Android : 디바이스에 설치된 어플리케이션(액티비티) 목록 얻기

멋진 소스

PackageManager manager = getPackageManager();
List<PackageInfo> appInfoList = manager.getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES);
for (int j = 0, jend = appInfoList.size(); j < jend ; j++) {
   PackageInfo pi = appInfoList.get(j);
}

출처 : http://blog.naver.com/PostView.nhn?blogId=dong277&logNo=130104023606&beginTime=0&jumpingVid=&from=search&redirect=Log&widgetTypeCall=true&topReferer=http%3A%2F%2Fsearch.naver.com%2Fsearch.naver%3Fwhere%3Dnexearch%26sm%3Dies_hty%26ie%3Dutf8%26query%3DgetPackageManager%28%29