Here's a class that i use in one of my apps to detect if a package is
installed when my service starts up. You should be able to modify this to
suit your needs.
public class AppDetector {
protected boolean isAppInstalledFromService(Service parent, String uri) {
PackageManager pm = parent.getPackageManager();
boolean installed = false;
try {
pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
installed = true;
} catch (PackageManager.NameNotFoundException e) {
installed = false;
}
return installed;
}
}
To call it:
AppDetector detect = new AppDetector();
Boolean isInstalled = detect.isAppInstalledFromService(this, "
com.your.package.name");
//Nick
On Thu, Jul 22, 2010 at 8:39 AM, Justin Anderson <[email protected]>wrote:
> Use the PackageManager class:
>
> http://developer.android.com/reference/android/content/pm/PackageManager.html
>
> ----------------------------------------------------------------------
> There are only 10 types of people in the world...
> Those who know binary and those who don't.
> ----------------------------------------------------------------------
>
>
>
> On Thu, Jul 22, 2010 at 9:33 AM, Jake Colman <[email protected]> wrote:
>
>>
>> When my user clicks on my AppWidget, I want to launch either my own
>> provided activity or an activity from a different app if that app is
>> installed. My own activity is a stripped down version of the
>> information that can be displayed by that other application. If that
>> other application is available, I'd prefer to launch it in instead of my
>> own. I may include this as a preference option and allow the user to
>> decide which activity to launch.
>>
>> How can I check whether a specific app is installed before attempting to
>> launch it (or before including it in my preferences) and only launch my
>> own activity if that app is not available?
>>
>> Thanks.
>>
>> ...Jake
>>
>> --
>> Jake Colman -- Android Tinkerer
>>
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>
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--
//Nick Richardson
//[email protected]
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