作业

一、页面布局

<?xml version="1.0" encoding="utf-8"?>
<RadioGroup 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"
    tools:context="com.helloworld.myapplication.MainActivity">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ellipsize="marquee"
        android:singleLine="true"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:text=" NBA巅峰时刻 "
        android:gravity="center"
        android:textColor="#993399"
        android:textSize="30sp" />

    <ImageView
        android:id="@+id/picture"
        android:layout_width="250dp"
        android:layout_height="200dp"
        android:layout_gravity="center"
        android:src="@drawable/nba"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="20dp"
        android:orientation="horizontal">
        <RadioGroup
            android:id="@+id/radio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:paddingEnd="20dp"
            android:orientation="horizontal">
            <RadioButton
                android:id="@+id/QD"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="25sp"
                android:text="乔丹" />
            <RadioButton
                android:id="@+id/KB"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="25sp"
                android:text="科比" />
            <RadioButton
                android:id="@+id/MD"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="25sp"
                android:text="麦迪" />
        </RadioGroup>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="25dp"
        android:orientation="horizontal">
        <RadioGroup
            android:id="@+id/radio2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:paddingEnd="25dp"
            android:orientation="horizontal">

            <RadioButton
                android:id="@+id/ZMS"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="詹姆斯"
                android:textSize="25sp" />

            <RadioButton
                android:id="@+id/KL"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="25sp"
                android:text="库里" />
            <RadioButton
                android:id="@+id/ZBL"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="25sp"
                android:text="张伯伦" />
        </RadioGroup>
    </LinearLayout>
</RadioGroup>

二、JAVA代码及功能实现

package com.helloworld.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;


public class MainActivity extends AppCompatActivity {
        private ImageView picture;
        private RadioGroup radio;
        private RadioButton KB;
        private RadioButton QD;
        private RadioButton MD;
        private RadioGroup radio2;
        private RadioButton ZMS;
        private RadioButton KL;
        private RadioButton ZBL;
        private ImageView nba;
        ImageView kb,kl,md,qd,zms,zbl;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            picture = (ImageView) findViewById(R.id.picture);
            radio= (RadioGroup) findViewById(R.id.radio);
            KB = (RadioButton) findViewById(R.id.KB);
            QD = (RadioButton) findViewById(R.id.QD);
            MD = (RadioButton) findViewById(R.id.MD);
            radio2=(RadioGroup) findViewById(R.id.radio2) ;
            ZMS = (RadioButton) findViewById(R.id.ZMS);
            KL = (RadioButton) findViewById(R.id.KL);
            ZBL = (RadioButton) findViewById(R.id.ZBL);

            radio.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
                public void onCheckedChanged(RadioGroup radioGroup, int wqm) {
                    if (KB.isChecked()) {
                        ZMS.setChecked(false);
                        ZBL.setChecked(false);
                        KL.setChecked(false);
                        picture.setImageResource(R.drawable.kb);
                    }
                    if (QD.isChecked()) {
                        ZMS.setChecked(false);
                        ZBL.setChecked(false);
                        KL.setChecked(false);
                        picture.setImageResource(R.drawable.qd);
                    }
                    if (MD.isChecked()) {
                        ZMS.setChecked(false);
                        ZBL.setChecked(false);
                        KL.setChecked(false);
                        picture.setImageResource(R.drawable.md);
                    }
                    radio2.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
                        public void onCheckedChanged(RadioGroup radioGroup, int wqm) {
                    if (ZMS.isChecked()) {
                        KB.setChecked(false);
                        QD.setChecked(false);
                        MD.setChecked(false);
                        picture.setImageResource(R.drawable.zms);
                    }
                    if (KL.isChecked()) {
                        KB.setChecked(false);
                        QD.setChecked(false);
                        MD.setChecked(false);
                        picture.setImageResource(R.drawable.kl);
                    }
                    if (ZBL.isChecked()) {
                        KB.setChecked(false);
                        QD.setChecked(false);
                        MD.setChecked(false);
                        picture.setImageResource(R.drawable.zbl);
                    }
                }
            });
        }

    });
        }
  }

三、效果展示