示例图：

MainActivity.java

package com.example.myintent;import androidx.activity.result.ActivityResultCallback;
import androidx.activity.result.ActivityResultLauncher;
import androidx.activity.result.contract.ActivityResultContract;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;public class MainActivity extends AppCompatActivity {private Button btnLogin,btnReset,btnSum;private TextView textView;private EditText etUserName,etPassWord;private EditText etNumberOne,etNumberTwo;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//获取视图中的组件btnLogin = findViewById(R.id.btn_login);btnReset = findViewById(R.id.btn_reset);btnSum = findViewById(R.id.btn_sum);textView =findViewById(R.id.tv_result);etUserName = findViewById(R.id.btn_user_name);etPassWord = findViewById(R.id.btn_pass_word);etNumberOne = findViewById(R.id.btn_number_one);etNumberTwo = findViewById(R.id.btn_number_two);//登录事件btnLogin.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//信息认证if(etUserName.getText().toString().equals("admin") && etPassWord.getText().toString().equals("123456")){//创建意图 跳转页面 1
//                Intent intent = new Intent();
//                intent.setClass(MainActivity.this, HomeActivity.class);//创建意图 跳转页面 2Intent intent = new Intent(MainActivity.this,HomeActivity.class);//数据传递 1 Bundle
//                    Bundle bundle = new Bundle();
//                    bundle.putString("userName",etUserName.getText().toString());
//                    bundle.putInt("passWold", Integer.parseInt(etPassWord.getText().toString()));
//                    intent.putExtras(bundle);//数据传递2intent.putExtra("userName",etUserName.getText().toString());intent.putExtra("passWold",Integer.valueOf(etPassWord.getText().toString()));//跳转startActivity(intent);}else {//密码不正确Toast.makeText(MainActivity.this,"您输入的用户名或密码不正确！",Toast.LENGTH_SHORT).show();}}});//重置btnReset.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//清空etUserName.setText("");etPassWord.setText("");}});//求和 事件 带返回结果的 意图跳转btnSum.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// mGetContent.launch("1");//意图传递参数Intent intent = new Intent(MainActivity.this,HomeActivity.class);intent.putExtra("numberOne",etNumberOne.getText().toString());intent.putExtra("numberTwo",etNumberTwo.getText().toString());//跳转 带返回结果startActivityForResult(intent,100);}});}//返回响应方法@Overrideprotected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {super.onActivityResult(requestCode, resultCode, data);//响应回来的数据textView.setText("requestCode"+requestCode+"resultCode:"+resultCode+"data:"+data.getExtras().getString("sum"));}}

在layout目录下创建一个空白的Empty Views Activity，activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"tools:context=".HomeActivity"><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="跳转成功 获取到数据："android:textSize="30sp"/><TextViewandroid:id="@+id/btn_home_conten"android:layout_width="wrap_content"android:layout_height="wrap_content"android:textColor="#ffff0000"android:textSize="30sp"/><TextViewandroid:text="两数之和是："android:layout_width="wrap_content"android:layout_height="wrap_content"android:textSize="30sp"/><TextViewandroid:id="@+id/btn_home_sum"android:layout_width="match_parent"android:layout_height="wrap_content"android:textColor="#ffff0000"android:textSize="30sp"android:gravity="center"/>
</LinearLayout>

会自动创建相对应的Activity类  HomeActivity.java

package com.example.myintent;import androidx.appcompat.app.AppCompatActivity;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;public class HomeActivity extends AppCompatActivity {private TextView textView,textSum;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_home);textView = findViewById(R.id.btn_home_conten);textSum =findViewById(R.id.btn_home_sum);//获取意图Intent intent = this.getIntent();//获取传递过来的参数Bundle bundle = intent.getExtras();//获取数据String userName = bundle.getString("userName");int passWold = bundle.getInt("passWold");//        int numOne  = Integer.valueOf(bundle.getString("numberOne"));
//        int numOne = Integer.valueOf(getIntent().getStringExtra("numberOne"));int numOne = Integer.parseInt(getIntent().getStringExtra("numberOne"));int numTwo = Integer.parseInt(getIntent().getStringExtra("numberTwo"));//设置到textView中textView.setText(userName +"----"+ passWold);textSum.setText((numOne+numTwo)+"");//设置返回 响应码 和 结果Intent resIntent = new Intent();resIntent.putExtra("sum",(numOne+numTwo)+"");setResult(500,resIntent);}
}