Android应用程序ID

Question

任何人都可以说如何在设备中安装市场应用程序的应用程序ID。我想获得特定安装的应用程序的ID？

Answer 1

    boolean installed = appInstalledOrNot(Your App Package as String);

    if(installed){
           ////////App is Installed
    }

        private boolean appInstalledOrNot(String uri) {
            PackageManager pm = getPackageManager();
            try {
                pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
                return true;
            } catch (PackageManager.NameNotFoundException e) {
                return false;
            }

        }