fragment的使用

head.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="@+id/head_iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher"/>

<TextView
android:id="@+id/head_tv"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center"
android:text="这是head"/>

</LinearLayout>

body.xml

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

</LinearLayout>

低级的方法：项目名为Fragment

HeadFragment.java

package com.example.fragment;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Toast;

public class HeadFragment extends Fragment{
private ImageView iv;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view=inflater.inflate(R.layout.head, container, false);
iv=(ImageView) view.findViewById(R.id.head_iv);
iv.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
Toast.makeText(getActivity(), "Click head", 1000).show();
}
});
return view;
}
}

BodyFragment.java

package com.example.fragment;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Toast;

public class BodyFragment extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view=inflater.inflate(R.layout.body, container, false);
return view;
}
}


activity_main.xml

<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<LinearLayout
android:id="@+id/main_head"
android:layout_width="match_parent"
android:layout_height="wrap_content">

</LinearLayout>
<LinearLayout
android:id="@+id/main_body"
android:layout_width="match_parent"
android:layout_height="match_parent">

</LinearLayout>

</LinearLayout>

MainActivity.java

package com.example.fragment;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.Window;
import android.widget.LinearLayout;

public class MainActivity extends FragmentActivity {
private LinearLayout mainHead, mainBody;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 设置没有标题栏，必须写在setContentview之前
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
FragmentManager fm = getSupportFragmentManager();
// 开启事务
FragmentTransaction ft = fm.beginTransaction();
ft.add(R.id.main_head, new HeadFragment());
ft.add(R.id.main_body, new BodyFragment());
ft.commit();
}
}

高级的方法：项目名为Fragment

HeadFragment.java

package com.example.fragment;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Toast;

public class HeadFragment extends Fragment{
private ImageView iv;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view=inflater.inflate(R.layout.head, container, false);
iv=(ImageView) view.findViewById(R.id.head_iv);
iv.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
Toast.makeText(getActivity(), "Click head", 1000).show();
}
});
return view;
}
}

BodyFragment.java

package com.example.fragment;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class BodyFragment extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view=inflater.inflate(R.layout.body, container, false);
return view;
}
}


activity_main.xml

<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<fragment
android:id="@+id/main_head"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:name="com.example.fragment.HeadFragment"/>
<fragment
android:id="@+id/main_body"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.example.fragment.BodyFragment"/>

</LinearLayout>

MainActivity.java

package com.example.fragment;

import android.app.Activity;
import android.os.Bundle;
import android.widget.LinearLayout;

public class MainActivity extends Activity {
private LinearLayout mainHead,mainBody;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}