Develop Reference

Why does not Application install

I have written a method that check new version of my APP and when it exists, the application download and it should install that. But it can not install the downloaded application and it gives me this error:
There was a problem parsing the package.
But when I uninstall my app and install it again with the downloaded apk file. Everything works fine so my app downloads the file correctly.
But why this could not install it programmatically?
This is my Download code:
public long downloadFromUrl(String url, String fileName, String format) {
String fullFileName = fileName + format;
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url))
.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE)// Visibility of the download Notification
.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fullFileName)// Uri of the destination file
.setTitle(fullFileName)// Title of the Download Notification
.setDescription("Downloading...");// Description of the Download Notification
DownloadManager downloadManager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
long id = downloadManager.enqueue(request);
if (format.equals(APK_FORMAT)) {
File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), fullFileName);
if(file.exists()){
DownloadReceiver downloadReceiver = new DownloadReceiver(file);
Intent intent = new Intent();
downloadReceiver.onReceive(context,intent);
context.registerReceiver(downloadReceiver,new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
}
}
return id;
}
This is a receiver that when download is completed, runs:
#Override
public void onReceive(Context context, Intent intent) {
long receivedId = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1);
if (file != null) {
Uri uri = FileProvider.getUriForFile(context,context.getApplicationContext().getPackageName()+ ".provider",file);
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}

Uri uri;
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
uri = FileProvider.getUriForFile(activity, BuildConfig.APPLICATION_ID + ".provider", destination);
} else {
uri = Uri.fromFile(destination);
}
//Log.d("path",uri.getPath());
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
activity.startActivity(intent);
make sure you have added this permission to your manifest file
Also make sure both version of your APKs are signed and with same key.
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
I made it work with this code (destination is file object).

How to programatically remove notification in download manager android

I have implemented DownloadManager in an activity. Download works fine. But this class will automatically create a notification which stays in status bar. Is there a way to remove this notification. Below is the code:
Uri uri = Uri.parse(url);
DownloadManager.Request request = new DownloadManager.Request(uri);
request.setTitle(fileName);
request.setDescription(fileName);
request.setVisibleInDownloadsUi(false);
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION);
firmwareZipPath = new File(Environment.getExternalStorageDirectory()
+ File.separator
+ Constants.TEST,
type + ".tgz");
request.setDestinationUri(Uri.fromFile(firmwareZipPath));
downloadId = downloadManager.enqueue(request);
I tried giving false to request.setVisibleInDownloadsUi. Still the notification is shown.

From official doc:
If set to VISIBILITY_HIDDEN, this requires the permission
android.permission.DOWNLOAD_WITHOUT_NOTIFICATION.
So you need to add permission to AndroidManifest.xml:
<uses-permission
android:name="android.permission.DOWNLOAD_WITHOUT_NOTIFICATION" />
For more information check official doc

Two Android apps in one file

I want to "pack" two applications in one Android APK file. Requirements:
When I install an APK fil it installs to separate apps.
If I uninstall an app, the other app would still remain installed.
Can I do it like that?

First upload those apps which you want to be installed at Dropbox (only).
Now obtain links of those APK files and in the link replace dropbox.com/..... with d.dropboxusercontent.com/...
Now, make an app and place the below code at "onCreate" or somewhere,
String destination = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/";
String fileName = "AppName.apk";
destination += FileName;
final Uri uri = Uri.parse("file://" + destination);
String URL = "d.dropboxusercontent.com/...............";
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(URL));
request.setDescription(Main.this.getString(R.string.notification_description));
request.setTitle(Main.this.getString(R.string.app_name));
// Set destination
request.setDestinationUri(uri);
// Get download service and enqueue file
final DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
final long downloadId = manager.enqueue(request);
// Set BroadcastReceiver to install app when .apk is downloaded
BroadcastReceiver onComplete = new BroadcastReceiver() {
public void onReceive(Context ctxt, Intent intent) {
Intent install = new Intent(Intent.ACTION_VIEW);
install.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
install.setDataAndType(uri,
manager.getMimeTypeForDownloadedFile(downloadId));
startActivity(install);
unregisterReceiver(this);
finish();
}
};
// Register receiver for when .apk download is complete
registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
If you want to install multiple apps, then you can apply this code multiple times by changing variable names.
Please comment if it worked.

DownloadManager, never ending notification

****** Now a have completed the code, but the notification display is running again after cancel !
I'm using the DownloadManager for downloading a file by url, it works fine.
Code creating Manager:
String[] url = {urlsProz,urlsMb};
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url[i]));
downloadFile=url[i];
request.setDescription("Some description");
request.setTitle("Some titles");
// in order for this if to run, you must use the android 3.2 to compile your app
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE);
}
String s= Environment.DIRECTORY_DOWNLOADS;
Log.i("*** testDownloadManager***",s+"/"+url[i]);
request.setDestinationInExternalPublicDir(s, "name-of-the-file"+(++j)+".ext");
// get download service and enqueue file
manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
//Download progress will be showing in the notification bar
downloadId=manager.enqueue(request);
Log.i("*** testDownloadManager***","downloadId:"+downloadId);
My code after pressing the cancel-Button:
if (manager != null) {
//remove() method will return the number of downloads removed
//Any downloaded files (complete or partial) will be deleted
int i = manager.remove(downloadId);
Log.i(TAG, downloadId + "," + i + " cancelled");
NotificationManager notifManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
//notifManager.cancelAll(); //doesn'nt work
manager = null;
}
The manager is cancelled but the notification display is still running even after the app.
Any ideas how to cancel this notification ?
Regards Wicki

cancelAll() method only cancel notification created by your application.
I think you use DownloadManager as this:
// start download
Request request = new Request(Uri.parse(urltoDownload));
request.setNotificationVisibility(Request.VISIBILITY_VISIBLE);
request.setTitle("my title");
long enqueue = downloadManager.enqueue(request);
So it's DownloadManager app (service) which create notification, and it's only DownloadManager app could cancel it.
You can't cancel other apps notifications, thats not possible.

DownloadManager dm = (DownloadManager) c
.getSystemService(Context.DOWNLOAD_SERVICE);
DownloadManager.Request dlrequest = new DownloadManager.Request(
Uri.parse(url));
dlrequest
.setAllowedNetworkTypes(
DownloadManager.Request.NETWORK_WIFI
| DownloadManager.Request.NETWORK_MOBILE)
.setTitle("Downloading")
.setDescription("Downloading in Progress..")
.setDestinationInExternalPublicDir("folder_name", name + ".jpg")
**.setNotificationVisibility(visibility)**
.allowScanningByMediaScanner();
dm.enqueue(dlrequest);
.setNotificationVisibility(visibility) -->set visibility true or false. and its done..!

Android detect when DownloadManager has finished downloading

Hi i'm downloading a file and i'm wanting to fire an ACTION_VIEW Intent once its finished downloading. so does anyone know how to detect when DownloadManager has finished.
heres how i'm running DownloadManager
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
request.setTitle(filename);
// in order for this if to run, you must use the android 3.2 to compile your app
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
}
ContextWrapper c = new ContextWrapper(getBaseContext());
String filePath = c.getFilesDir().getPath();
request.setDestinationInExternalFilesDir(getBaseContext(), filePath, filename);
// get download service and enqueue file
DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
manager.enqueue(request);
Toast.makeText(getBaseContext(), "Downloading...", Toast.LENGTH_LONG).show();
BroadcastReceiver onComplete = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String path = getFilesDir().getPath() +"/" + filename;
File f = new File(path);
Intent myIntent = new Intent(Intent.ACTION_VIEW);
myIntent.setData(Uri.fromFile(f));
startActivity(myIntent);
}
};
registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

It looks OK for me. That example is not working? But different thing is how you fire next Intent in onReceive method. Please try use your action in
myIntent = new Intent(YourActionClass.class);

Figured it out myself i needed to set the mimeType so it knows which apps to look for