Android高级控件系列八之碎片

<?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>

<?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>

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;
}
}