React-Native post和get请求

post：

 1 fetchData (title) {
 2     fetch(REQUEST_URL, {
 3     method: 'POST',
 4     headers: {
 5     'Accept': 'application/json',
 6     'Content-Type': 'application/json'
 7     },
 8     body: JSON.stringify({
 9       email: un,
10       password: pw
11     })
12   })
13     .then((response) => response.json())
14     .then((responseData) => {
15       if (responseData['isOK']==='ok') {
16         ToastAndroid.show('登录成功', ToastAndroid.SHORT)
17       } else {
18         ToastAndroid.show('登录失败', ToastAndroid.SHORT)
19       }
20     })
21     .done()
22   }

1   responseData (response) {
2     return response.result.data
3   }

get：

 1 fetchData: function () {
 2     fetch(REQUEST_URL)
 3       .then((response) => response.json())
 4       .then((responseData) => {
 5         this.setState({
 6           dataSource: this.state.dataSource.cloneWithRows(responseData),
 7           loaded: true
 8         })
 9       })
10       .done()
11   },