ViewPager与Fragment结合使用，可滑动，可点击

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布局文件

<?xml version="1.0" encoding="utf-8"?><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"    tools:context="com.baiw.testdeom.View.activity.MainActivity">    <android.support.v4.view.ViewPager        android:id="@+id/Main_Viewpager"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_weight="1"></android.support.v4.view.ViewPager>    <RadioGroup        android:id="@+id/Main_RadioGroup"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <RadioButton            android:id="@+id/rb_01"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:button="@null"            android:text="漫画"            android:textSize="25sp" />        <RadioButton            android:id="@+id/rb_02"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:button="@null"            android:text="社区"            android:textSize="25sp" />        <RadioButton            android:id="@+id/rb_03"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:button="@null"            android:text="会员"            android:textSize="25sp" />        <RadioButton            android:id="@+id/rb_04"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:button="@null"            android:text="我的"            android:textSize="25sp" />    </RadioGroup></LinearLayout>

 private void initView() {//找控件        rg = (RadioGroup) findViewById(R.id.Main_RadioGroup);        rg.setOnCheckedChangeListener(this);        rb_1 = (RadioButton) findViewById(R.id.rb_01);        rb_2 = (RadioButton) findViewById(R.id.rb_02);        rb_3 = (RadioButton) findViewById(R.id.rb_03);        rb_4 = (RadioButton) findViewById(R.id.rb_04);        viewPager = (ViewPager) findViewById(R.id.Main_pager);        //初始化适配器        adapter = new MainPagerAdapter(getSupportFragmentManager());        viewPager.setAdapter(adapter);                //viewpager的监听        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {            @Override            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {            }            @Override            public void onPageSelected(int position) {//pager滑动的时候，根据角标radiobutton被选中                switch (position) {                    case 0:                        rb_1.setChecked(true);                        break;                    case 1:                        rb_2.setChecked(true);                        break;                    case 2:                        rb_3.setChecked(true);                        break;                    case 3:                        rb_4.setChecked(true);                        break;                }            }            @Override            public void onPageScrollStateChanged(int state) {            }        });    }

初始化Fragment并添加到集合中

    private void initEventes() {        Fragment1 fragment1 = new Fragment1();        Fragment2 fragment2 = new Fragment2();        Fragment3 fragment3 = new Fragment3();        Fragment4 fragment4 = new Fragment4();        fragments.add(fragment1);        fragments.add(fragment2);        fragments.add(fragment3);        fragments.add(fragment4);    }

把集合传到适配器中

    private void initGetDate() {        adapter.getDate(fragments);        adapter.notifyDataSetChanged();    }

 //点击rg可以跳转    @Override    public void onCheckedChanged(RadioGroup group, @IdRes int checkedId) {        int current = 0;  //初始值为0        switch (checkedId) {            case R.id.rb_01:                current = 0;//第一个pager界面是0                break;            case R.id.rb_02:                current = 1;                break;            case R.id.rb_03:                current = 2;                break;            case R.id.rb_04:                current = 3;                break;        }        if (viewPager.getCurrentItem() != current) {            //vp.setCurrentItem(current);            viewPager.setCurrentItem(current, false);        }    }

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