fragment的切换

最新推荐文章于 2024-09-23 17:05:38 发布

By_Weicy

最新推荐文章于 2024-09-23 17:05:38 发布

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文章标签： fragment之间的切换

本文链接：https://blog.youkuaiyun.com/weikai_/article/details/77970564

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本文介绍了一个使用ViewPager和RadioGroup实现页面切换联动效果的Android应用案例。通过自定义适配器，实现了两个Fragment之间的平滑切换，并利用RadioGroup进行选中状态同步。

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package com.example.yklx04;

import java.util.ArrayList;

import com.example.fragment.Fragment01;
import com.example.fragment.Fragment02;

import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;

public class Activity01 extends ActionBarActivity {

   private ViewPager view_parger;
   private ArrayList<Fragment> list;
   private RadioGroup radio_group;

   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_activity01);
       view_parger = (ViewPager) findViewById(R.id.view_parger);
       radio_group = (RadioGroup) findViewById(R.id.radio_group);

       list = new ArrayList<Fragment>();
       list.add(new Fragment01());
       list.add(new Fragment02());

       MyFragmentadapter adapter = new MyFragmentadapter(getSupportFragmentManager(),list);
       view_parger.setAdapter(adapter);
       view_parger.setOnPageChangeListener(new OnPageChangeListener() {

           @Override
           public void onPageSelected(int arg0) {
               // TODO Auto-generated method stub
               radio_group.check(radio_group.getChildAt(arg0).getId());
           }

           @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

           }
       });
       radio_group.setOnCheckedChangeListener(new OnCheckedChangeListener() {

           @Override
           public void onCheckedChanged(RadioGroup group, int checkedId) {
               // TODO Auto-generated method stub
               switch (checkedId) {
               case R.id.radio_button01:
                   view_parger.setCurrentItem(0, false);
                   break;
               case R.id.radio_button02:
                   view_parger.setCurrentItem(1, false);
                   break;

               default:
                   break;
               }
           }
       });

   }


}