下载与应用程序的下载管理器和退出后安装APK [英] Install apk after download with download manager and exit from app
本文介绍了下载与应用程序的下载管理器和退出后安装APK的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我已经创建了一个Android应用程序，并从服务器上是否有新版本发布了它会自动启动，通过使用内置的下载管理器下载。自动安装完成后，下载我创建了一个广播接收器，通知下载已完成，完成，然后我开始安装。期间，我留在应用程序，不要关闭它，它工作正常。但我的问题是，当我关闭应用程序。所以下载完成后，我想自动安装它。但我不会发生。我应该为这个问题呢？
私人无效下载（字符串link）{
DownloadManager.Request要求=新DownloadManager.Request（Uri.parse（链接））;
request.setDescription（新版本）;
request.setTitle（应用程序名称）;
request.setMimeType（应用程序/ vnd.android.package归档）;
request.setDestinationInExternalFilesDir（getApplicationContext（），Environment.DIRECTORY_DOWNLOADSmyapk.apk）;
request.setAllowedNetworkTypes（DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE）;
request.setNotificationVisibility（DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED）; downloadID = dm.enqueue（请求）;
BR =新的广播接收器（）{ @覆盖
公共无效的onReceive（上下文C，意图我）{
字符串行动= i.getAction（）; 如果（DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals（动作））{ DownloadManager.Query查询=新DownloadManager.Query（）;
query.setFilterById（downloadID）; 光标downloadResult = dm.query（查询）; 如果（downloadResult.moveToFirst（））{
INT statusColumnIndex = downloadResult.getColumnIndex（DownloadManager.COLUMN_STATUS）;
INT状态= downloadResult.getInt（statusColumnIndex）; 如果（状态== DownloadManager.STATUS_SUCCESSFUL）{
//下载成功完成
INT localFileNameId = downloadResult.getColumnIndex（DownloadManager.COLUMN_LOCAL_FILENAME）; 字符串downloadPathFile = downloadResult.getString（localFileNameId）;
串downloadPathDir = downloadPathFile.substring（0，downloadPathFile.lastIndexOf（/）+ 1）;
串downloadName = downloadPathFile.substring（downloadPathFile.lastIndexOf（/）+ 1）; Log.i（NAME =downloadName）; 档案文件=新的文件（downloadPathDir）;
文件[] =文件file.listFiles（）;
对于（F文件：文件）{
如果（f.isFile（）及＆放大器; f.exists（）及＆放大器;！f.getName（）等于（downloadName））{
f.delete（）;
}
} 意向意图=新意图（Intent.ACTION_VIEW）;
intent.setDataAndType（Uri.fromFile（新文件（downloadPathFile）），应用程序/ vnd.android.package归档）;
intent.setFlags（Intent.FLAG_ACTIVITY_NEW_TASK）;
startActivity（意向）;
unregisterReceiver（BR）;
}
}
}
}
}; registerReceiver（BR，新的IntentFilter（DownloadManager.ACTION_DOWNLOAD_COMPLETE））;}
解决方案
您可以做这样的事情：
在您的清单中。
＆lt;接收机器人：名字=packageName.DownloadReceiver机器人：出口=真正的＆GT;
＆所述;意图滤光器＆gt;
＆lt;作用机器人：名字=android.intent.action.DOWNLOAD_COMPLETE/＆GT;
＆所述; /意图滤光器＆gt;
＆LT; /接收器＆GT;
，然后在 DownloadReceiver.java 添加到处理自动安装例如逻辑
公共类DownloadReceiver扩展广播接收器{ @覆盖
公共无效的onReceive（上下文的背景下，意图意图）{
字符串行动= intent.getAction（）;
如果（DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals（动作））{
//添加你的逻辑在这里
}
}
}
i have created an android app and from server if any new version had released it will automatically start downloading by using inbuilt 'download manager' . for auto install after finish the download i have created a broadcast receiver to inform that download has finished and completed and then i start to install it. it works fine during i stay in app and don't close it. but my problem is when i close the application . so after finishing the download i want to automatically install it. but i wont happen. what should i do for this issue?
private void download(String link) {
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(link));
request.setDescription("new version");
request.setTitle("app name");
request.setMimeType("application/vnd.android.package-archive");
request.setDestinationInExternalFilesDir(getApplicationContext(), Environment.DIRECTORY_DOWNLOADS, "myapk.apk");
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
downloadID = dm.enqueue(request);
br = new BroadcastReceiver() {
@Override
public void onReceive(Context c, Intent i) {
String action = i.getAction();
if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
DownloadManager.Query query = new DownloadManager.Query();
query.setFilterById(downloadID);
Cursor downloadResult = dm.query(query);
if (downloadResult.moveToFirst()) {
int statusColumnIndex = downloadResult.getColumnIndex(DownloadManager.COLUMN_STATUS);
int status = downloadResult.getInt(statusColumnIndex);
if (status == DownloadManager.STATUS_SUCCESSFUL) {
//download completed successfully
int localFileNameId = downloadResult.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME);
String downloadPathFile = downloadResult.getString(localFileNameId);
String downloadPathDir = downloadPathFile.substring(0, downloadPathFile.lastIndexOf("/") + 1);
String downloadName = downloadPathFile.substring(downloadPathFile.lastIndexOf("/") + 1);
Log.i("name =", downloadName);
File file = new File(downloadPathDir);
File[] files = file.listFiles();
for (File f : files) {
if (f.isFile() && f.exists() && !f.getName().equals(downloadName)) {
f.delete();
}
}
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(downloadPathFile)), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
unregisterReceiver(br);
}
}
}
}
};
registerReceiver(br, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
}
解决方案
You could do something like this:
in your manifest
<receiver android:name="packageName.DownloadReceiver" android:exported="true">
<intent-filter>
<action android:name="android.intent.action.DOWNLOAD_COMPLETE"/>
</intent-filter>
</receiver>
and then in DownloadReceiver.java add the logic to handle auto install for example
public class DownloadReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
// add your logic here
}
}
}
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