新闻列表小程序_编写android程序,在一个activity中展示两个fragment:一个用于展示新闻列表;当单

作者：小小林熬夜学编程 | 2024-04-03 11:27:19

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编写android程序,在一个activity中展示两个fragment:一个用于展示新闻列表;当单击

要求：

编写Android程序，在一个Activity中展示两个Fragment：一个用于展示新闻列表；当单击列表中的某一条新闻标题时，在另一个Fragment中显示新闻详情。

代码实现：

activity_main.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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.maotingting.news_procedure.MainActivity">
 
    <FrameLayout
        android:id="@+id/frame_left"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"/>
    <FrameLayout
        android:id="@+id/frame_right"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1" />
</LinearLayout>

fragment_left.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#FFCCCC"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="30dp"
        android:layout_gravity="center_horizontal"
        android:text="新闻热点"
        android:textColor="#3399FF"/>
    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="click1"
        android:textColor="#000000"
        android:background="#FFFFCC"
        android:layout_marginTop="20dp"
        android:text="#钟南山称想更快复工复学要继续保持距离#"/>
    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="click2"
        android:textColor="#000000"
        android:background="#FFFFCC"
        android:layout_marginTop="20dp"
        android:text="#最后一颗北斗三号组网卫星将于5月发射#"/>
    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="click3"
        android:textColor="#000000"
        android:background="#FFFFCC"
        android:layout_marginTop="20dp"
        android:text="#与我国接壤国家疫情输入风险攀升#"/>
    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="click4"
        android:textColor="#000000"
        android:background="#FFFFCC"
        android:layout_marginTop="20dp"
        android:text="#美国一只老虎新冠病毒检测呈阳性#"/>
    <Button
        android:id="@+id/button5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="click5"
        android:textColor="#000000"
        android:background="#FFFFCC"
        android:layout_marginTop="20dp"
        android:text="#多省最后一批援鄂医疗队回家#"/>
</LinearLayout>

fragment_right.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#99FF99"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="30dp"
        android:layout_gravity="center_horizontal"
        android:text="详情介绍"
        android:textColor="#000000"/>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textColor="#000000"
        android:layout_marginTop="20dp"
        android:text="详细内容请点击，前往原文了解——>" />
</LinearLayout>

fragment_right1.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#CCFFFF"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#FF6666"
        android:layout_gravity="center_horizontal"
        android:text="【#钟南山呼吁公众继续保持距离#】" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textColor="#000000"
        android:text="        本周，中国工程院院士钟南山通过世界卫生组织，给大家提醒：不管是在居家、公司或者公共场所，保持一定的距离是非常重要。当前不要参加集会，也不要聚餐。低风险不等于无风险。随着返工复工的进行和学生的陆续复学，大众依然要高度注意个人卫生健康习惯。
                                                            ——人民日报" />
</LinearLayout>

fragment_right2.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#CCFFFF"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#ff6666"
        android:layout_gravity="center_horizontal"
        android:text="【#最后一颗北斗三号组网卫星将于5月发射#！】" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textColor="#000000"
        android:text="        中国卫星导航系统管理办公室今天发布消息称，4月4日，第五十五颗北斗导航卫星，即#北斗三号最后一颗组网卫星#，如期运抵西昌卫星发射中心，这标志着全球星座组网进入最后冲刺阶段。这颗卫星属地球静止轨道卫星，将于西昌卫星发射中心开展测试、总装、加注等工作，计划于5月份发射。
                                                        ——中国青年报" />
</LinearLayout>

fragment_right3.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#CCFFFF"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#FF6666"
        android:layout_gravity="center_horizontal"
        android:text="【#与我国接壤国家疫情输入风险攀升#】" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textColor="#000000"
        android:text="      6日，国家卫健委新闻发言人米锋表示，4月5日#湖北外本土重症病例降至9例#，湖北除武汉外重症病例降至3例。与我国接壤的边境国家疫情输入我国风险持续攀升，多省报告了境外输入病例的关联病例，防输入压力持续加大，要始终保持警惕，防范本土疫情反弹。
                                                         ——人民日报" />
</LinearLayout>

fragment_right4.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#CCFFFF"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#FF6666"
        android:layout_gravity="center_horizontal"
        android:text="【#美国一只老虎新冠病毒检测呈阳性#】" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textColor="#000000"
        android:text="        【美国首次出现动物“中招”老虎病毒检测呈阳性】据彭博社报道，美国首次出现动物“中招”，纽约布朗克斯动物园一只4岁的老虎新冠病毒检测呈阳性。
                                                ——中国日报，LS" />
</LinearLayout>

fragment_right5.xml：


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="#99FFFF"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:weightSum="1">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24dp"
        android:textColor="#FF6666"
        android:layout_gravity="center_horizontal"
        android:text="【英雄凯旋！#多省最后一批援鄂医疗队回家#】" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20dp"
        android:textColor="#000000"
        android:text="        “你们冒着生命的危险，为湖北救了多少人！”近日，随着疫情防控形势好转，多省援鄂医疗队最后一批队员陆续踏上归程。他们在最冷的冬天出征，最最美的春天归来。他们用生命守护生命，#坚守战疫最后一班岗#，顺利凯旋！辛苦了白衣天使，请好好休养！
                 ——人民日报"/>
 
</LinearLayout>

LeftFragment.java：


package com.example.********.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******** on 2020/4/7.
 */
 
public class LeftFragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_left , container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

RightFragment.java：


package com.example.*******.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******* on 2020/4/7.
 */
 
public class RightFragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_right , container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

Right1Fragment.java：


package com.example.********.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******** on 2020/4/7.
 */
 
public class Right1Fragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_right1, container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

Right2Fragment.java：


package com.example.********.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******** on 2020/4/7.
 */
 
public class Right2Fragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_right2, container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

Right3Fragment.java：


package com.example.********.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******** on 2020/4/7.
 */
 
public class Right3Fragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_right3, container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

Right4Fragment.java：


package com.example.********.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******** on 2020/4/7.
 */
 
public class Right4Fragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_right4, container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

Right5Fragment.java：


package com.example.********.news_procedure;
 
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
/**
 * Created by ******** on 2020/4/7.
 */
 
public class Right5Fragment extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_right5, container ,false);
        return view;
    }
    @Override
    public void onPause() {
        super.onPause();
    }
}

MainActivity.java:


package com.example.**********.news_procedure;
 
import android.support.v7.app.AppCompatActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
 
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.frame_left, new LeftFragment());
        transaction.replace(R.id.frame_right, new RightFragment());
        transaction.commit();
    }
 
    public void click1(View view) {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.frame_right, new Right1Fragment());
        transaction.commit();
    }
 
    public void click2(View view) {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.frame_right, new Right2Fragment());
        transaction.commit();
    }
 
    public void click3(View view) {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.frame_right, new Right3Fragment());
        transaction.commit();
    }
 
    public void click4(View view) {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.frame_right, new Right4Fragment());
        transaction.commit();
    }
 
    public void click5(View view) {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.frame_right, new Right5Fragment());
        transaction.commit();
    }
}

运行结果显示：

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