fragment点选择器drawable

package com.example.horzatalscallview;

import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

import android.os.Bundle;
import android.os.Handler;
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.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;

import com.example.adapter.MyPagerAdapter;
import com.example.fragment.Fragment01;
import com.example.fragment.Fragment02;
import com.example.fragment.Fragment03;

public class MainActivity extends FragmentActivity implements OnPageChangeListener{
    private ViewPager mypager;
    private List<Fragment> list;
    private Fragment01 f1;
    private Fragment02 f2;
    private Fragment03 f3;
    private FragmentManager fm;
    private List<View>dots;
    private View view;
    private LinearLayout yuandian;
    private int olddotindex=0;
    int i=0;
    private Handler h=new Handler(){
        public void handleMessage(android.os.Message msg) {
            if(msg.what==1){
                mypager.setCurrentItem(i);
                dots.get(olddotindex).setBackgroundResource(R.drawable.dot_nomal);
                dots.get(i).setBackgroundResource(R.drawable.dot_focus);
                olddotindex=i;
            }
            
        };
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        init();
        new Timer().schedule(new TimerTask() {
            
            @Override
            public void run() {
                // TODO Auto-generated method stub
                i++;
                if(i==3){
                    i=0;
                }
                h.sendEmptyMessage(1);
            }
        }, 1000, 1000);
        getDotsList();
        dots.get(0).setBackgroundResource(R.drawable.dot_focus);
    }
    private void getDotsList() {
        // TODO Auto-generated method stub
        dots = new ArrayList<View>();
        //循环图片数组，创建对应数量的dot
        for (int i = 0; i <3 ; i++) {
            view=LayoutInflater.from(getApplicationContext()).inflate(R.layout.dots, null);
            //得到布局中的dot点组件
        View dot=view.findViewById(R.id.dotview);
        //收集dot;
        dots.add(dot);
        //把布局添加到线性布局
        yuandian.addView(view);
        }
    }
    private void init() {
        // TODO Auto-generated method stub
        mypager=(ViewPager) findViewById(R.id.mypager);
        yuandian=(LinearLayout) findViewById(R.id.yuandian);
        initdata();
        mypager.setOnPageChangeListener(this);
        fm=getSupportFragmentManager();
        mypager.setAdapter(new MyPagerAdapter(fm, list));
    }
    private void initdata() {
        // TODO Auto-generated method stub
        list=new ArrayList<Fragment>();
        f1=new Fragment01();
        f2=new Fragment02();
        f3=new Fragment03();
        list.add(f1);
        list.add(f2);
        list.add(f3);
        
    }
    @Override
    public void onPageScrollStateChanged(int arg0) {
        // TODO Auto-generated method stub
        
    }
    @Override
    public void onPageScrolled(int arg0, float arg1, int arg2) {
        // TODO Auto-generated method stub
        
    }
    @Override
    public void onPageSelected(int position) {
        // TODO Auto-generated method stub
        setSelected();
    }
    private void setSelected() {
        // TODO Auto-generated method stub
        
    }


}

package com.example.adapter;

import java.util.List;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.view.View;

public class MyPagerAdapter extends FragmentPagerAdapter {
    private List<Fragment>list;
    
    public MyPagerAdapter(FragmentManager fm,List<Fragment>list) {
        super(fm);
        // TODO Auto-generated constructor stub
        this.list=list;
    }
    
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

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

}

 

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
    <solid android:color="#f00"/>
    <corners android:radius="8dip"/>

</shape>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <solid android:color="#313037"/>
<corners android:radius="8dip"/>
</shape>

<RelativeLayout 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"
    tools:context=".MainActivity" >

    <android.support.v4.view.ViewPager
        android:id="@+id/mypager"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/hello_world" />
  <LinearLayout 
    android:id="@+id/yuandian"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:layout_alignParentBottom="true" />

</RelativeLayout>

<?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" >
    
  <View 
       android:id="@+id/dotview"
       android:layout_width="8dp"
       android:layout_height="8dp"
        android:layout_margin="10dp"
        android:background="@drawable/dot_nomal"
       /> 
</LinearLayout>