Activity与AlertDialog值传递

package com.android.alertdialog; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.EditText; import android.widget.TextView; public class SecondActivity extends Activity{ private EditText nameEditText; private EditText passwordEditText; private TextView view; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.first); view = (TextView) findViewById(R.id.textView); showRenameCategoryDialog(); } private void showRenameCategoryDialog() { //final LayoutInflater factory = LayoutInflater.from(this); final View textEntryView = factory.inflate(R.layout.second, null); final AlertDialog.Builder alert = new AlertDialog.Builder(SecondActivity.this); alert.setTitle("alert Title"); alert.setView(textEntryView); alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog,int whichButton) { nameEditText = (EditText)textEntryView.findViewById(R.id.password_edit); passwordEditText = (EditText)textEntryView.findViewById(R.id.username_edit); //setTitle(asdu.getText().toString()); view.setText("第一个值为："+nameEditText.getText().toString()+"第二个值为："+passwordEditText.getText().toString()); } }); alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { } }); //alert.create(); alert.show(); } }