Android - Suppression de la mise en page par programme

J'ai une activité qui fait une mise en page par programme à partir d'une préférence partagée en utilisant une boucle. Les vues de texte et les boutons sont enfermés dans une présentation linéaire. L'utilisateur peut saisir autant de points de vue qu'il le souhaite. Maintenant, le bouton sera un bouton Supprimer. Lorsque vous appuyez sur enfoncé, je veux supprimer la mise en page linéaire, le bouton et les autres TextViews sont contenus. Comment puis-je faire cela?

Voici mon code: P>

package com.dirkjan.myschools;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MainActivity extends Activity {

LinearLayout subjectLeft, subjectRight;

Button addSubj;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    subjectLeft = (LinearLayout) findViewById(R.id.llSubjectLeft);
    subjectRight = (LinearLayout) findViewById(R.id.llSubjectRight);

    //Load the saved subjects
    SharedPreferences getSubjects = getSharedPreferences("SubjectInfo_Prefs", MODE_PRIVATE);
    SharedPreferences.Editor editor = getSubjects.edit();

    int subjectCount = getSubjects.getInt("count", 0);
    if (subjectCount > 0 ){
        for (int i = 1; i <= subjectCount; i++){
            //Set the linear layout for each subject
            LinearLayout ll = new LinearLayout(this);
            ll.setOrientation(LinearLayout.VERTICAL);
            LinearLayout.LayoutParams llParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

            float scale = getResources().getDisplayMetrics().density;
            //SET BOTTOM MARGIN
            float margin = 5; //RESIZE MARGIN HERE!
            int margs = (int) (margin * scale + 0.5f);

            //SET PADDING IN DP
            float padding = 5; //RESIZE PADDING HERE!
            int pads = (int) (padding * scale +0.5f);
            llParams.setMargins(0,0,0,margs);

            //SETTING THE LINEARLAYOUT PARAMS
            ll.setLayoutParams(llParams);
            ll.setPadding(pads, pads, pads, pads);

            //SETTING THE BACKGROUND COLOR OF THE LINEAR LAYOUT
            String chosenColor = getSubjects.getString("chosenColor" + i, "BLUE");

            if (chosenColor.equals("Green")){
                ll.setBackgroundResource(R.color.HoloGreen);
            }else if (chosenColor.equals("Blue")){
                ll.setBackgroundResource(R.color.HoloBlue);
            }else if (chosenColor.equals("Gray")){
                ll.setBackgroundResource(R.color.HoloGray);
            }else if (chosenColor.equals("Orange")){
                ll.setBackgroundResource(R.color.HoloOrange);
            }else {
                ll.setBackgroundResource(R.color.HoloYellow);
            }

            //ADDING THE LAYOUT TO THE APPROPRIATE CONTAINER (LEFT OR RIGHT)
            if (i % 2 == 1){
                subjectLeft.addView(ll);
            } else {
                subjectRight.addView(ll);
            }

            //SETTING THE SUBJECT NAME TEXTVIEW
            TextView SubjectName = new TextView(this);
            SubjectName.setText(getSubjects.getString("subjectName" + i, "Error"));
            SubjectName.setLayoutParams(new ViewGroup.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,
                    ViewGroup.LayoutParams.WRAP_CONTENT));
            SubjectName.setTextSize(22);
            SubjectName.setTypeface(Typeface.DEFAULT_BOLD);

            //SETTING THE SUBJECT NUMB TEXT VIEW
            TextView SubjectNumber = new TextView(this);
            SubjectNumber.setText(getSubjects.getString("subjectNumb" + i, "Error"));
            SubjectNumber.setLayoutParams(new ViewGroup.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,
                    ViewGroup.LayoutParams.WRAP_CONTENT));
            SubjectNumber.setTextSize(16);

            //Creating the divider line
            ImageView divider = new ImageView(this);
            LinearLayout.LayoutParams dividerParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 2);
            divider.setLayoutParams(dividerParams);
            divider.setBackgroundResource(R.color.Black);

            //Add Views into the Layout
            ll.addView(SubjectNumber);
            ll.addView(SubjectName);
            ll.addView(divider);
        }



    }

    addSubj = (Button) findViewById(R.id.buttonPlusSubject);
    addSubj.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            Intent toAddSubj = new Intent(MainActivity.this,
                    AddSubjectActivity.class);
            startActivity(toAddSubj);
            finish();
        }
    });
}






@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

}