android的listview多选功能,Android ListView实现单选及多选等功能示例
本文實例講述了Android ListView實現單選及多選等功能的方法。分享給大家供大家參考，具體如下：
在項目中也遇到過給ListView的item添加選擇功能。比如一個網購APP，有個歷史瀏覽頁面，這個頁面現點擊item單選/多選及全選刪除功能。
當時也是通過在數據中添加一個是否選擇的字段來記錄item的狀態，然后根據這個字段有相應的position位置進行選擇狀態更改及刪除操作。
剛剛看了Android API Demos中17種ListView的實現方法，發現ListView自身就帶有我們所需要的單選，多選功能而且實現起來相當方便。
/**
* 單選或多選功能ListView
* @description：
* @author ldm
* @date 2016-4-21 上午10:44:37
*/
public class SingleChoiceList extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapter(this,
android.R.layout.simple_list_item_single_choice, GENRES));
final ListView listView = getListView();
listView.setItemsCanFocus(false);
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);//添加這一句話，就實現單選功能
//listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);//添加這一句話，就實現多選功能
}
private static final String[] GENRES = new String[] {
"Action", "Adventure", "Animation", "Children", "Comedy", "Documentary", "Drama",
"Foreign", "History", "Independent", "Romance", "Sci-Fi", "Television", "Thriller"
};
}
/**
* 長按多選，添加了選擇模式
* @description：
* @author ldm
* @date 2016-4-21 上午10:47:55
*/
public class ChoiceModeList extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ListView lv = getListView();
lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
lv.setMultiChoiceModeListener(new ModeCallback());
setListAdapter(new ArrayAdapter(this,
android.R.layout.simple_list_item_checked, mStrings));
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
getActionBar().setSubtitle("Long press to start selection");
}
private class ModeCallback implements ListView.MultiChoiceModeListener {
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.list_select_menu, menu);
mode.setTitle("Select Items");
setSubtitle(mode);
return true;
}
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return true;
}
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.share:
Toast.makeText(ChoiceModeList.this, "Shared " + getListView().getCheckedItemCount() +
" items", Toast.LENGTH_SHORT).show();
mode.finish();
break;
default:
Toast.makeText(ChoiceModeList.this, "Clicked " + item.getTitle(),
Toast.LENGTH_SHORT).show();
break;
}
return true;
}
public void onDestroyActionMode(ActionMode mode) {
}
public void onItemCheckedStateChanged(ActionMode mode,
int position, long id, boolean checked) {
setSubtitle(mode);
}
private void setSubtitle(ActionMode mode) {
final int checkedCount = getListView().getCheckedItemCount();
switch (checkedCount) {
case 0:
mode.setSubtitle(null);
break;
case 1:
mode.setSubtitle("One item selected");
break;
default:
mode.setSubtitle("" + checkedCount + " items selected");
break;
}
}
}
private String[] mStrings = Cheeses.sCheeseStrings;
}
當我們通過以上這些方法實現ListView選中之后，我們可以把對應的item位置記錄下來，就可以對相應地數據進行操作了
/**
* 帶懸浮提示框的ListView
*
* @description：
* @author ldm
* @date 2016-4-21 上午10:55:51
*/
public class List9 extends ListActivity implements ListView.OnScrollListener {
private final class RemoveWindow implements Runnable {
public void run() {
removeWindow();
}
}
private RemoveWindow mRemoveWindow = new RemoveWindow();
Handler mHandler = new Handler();
private WindowManager mWindowManager;
private TextView mDialogText;
private boolean mShowing;
private boolean mReady;
private char mPrevLetter = Character.MIN_VALUE;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
setListAdapter(new ArrayAdapter(this,
android.R.layout.simple_list_item_1, mStrings));
getListView().setOnScrollListener(this);
LayoutInflater inflate = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mDialogText = (TextView) inflate.inflate(R.layout.list_position, null);
mDialogText.setVisibility(View.INVISIBLE);
mHandler.post(new Runnable() {
public void run() {
mReady = true;
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_APPLICATION,
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
mWindowManager.addView(mDialogText, lp);
}
});
}
@Override
protected void onResume() {
super.onResume();
mReady = true;
}
@Override
protected void onPause() {
super.onPause();
removeWindow();
mReady = false;
}
@Override
protected void onDestroy() {
super.onDestroy();
mWindowManager.removeView(mDialogText);
mReady = false;
}
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
if (mReady) {
char firstLetter = mStrings[firstVisibleItem].charAt(0);
if (!mShowing && firstLetter != mPrevLetter) {
mShowing = true;
mDialogText.setVisibility(View.VISIBLE);
}
mDialogText.setText(((Character) firstLetter).toString());
mHandler.removeCallbacks(mRemoveWindow);
mHandler.postDelayed(mRemoveWindow, 3000);
mPrevLetter = firstLetter;
}
}
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
private void removeWindow() {
if (mShowing) {
mShowing = false;
mDialogText.setVisibility(View.INVISIBLE);
}
}
private String[] mStrings = new String[] { "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",
"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", "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", "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", "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", "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", "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", "Venaco", "Vendomois",
"Vieux Corse", "Vignotte", "Vulscombe", "Waimata Farmhouse Blue",
"Washed Rind Cheese (Australian)", "Waterloo", "Weichkaese",
"Wellington", "Wensleydale", "White Stilton",
"Zanetti Parmigiano Reggiano" };
}
希望本文所述對大家Android程序設計有所幫助。
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