获取android 11中所有已安装的应用程序(API 30)，如何在android 11中安装所有其他应用程序？

import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import java.util.List;

private void getInstalledApps() {
    PackageManager packageManager = getPackageManager();
    List<ApplicationInfo> installedApps = packageManager.getInstalledApplications(PackageManager.GET_META_DATA);

    for (ApplicationInfo appInfo : installedApps) {
        // 在这里可以获取应用程序的相关信息，如包名、应用名等
        String packageName = appInfo.packageName;
        String appName = packageManager.getApplicationLabel(appInfo).toString();

        // 打印应用程序的包名和应用名
        Log.d("Installed App", "Package Name: " + packageName + ", App Name: " + appName);
    }
}

getInstalledApps();

private void installApp(String apkFilePath) {
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setDataAndType(Uri.fromFile(new File(apkFilePath)), "application/vnd.android.package-archive");
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(intent);
}