android - 安卓应用程序 ID

Question

谁能说如何获取安装在设备中的市场应用程序的应用程序 ID。我想获取特定已安装应用程序的 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;
            }

        }