java程式碼

 1 package com.example.myapplication;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.content.Intent;
 6 import android.os.Bundle;
 7 import android.view.View;
 8 import android.widget.Button;
 9 
10 publicclassAActivity extends AppCompatActivity {
11 privateButton btn_a;
 
12 
13 @Override
14 protectedvoidonCreate(Bundle savedInstanceState) {
15 super.onCreate(savedInstanceState);
16 setContentView(R.layout.activity_a);
17 btn_a=findViewById(R.id.btn_a);
18 btn_a.setOnClickListener(newView.OnClickListener() {
19 @Override
20 publicvoidonClick(View view) {
21 Intent intent=new
 
Intent(AActivity.this,BActivity.class);
22 Bundle bundle=newBundle();
23 bundle.putString("name","zhangsan");
24 bundle.putInt("number",20);
25 intent.putExtras(bundle);
26 startActivity(intent);
27 }
28 });
29 }
30 }

介面一 xml

 1 <?xml version="1.0"encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3
 
 android:layout_width="match_parent"
 4 android:layout_height="match_parent"
 5 android:orientation="vertical">
 6 <Button
 7 android:id="@+id/btn_a"
 8 android:layout_marginTop="200dp"
 9 android:layout_width="wrap_content"
10 android:layout_height="wrap_content"
11 android:text="跳轉到下一介面"
12 android:layout_gravity="center"/>
13 <TextView
14 android:layout_marginTop="50dp"
15 android:layout_width="match_parent"
16 android:layout_height="wrap_content"
17 android:text="點選跳轉到下一介面 這裡會傳遞兩個數：zhangsan,20"
18 android:textSize="20dp"
19 />
20 </LinearLayout>

介面二java

 1 package com.example.myapplication;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.os.Bundle;
 6 import android.widget.TextView;
 7 
 8 publicclassBActivity extends AppCompatActivity {
 9 privateTextView tv_b;
10 @Override
11 protectedvoidonCreate(Bundle savedInstanceState) {
12 super.onCreate(savedInstanceState);
13 setContentView(R.layout.activity_b);
14 tv_b=findViewById(R.id.tv_b);
15 Bundle bundle=getIntent().getExtras();
16 String name = bundle.getString("name");
17 intnumber = bundle.getInt("number");
18 
19 tv_b.setText(name+","+number);
20 }
21 }

介面三xml

 1 <?xml version="1.0"encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 
 4 android:layout_width="match_parent"
 5 android:layout_height="match_parent"
 6 android:orientation="vertical">
 7 
 8 <TextView
 9 android:id="@+id/tv_b"
10 android:layout_marginTop="200dp"
11 android:layout_width="match_parent"
12 android:layout_height="wrap_content"
13 android:gravity="center"
14 android:textColor="#000000"
15 android:textSize="20dp"
16 />
17 
18 </LinearLayout>