Android判断应用是否已安装，android判断应用,pageManage =

Android判断应用是否已安装，android判断应用,pageManage =

pageManage = getPackageManager();        List<PackageInfo> packages = pageManage.getInstalledPackages(0);                for(int i=0;i<packages.size();i++) {                        PackageInfo packageInfo = packages.get(i);                        String appName = packageInfo.applicationInfo.loadLabel(getPackageManager()).toString();                        String pagName = packageInfo.packageName;                        if(pagName.equals("com.cric.mobile.manager")){        image.setBackgroundDrawable(packageInfo.applicationInfo.loadIcon(pageManage));                Intent intent = pageManage.getLaunchIntentForPackage("com.cric.mobile.manager");        startActivity(intent);