ionic2本地存储得到

时间:2018-05-02 06:15:50

标签: angular ionic2 local-storage

我刚刚开始使用ionic2,在我的应用程序中,我要求用户存储apiKey和秘密。

在本地存储中存储时工作正常,但在尝试使用存储值时遇到麻烦。

// Storing user apikey config
saveAPISettings(apiConfig) {
  let apiSettings = { apiKey: apiConfig.apiKey, apiKeySecret: apiConfig.apiKeySecret};
  this.storage.set('api-settings', JSON.stringify(apiSettings));
}

// Stored value
"api-settings": "{"apiKey":"2b749127b41927b491274b924927b412","apiKeySecret":"QEWIRP"}" 


// Getting stored apikey config
getSettings(key) {
  let results = [];
  let object;

  this.storage.get(key).then((val) => {
    object = JSON.parse(val);
    results['apiKey'] = object.apiKey;
    results['apiKeySecret'] = object.apiKeySecret;
  });
  return results;
}

enter image description here

 // getSettings usage
 let config = getSettings('api-settings');

 // getting undefined
 console.log(config.apiKey);
 or 
 console.log(config['apiKey']);

我在这里做错了什么? 谢谢你提前。

1 个答案:

答案 0 :(得分:2)

无需将对象apiSettings字符串化为仅保存为对象

Mat gray,smallImg(cvRound (img.rows/scale), cvRound(img.cols/scale), CV_8UC1);
resize( gray, smallImg, smallImg.size(), 0,0, INTER_LINEAR);

Storage.get将解析一个承诺,只需在getSettings中返回存储

this.storage.set('api-settings', apiSettings);

在您的设置页面

getSettings(key) {
  return this.storage.get(key)
}