每日总结3/31

所花时间：3小时

代码量：如下：

博客量：本学期截至目前34篇

了解到的知识点：医学文献的检索

在今天我们团队完成了外包杯的那个系统软件，的javaweb页面，其中包括文字检索等一系列功能，和app中的界面设计。

以下代码为底部导航栏的实现：

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package com.example.wenxian; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.viewpager.widget.PagerAdapter; import androidx.viewpager.widget.ViewPager; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.RadioButton; import android.widget.RadioGroup; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity {       private ViewPager mViewPager;     private RadioGroup mRadioGroup;     private RadioButton tab1,tab2,tab3,tab4;  //四个单选按钮     private List<View> mViews;   //存放视图     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);           initView();//初始化数据         //对单选按钮进行监听，选中、未选中         mRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {             @Override             public void onCheckedChanged(RadioGroup radioGroup, int i) {                 switch (i) {                     case R.id.rb_msg:                         mViewPager.setCurrentItem(0);                         break;                     case R.id.rb_people:                         mViewPager.setCurrentItem(1);                         break;                       case R.id.rb_me:                         mViewPager.setCurrentItem(2);                         break;                 }             }         });       }       private void initView() {         //初始化控件         mViewPager=findViewById(R.id.viewpager);         mRadioGroup=findViewById(R.id.rg_tab);         tab1=findViewById(R.id.rb_msg);         tab2=findViewById(R.id.rb_people);         tab3=findViewById(R.id.rb_me);           mViews=new ArrayList<View>();//加载，添加视图         mViews.add(LayoutInflater.from(this).inflate(R.layout.activity_msg,null));         mViews.add(LayoutInflater.from(this).inflate(R.layout.activity_people,null));         mViews.add(LayoutInflater.from(this).inflate(R.layout.activity_me,null));           mViewPager.setAdapter(new MyViewPagerAdapter());//设置一个适配器         //对viewpager监听，让分页和底部图标保持一起滑动         mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {             @Override             public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {               }               @Override   //让viewpager滑动的时候，下面的图标跟着变动             public void onPageSelected(int position) {                 switch (position) {                     case 0:                         tab1.setChecked(true);                         tab2.setChecked(false);                         tab3.setChecked(false);                           break;                     case 1:                         tab1.setChecked(false);                         tab2.setChecked(true);                         tab3.setChecked(false);                           break;                     case 2:                         tab1.setChecked(false);                         tab2.setChecked(false);                         tab3.setChecked(true);                                                 break;                 }             }               @Override             public void onPageScrollStateChanged(int state) {               }         });     }       //ViewPager适配器     private class MyViewPagerAdapter extends PagerAdapter {         @Override         public int getCount() {             return mViews.size();         }             @Override         public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {             return view==object;         }           @Override         public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {             container.removeView(mViews.get(position));         }           @NonNull         @Override         public Object instantiateItem(@NonNull ViewGroup container, int position) {             container.addView(mViews.get(position));             return mViews.get(position);         }     } }