将Dialogbox EditText存储到数据库中

Question

所以我有一个对话框，其中启用了EditText，当有人键入某个内容并点击添加按钮时，他们的文本会被添加到数据库中。这是我的主要活动＆＃34;名为IndivItem.java的代码。

public class IndivItem extends Activity {

TextView name, price;
Button descB, revB;
ImageView converse;
ImageButton fav, buy, compare;
TableLayout table_layout;
ReviewController revcon;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_indiv_item);

    revcon = new ReviewController(this);

    price = (TextView) findViewById(R.id.picPrice1);
    name = (TextView) findViewById(R.id.text1);

    descB = (Button) findViewById(R.id.desc);
    revB = (Button) findViewById(R.id.review);

    converse = (ImageView) findViewById(R.id.shoee1);

    fav = (ImageButton) findViewById(R.id.fv1);
    buy = (ImageButton) findViewById(R.id.co1);
    compare = (ImageButton) findViewById(R.id.cp1);

    table_layout = (TableLayout) findViewById(R.id.tableLayout1);

    BuildTable();

    revB.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(final View arg0) {
            // TODO Auto-generated method stub
            AlertDialog.Builder alertDialog = new AlertDialog.Builder(
                    IndivItem.this);

            // Setting Dialog Title

            alertDialog.setTitle("Review");

            // Setting Dialog Message
            alertDialog.setMessage("Add a Review");
            final EditText input = new EditText(IndivItem.this);
            LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.MATCH_PARENT,
                    LinearLayout.LayoutParams.MATCH_PARENT);
            input.setLayoutParams(lp);
            alertDialog
                    .setView(input)

                    .setNegativeButton("Cancel",
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog,
                                        int id) {
                                    // if this button is clicked, just close
                                    // the dialog box and do nothing
                                    dialog.cancel();
                                }
                            })

                    .setCancelable(false)
                    .setPositiveButton("Add",
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog,
                                        int id) {

                                    new MyAsync().execute();

                                    // toast saying review added
                                    Toast.makeText(getApplicationContext(),
                                            "Review Added!",
                                            Toast.LENGTH_SHORT).show();
                                    Intent home = new Intent(
                                            getApplicationContext(),
                                            IndivItem.class);
                                    startActivity(home);

                                }

                                // close dialog
                            });

            // show alert
            alertDialog.show();
        }
    });



    fav.setOnHoverListener(new OnHoverListener() {

        @Override
        public boolean onHover(View arg0, MotionEvent arg1) {
            // TODO Auto-generated method stub
            Toast.makeText(IndivItem.this, "Add to Favorites",
                    Toast.LENGTH_SHORT).show();

            return false;
        }
    });

    compare.setOnHoverListener(new OnHoverListener() {

        @Override
        public boolean onHover(View arg0, MotionEvent arg1) {
            // TODO Auto-generated method stub
            Toast.makeText(IndivItem.this, "Add to Compare List",
                    Toast.LENGTH_SHORT).show();

            return false;
        }
    });

}

private void BuildTable() {
    // TODO Auto-generated method stub
    revcon.open();
    Cursor c = revcon.readEntry();

    int rows = c.getCount();
    int cols = c.getColumnCount();

    c.moveToFirst();

    // outer for loop
    for (int i = 0; i < rows; i++) {

        TableRow row = new TableRow(IndivItem.this);
        row.setLayoutParams(new LayoutParams(
                LayoutParams.MATCH_PARENT,
                LayoutParams.WRAP_CONTENT));

        // inner for loop
        for (int j = 0; j < cols; j++) {

            TextView tv = new TextView(IndivItem.this);

            tv.setGravity(Gravity.CENTER);
            tv.setTextSize(18);
            tv.setPadding(0, 5, 0, 5);

            tv.setText(c.getString(j));

            row.addView(tv);

        }

        c.moveToNext();

        table_layout.addView(row);

    }
    revcon.close();

}

 private class MyAsync extends AsyncTask<Void, Void, Void> {

    @Override
    protected Void doInBackground(Void... arg0) {
        // TODO Auto-generated method stub


        String review = input.getText().toString();
        return null;

        revcon.open();
        revcon.createEntry(review);
           // BuildTable();

        return null;
    }}




@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, menu);
    return true;
}

}

这一行会发生什么：String review = input.getText().toString();， 给我一个错误，说错误无法解决。我不知道如何链接代码）：或者我做错了什么，请赐教，谢谢！