Android App自动更新解决方案(DownloadManager)
2024-09-01 23:15:55
一开始，我们先向服务器请求数据获取版本
public ObservableField<VersionBean> appVersion = new ObservableField<>();
/**
* 获取服务器版本并判断是否需要更新
*/
public void getServiceAppVersionEvent() {
resource.getAppVersionEvent()
.observeOn(AndroidSchedulers.mainThread())
.subscribe(response -> {
if (EmptyUtil.isNotEmpty(response.body)) {
appVersion.set(response.body);
if (UpdateAppUtil.checkAppVersion(response.body)) {
checkUpdate.set("发现新版本" + response.body.getVersion());
}
}
});
}
服务器返回的数据
/**
* Created by hyx on 17-9-29.
*/ public class VersionBean { private String description;
private String url;
private String version; public String getUrl() {
return url;
} public void setUrl(String url) {
this.url = url;
} public String getVersion() {
return version;
} public void setVersion(String version) {
this.version = version;
} public String getDescription() {
return description;
} public void setDescription(String description) {
this.description = description;
}
}
对比服务器和本地判断是否需要更新，我这里是根据VersionName判断
/**
* 获取versionName
*
* @return
*/
public static String getAppVersionName() {
if (EmptyUtil.isNotEmpty(CtrAppImpl.getContext())) {
try {
PackageManager manager = CtrAppImpl.getContext().getPackageManager();
PackageInfo info = manager.getPackageInfo(CtrAppImpl.getContext().getPackageName(), 0);
return info.versionName;
} catch (Exception e) {
e.printStackTrace();
return "";
} } else {
return null;
}
} /**
* 获取versionId
*
* @return
*/
public static int getAppVersionCode() {
if (EmptyUtil.isNotEmpty(CtrAppImpl.getContext())) {
try {
PackageManager manager = CtrAppImpl.getContext().getPackageManager();
PackageInfo info = manager.getPackageInfo(CtrAppImpl.getContext().getPackageName(), 0);
return info.versionCode;
} catch (Exception e) {
e.printStackTrace();
return -1;
} } else {
return -1;
}
} /**
* true 表示需要更新，false 表示当前版本是最新的
*
* @param versionBean
* @return
*/
public static boolean checkAppVersion(VersionBean versionBean) {
if (EmptyUtil.isNotEmpty(versionBean)) {
if (!getAppVersionName().equals(versionBean.getVersion())) {
return true;
} else {
return false;
}
}
return false;
}
如果需要更新，我们根据存储的downloadId去查询下载状态，因为有可能用户之前已经下载了，没有安装，亦或正在下载中，下载暂停等情况，
if (UpdateAppUtil.checkAppVersion(getViewModel().appVersion.get())) {
//根据downloadId查询下载状态
long downloadId = (long) SPUtil.get(PersonalActivity.this, "downloadId", -1L);
UpdateAppUtil.checkDownloadStatus(downloadId, new DataBack<Integer>() {
@Override
public void take(Integer status) {
if (status == -1) {
new MaterialDialog.Builder(PersonalActivity.this)
.title("版本更新")
.content("发现新版本，是否更新？")
.positiveText("确定")
.negativeText("取消")
.onPositive(((materialDialog, dialogAction) -> {
ToastUtil.showShortToast("正在后台为您下载");
UpdateAppUtil.downloadAPK(getViewModel().appVersion.get(), "ctrshoppix.apk");
}))
.onNegative((materialDialog, dialogAction) -> {
materialDialog.dismiss();
})
.show();
} else if (status == DownloadManager.STATUS_FAILED) {
ToastUtil.showShortToast("下载失败,正在为您重新下载");
UpdateAppUtil.downloadAPK(getViewModel().appVersion.get(), "ctrshoppix.apk");
} else if (status == DownloadManager.STATUS_SUCCESSFUL) {
if (UpdateAppUtil.compareApk(UpdateAppUtil.getApkInfo(UpdateAppUtil.getDownloadPath(downloadId)))) {
UpdateAppUtil.installApp(UpdateAppUtil.getDownloadUri(downloadId));
} else {
UpdateAppUtil.removeDownloadId(downloadId);
}
}
}
});
具体的方法在下面UpdateAppUtil中查看，备注写的很清楚
import android.app.Activity;
import android.app.DownloadManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.support.v4.content.FileProvider;
import android.text.BoringLayout; import java.io.File;
import java.io.IOException; import ppm.ctr.cctv.ctr.application.CtrAppImpl;
import ppm.ctr.cctv.ctr.common.AsyncCall;
import ppm.ctr.cctv.ctr.common.DataBack;
import ppm.ctr.cctv.ctr.network.entity.VersionBean;
import ppm.ctr.cctv.ctr.services.file.UriPraseUtil; /**
* Created by css on 2017/10/30.
*/ public class UpdateAppUtil {
private static DownloadManager downloadManager; /**
* 获取versionName
*
* @return
*/
public static String getAppVersionName() {
if (EmptyUtil.isNotEmpty(CtrAppImpl.getContext())) {
try {
PackageManager manager = CtrAppImpl.getContext().getPackageManager();
PackageInfo info = manager.getPackageInfo(CtrAppImpl.getContext().getPackageName(), 0);
return info.versionName;
} catch (Exception e) {
e.printStackTrace();
return "";
} } else {
return null;
}
} /**
* 获取versionId
*
* @return
*/
public static int getAppVersionCode() {
if (EmptyUtil.isNotEmpty(CtrAppImpl.getContext())) {
try {
PackageManager manager = CtrAppImpl.getContext().getPackageManager();
PackageInfo info = manager.getPackageInfo(CtrAppImpl.getContext().getPackageName(), 0);
return info.versionCode;
} catch (Exception e) {
e.printStackTrace();
return -1;
} } else {
return -1;
}
} /**
* true 表示需要更新，false 表示当前版本是最新的
*
* @param versionBean
* @return
*/
public static boolean checkAppVersion(VersionBean versionBean) {
if (EmptyUtil.isNotEmpty(versionBean)) {
if (!getAppVersionName().equals(versionBean.getVersion())) {
return true;
} else {
return false;
}
}
return false;
} /**
* 检查下载状态
*
* @param downloadId
* @param dataBack
*/
public static void checkDownloadStatus(long downloadId, DataBack<Integer> dataBack) {
DownloadManager.Query query = new DownloadManager.Query();
//通过下载的id查找
query.setFilterById(downloadId);
//获取DownloadManager
if (EmptyUtil.isEmpty(downloadManager)) {
downloadManager = (DownloadManager) CtrAppImpl.getContext().getSystemService(Context.DOWNLOAD_SERVICE);
}
Cursor c = downloadManager.query(query);
if (c.moveToFirst()) {
int status = c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS));
switch (status) {
case -1:
dataBack.take(-1);
break;
//下载暂停
case DownloadManager.STATUS_PAUSED:
ToastUtil.showShortToast("下载暂停");
break;
//下载延迟
case DownloadManager.STATUS_PENDING:
ToastUtil.showShortToast("下载延迟");
break;
//正在下载
case DownloadManager.STATUS_RUNNING:
ToastUtil.showShortToast("正在下载");
break;
//下载完成
case DownloadManager.STATUS_SUCCESSFUL:
dataBack.take(DownloadManager.STATUS_SUCCESSFUL); break;
//下载失败
case DownloadManager.STATUS_FAILED:
dataBack.take(DownloadManager.STATUS_FAILED);
break;
default:
dataBack.take(-1);
break;
} dataBack.take(status);
} else {
//可能用户误删之前已经下载得apk
dataBack.take(-1);
}
c.close();
} /**
* 根据downloadID获取本地存储的文件path
*
* @param downloadId
* @return
*/
public static String getDownloadPath(long downloadId) {
//获取DownloadManager
if (EmptyUtil.isEmpty(downloadManager)) {
downloadManager = (DownloadManager) CtrAppImpl.getContext().getSystemService(Context.DOWNLOAD_SERVICE);
}
String downloadPath = new File(UriPraseUtil.uriToFile(downloadManager.getUriForDownloadedFile(downloadId), CtrAppImpl.getContext())).toString();
return downloadPath;
} /**
* 根据downloadID 获取获取本地文件存储的uri
*
* @param downloadId
* @return
*/
public static Uri getDownloadUri(long downloadId) {
//获取DownloadManager
if (EmptyUtil.isEmpty(downloadManager)) {
downloadManager = (DownloadManager) CtrAppImpl.getContext().getSystemService(Context.DOWNLOAD_SERVICE);
}
Uri downloadFileUri = downloadManager.getUriForDownloadedFile(downloadId);
//适配不同的手机，有的手机不能识别，所以再转一遍
Uri uri = Uri.fromFile(new File(UriPraseUtil.uriToFile(downloadFileUri, CtrAppImpl.getContext())));
return uri;
} /**
* 获取apk程序信息
*
* @param path apk path
*/
public static PackageInfo getApkInfo(String path) {
PackageManager pm = CtrAppImpl.getContext().getPackageManager();
PackageInfo info = pm.getPackageArchiveInfo(path, PackageManager.GET_ACTIVITIES);
if (info != null) {
return info;
}
return null;
} /**
* 下载的apk和当前程序版本比较
*
* @param apkInfo apk file's packageInfo
* @return 如果当前应用版本小于apk的版本则返回true
*/
public static boolean compareApk(PackageInfo apkInfo) {
if (apkInfo == null) {
return false;
}
if (!apkInfo.versionName.equals(getAppVersionName())) {
return true;
}
return false; } /**
* 下载apk
*
* @param versionBean
* @param apkName
*/
public static void downloadAPK(VersionBean versionBean, String apkName) {
//创建下载任务
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(versionBean.getUrl()));
//移动网络情况下是否允许漫游
request.setAllowedOverRoaming(false);
// 设置在通知栏是否显示下载通知(下载进度), 有 3 个值可选:
// VISIBILITY_VISIBLE: 下载过程中可见, 下载完后自动消失 (默认)
// VISIBILITY_VISIBLE_NOTIFY_COMPLETED: 下载过程中和下载完成后均可见
// VISIBILITY_HIDDEN: 始终不显示通知
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setTitle("单单拍");
request.setDescription("");
request.setVisibleInDownloadsUi(true); //设置下载的路径
request.setDestinationInExternalPublicDir(Environment.getExternalStorageDirectory().getAbsolutePath(), apkName); //获取DownloadManager
if (EmptyUtil.isEmpty(downloadManager)) {
downloadManager = (DownloadManager) CtrAppImpl.getContext().getSystemService(Context.DOWNLOAD_SERVICE);
}
//将下载请求加入下载队列，加入下载队列后会给该任务返回一个long型的id，通过该id可以取消任务，重启任务、获取下载的文件等等
long downloadId = downloadManager.enqueue(request);
SPUtil.put(CtrAppImpl.getContext(), "downloadId", downloadId);
} /**
* 移除本地存储的downloadid 和相关文件
*
* @param downloadId
*/
public static void removeDownloadId(long downloadId) {
//获取DownloadManager
if (EmptyUtil.isEmpty(downloadManager)) {
downloadManager = (DownloadManager) CtrAppImpl.getContext().getSystemService(Context.DOWNLOAD_SERVICE);
}
downloadManager.remove(downloadId);
SPUtil.remove(CtrAppImpl.getContext(), "downloadId");
} /**
* 安装app
*
* @param uri
*/
public static void installApp(Uri uri) {
Intent intent = new Intent();
intent.setDataAndType(uri, "application/vnd.android.package-archive");
intent.setAction(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
CtrAppImpl.getContext().startActivity(intent);
} /**
* 安装app
*
* @param apkPath
*/
public static void installApp(String apkPath) {
File file = new File(apkPath);
Uri uri = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
String command = "chmod " + "777" + " " + file;
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec(command);
} catch (IOException e) {
e.printStackTrace();
}
uri = FileProvider.getUriForFile(CtrAppImpl.getContext(), "ppm.ctr.cctv.ctr.provider", file);
} else {
uri = Uri.fromFile(file);
}
Intent intent = new Intent();
intent.setDataAndType(uri, "application/vnd.android.package-archive");
intent.setAction(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
CtrAppImpl.getContext().startActivity(intent);
} }
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