Android高级控件系列八之碎片

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效果图：

代码实例：

xml布局代码：

总：

<?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"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:layout_height="match_parent" tools:context="com.zking.laci.android10.MainActivity"    android:orientation="horizontal"    >    <fragment        android:layout_width="0dp"        android:layout_height="match_parent"        android:layout_weight="1"        android:id="@+id/fragment_left_main"        android:name="com.zking.laci.android10.LeftFragment"        ></fragment>    <fragment        android:layout_width="0dp"        android:layout_height="match_parent"        android:layout_weight="2"        android:id="@+id/fragment_right_mian"        android:name="com.zking.laci.android10.RightFragment"        ></fragment>    </LinearLayout>

分支：

<?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:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="这是小白的布局"        /></LinearLayout>

<?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:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="这是小黑的布局"        /></LinearLayout>

<?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:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="这是小红的布局"        /></LinearLayout>

<?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">    <ListView        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/lv_fragment_left"        ></ListView></LinearLayout>

<?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:layout_width="match_parent"        android:layout_height="wrap_content"        android:id="@+id/tv_fragment_right"        /></LinearLayout>

Java代码：

package com.zking.laci.android10;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by Laci on 2017/6/15. */public class BaiFragment extends Fragment{    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        return inflater.inflate(R.layout.fragment_bai,null);    }}

package com.zking.laci.android10;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by Laci on 2017/6/15. */public class HeiFragment extends Fragment{    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        return inflater.inflate(R.layout.fragment_hei,null);    }}

package com.zking.laci.android10;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by Laci on 2017/6/15. */public class RedFragment extends Fragment{    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        return inflater.inflate(R.layout.fragment_red,null);    }}

package com.zking.laci.android10;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }}

package com.zking.laci.android10;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by Laci on 2017/6/15. */public class RightFragment extends Fragment{    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View v=inflater.inflate(R.layout.fragment_right,null);        return v;    }}

package com.zking.laci.android10;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentTransaction;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.TextView;/** * Created by Laci on 2017/6/15. */public class LeftFragment extends Fragment{    private ListView lv;    private String names[]={"小白","小红","小黑"};    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View v=inflater.inflate(R.layout.fragment_left,null);        lv = (ListView) v.findViewById(R.id.lv_fragment_left);        ArrayAdapter aa=new ArrayAdapter(getActivity(),android.R.layout.simple_list_item_1,names);        lv.setAdapter(aa);        //给左边的ListView设值事件        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                //右边同样的布局                TextView tv= (TextView) getActivity().findViewById(R.id.tv_fragment_right);                tv.setText(names[position]);                //获取碎片的管理者                FragmentManager fm=getFragmentManager();                //获取事务                FragmentTransaction ft=fm.beginTransaction();                //右边不同布局                switch (position) {                    case 0:                        BaiFragment bf=new BaiFragment();                        ft.replace(R.id.fragment_right_mian,bf);                        break;                    case 1:                        RedFragment rf=new RedFragment();                        ft.replace(R.id.fragment_right_mian,rf);                        break;        case 2:        HeiFragment hf=new HeiFragment();        ft.replace(R.id.fragment_right_mian,hf);        break;    }                ft.commit();}        });        return v;    }}

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