Android 购物车的最佳实现2019.05.08

Android 购物车的最佳实现（通过ExpandableListView实现分店铺） 博客地址：https://blog.csdn.net/qq941263013/article/details/80901277

package com.wangyang.shoppingcarbestimplementation;

import android.content.Context;
import android.support.test.InstrumentationRegistry;
import android.support.test.runner.AndroidJUnit4;

import org.junit.Test;
import org.junit.runner.RunWith;

import static org.junit.Assert.*;

/**
 * Instrumentation test which will execute on an Android device.
 *
 * @see Testing documentation
 */
@RunWith（AndroidJUnit4.class）
public class ExampleInstrumentedTest {
    @Test
    public void useAppContext（） throws Exception {
        // Context of the app under test.
        Context appContext = InstrumentationRegistry.getTargetContext（）;

        assertEquals（“com.wangyang.shoppingcarbestimplementation“ appContext.getPackageName（））;
    }
}

 属性            大小     日期    时间   名称
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     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\
     文件         118  2019-05-08 06:38  ShoppingCarBestImplementation-master\.gitignore
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\codestyles\
     文件        1775  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\codestyles\Project.xml
     文件         626  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\gradle.xml
     文件        2101  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\misc.xml
     文件         395  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\modules.xml
     文件         564  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\runConfigurations.xml
     文件         167  2019-05-08 06:38  ShoppingCarBestImplementation-master\.idea\vcs.xml
     文件        1665  2019-05-08 06:38  ShoppingCarBestImplementation-master\README.md
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\
     文件           7  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\.gitignore
     文件        1036  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\build.gradle
     文件       45088  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\gif.gif
     文件         674  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\proguard-rules.pro
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\androidTest\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\androidTest\java\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\androidTest\java\com\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\androidTest\java\com\wangyang\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\androidTest\java\com\wangyang\shoppingcarbestimplementation\
     文件         788  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\androidTest\java\com\wangyang\shoppingcarbestimplementation\ExampleInstrumentedTest.java
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\
     文件         779  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\AndroidManifest.xml
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\assets\
     文件        2319  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\assets\ShoppingCarData.json
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\java\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\java\com\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\java\com\wangyang\
     目录           0  2019-05-08 06:38  ShoppingCarBestImplementation-master\app\src\main\java\com\wangyang\shoppingcarbestimplementation\
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