[Android] 使用 FragmentPagerAdapter

開發工具：Android Studio 0.8.2

這邊使用官方的範例來介紹 FragmentPageAdapter 他是屬於 android.support.v4 中的一個接口類別，主要使用在 Fragment 上，官方範例圖片：

這邊呈現的是一個可以支援滑動切換的分頁。

FragmentPageAdapter 與 FragmentStatePagerAdapter 之間的最大差異在於，前者的 Fragment 視圖是一次性的載入到記憶體對系統負擔較大，而後者則否。

官方的範例已經將相關的類別整合在一個Class中，如果可以的話，當然是分開來使用比較好，一般來說流程也是跟使用fragment製造Tab效果大致相同

(1) 規劃主畫面

(2) 規劃分頁畫面

(3) 編寫分頁邏輯

(4) 編寫分頁與主頁的接口

(5) 編寫主畫面程式

demo程式(右鍵另開視窗下載)

官方範例程式碼：

FragmentPagerSupport.java ===============================================

package william.home.testfragment03;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.app.ListFragment;

import android.support.v4.view.ViewPager;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.ListView;

import android.widget.TextView;

/**

* Created by Hsu on 2014/8/12.

public class FragmentPagerSupport extends FragmentActivity {

static final int NUM_ITEMS = 10;

MyAdapter mAdapter;

ViewPager mPager;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.fragment_pager);

mAdapter = new MyAdapter(getSupportFragmentManager());

mPager = (ViewPager)findViewById(R.id.pager);

mPager.setAdapter(mAdapter);

// Watch for button clicks.

Button button = (Button)findViewById(R.id.goto_first);

button.setOnClickListener(new Button.OnClickListener() {

public void onClick(View v) {

mPager.setCurrentItem(0);

}

});

button = (Button)findViewById(R.id.goto_last);

button.setOnClickListener(new Button.OnClickListener() {

public void onClick(View v) {

mPager.setCurrentItem(NUM_ITEMS-1);

}

});

}

// 自訂 FragmentPagerAdapter 的接口類別

public static class MyAdapter extends FragmentPagerAdapter {

public MyAdapter(FragmentManager fm) {

super(fm);

}

@Override

public int getCount() {

return NUM_ITEMS;

}

@Override

public Fragment getItem(int position) {

return ArrayListFragment.newInstance(position);

}

// 主要用來呈現資料用的 Fragment

public static class ArrayListFragment extends ListFragment {

int mNum;

/**

* Create a new instance of CountingFragment, providing "num"

* as an argument.

static ArrayListFragment newInstance(int num) {

ArrayListFragment f = new ArrayListFragment();

// Supply num input as an argument.

Bundle args = new Bundle();

args.putInt("num", num);

f.setArguments(args);

return f;

}

/**

* When creating, retrieve this instance's number from its arguments.

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

mNum = getArguments() != null ? getArguments().getInt("num") : 1;

}

/**

* The Fragment's UI is just a simple text view showing its

* instance number.

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

// 將 fragment_pager_list.xml 注入成一個 View 返回

View v = inflater.inflate(R.layout.fragment_pager_list, container, false);

View tv = v.findViewById(R.id.text);

((TextView)tv).setText("Fragment #" + mNum);

return v;

}

// 當 Activity 被創建時，要做什麼事情

@Override

public void onActivityCreated(Bundle savedInstanceState) {

super.onActivityCreated(savedInstanceState);

// 簡單的使用 ArrayAdapter 帶入陣列型態的資料

setListAdapter(new ArrayAdapter<String>(getActivity(),

android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));

}

// 點擊 ListItem 時要做什麼事情

@Override

public void onListItemClick(ListView l, View v, int position, long id) {

Log.i("FragmentList", "Item clicked: " + id);

}

fragment_pager.xml ===============================================

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:padding="4dip"

android:gravity="center_horizontal"

android:layout_width="match_parent" android:layout_height="match_parent">

<android.support.v4.view.ViewPager

android:id="@+id/pager"

android:layout_width="match_parent"

android:layout_height="0px"

android:layout_weight="1">

</android.support.v4.view.ViewPager>

<LinearLayout android:orientation="horizontal"

android:gravity="center" android:measureWithLargestChild="true"

android:layout_width="match_parent" android:layout_height="wrap_content"

android:layout_weight="0">

<Button android:id="@+id/goto_first"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:text="@string/first">

</Button>

<Button android:id="@+id/goto_last"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:text="@string/last">

</Button>

</LinearLayout>

fragment_pager_list.xml ===============================================

<?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="@android:drawable/gallery_thumb">

<TextView android:id="@+id/text"

android:layout_width="match_parent" android:layout_height="wrap_content"

android:gravity="center_vertical|center_horizontal"

android:textAppearance="?android:attr/textAppearanceMedium"

android:text="@string/hello_world"/>

<!-- The frame layout is here since we will be showing either

the empty view or the list view. -->

<FrameLayout

android:layout_width="match_parent"

android:layout_height="0dip"

android:layout_weight="1" >

<!-- Here is the list. Since we are using a ListActivity, we

have to call it "@android:id/list" so ListActivity will

find it -->

<ListView android:id="@android:id/list"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:drawSelectorOnTop="false"/>

<TextView android:id="@android:id/empty"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:textAppearance="?android:attr/textAppearanceMedium"

android:text="No items."/>

</FrameLayout>

</LinearLayout>

String.xml ===============================================

<string name="app_name">TestFragment03</string>

<string name="hello_world">Hello World!!!!</string>

</resources>

AndroidManifest.xml ===============================================

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="william.home.testfragment03">

<application android:allowBackup="true"

android:label="@string/app_name"

android:icon="@drawable/ic_launcher"

android:theme="@style/AppTheme">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

Cheeses.java ===============================================

package william.home.testfragment03;

/**

* Created by Hsu on 2014/8/12.

public class Cheeses {

public static final String[] sCheeseStrings = {

"Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",

"Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale",

"Aisy Cendre", "Allgauer Emmentaler", "Alverca", "Ambert", "American Cheese",

"Ami du Chambertin", "Anejo Enchilado", "Anneau du Vic-Bilh", "Anthoriro", "Appenzell",

"Aragon", "Ardi Gasna", "Ardrahan", "Armenian String", "Aromes au Gene de Marc",

"Asadero", "Asiago", "Aubisque Pyrenees", "Autun", "Avaxtskyr", "Baby Swiss",

"Babybel", "Baguette Laonnaise", "Bakers", "Baladi", "Balaton", "Bandal", "Banon",

"Barry's Bay Cheddar", "Basing", "Basket Cheese", "Bath Cheese", "Bavarian Bergkase",

"Baylough", "Beaufort", "Beauvoorde", "Beenleigh Blue", "Beer Cheese", "Bel Paese",

"Bergader", "Bergere Bleue", "Berkswell", "Beyaz Peynir", "Bierkase", "Bishop Kennedy",

"Blarney", "Bleu d'Auvergne", "Bleu de Gex", "Bleu de Laqueuille",

"Bleu de Septmoncel", "Bleu Des Causses", "Blue", "Blue Castello", "Blue Rathgore",

"Blue Vein (Australian)", "Blue Vein Cheeses", "Bocconcini", "Bocconcini (Australian)",

"Boeren Leidenkaas", "Bonchester", "Bosworth", "Bougon", "Boule Du Roves",

"Boulette d'Avesnes", "Boursault", "Boursin", "Bouyssou", "Bra", "Braudostur",

"Breakfast Cheese", "Brebis du Lavort", "Brebis du Lochois", "Brebis du Puyfaucon",

"Bresse Bleu", "Brick", "Brie", "Brie de Meaux", "Brie de Melun", "Brillat-Savarin",

"Brin", "Brin d' Amour", "Brin d'Amour", "Brinza (Burduf Brinza)",

"Briquette de Brebis", "Briquette du Forez", "Broccio", "Broccio Demi-Affine",

"Brousse du Rove", "Bruder Basil", "Brusselae Kaas (Fromage de Bruxelles)", "Bryndza",

"Buchette d'Anjou", "Buffalo", "Burgos", "Butte", "Butterkase", "Button (Innes)",

"Buxton Blue", "Cabecou", "Caboc", "Cabrales", "Cachaille", "Caciocavallo", "Caciotta",

"Caerphilly", "Cairnsmore", "Calenzana", "Cambazola", "Camembert de Normandie",

"Canadian Cheddar", "Canestrato", "Cantal", "Caprice des Dieux", "Capricorn Goat",

"Capriole Banon", "Carre de l'Est", "Casciotta di Urbino", "Cashel Blue", "Castellano",

"Castelleno", "Castelmagno", "Castelo Branco", "Castigliano", "Cathelain",

"Celtic Promise", "Cendre d'Olivet", "Cerney", "Chabichou", "Chabichou du Poitou",

"Chabis de Gatine", "Chaource", "Charolais", "Chaumes", "Cheddar",

"Cheddar Clothbound", "Cheshire", "Chevres", "Chevrotin des Aravis", "Chontaleno",

"Civray", "Coeur de Camembert au Calvados", "Coeur de Chevre", "Colby", "Cold Pack",

"Comte", "Coolea", "Cooleney", "Coquetdale", "Corleggy", "Cornish Pepper",

"Cotherstone", "Cotija", "Cottage Cheese", "Cottage Cheese (Australian)",

"Cougar Gold", "Coulommiers", "Coverdale", "Crayeux de Roncq", "Cream Cheese",

"Cream Havarti", "Crema Agria", "Crema Mexicana", "Creme Fraiche", "Crescenza",

"Croghan", "Crottin de Chavignol", "Crottin du Chavignol", "Crowdie", "Crowley",

"Cuajada", "Curd", "Cure Nantais", "Curworthy", "Cwmtawe Pecorino",

"Cypress Grove Chevre", "Danablu (Danish Blue)", "Danbo", "Danish Fontina",

"Daralagjazsky", "Dauphin", "Delice des Fiouves", "Denhany Dorset Drum", "Derby",

"Dessertnyj Belyj", "Devon Blue", "Devon Garland", "Dolcelatte", "Doolin",

"Doppelrhamstufel", "Dorset Blue Vinney", "Double Gloucester", "Double Worcester",

"Dreux a la Feuille", "Dry Jack", "Duddleswell", "Dunbarra", "Dunlop", "Dunsyre Blue",

"Duroblando", "Durrus", "Dutch Mimolette (Commissiekaas)", "Edam", "Edelpilz",

"Emental Grand Cru", "Emlett", "Emmental", "Epoisses de Bourgogne", "Esbareich",

"Esrom", "Etorki", "Evansdale Farmhouse Brie", "Evora De L'Alentejo", "Exmoor Blue",

"Explorateur", "Feta", "Feta (Australian)", "Figue", "Filetta", "Fin-de-Siecle",

"Finlandia Swiss", "Finn", "Fiore Sardo", "Fleur du Maquis", "Flor de Guia",

"Flower Marie", "Folded", "Folded cheese with mint", "Fondant de Brebis",

"Fontainebleau", "Fontal", "Fontina Val d'Aosta", "Formaggio di capra", "Fougerus",

"Four Herb Gouda", "Fourme d' Ambert", "Fourme de Haute Loire", "Fourme de Montbrison",

"Fresh Jack", "Fresh Mozzarella", "Fresh Ricotta", "Fresh Truffles", "Fribourgeois",

"Friesekaas", "Friesian", "Friesla", "Frinault", "Fromage a Raclette", "Fromage Corse",

"Fromage de Montagne de Savoie", "Fromage Frais", "Fruit Cream Cheese",

"Frying Cheese", "Fynbo", "Gabriel", "Galette du Paludier", "Galette Lyonnaise",

"Galloway Goat's Milk Gems", "Gammelost", "Gaperon a l'Ail", "Garrotxa", "Gastanberra",

"Geitost", "Gippsland Blue", "Gjetost", "Gloucester", "Golden Cross", "Gorgonzola",

"Gornyaltajski", "Gospel Green", "Gouda", "Goutu", "Gowrie", "Grabetto", "Graddost",

"Grafton Village Cheddar", "Grana", "Grana Padano", "Grand Vatel",

"Grataron d' Areches", "Gratte-Paille", "Graviera", "Greuilh", "Greve",

"Gris de Lille", "Gruyere", "Gubbeen", "Guerbigny", "Halloumi",

"Halloumy (Australian)", "Haloumi-Style Cheese", "Harbourne Blue", "Havarti",

"Heidi Gruyere", "Hereford Hop", "Herrgardsost", "Herriot Farmhouse", "Herve",

"Hipi Iti", "Hubbardston Blue Cow", "Hushallsost", "Iberico", "Idaho Goatster",

"Idiazabal", "Il Boschetto al Tartufo", "Ile d'Yeu", "Isle of Mull", "Jarlsberg",

"Jermi Tortes", "Jibneh Arabieh", "Jindi Brie", "Jubilee Blue", "Juustoleipa",

"Kadchgall", "Kaseri", "Kashta", "Kefalotyri", "Kenafa", "Kernhem", "Kervella Affine",

"Kikorangi", "King Island Cape Wickham Brie", "King River Gold", "Klosterkaese",

"Knockalara", "Kugelkase", "L'Aveyronnais", "L'Ecir de l'Aubrac", "La Taupiniere",

"La Vache Qui Rit", "Laguiole", "Lairobell", "Lajta", "Lanark Blue", "Lancashire",

"Langres", "Lappi", "Laruns", "Lavistown", "Le Brin", "Le Fium Orbo", "Le Lacandou",

"Le Roule", "Leafield", "Lebbene", "Leerdammer", "Leicester", "Leyden", "Limburger",

"Lincolnshire Poacher", "Lingot Saint Bousquet d'Orb", "Liptauer", "Little Rydings",

"Livarot", "Llanboidy", "Llanglofan Farmhouse", "Loch Arthur Farmhouse",

"Loddiswell Avondale", "Longhorn", "Lou Palou", "Lou Pevre", "Lyonnais", "Maasdam",

"Macconais", "Mahoe Aged Gouda", "Mahon", "Malvern", "Mamirolle", "Manchego",

"Manouri", "Manur", "Marble Cheddar", "Marbled Cheeses", "Maredsous", "Margotin",

"Maribo", "Maroilles", "Mascares", "Mascarpone", "Mascarpone (Australian)",

"Mascarpone Torta", "Matocq", "Maytag Blue", "Meira", "Menallack Farmhouse",

"Menonita", "Meredith Blue", "Mesost", "Metton (Cancoillotte)", "Meyer Vintage Gouda",

"Mihalic Peynir", "Milleens", "Mimolette", "Mine-Gabhar", "Mini Baby Bells", "Mixte",

"Molbo", "Monastery Cheeses", "Mondseer", "Mont D'or Lyonnais", "Montasio",

"Monterey Jack", "Monterey Jack Dry", "Morbier", "Morbier Cru de Montagne",

"Mothais a la Feuille", "Mozzarella", "Mozzarella (Australian)",

"Mozzarella di Bufala", "Mozzarella Fresh, in water", "Mozzarella Rolls", "Munster",

"Murol", "Mycella", "Myzithra", "Naboulsi", "Nantais", "Neufchatel",

"Neufchatel (Australian)", "Niolo", "Nokkelost", "Northumberland", "Oaxaca",

"Olde York", "Olivet au Foin", "Olivet Bleu", "Olivet Cendre",

"Orkney Extra Mature Cheddar", "Orla", "Oschtjepka", "Ossau Fermier", "Ossau-Iraty",

"Oszczypek", "Oxford Blue", "P'tit Berrichon", "Palet de Babligny", "Paneer", "Panela",

"Pannerone", "Pant ys Gawn", "Parmesan (Parmigiano)", "Parmigiano Reggiano",

"Pas de l'Escalette", "Passendale", "Pasteurized Processed", "Pate de Fromage",

"Patefine Fort", "Pave d'Affinois", "Pave d'Auge", "Pave de Chirac", "Pave du Berry",

"Pecorino", "Pecorino in Walnut Leaves", "Pecorino Romano", "Peekskill Pyramid",

"Pelardon des Cevennes", "Pelardon des Corbieres", "Penamellera", "Penbryn",

"Pencarreg", "Perail de Brebis", "Petit Morin", "Petit Pardou", "Petit-Suisse",

"Picodon de Chevre", "Picos de Europa", "Piora", "Pithtviers au Foin",

"Plateau de Herve", "Plymouth Cheese", "Podhalanski", "Poivre d'Ane", "Polkolbin",

"Pont l'Eveque", "Port Nicholson", "Port-Salut", "Postel", "Pouligny-Saint-Pierre",

"Pourly", "Prastost", "Pressato", "Prince-Jean", "Processed Cheddar", "Provolone",

"Provolone (Australian)", "Pyengana Cheddar", "Pyramide", "Quark",

"Quark (Australian)", "Quartirolo Lombardo", "Quatre-Vents", "Quercy Petit",

"Queso Blanco", "Queso Blanco con Frutas --Pina y Mango", "Queso de Murcia",

"Queso del Montsec", "Queso del Tietar", "Queso Fresco", "Queso Fresco (Adobera)",

"Queso Iberico", "Queso Jalapeno", "Queso Majorero", "Queso Media Luna",

"Queso Para Frier", "Queso Quesadilla", "Rabacal", "Raclette", "Ragusano", "Raschera",

"Reblochon", "Red Leicester", "Regal de la Dombes", "Reggianito", "Remedou",

"Requeson", "Richelieu", "Ricotta", "Ricotta (Australian)", "Ricotta Salata", "Ridder",

"Rigotte", "Rocamadour", "Rollot", "Romano", "Romans Part Dieu", "Roncal", "Roquefort",

"Roule", "Rouleau De Beaulieu", "Royalp Tilsit", "Rubens", "Rustinu", "Saaland Pfarr",

"Saanenkaese", "Saga", "Sage Derby", "Sainte Maure", "Saint-Marcellin",

"Saint-Nectaire", "Saint-Paulin", "Salers", "Samso", "San Simon", "Sancerre",

"Sap Sago", "Sardo", "Sardo Egyptian", "Sbrinz", "Scamorza", "Schabzieger", "Schloss",

"Selles sur Cher", "Selva", "Serat", "Seriously Strong Cheddar", "Serra da Estrela",

"Sharpam", "Shelburne Cheddar", "Shropshire Blue", "Siraz", "Sirene", "Smoked Gouda",

"Somerset Brie", "Sonoma Jack", "Sottocenare al Tartufo", "Soumaintrain",

"Sourire Lozerien", "Spenwood", "Sraffordshire Organic", "St. Agur Blue Cheese",

"Stilton", "Stinking Bishop", "String", "Sussex Slipcote", "Sveciaost", "Swaledale",

"Sweet Style Swiss", "Swiss", "Syrian (Armenian String)", "Tala", "Taleggio", "Tamie",

"Tasmania Highland Chevre Log", "Taupiniere", "Teifi", "Telemea", "Testouri",

"Tete de Moine", "Tetilla", "Texas Goat Cheese", "Tibet", "Tillamook Cheddar",

"Tilsit", "Timboon Brie", "Toma", "Tomme Brulee", "Tomme d'Abondance",

"Tomme de Chevre", "Tomme de Romans", "Tomme de Savoie", "Tomme des Chouans", "Tommes",

"Torta del Casar", "Toscanello", "Touree de L'Aubier", "Tourmalet",

"Trappe (Veritable)", "Trois Cornes De Vendee", "Tronchon", "Trou du Cru", "Truffe",

"Tupi", "Turunmaa", "Tymsboro", "Tyn Grug", "Tyning", "Ubriaco", "Ulloa",

"Vacherin-Fribourgeois", "Valencay", "Vasterbottenost", "Venaco", "Vendomois",

"Vieux Corse", "Vignotte", "Vulscombe", "Waimata Farmhouse Blue",

"Washed Rind Cheese (Australian)", "Waterloo", "Weichkaese", "Wellington",

"Wensleydale", "White Stilton", "Whitestone Farmhouse", "Wigmore", "Woodside Cabecou",

"Xanadu", "Xynotyro", "Yarg Cornish", "Yarra Valley Pyramid", "Yorkshire Blue",

"Zamorano", "Zanetti Grana Padano", "Zanetti Parmigiano Reggiano"

};

}