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ListView + 長按選單

ListView + 長按選單. 建國科技大學 資管系 饒瑞佶 2012/4. 長按選單. 與建立 menu 的方式相似 加入 onCreateContextMenu 和 onContextItemSelected( 選單則是需要 onCreateOptionsMenu 與 onOptionsItemSelected) 在 oncreate 內註冊 Listview 在 onCreate() 時加入 registerForContextMenu() 方法 registerForContextMenu(ListView)

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ListView + 長按選單

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  1. ListView + 長按選單 建國科技大學 資管系 饒瑞佶 2012/4

  2. 長按選單 • 與建立menu的方式相似 • 加入onCreateContextMenu和onContextItemSelected(選單則是需要onCreateOptionsMenu與onOptionsItemSelected) • 在oncreate內註冊Listview • 在onCreate()時加入registerForContextMenu()方法 • registerForContextMenu(ListView) • onContextItemSelected() 裡加入 AdapterContextMenuInfo 來取得使用者點選的項目 AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); //取得選取資訊 switch(item.getItemId()) { case MENU_BUTTON_1: break; case MENU_BUTTON_2: break; }

  3. onCreateContextMenu menu.setHeaderTitle("要如何處理這個項目?");//設定長按選單的表頭 menu.add(0, MENU_ABOUT, 0, "修改"); menu.add(0, MENU_QUIT, 0, "刪除");

  4. onContextItemSelected AdapterContextMenuInfo info = (AdapterContextMenuInfo)item.getMenuInfo();//取得Listview選取資訊 switch(item.getItemId()) { case MENU_ABOUT: break; case MENU_QUIT: break; }

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