AlertDialog: The specified child already has a parent.

[Makhmud]

Всем доброго дня,

Подскажите, плиз, почему после второго нажатия на кнопку Create возвращает ошибку "The specified child already has a parent. You must call removeView() on the child's parent first."?

Заранее спасибо,
Махмуд

Код: Выделить всё

import android.app.AlertDialog;
import android.app.Dialog;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;




public class main extends ActionBarActivity implements View.OnClickListener {


    Button btCreate, btRemove;
    TextView tvTime, tvCnt;
    LinearLayout mView;
    Dialog dia;
    SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
    ArrayList<TextView> arrTv = new ArrayList<>(20);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btCreate = (Button)findViewById(R.id.btn_create);
        btCreate.setOnClickListener(this);
        btRemove = (Button)findViewById(R.id.btn_remove);
        btRemove.setOnClickListener(this);

        mViewCreate();
        dia = mAlDiaCreate();
        dia.show();

       /* dia = new Dialog(this);
        dia.setTitle("My Dialog");
        dia.setContentView(R.layout.dialog);
        dia.show();*/
    }

    private void mViewCreate() {
        mView=null;
        mView = (LinearLayout)getLayoutInflater().inflate(R.layout.dialog, null);
        tvTime = (TextView) mView.findViewById(R.id.tvTime);
        tvCnt = (TextView) mView.findViewById(R.id.tvTemp);
        tvTime.setText(sdf.format(new Date(System.currentTimeMillis())));
        tvCnt.setText("Кол-во TextView = " + String.valueOf(arrTv.size()));
    }

    public Dialog mAlDiaCreate() {
        AlertDialog.Builder adia = new AlertDialog.Builder(this);
        adia.setTitle("My Dialog");
        adia.setPositiveButton("Ok",null);
        adia.setNegativeButton("Cancel", null);
        adia.setView(mView);

        return adia.create();
    }


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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onClick(View view) {
        dia.dismiss();
        switch (view.getId()) {
            case R.id.btn_create:
                TextView tv1 = new TextView(this);
                tv1.setText("TextView#" + String.valueOf(arrTv.size() + 1));
                arrTv.add(tv1);

                mViewCreate();
                for (int i=0;i<arrTv.size();i++) {
                    mView.addView(arrTv.get(i), new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
                }
                break;

            case R.id.btn_remove:


/*                // если массив не пустой
                if (arrTv.size() > 0) {
                    TextView tv2 = arrTv.get(arrTv.size()-1);
                    mView.removeView(tv2);
                    arrTv.remove(tv2);
                }
                //adia.create();*/
                break;
            }
        /*dia.setContentView(mView);
        dia.show();*/
        dia = mAlDiaCreate();
        dia.show();
    }
}