ExpandableListView

Item可以展开的ListView，很详细。 详情参看http://blog.csdn.net/qq_20521573/article/details/52665196

package com.example.edianzu.expandablelistviewdemo;

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.example.edianzu.expandablelistviewdemo“ appContext.getPackageName（））;
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2016-09-26 00:13  ExpandableListViewDemo\
     文件         127  2016-09-24 17:07  ExpandableListViewDemo\.gitignore
     目录           0  2016-09-24 17:07  ExpandableListViewDemo\.gradle\
     目录           0  2016-09-24 21:36  ExpandableListViewDemo\.gradle\2.14.1\
     目录           0  2016-09-24 17:07  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\
     文件          31  2016-09-24 17:07  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\cache.properties
     文件          17  2016-09-25 23:39  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\cache.properties.lock
     文件      143348  2016-09-25 23:39  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\fileHashes.bin
     文件     5978298  2016-09-25 23:39  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\fileSnapshots.bin
     文件       27950  2016-09-25 23:39  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\fileSnapshotsToTreeSnapshotsIndex.bin
     文件      128303  2016-09-25 23:39  ExpandableListViewDemo\.gradle\2.14.1\taskArtifacts\taskArtifacts.bin
     目录           0  2016-09-24 21:36  ExpandableListViewDemo\.gradle\2.14.1\tasks\
     目录           0  2016-09-24 21:36  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\
     目录           0  2016-09-24 21:36  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\localClassSetAnalysis\
     文件       76155  2016-09-25 23:34  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\localClassSetAnalysis\localClassSetAnalysis.bin
     文件          17  2016-09-25 23:34  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\localClassSetAnalysis\localClassSetAnalysis.lock
     目录           0  2016-09-24 21:36  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\localJarClasspathSnapshot\
     文件       21027  2016-09-25 23:34  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\localJarClasspathSnapshot\localJarClasspathSnapshot.bin
     文件          17  2016-09-25 23:34  ExpandableListViewDemo\.gradle\2.14.1\tasks\_app_compileDebugJavaWithJavac\localJarClasspathSnapshot\localJarClasspathSnapshot.lock
     目录           0  2016-09-26 00:13  ExpandableListViewDemo\.idea\
     文件         686  2016-09-24 17:07  ExpandableListViewDemo\.idea\compiler.xml
     目录           0  2016-09-24 17:07  ExpandableListViewDemo\.idea\copyright\
     文件          76  2016-09-24 17:07  ExpandableListViewDemo\.idea\copyright\profiles_settings.xml
     文件         159  2016-09-24 17:07  ExpandableListViewDemo\.idea\encodings.xml
     文件         722  2016-09-24 17:07  ExpandableListViewDemo\.idea\gradle.xml
     目录           0  2016-09-25 10:30  ExpandableListViewDemo\.idea\libraries\
     文件         668  2016-09-24 17:08  ExpandableListViewDemo\.idea\libraries\animated_vector_drawable_24_2_1.xml
     文件         784  2016-09-25 09:57  ExpandableListViewDemo\.idea\libraries\appcompat_v7_24_2_1.xml
     文件         650  2016-09-24 17:08  ExpandableListViewDemo\.idea\libraries\espresso_core_2_2_2.xml
     文件         705  2016-09-24 17:08  ExpandableListViewDemo\.idea\libraries\espresso_idling_resource_2_2_2.xml
     文件         723  2016-09-24 17:08  ExpandableListViewDemo\.idea\libraries\exposed_instrumentation_api_publish_0_5.xml
............此处省略99个文件信息