逛详情设置背景色为白色，网络请求增加使用Native请求的方式

+'use strict';
+
+import ReactNative, {Platform, Dimensions} from 'react-native';
+import CONFIG from '../config/config';
+import DeviceInfo from 'react-native-device-info';
+import queryString from 'query-string';
+import md5 from 'md5';
+import timeoutPromise from '../utils/timeoutPromise';
+import trimObject from '../utils/trimObject';
+import RNNativeConfig from './RNNativeConfig';
+
+export default class NativeRequest {
+
+	constructor(baseURL, timeout) {
+		if (baseURL) {
+			this.baseUrl = baseURL;
+		}
+
+		if (timeout) {
+			this.timeout = timeout;
+		}
+	}
+
+
+
+	/**
+	 * GET
+	 *
+	 * @param  {[object]} opts
+	 *
+	 *   {
+	 *      url: '/operations/api/v6/category/getCategory', //接口地址
+	 *      timeout: 30,	//毫秒
+	 *   }
+	 *
+	 * @return {[promise]}
+	 */
+	async get(opts) {
+		try {
+			let host = this.baseUrl;
+			let url = opts && opts.url ? opts.url : '';
+			let body = opts && opts.body ? opts.body : {};
+			let timeout = this.timeout;
+			if (!timeout) {
+				timeout = opts && opts.timeout ? opts.timeout : 0;
+			}
+
+			let params = {
+				host,
+				timeout,
+				url,
+				body,
+			};
+			let response = await ReactNative.NativeModules.YH_CouponHelper.get(params);
+			let data = await this._parseResponse(response);
+			return data;
+
+		} catch(error) {
+			throw(error);
+		}
+	}
+
+	/**
+	 * POST
+	 *
+	 * @param  {[object]} opts
+	 *
+	 *   {
+	 *      url: '/operations/api/v6/category/getCategory', //接口地址
+	 *      body: {
+	 *      	user: 'Lily',
+	 *      	password: '111111',
+	 *      },
+	 *      timeout: 30,	//毫秒
+	 *   }
+	 *
+	 * @return {[promise]}
+	 */
+	async post(opts) {
+    	try {
+    		let host = this.baseUrl;
+			let url = opts && opts.url ? opts.url : '';
+			let body = opts && opts.body ? opts.body : {};
+			let timeout = this.timeout;
+			if (!timeout) {
+				timeout = opts && opts.timeout ? opts.timeout : 0;
+			}
+
+			let params = {
+				host,
+				timeout,
+				url,
+				body,
+			};
+			let response = await ReactNative.NativeModules.YH_CouponHelper.post(params);
+	    	let data = await this._parseResponse(response);
+			return data;
+
+		} catch(error) {
+			throw(error);
+		}
+	}
+
+	async _parseResponse(response) {
+		let code = response && response.code ? response.code : 0;
+		if (code == 200) {
+    		return response.data;
+    	} else {
+    		let message = response && response.message ? response.message : '';
+    		throw({code, message});
+    	}
+	}
+}

@@ -179,7 +179,7 @@ let styles = StyleSheet.create({
         backgroundColor: '#f0f0f0',
     },
     contentContainer:{
-
+        backgroundColor: 'white',
     },
     GoodsGroupHeader: {
         flex: 1,