermission(permissions.READ_EXTERNAL_STORAGE, success, error('READ_EXTERNAL_STORAGE'));
      }
    });

    function error(permission4request) {
        console.warn(permission4request + ' permission is not turned on');
        console.log(permission4request + ' permission is not turned on');
    }
     fdsf

    function success( status ) {
        if( !status.hasPermission ) error();
    }

    loginLogic();
}

此代码与API级别26一起使用以请求权限。