安卓：获取软件推送更新

第一步添加如下代码

        <service
            android:name=".AppUpdate.DownloadService"
            android:exported="false">
            <intent-filter>
                <action android:name="com.example.android.threadsample.BROADCAST" />
            </intent-filter>
        </service>

        <provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="cc.booku.owlbox.FileProvider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths" />
        </provider>

第二步。新建文件夹AppUpdate，并在下面新建如下文件AppUpdate文件我没用到，就不贴代码了

代码：

package cc.booku.owlbox.AppUpdate;

/**
 * Created by yangwenlong on 2019/10/7.
 */

public class app_version_class {

    private String title,content,time,down_url,version;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getTime() {
        return time;
    }

    public void setTime(String time) {
        this.time = time;
    }

    public String getDown_url() {
        return down_url;
    }

    public void setDown_url(String down_url) {
        this.down_url = down_url;
    }

    public String getVersion() {
        return version;
    }

    public void setVersion(String version) {
        this.version = version;
    }
}

package cc.booku.owlbox.AppUpdate;

import android.app.DownloadManager;
import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.support.annotation.Nullable;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;

import java.io.File;

public class DownloadService extends IntentService {
    private static final String TAG = "DownloadService";
    public static final String BROADCAST_ACTION = "com.example.android.threadsample.BROADCAST";
    public static final String EXTENDED_DATA_STATUS = "com.example.android.threadsample.STATUS";
    private LocalBroadcastManager mLocalBroadcastManager;

    public DownloadService() {
        super("DownloadService");
    }

    @Override
    protected void onHandleIntent(@Nullable Intent intent) {
        //获取下载地址
        String url = intent.getDataString();
        Log.i(TAG, url);
        //获取DownloadManager对象
        DownloadManager downloadManager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
        DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
        //指定APK缓存路径和应用名称,比如我这个路径就是/storage/emulated/0/Download/vooloc.apk
        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "app-release.apk");
        //设置网络下载环境为wifi或者移动数据
        request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
        //设置显示通知栏，下载完成后通知栏自动消失
        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE);
        //设置通知栏标题
        request.setTitle("猫头鹰下载更新");
        //设置这个下载的描述，显示在通知中
        request.setDescription("未弹出安装界面，请到系统下载，手动安装");
        //设置类型为.apk
        request.setMimeType("application/vnd.android.package-archive");
        //获得唯一下载id
        long requestId = downloadManager.enqueue(request);
        //将id放进Intent
        Intent localIntent = new Intent(BROADCAST_ACTION);
        localIntent.putExtra(EXTENDED_DATA_STATUS, requestId);
        //查询下载信息
        DownloadManager.Query query = new DownloadManager.Query();
        //只包括带有给定id的下载。
        query.setFilterById(requestId);
        try {
            boolean isGoging = true;
            while (isGoging) {
                Cursor cursor = downloadManager.query(query);
                if (cursor != null && cursor.moveToFirst()) {
                    int status = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS));
                    switch (status) {
                        //如果下载状态为成功
                        case DownloadManager.STATUS_SUCCESSFUL:
                            isGoging = false;
                            //调用LocalBroadcastManager.sendBroadcast将intent传递回去
                            mLocalBroadcastManager = LocalBroadcastManager.getInstance(this);
                            mLocalBroadcastManager.sendBroadcast(localIntent);
//                            String fileName = "app-release.apk";
//                            Intent i = new Intent();
//                            i.setAction(Intent.ACTION_VIEW);
//                            i.setDataAndType(Uri.fromFile(new File(fileName) ), "application/vnd.android.package-archive");
//                            startActivity(i);

                            break;
                    }
                }
                if (cursor != null) {
                    cursor.close();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }



}

然后是activity里面的代码：

/********************************程序更新******************************
    //动态申请权限

    //动态申请权限
    private void requestPermission() {
        if (ContextCompat.checkSelfPermission(ExplainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(ExplainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
        }
    }

    //注册广播
    private void regist() {
        IntentFilter intentFilter = new IntentFilter(DownloadService.BROADCAST_ACTION);
        intentFilter.addCategory(Intent.CATEGORY_DEFAULT);
        LocalBroadcastManager.getInstance(this).registerReceiver(receiver, intentFilter);
    }



    public class MyReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), "app-release.apk");
            //获取权限
            try {
                Runtime.getRuntime().exec("chmod 777" + file.getCanonicalPath());
            } catch (IOException e) {
                e.printStackTrace();
            }
            // 由于没有在Activity环境下启动Activity,设置下面的标签
            intent = new Intent(Intent.ACTION_VIEW);
            //如果设置，这个活动将成为这个历史堆栈上的新任务的开始
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            //判读版本是否在7.0以上
            if (Build.VERSION.SDK_INT >= 24) {
                //7.0以上的版本
                Uri apkUri = FileProvider.getUriForFile(context, "cc.booku.owlbox.FileProvider", file);
                //添加这一句表示对目标应用临时授权该Uri所代表的文件
                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
            } else {
                //7.0以下的版本
                intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
            }
            startActivity(intent);
        }
    }



    private void AppVersion(String url) {


        OkHttpClient client = new OkHttpClient();
        Request request = new Request
                .Builder()
                .url(url)//要访问的链接
                .build();

        Call call = client.newCall(request);
        call.enqueue(new okhttp3.Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, okhttp3.Response response) throws IOException {
                String res = response.body().string();
                //Log.i("response===========>",res);

                try {
                    initUpdate(res);
                }catch (Exception e) {

                    Log.i("response===========>",res);
//异常处理
                }

            }
        });

    }



    private void initUpdate(String json) {


        //http://www.shuchuwenku.vip/MavBox/statistics/version.php
        List<app_version_class> list = JSON.parseArray(json, app_version_class.class);

        for (int i = 0; i < list.size(); i++) {
            String version = list.get(i).getVersion();
            String title = list.get(i).getTitle();
            String time = list.get(i).getTime();
            String content = list.get(i).getContent();
            String down_url = list.get(i).getDown_url();
            Log.i("response===========>", version + title + time + content + down_url);
            if(pm(list.get(i).getVersion())){

                Tupdate(down_url,title,version,content);

            }


        }



    }

    private void Tupdate(final String down_url,final String title,final String filename,final String content){


        if(fileIsExists("/storage/emulated/0/Download/app-release.apk")){
            deleteSingleFile("/storage/emulated/0/Download/app-release.apk");
        }




        new TDialog.Builder(getSupportFragmentManager())
                .setLayoutRes(R.layout.tdialog_version_upgrde)
                .setScreenWidthAspect(this, 0.9f)
                .addOnClickListener(R.id.tv_cancel, R.id.tv_confirm)

                .setOnBindViewListener(new OnBindViewListener() {
                    public void bindView(BindViewHolder viewHolder) {
                        viewHolder.setText(R.id.tv_upgrade_content, content);
                    }
                })
                .setOnViewClickListener(new OnViewClickListener() {


                    @Override
                    public void onViewClick(BindViewHolder viewHolder, View view, TDialog tDialog) {
                        switch (view.getId()) {
                            case R.id.tv_cancel:
                                tDialog.dismiss();
                                break;
                            case R.id.tv_confirm:

                                Toast.makeText(ExplainActivity.this, "如果没有弹出安装界面,请手动安装", Toast.LENGTH_SHORT).show();
                                Intent serviceIntent = new Intent(ExplainActivity.this, DownloadService.class);
                                serviceIntent.setData(Uri.parse(down_url));
                                startService(serviceIntent);


                                tDialog.dismiss();
                                break;
                        }
                    }
                })
                .create()
                .show();

    }



    private boolean deleteSingleFile(String filePath$Name) {
        File file = new File(filePath$Name);
        // 如果文件路径所对应的文件存在，并且是一个文件，则直接删除
        if (file.exists() && file.isFile()) {
            if (file.delete()) {
                Log.e("--Method--", "Copy_Delete.deleteSingleFile: 删除单个文件" + filePath$Name + "成功！");
                return true;
            } else {
                Toast.makeText(getApplicationContext(), "删除单个文件" + filePath$Name + "失败！", Toast.LENGTH_SHORT).show();
                return false;
            }
        } else {
            Toast.makeText(getApplicationContext(), "删除单个文件失败：" + filePath$Name + "不存在！", Toast.LENGTH_SHORT).show();
            return false;
        }
    }

    private boolean pm(String versioncode) {

        //获取包管理者对象
        PackageManager pm = getPackageManager();

        PackageInfo info = null;
        try {
            info = pm.getPackageInfo(getPackageName(), 0);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        //获取版本号和版本名称


        if (versioncode.equals(info.versionName)) {
            return false;
        } else return true;


    }



    @Override
    protected void onDestroy() {
        super.onDestroy();
        LocalBroadcastManager.getInstance(this).unregisterReceiver(receiver);
    }


//    /**
//     * @param file
//     * @return
//     * @Description 安装apk
//     */
//    protected void installApk(File file) {
//        Intent intent = new Intent(Intent.ACTION_VIEW);
//        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { // 7.0+以上版本
//            Uri apkUri = FileProvider.getUriForFile(this, "com.shawpoo.app.fileprovider", file);  //包名.fileprovider
//            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
//            intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
//        } else {
//            intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
//        }
//        this.startActivity(intent);
//    }

点击事件

//动态申请权限
                        requestPermission();
                        //注册广播
                        regist();
                        //得到程序最新版本地址


                        //读取配置文件信息
                        try {
                            

                            AppVersion("更新地址");

                            }catch (Exception e) {

                            Toast.makeText(ExplainActivity.this, "更新地址解析错误", Toast.LENGTH_SHORT).show();
//异常处理
                        }

服务器php

<?php
header("content-Type: text/html; charset=utf-8");//字符编码设置
$servername = "localhost";
$username = "maotouyi";
$password = "ywl123456..";
$dbname = "version_update";
 
// 创建连接
$conn =new mysqli($servername, $username, $password, $dbname);
// 检测连接
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
 
$sql = "
SELECT * FROM `app_verison`
";
$result = $conn->query($sql);
 //SELECT * FROM `mac_vod`
$arr = array();
// 输出每行数据
while($row = $result-> fetch_assoc()) {
    $count=count($row);//不能在循环语句中，由于每次删除row数组长度都减小
    for($i=0;$i<$count;$i++){
        unset($row[$i]);//删除冗余数据
    }
    array_push($arr,$row);
 
}
//print_r($arr);
echo json_encode($arr,JSON_UNESCAPED_UNICODE);//json编码
$conn->close();
 
?>

新建一个数据库