Android平板电脑开发— — —碎片

碎片是一种可以嵌入在活动中的UI片段，它能让程序更加合理与充分地使用大屏幕的空间，碎片通常都是在平板电脑开发中才会使用

简单实例

<?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">

    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Button"        android:layout_gravity="center"/>

</LinearLayout>

package com.example.fragmenttest;

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;

/** * Created by Administrator on 2016/3/2. */public class LeftFragment extends Fragment {

    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.left_fragment,container,false);        return view;    }}

右碎片布局

<?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"    android:background="#00ff00">

    <TextView        android:id="@+id/text_view"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="This is a text"        android:textSize="20sp"        android:layout_gravity="center"/>

</LinearLayout>

package com.example.fragmenttest;

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;

/** * Created by Administrator on 2016/3/2. */public class RightFragment extends Fragment {

    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.right_fragment,container);        return view;    }}

主界面

<?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" >

    <fragment        android:id="@+id/left_fragment"        android:name="com.example.fragmenttest.LeftFragment"        android:layout_width="0dp"        android:layout_height="match_parent"        android:layout_weight="1"/>

    <fragment        android:id="@+id/right_fragment"        android:name="com.example.fragmenttest.RightFragment"        android:layout_width="0dp"        android:layout_height="match_parent"        android:layout_weight="1"/>

</LinearLayout>

package com.example.fragmenttest;

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);    }}