DownDemo.zip

该demo是模仿了从服务器下载并更新软件，该例子用到了文件下载，android6.0以上版本动态申请权限，android10.0的文件适配

package com.ljp.downdemo;

import android.content.Context;

import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.ext.junit.runners.AndroidJUnit4;

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

import static org.junit.Assert.*;

/**
 * Instrumented test which will execute on an Android device.
 *
 * @see Testing documentation
 */
@RunWith（AndroidJUnit4.class）
public class ExampleInstrumentedTest {
    @Test
    public void useAppContext（） {
        // Context of the app under test.
        Context appContext = InstrumentationRegistry.getInstrumentation（）.getTargetContext（）;
        assertEquals（“com.ljp.downdemo“ appContext.getPackageName（））;
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2020-06-24 14:47  DownDemo\
     文件         222  2020-06-24 11:53  DownDemo\.gitignore
     目录           0  2020-06-24 11:53  DownDemo\.gradle\
     目录           0  2020-06-24 12:56  DownDemo\.gradle\6.1.1\
     目录           0  2020-06-24 12:56  DownDemo\.gradle\6.1.1\executionHistory\
     文件      889664  2020-06-24 14:31  DownDemo\.gradle\6.1.1\executionHistory\executionHistory.bin
     文件          17  2020-06-24 14:31  DownDemo\.gradle\6.1.1\executionHistory\executionHistory.lock
     目录           0  2020-06-24 11:53  DownDemo\.gradle\6.1.1\fileChanges\
     文件           1  2020-06-24 14:31  DownDemo\.gradle\6.1.1\fileChanges\last-build.bin
     目录           0  2020-06-24 12:56  DownDemo\.gradle\6.1.1\fileContent\
     文件          17  2020-06-24 14:31  DownDemo\.gradle\6.1.1\fileContent\fileContent.lock
     目录           0  2020-06-24 12:56  DownDemo\.gradle\6.1.1\fileHashes\
     文件       68915  2020-06-24 14:31  DownDemo\.gradle\6.1.1\fileHashes\fileHashes.bin
     文件          17  2020-06-24 14:31  DownDemo\.gradle\6.1.1\fileHashes\fileHashes.lock
     文件       18837  2020-06-24 14:11  DownDemo\.gradle\6.1.1\fileHashes\resourceHashesCache.bin
     文件           0  2020-06-24 11:53  DownDemo\.gradle\6.1.1\gc.properties
     目录           0  2020-06-24 12:56  DownDemo\.gradle\6.1.1\javaCompile\
     文件       80648  2020-06-24 14:31  DownDemo\.gradle\6.1.1\javaCompile\classAnalysis.bin
     文件       93293  2020-06-24 14:11  DownDemo\.gradle\6.1.1\javaCompile\jarAnalysis.bin
     文件          17  2020-06-24 14:31  DownDemo\.gradle\6.1.1\javaCompile\javaCompile.lock
     文件       28116  2020-06-24 14:31  DownDemo\.gradle\6.1.1\javaCompile\taskHistory.bin
     目录           0  2020-06-24 11:53  DownDemo\.gradle\6.1.1\vcsmetadata-1\
     目录           0  2020-06-24 12:56  DownDemo\.gradle\buildOutputCleanup\
     文件          17  2020-06-24 14:31  DownDemo\.gradle\buildOutputCleanup\buildOutputCleanup.lock
     文件          53  2020-06-24 11:53  DownDemo\.gradle\buildOutputCleanup\cache.properties
     文件       20927  2020-06-24 14:31  DownDemo\.gradle\buildOutputCleanup\outputFiles.bin
     目录           0  2020-06-24 11:53  DownDemo\.gradle\checksums\
     文件          17  2020-06-24 14:31  DownDemo\.gradle\checksums\checksums.lock
     目录           0  2020-06-24 11:53  DownDemo\.gradle\vcs-1\
     文件           0  2020-06-24 11:53  DownDemo\.gradle\vcs-1\gc.properties
     目录           0  2020-06-24 14:46  DownDemo\.idea\
............此处省略138个文件信息