Andorid中Fragment简单切换案例

MainActivity

package com.xw.fragmentchange;import android.app.FragmentManager;import android.app.FragmentTransaction;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.RadioButton;import com.xw.fragmentchange.fragment.GiftFragment;import com.xw.fragmentchange.fragment.HomeFragment;import com.xw.fragmentchange.fragment.OrderFragment;import com.xw.fragmentchange.fragment.ShareFragement;/** * 演示点击标签切换对应的界面 */public class MainActivity extends AppCompatActivity implements View.OnClickListener{    private FragmentManager manager;    private FragmentTransaction transaction;    private RadioButton rb_home,rb_share,rb_gift,rb_order;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        manager = getFragmentManager();        transaction = manager.beginTransaction();        transaction.add(R.id.content_layout,new HomeFragment());        transaction.commit();        initView();    }    //初始化视图    public void initView(){        rb_home = findViewById(R.id.rb_home);        rb_share = findViewById(R.id.rb_share);        rb_gift = findViewById(R.id.rb_gift);        rb_order = findViewById(R.id.rb_order);        rb_home.setOnClickListener(this);        rb_share.setOnClickListener(this);        rb_gift.setOnClickListener(this);        rb_order.setOnClickListener(this);    }    /**     * 点击RadioButton触发的事件     */    @Override    public void onClick(View view) {        transaction = manager.beginTransaction();        switch (view.getId()){            case R.id.rb_home:                transaction.replace(R.id.content_layout,new HomeFragment());                break;            case R.id.rb_share:                transaction.replace(R.id.content_layout,new ShareFragement());                break;            case R.id.rb_gift:                transaction.replace(R.id.content_layout,new GiftFragment());                break;            case R.id.rb_order:                transaction.replace(R.id.content_layout,new OrderFragment());                break;        }        transaction.commit();    }}

HomeFragment(其余三个fragment名字不同，其余代码相同)

package com.xw.fragmentchange.fragment;import android.app.Fragment;import android.os.Bundle;import android.support.annotation.Nullable;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import com.xw.fragmentchange.R;/** * Created by Administrator on 2018/4/27. */public class HomeFragment extends Fragment {    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {        return inflater.inflate(R.layout.fragment_home,null);    }}

布局文件:

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

fragment_home.xml

<?xml version="1.0" encoding="utf-8"?>

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