2024/6/10

所学时间：2小时

代码行数：500

博客园数：1篇

所学知识：

<?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:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Another Activity"
android:textSize="24sp"
android:layout_centerInParent="true" />

</RelativeLayout>

<?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">

<FrameLayout
android:id="@+id/fragmentContainer"
android:layout_width="match_parent"
android:layout_height="match_parent" />

</RelativeLayout>

<?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">

<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent" />

</RelativeLayout>

package com.example.test20;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import androidx.fragment.app.Fragment;

public class MyFragment extends Fragment {

private ListView listView;
private String[] data = {"Item 1", "Item 2", "Item 3"};

@SuppressLint("MissingInflatedId")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_layout, container, false);
listView = view.findViewById(R.id.listView);
ArrayAdapter<String> adapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_list_item_1, data);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// 处理点击事件，在这里跳转到另一个页面
Intent intent = new Intent(getActivity(), AnotherActivity.class);
startActivity(intent);
}
});
return view;
}
}

package com.example.test20;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

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

// 使用 FragmentManager 将 Fragment 添加到布局中
getSupportFragmentManager().beginTransaction()
.add(R.id.fragmentContainer, new MyFragment())
.commit();
}
}

 

package com.example.test20;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class AnotherActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_another);
// 在这里可以做一些其他的初始化工作
}
}