相关疑难解决方法(0)

想象一下,我有FragmentA,我从中启动了DialogFragment(有EditText框中).如何我能回到从价值EditText到FragmentA？我尽量让像这样,而这,但我没有成功.

我可以在Web开发中将变量设置为类似会话的上下文吗？

这是我的代码,我在Android应用程序启动时立即开发一个确认框:

package com.example.alertboxandloadingwidgets;

import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.Menu;
import android.widget.Toast;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Boolean result = showConfirmationBox("Are you sure you want to do this",
        this);
    }
    public Boolean showConfirmationBox(String messageToShow, final Context context) {
        // prepare the alert box
        AlertDialog.Builder alertbox = new AlertDialog.Builder(context);
        // set the message to display
        alertbox.setMessage(messageToShow);
        // set a positive/yes button and create a listener
        alertbox.setPositiveButton("Yes", …