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最新推荐文章于 2025-06-04 20:19:48 发布

原创最新推荐文章于 2025-06-04 20:19:48 发布 · 325 阅读

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这里写图片描述

activity_main

<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=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#000000">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="微信"
            android:textColor="#ffffff"
            android:layout_weight="1"
            android:padding="15dp"/>

   </LinearLayout>
    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1">
    </android.support.v4.view.ViewPager>
        <RadioGroup
            android:id="@+id/radiogroup"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="center"
            android:layout_alignParentBottom="true">
            <RadioButton
                android:id="@+id/radiobutton_wechat"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:button="@null"
                android:drawableBottom="@drawable/radio_massege"
                android:gravity="center_horizontal"/>
            <RadioButton
                android:id="@+id/radiobutton_touch"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:drawableBottom="@drawable/radio_touch"
                android:button="@null" />
            <RadioButton
                android:id="@+id/radiobutton_dynamic"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:drawableBottom="@drawable/radio_dynamic"
                android:button="@null" />
        </RadioGroup>


</LinearLayout>

activity_fragment

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

</LinearLayout>

activity_fragment2

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

</LinearLayout>

activity_fragment3

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
<EditText
    android:id="@+id/ediText"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="测试Fragment"/>
</LinearLayout>

Fragment

MyFragment

public class MyFragment extends Fragment {
    private Button mButton;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.activity_fragment,null);
        mButton= (Button) view.findViewById(R.id.button_fragment);
        mButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getActivity(), "我点击了", Toast.LENGTH_SHORT).show();
            }
        });
        return view;
    }
}

MySecondFragment

public class MySecondFragment extends Fragment {
    private TextView mTextView;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.activity_fragment2,null);
        mTextView= (TextView) view.findViewById(R.id.textview);
        return view;
    }
    public void setText(String text){
        if(mTextView!=null){
            mTextView.setText(text);
        }
    }
}

MyThridFragment

public class MyThridFragment  extends Fragment{
    private EditText mEditText;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.activity_fragment3,null);
        mEditText= (EditText) view.findViewById(R.id.ediText);
        return view;
    }
    public String getText(){
        String s=null;
        if(mEditText!=null){
           s= mEditText.getText().toString();
        }
        return s;
    }
}

ViewPager

MyPagerFragmentAdapter

public class MyPagerFragmentAdapter extends FragmentPagerAdapter {
    private List<Fragment> mFragment;
    public MyPagerFragmentAdapter(FragmentManager fm,List<Fragment> mFragment) {
        super(fm);
        this.mFragment=mFragment;
    }

    @Override
    public Fragment getItem(int position) {
        return mFragment.get(position);
    }

    @Override
    public int getCount() {
        return mFragment.size();
    }
}

MainActivity

public class MainActivity extends FragmentActivity {
    private List<Fragment> mFragment;
    private ViewPager mViewPager;
    private MyFragment myFragment;
    private MySecondFragment mySecondFragment;
    private MyThridFragment myThridFragment;
    private FragmentManager mFragmentManager;
    private FragmentTransaction transaction;
    private RadioGroup mRadioGroup;
    private RadioButton mRadioButtonWechat;
    private RadioButton mRadioButtonTouch;
    private RadioButton mRadioButtonDynamic;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mViewPager= (ViewPager) findViewById(R.id.viewpager);
        myFragment=new MyFragment();
        mySecondFragment=new MySecondFragment();
        myThridFragment=new MyThridFragment();
        mFragment=new ArrayList<>();
        mFragment.add(myFragment);
        mFragment.add(mySecondFragment);
        mFragment.add(myThridFragment);
        mFragmentManager=getSupportFragmentManager();
//        transaction=mFragmentManager.beginTransaction();
//        transaction.add(R.id.viewpager,myFragment );
//        transaction.add(R.id.viewpager,mySecondFragment);
//        transaction.add(R.id.viewpager,myThridFragment);
//        transaction.hide(myFragment);
//        transaction.show(mySecondFragment);
//        transaction.hide(myThridFragment);
//        transaction.commit();
        MyPagerFragmentAdapter adapter=new MyPagerFragmentAdapter(mFragmentManager,mFragment);
        mViewPager.setAdapter(adapter);
        mRadioGroup= (RadioGroup) findViewById(R.id.radiogroup);
        mRadioButtonWechat= (RadioButton) findViewById(R.id.radiobutton_wechat);
        mRadioButtonTouch= (RadioButton) findViewById(R.id.radiobutton_touch);
        mRadioButtonDynamic= (RadioButton) findViewById(R.id.radiobutton_dynamic);
        mRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {

                if(checkedId==R.id.radiobutton_wechat){
                    mViewPager.setCurrentItem(0);
//                    transaction=mFragmentManager.beginTransaction();
//                    transaction.show(myFragment);
//                    transaction.hide(mySecondFragment);
//                    transaction.hide(myThridFragment);
//                    transaction.commit();
                } else if(checkedId==R.id.radiobutton_touch){
                    mViewPager.setCurrentItem(1);
//                    transaction=mFragmentManager.beginTransaction();
//                    transaction.hide(myFragment);
//                    transaction.show(mySecondFragment);
//                    transaction.hide(myThridFragment);
//                    transaction.commit();
                }else  if(checkedId==R.id.radiobutton_dynamic){
                    mViewPager.setCurrentItem(2);
//                    transaction=mFragmentManager.beginTransaction();
//                    transaction.hide(myFragment);
//                    transaction.hide(mySecondFragment);
//                    transaction.show(myThridFragment);
//                    transaction.commit();
                }


            }
        });

        mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {


            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });

    }
}