在Ionic或cordova平台下，如何从iCloud同步和检索数据库

cordova plugin add cordova-plugin-icloudkv

document.addEventListener('deviceready', function() {
  if (window.cordova && window.cordova.plugins.icloudkv) {
    var iCloudKV = window.cordova.plugins.icloudkv;
    
    iCloudKV.init(function() {
      console.log('iCloud database initialized successfully');
    }, function(error) {
      console.error('Failed to initialize iCloud database: ' + error);
    });
  } else {
    console.warn('iCloudKV plugin not available');
  }
}, false);

// 同步数据到iCloud
iCloudKV.set('key', 'value', function() {
  console.log('Data synchronized to iCloud');
}, function(error) {
  console.error('Failed to synchronize data to iCloud: ' + error);
});

// 从iCloud检索数据
iCloudKV.get('key', function(value) {
  console.log('Retrieved value from iCloud: ' + value);
}, function(error) {
  console.error('Failed to retrieve value from iCloud: ' + error);
});