horizontalscrollview+textview简单版

Posted 2020-06-28 <菜鸟@号>

/Hor/res/layout/activity_main.xml  布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
   
<HorizontalScrollView 
    android:id="@+id/hor"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    
    >
    <LinearLayout 
        android:id="@+id/lin"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        ></LinearLayout>
    
</HorizontalScrollView>

<android.support.v4.view.ViewPager
    android:id="@+id/viewp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true" >
</android.support.v4.view.ViewPager>

</LinearLayout>

/Hor/res/layout/f1.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
   <TextView 
       android:id="@+id/t"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="sdsss"
       />

</LinearLayout>

com.bawei.hor.MainActivity  主页

package com.bawei.hor;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.Color;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.HorizontalScrollView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.LinearLayout.LayoutParams;

public class MainActivity extends FragmentActivity {
   private String[] name=new String[]{"1","2","3","4","5","6","7"};
    private List<Fragment> list;
    private List<TextView> t_list;
    private HorizontalScrollView horizontalScrollView;
    private int width;
    @SuppressWarnings("deprecation")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
       horizontalScrollView = (HorizontalScrollView) findViewById(R.id.hor);
       LinearLayout linearLayout = (LinearLayout) findViewById(R.id.lin);
       final ViewPager viewPager= (ViewPager) findViewById(R.id.viewp);
        //获取屏幕宽度
      width = getWindowManager().getDefaultDisplay().getWidth();
       //加载viewpager页面
      steData();
       //viewpager适配
      FragmentManager fm = getSupportFragmentManager(); 
      viewPager.setAdapter(new MyFragment(fm,list));
      //viewpager监听
      viewPager.setOnPageChangeListener(new OnPageChangeListener() {
        
        @Override
        public void onPageSelected(int arg0) {
            // TODO Auto-generated method stub
            //判断滑到那页
            getpage(arg0);
        }
        
        

        @Override
        public void onPageScrolled(int arg0, float arg1, int arg2) {
            // TODO Auto-generated method stub
            
        }
        
        @Override
        public void onPageScrollStateChanged(int arg0) {
            // TODO Auto-generated method stub
            
        }
    });
      //最上面导航
      t_list = new ArrayList<TextView>();
      for(int i=0;i<name.length;i++){
          //每个textview的宽度
          LinearLayout.LayoutParams params=new LinearLayout.LayoutParams(width/3,LayoutParams.WRAP_CONTENT);
          
          TextView textView=new TextView(this);
          //距离上下左右
          textView.setPadding(20, 20, 20, 20);
          //赋值
          textView.setText(name[i]);
          //添加集合
          t_list.add(textView);
          //绑定
          textView.setTag(i);
          //将textview放到布局里
          linearLayout.addView(textView, i,params);
          //textview 监听  点哪个滑到那页
          textView.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                int m = (Integer) v.getTag();
                viewPager.setCurrentItem(m);
            }
        });
      }
    }
    //viewpager监听里的
    private void getpage(int arg0) {
        // TODO Auto-generated method stub
        //当前显示textview页
         TextView textView1 = t_list.get(arg0);
        for (int i = 0; i < t_list.size(); i++) {
            //将当前显示的textview放到中间
            TextView text=t_list.get(arg0);
            int k = text.getMeasuredWidth();
            int l = text.getLeft();
            int s = k / 2 + l - width / 2;
            horizontalScrollView.smoothScrollTo(s, 0);
            //得到所有textview
            TextView t = t_list.get(i);
            //给当前显示页面的textview页变色
            if (!t.equals(textView1)) {

                t.setTextColor(Color.BLACK);
            } else {
                t.setTextColor(Color.RED);

            }

            
        }
        
    }
   //new page页
    private void steData() {
        list = new ArrayList<Fragment>();
    for(int i=0;i<name.length;i++){
        //传值第几页
        Fragment1 f1=new Fragment1(name[i]);
        list.add(f1);
    }
    }

   
    
}

com.bawei.hor.MyFragment  viewpager适配

package com.bawei.hor;

import java.util.List;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.view.View;

public class MyFragment extends FragmentPagerAdapter {
    List<Fragment> list;
    public MyFragment(FragmentManager fm, List<Fragment> list) {
        super(fm);
        // TODO Auto-generated constructor stub
 this.list=list;
    }

    @Override
    public Fragment getItem(int arg0) {
        // TODO Auto-generated method stub
        return list.get(arg0);
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

    
    

}

com.bawei.hor.Fragment1   fragment页

package com.bawei.hor;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class Fragment1 extends Fragment{
    String name;
public Fragment1(String name) {
        // TODO Auto-generated constructor stub
  this.name=name;
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    View view=inflater.inflate(R.layout.f1, null);
    TextView textView= (TextView) view.findViewById(R.id.t);
    textView.setText(name);
    return view;
}
}