Fragment的创建和添加tablayout

来源：互联网发布：手绘板画图软件编辑：程序博客网时间：2024/06/03 15:27

package com.bwie.zhoukao2;import android.support.annotation.IdRes;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentActivity;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentTransaction;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.RadioGroup;import com.bwie.zhoukao2.Utils.NetStateUtil;import com.bwie.zhoukao2.froagment.FaxianFragment;import com.bwie.zhoukao2.froagment.GengduoFragment;import com.bwie.zhoukao2.froagment.ShichangFragment;import com.bwie.zhoukao2.froagment.ShouyeFragment;import com.bwie.zhoukao2.froagment.TongzhiFragment;import com.bwie.zhoukao2.froagment.XiangfaFragment;public class MainActivity extends AppCompatActivity {    private RadioGroup radio_group;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        radio_group = (RadioGroup) findViewById(R.id.radio_group);        radio_group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(RadioGroup group, @IdRes int checkedId) {                switch (checkedId){                    case R.id.radio_01:                        addFrogment(new ShouyeFragment());                        break;                    case R.id.radio_02:                        addFrogment(new XiangfaFragment());                        break;                    case R.id.radio_03:                        addFrogment(new ShichangFragment());                        break;                    case R.id.radio_04:                        addFrogment(new TongzhiFragment());                        break;                    case R.id.radio_05:                        addFrogment(new GengduoFragment());                        break;                }            }        });        addFrogment(new ShouyeFragment());    }    public void addFrogment(Fragment fragment){        FragmentManager fro=getSupportFragmentManager();        FragmentTransaction fragmentTransaction = fro.beginTransaction();        fragmentTransaction.replace(R.id.frame_layout,fragment);        fragmentTransaction.commit();    }}

添加tablayout

package com.bwie.zhoukao2.froagment;
import android.os.Bundle;import android.support.annotation.Nullable;import android.support.design.widget.TabLayout;import android.support.v4.app.Fragment;import android.support.v4.view.ViewPager;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;
import com.bwie.zhoukao2.R;import com.bwie.zhoukao2.adapter.MyPagerAdapter;
import java.util.ArrayList;import java.util.List;
/** * Created by 老北城 on 2017/10/17. */
public class ShouyeFragment extends Fragment {
    private TabLayout tab;    private ViewPager vp;    private List<String> list;
    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View v=View.inflate(getActivity(), R.layout.shouye,null);        //找到控件        tab = (TabLayout) v.findViewById(R.id.tab);        vp = (ViewPager) v.findViewById(R.id.vp);
        return v;    }
    @Override    public void onActivityCreated(@Nullable Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);
        list = new ArrayList<String>();        list.add("动态");        list.add("热门");        list.add("发现");        vp.setAdapter(new MyPagerAdapter(getChildFragmentManager(),list));        tab.setupWithViewPager(vp);    }}
设置适配器
package com.bwie.zhoukao2.adapter;
import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentPagerAdapter;
import com.bwie.zhoukao2.froagment.ContentFragment;import com.bwie.zhoukao2.froagment.DongtaiFragment;import com.bwie.zhoukao2.froagment.FaxianFragment;
import java.util.List;
/** * Created by 老北城 on 2017/10/17. */public class MyPagerAdapter extends FragmentPagerAdapter {
    private List<String> tabs;
    public MyPagerAdapter(FragmentManager fm, List<String> tabs) {        super(fm);        this.tabs = tabs;    }
    public MyPagerAdapter(FragmentManager fm) {        super(fm);    }
    @Override    public CharSequence getPageTitle(int position) {        return tabs.get(position);    }
    @Override    public Fragment getItem(int position) {        Fragment f=null;        switch (position){            case 0:                f=new DongtaiFragment();                break;            case 1:                f=new ContentFragment();                break;            case 2:                f=new FaxianFragment();                break;        }
        return f;    }
    @Override    public int getCount() {        return tabs.size();    }}
tablayout的布局
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:orientation="vertical"    android:layout_width="match_parent"    android:layout_height="match_parent">
    <EditText        android:layout_width="match_parent"        android:layout_height="wrap_content" />    <!--tabLayout    修改 app:tabGravity="fill"  app:tabMode="fixed"，使选项卡可以平铺整个屏幕    -->    <android.support.design.widget.TabLayout        android:layout_width="match_parent"        android:layout_height="40dp"        app:tabGravity="fill"        app:tabIndicatorColor="@color/colorAccent"        app:tabMode="fixed"        app:tabSelectedTextColor="@color/colorPrimaryDark"        app:tabTextColor="@color/colorPrimary"        android:id="@+id/tab"></android.support.design.widget.TabLayout>
    <android.support.v4.view.ViewPager        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/vp"></android.support.v4.view.ViewPager>
</LinearLayout>

布局

<?xml version="1.0" encoding="utf-8"?><RelativeLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:layout_height="match_parent" tools:context="com.bwie.zhoukao2.MainActivity">
    <RadioGroup        android:id="@+id/radio_group"        android:layout_alignParentBottom="true"        android:orientation="horizontal"        android:layout_width="match_parent"        android:layout_height="40dp">
        <RadioButton            android:id="@+id/radio_01"            android:padding="10dp"            android:button="@null"            android:gravity="center"            android:checked="true"            android:text="首页"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="match_parent"            android:background="@drawable/radiobutton_selector"/>        <RadioButton            android:id="@+id/radio_02"            android:padding="10dp"            android:button="@null"            android:gravity="center"            android:text="想法"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="match_parent"            android:background="@drawable/radiobutton_selector"/>        <RadioButton            android:id="@+id/radio_03"            android:padding="10dp"            android:button="@null"            android:gravity="center"            android:text="市场"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="match_parent"            android:background="@drawable/radiobutton_selector"/>        <RadioButton            android:id="@+id/radio_04"            android:padding="10dp"            android:button="@null"            android:gravity="center"            android:text="通知"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="match_parent"            android:background="@drawable/radiobutton_selector"/>        <RadioButton            android:id="@+id/radio_05"            android:padding="10dp"            android:button="@null"            android:gravity="center"            android:text="更多"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="match_parent"            android:background="@drawable/radiobutton_selector"/>
    </RadioGroup>
    <FrameLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/frame_layout"        android:layout_above="@+id/radio_group"        ></FrameLayout>
</RelativeLayout>
另一个布局就是说页面上显示不一样的内容只需要一个textview
<?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">
    <TextView        android:textSize="20sp"        android:layout_gravity="center"        android:gravity="center"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/layout_tv"        />
</LinearLayout>

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