Java Android Studio-如何向弹出窗口发送数据？

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事实上，我的任务是创建一个应用程序来计算asynctask的输入速度，但我和我的朋友找不到方法

我想将文本视图中的文本从主页发送到弹出窗口

这是我的弹出式java，这里我遇到了使用getintent获取文本的问题，gettext变为红色，我可以成功运行它

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.testlab4.MainActivity"
    android:background="#DFD367">

    <TextView
        android:text="@string/_00_00_00"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/textView"
        android:textSize="50sp"
        android:textStyle="bold"
        android:textColor="#8E3CA5"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <Button
        android:id="@+id/btnCheck"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="310dp"
        android:layout_marginEnd="140dp"
        android:text="@string/check" />

    <Button
        android:id="@+id/btnLap"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginStart="1000dp"
        android:layout_marginTop="400dp"
        android:text="@string/save_lap" />

    <ListView
        android:id="@+id/listview1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="1200dp" />

    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="210dp"
        android:clickable="true"
        android:editable="true"
        android:ems="10"
        android:gravity="start|top"
        android:inputType="textMultiLine" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="false"
        android:layout_alignParentEnd="false"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="150dp"
        android:text="@string/the_quick_brown_fox_jump_over_a_lazy_dog"
        android:textSize="18sp" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="90dp"
        android:text="@string/type_this_sentences" />

</RelativeLayout>

package com.example.testlab4;

import android.content.Intent;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.os.Handler;

import androidx.appcompat.app.AppCompatActivity;
import android.os.AsyncTask;
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    TextView textView;
    EditText start;
    Button result, lap ;
    long MillisecondTime, StartTime, TimeBuff, UpdateTime = 0L ;
    Handler handler;
    int Seconds, Minutes, MilliSeconds ;
    ListView listView ;
    String[] ListElements = new String[] {  };
    List<String> ListElementsArrayList ;
    ArrayAdapter<String> adapter ;

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

        textView = (TextView)findViewById(R.id.textView);
        start = (EditText) findViewById(R.id.editText);
        result = (Button)findViewById(R.id.btnCheck);
        lap = (Button)findViewById(R.id.btnLap) ;
        listView = (ListView)findViewById(R.id.listview1);


        handler = new Handler() ;

        ListElementsArrayList = new ArrayList<String>(Arrays.asList(ListElements));

        adapter = new ArrayAdapter<String>(MainActivity.this,
                android.R.layout.simple_list_item_1,
                ListElementsArrayList
        );

        listView.setAdapter(adapter);

        start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {


                StartTime = SystemClock.uptimeMillis();
                handler.postDelayed(runnable, 0);
                start.getText().toString();

            }
        });

        result.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                TimeBuff += MillisecondTime;

                handler.removeCallbacks(runnable);

                result.setEnabled(true);

                openDialog();

                MillisecondTime = 0L ;
                StartTime = 0L ;
                TimeBuff = 0L ;
                UpdateTime = 0L ;
                Seconds = 0 ;
                Minutes = 0 ;
                MilliSeconds = 0 ;

                textView.setText("00:00:00");

                ListElementsArrayList.clear();

                adapter.notifyDataSetChanged();

                start.setText("");
                String speed = start.getText().toString();

                Intent intent = new Intent(MainActivity.this, ExampleDialog.class);
                intent.putExtra("SPEED", speed);
                startActivity(intent);
            }
        });


    }

    public Runnable runnable = new Runnable() {

        public void run() {

            MillisecondTime = SystemClock.uptimeMillis() - StartTime;
            UpdateTime = TimeBuff + MillisecondTime;
            Seconds = (int) (UpdateTime / 1000);
            Minutes = Seconds / 60;
            Seconds = Seconds % 60;
            MilliSeconds = (int) (UpdateTime % 1000);

            textView.setText("" + Minutes + ":"
                    + String.format("%02d", Seconds) + ":"
                    + String.format("%03d", MilliSeconds));

            handler.postDelayed(this, 0);
        }

    };
    public void openDialog(){
        ExampleDialog exampleDialog = new ExampleDialog();
        exampleDialog.show(getSupportFragmentManager(), "example dialog");
    }
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/textView2"
        android:layout_width="381dp"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginStart="22dp"
        android:layout_marginTop="42dp"
        android:text="@string/the_quick_brown_fox_jump_over_a_lazy_dog"
        android:textSize="20sp"
        android:textColor="#DC7979"/>

    <TextView
        android:id="@+id/textView5"
        android:layout_width="181dp"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_marginStart="22dp"
        android:layout_marginTop="85dp"
        android:text="@string/typingSpeed"
        android:textSize="17sp" />

    <TextView
        android:id="@+id/txtOutput"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginTop="85dp"
        android:layout_marginEnd="174dp"
        android:text="       "
        android:textSize="17sp"/>

    <TextView
        android:id="@+id/textView7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginTop="84dp"
        android:layout_marginEnd="77dp"
        android:text="@string/millisecond"
        android:textSize="17sp" />
</RelativeLayout>

package com.example.testlab4;


import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;


import androidx.appcompat.app.AppCompatDialogFragment;

public class ExampleDialog extends AppCompatDialogFragment {


    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {




        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        LayoutInflater inflater = getActivity().getLayoutInflater();
        final View view = inflater.inflate(R.layout.activity_pop_up, null);

        builder.setView(view)
                .setTitle("TYPING RESULT")
                .setPositiveButton("ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                    Intent intent = getActivity().getIntent();
                    String speed = intent.getStringExtra("SPEED");
                    TextView mySpeed = view.findViewById(R.id.txtOutput);
                    mySpeed.setText(speed);
                });

        return builder.create();

    }
}