In my widget, when the widget is opened, I want it to open up a new page that shows links to the users already installed applications. The users must be able to add and delete the links as needed and the links would be updated if that application was deleted from the users device. I have already created the ability in my widget to open a new class but I don't know on how to go about linking to user applications. How can I do this?
You have to get the Activity of the app and link it with URI.
For example:
Uri.parse("market://details?id=" + facebookpackagename);
will load the Facebook app from within your app.
Try this code:
PackageManager pm = getPackageManager();
List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);
for(ApplicationInfo packageInfo:packages){
if( pm.getLaunchIntentForPackage(packageInfo.packageName) != null ){
String currAppName = pm.getApplicationLabel(packageInfo).toString();
//This app is a non-system app
}
else{
//System App
}
}
Related
I have a link url https://www.google.com.vn/
I want when click link url I can check if my device installed chrome it will always open url with chomre else it will open url with default browser ( not show dialog to chose chrome or internet brower...)
How I can do it?
Try the following code to get the list of activities which can handle your intent and then use Intent.setComponent() to explicitly select the application that you want to launch
PackageManager packageManager = getPackageManager();
List activities = packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
i am trying to make launcher in android.i want admin to hide few apps from user.
i have done for admin-user log in. now i want admin to select some apps which should not be seen by user.
so that,when user log in he/she should see only those apps which are allowed by admin.
List<ResolveInfo> availableActivities = manager.queryIntentActivities(i, 0);
for(ResolveInfo ri:availableActivities){
AppDetail app = new AppDetail();
app.label = ri.loadLabel(manager);
app.name = ri.activityInfo.packageName;
app.icon = ri.activityInfo.loadIcon(manager);
apps.add(app);
}
i have got the list of apps..
kindly help.
Use PackageManager to get all the installed apps and then write the following code:
PackageManager p = getPackageManager();
ComponentName componentName = new ComponentName(this, package_name); //package_name is the name of the application's package you want to hide
p.setComponentEnabledSetting(componentName,PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
That should do it.
You can maintain application information i.e name,package name and icon in SQLite databse.
On the basis of selection , you can show applications to user.
I'm wondering if it's possible to check if an application is shipped with Android, for example: Gallery, Contacts, Downloads, Email, etc. all these kind applications are the ones I would like to exclude from a list I'm creating, but don't want to hardcode the names.
This is the code I'm using to grab application names:
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
final List pkgList = getApplicationContext().getPackageManager().queryIntentActivities(mainIntent, 0);
pkgList contains ResolveInfo objects.
Edit:
One way to check if application is part of Android OS is to check if ResolveInfo.activityInfo.applicationInfo.packageName contains "com.android" char seq., but I'm still interested in a more elegant solution.
See this answer.
Basically, this:
PackageManager pm = getPackageManager();
//Gets the info for all installed applications
List<ApplicationInfo> apps = pm.getInstalledApplications(0);
for(ApplicationInfo app : apps) {
if((app.flags & ApplicationInfo.FLAG_SYSTEM) == 1) {
//It's a pre-installed app
} else if ((app.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) == 1) {
//It's a pre-installed app with a market update installed
}
}
I need to know the list of installed applications that can be launched by the user (for example: Browser, Email, Maps, etc.). I read this question about the getInstalledApplications method, so I wrote the following code:
final PackageManager pm = getPackageManager();
List<ApplicationInfo> apps = pm.getInstalledApplications(PackageManager.GET_META_DATA);
for (ApplicationInfo app : apps) {
Intent launchIntent = pm.getLaunchIntentForPackage(app.packageName);
if (launchIntent != null) {
Log.d(LOG_TAG, "getApplicationLabel: " + pm.getApplicationLabel(app));
Log.d(LOG_TAG, "loadLabel: " + app.loadLabel(pm));
Log.d(LOG_TAG, "packageName: " + app.packageName);
Log.d(LOG_TAG, "name: " + app.name);
}
}
In this way I get the list of applications that can be launched. Each of these applications is characterized by a package name, so if I want to start one of these, just get the launch intent for the package by specifying the package name.
This means that each package has at most an activity that can be launched, so each of the applications (which are returned by the getInstalledApplications method) should have a unique package name. Is that correct?
Android won't typically let you install more than one application using the same package name. In my experience, the .apk file for the second app won't install, let alone run. So, no, you're not going to get more than one application per package name.
It IS possible to have multiple activities be launched via intents from the same application, though. Your code won't get them, because getLaunchIntentForPackage() only returns one intent, but each activity can have its own intent filters. The "Note Pad Example" at http://developer.android.com/guide/topics/intents/intents-filters.html has three different activities, each of which can be launched from the outside.
How could I write a code which can tell me that android market is installed on your android phone?
There are two ways. You can use the already mentioned getPackageManager() and getApplicationInfo() (if the package is not found, a PacketManager.NameNotFoundException will be thrown - see here). Android Market's package name is com.android.vending.
However, you can also create a dummy intent for searching the market and check how it is handled. If the resulting list has at least one entry, you can be sure that Android Market is installed:
Intent market = new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=dummy"));
PackageManager manager = getPackageManager();
List<ResolveInfo> list = manager.queryIntentActivities(mmarket, 0);
Here's what I did (assumes browser exists):
Intent market = new Intent(Intent.ACTION_VIEW).setData(Uri
.parse("market://details?id=com.example.app"));
Intent website = new Intent(Intent.ACTION_VIEW).setData(Uri
.parse("http://play.google.com/store/apps/details?id=com.example.app"));
try {
startActivity(market);
} catch (ActivityNotFoundException e) {
startActivity(website);
}