how to get currently selected application package name in android programmatically?

I have created custom soft keyboard with images and my task is want to send selected image to the currently selected Application by the user like google hangout but i can get Installed application package name and icon using Package Manager like that if am using google hangout application means i have to get google hangout application package name and from my custom keyboard i have to share selected images directly to the hangout chat conversation as a message how can i solve this issue.

You can get all the installed package details.

 public ArrayList<PackageInfoStruct> getInstalledApps(Activity mActivity) {
    ArrayList<PackageInfoStruct> res = new ArrayList<PackageInfoStruct>();
    List<PackageInfo> packs = mActivity.getPackageManager()
            .getInstalledPackages(0);

    for (int i = 0; i < packs.size(); i++) {
        PackageInfo p = packs.get(i);
        PackageInfoStruct newInfo = new PackageInfoStruct();
        newInfo.appname = p.applicationInfo.loadLabel(
                mActivity.getPackageManager()).toString();
        newInfo.pname = p.packageName;
        newInfo.datadir = p.applicationInfo.dataDir;
        newInfo.versionName = p.versionName;
        newInfo.versionCode = p.versionCode;
        newInfo.icon = p.applicationInfo.loadIcon(mActivity
                .getPackageManager());
        res.add(newInfo);
    }
    return res;
}

public class PackageInfoStruct {
    String appname = "";
    String pname = "";
    String versionName = "";
    int versionCode = 0;
    Drawable icon;
    String datadir = "";
}

Call getInstalledApps

ArrayList<PackageInfoStruct> installedPackageDetails = getInstalledApps(getActivity());

You can use above method to display list of installed app and on selected you can details from as per selected item. PackageInfoStruct class contains details for package