我们从Python开源项目中，提取了以下10个代码示例，用于说明如何使用ui.ListDataSource()。
def __init__(self, path='/'): tv = ui.TableView() tv.frame = self.bounds tv.flex = 'WH' ds = ui.ListDataSource([]) ds.action = self.item_selected tv.data_source = ds tv.delegate = ds self.tableview = tv self.add_subview(self.tableview) self.name = 'Dropbox' label = ui.Label(frame=self.bounds) label.flex = 'WH' label.background_color = (1, 1, 1, 0.95) label.text = 'Loading...' label.touch_enabled = True label.alignment = ui.ALIGN_CENTER self.path = path self.add_subview(label) self.status_label = label self.canceled = False
def load(self): self.app.activity_indicator.start() try: self.categories_dict = self.app.repo.get_categories() categories_listdatasource = ui.ListDataSource( {'title': category_name, 'accessory_type': 'disclosure_indicator'} for category_name in sorted(self.categories_dict.keys()) ) categories_listdatasource.action = self.category_item_tapped categories_listdatasource.delete_enabled = False self.view.data_source = categories_listdatasource self.view.delegate = categories_listdatasource self.view.reload() except Exception as e: console.hud_alert('Failed to load Categories', 'error', 1.0) finally: self.app.activity_indicator.stop()
def bt_picture_action(self, sender): lst = ui.ListDataSource([{'title':'none','accessory_type':'none'}, {'title':'checkmark','accessory_type':'checkmark'}, {'title':'detail_button','accessory_type':'detail_button'}, {'title':'detail_disclosure_button','accessory_type':'detail_disclosure_button'}, {'title':'disclosure_indicator','accessory_type':'disclosure_indicator'}, {'title':'image24 and checkmark','image':'ionicons-images-24','accessory_type':'checkmark'}, {'title':'image32','image':'ionicons-alert-32'}, {'title':'image256','image':'ionicons-alert-circled-256'}, {'title':'frog','image':'Frog_Face'}, {'title':'OwnImage','image':'Image/OwnImage.png'}]) tv1 = self.view['tableview1'] tv1.data_source = tv1.delegate = lst tv1.data_source.delete_enabled = tv1.editing = False lst.action = self.tv1_action tv1.reload_data()
def open_finder(self,sender): # expand out a view/dialog from sender root=self.find_root() overlay=ui.Button(frame=(0,0)+tuple(root.frame)[2:],bg_color=(0,0,0,0.25),name='overlay') dialog=ui.View(frame=sender.frame,bg_color='white',name='dialog') self.tbl=ui.TableView() self.tbl.width=dialog.width self.tbl.height=dialog.height self.listsource=ui.ListDataSource(items=[]) self.tbl.data_source=self.listsource self.tbl.delegate=self.listsource self.listsource.action=self.stop_populating self.tbl.flex='wh' dialog.add_subview(self.tbl) overlay.add_subview(dialog) overlay.action=self.stop_populating root.add_subview(overlay) self.dialog=dialog def ani(): dialog.x,dialog.y=ui.convert_point((self.textfield.x,self.textfield.y+self.textfield.height),self,root) dialog.width=self.textfield.width dialog.height=min(400,root.height-ui.convert_point((0,dialog.y),self,root)[1]) ui.delay(self.start_populating,0.16) ui.animate(ani,0.15)
def init_size(self): # initialize with correct size when landscape orientation = ui.WebView(frame=(0,0,100,200)).eval_js('window.orientation') if orientation in (-90, 90): self.frame = (0, 0, self.height, self.width) def did_load(self): self.init_buttons() self.init_webbrowser() self.init_addressbar() self.init_size() self.flex = 'WH' self.bookmarks = self.load_bookmarks() self.history = self.load_history() self.addressbar_is_editing = False self.webpage_has_loaded = False self.favourite_images = {True :ui.Image.named('ionicons-ios7-star-32'), False:ui.Image.named('ionicons-ios7-star-outline-32')} def save_history(self, filename=filename_history): with open(filename, 'w') as f: url = self.get_url() if url in self.history: self.history.remove(url) self.history.append(url) f.seek(0) pickle.dump(self.history, f) def clear_history(self, sender, filename=filename_history): with open(filename, 'w') as f: self.history = [] f.seek(0) pickle.dump(self.history, f) sender.superview.superview['history'].data_source.items = self.history sender.superview.superview['history'].reload() def save_bookmark(self, filename=filename_bookmarks): with open(filename, 'w') as f: url = self.get_url() title = self.get_title() or self.parse_url(url) self.bookmarks[title] = url f.seek(0) json.dump(self.bookmarks, f, indent=4) self['controlpanel']['favourite'].image = self.favourite_images[True] def remove_bookmark(self, title=None, filename=filename_bookmarks): with open(filename, 'w') as f: title = title or self.get_title() del self.bookmarks[title] f.seek(0) json.dump(self.bookmarks, f, indent=4) self['controlpanel']['favourite'].image = self.favourite_images[False] def popup_menu(self): popup = ui.View(name='menu', frame=(0, 0, 320, 500)) toolbar = ui.View(frame=(-5, 0, 330, 100), name='toolbar') toolbar.border_width = 0.5 toolbar.border_color = '#B2B2B2' label = ui.Label() label.text = 'Bookmarks' label.alignment = ui.ALIGN_CENTER label.frame = (0, 0, 320, 50) label.name = 'title' segment_ctrl = ui.SegmentedControl(name='segctrl') segment_ctrl.segments = ['Bookmarks', 'History'] segment_ctrl.width = 170 segment_ctrl.center = popup.center segment_ctrl.y = label.height segment_ctrl.selected_index = 0 segment_ctrl.action = self.bookmarks_or_history button = ui.Button() button.frame = (segment_ctrl.x*3.5, segment_ctrl.y, 60, 30) button.font = ('<system>', 15) button.title= 'Clear' button.name = 'clear' button.action = self.clear_history button.hidden = True toolbar.add_subview(label) toolbar.add_subview(segment_ctrl) toolbar.add_subview(button) popup.add_subview(toolbar) data_source = ui.ListDataSource(sorted(self.bookmarks.keys())) popup.add_subview(self.list_bookmarks_and_history(data_source, width=320,height=toolbar.superview.height-toolbar.height, y=toolbar.height, name='bookmarks')) x, y = self['controlpanel']['bookmarks'].center popup.present('popover', popover_location=(x, y), hide_title_bar=True) def bookmarks_or_history(self, sender): toolbar = sender.superview if sender.selected_index == 0: toolbar['clear'].hidden = True toolbar['title'].text = 'Bookmarks' data_source = ui.ListDataSource(sorted(self.bookmarks.keys())) tv = self.list_bookmarks_and_history(data_source, width=320, height=toolbar.superview.height-toolbar.height, y=toolbar.height, name='bookmarks') toolbar.superview.remove_subview(toolbar.superview['history']) else: toolbar['clear'].hidden = False toolbar['title'].text = 'History' data_source = ui.ListDataSource(self.history[::-1]) tv = self.list_bookmarks_and_history(data_source, width=320, height=toolbar.superview.height-toolbar.height, y=toolbar.height, name='history') toolbar.superview['bookmarks'].hidden=True toolbar.superview.remove_subview(toolbar.superview['bookmarks']) sender.superview.superview.add_subview(tv) def list_bookmarks_and_history(self, data_source, **kwargs): tv = ui.TableView() tv.data_source = data_source tv.delegate = self for k, v in kwargs.items(): setattr(tv, k, v) return tv def show_more_menu(self): popup = ui.TableView() popup.width = 250 popup.height = 500 popup.name = 'More' popup.data_source = popup.delegate = self button = self['controlpanel']['more'] popup.present('popover', popover_location=(button.x, button.y+button.height)) def button_tapped(self, sender): if sender.name == 'favourite': if self.get_url() in self.bookmarks.values(): self.remove_bookmark() else: self.save_bookmark() elif sender.name == 'bookmarks': self.popup_menu() elif sender.name == 'more': self.show_more_menu() else: eval("self['webview'].{}()".format(sender.name)) def tableview_number_of_rows(self, tableview, section): if tableview.name == 'Bookmarks': return len(self.bookmarks) elif tableview.name == 'More': return 1 def tableview_cell_for_row(self, tableview, section, row): if tableview.name == 'Bookmarks': cell = ui.TableViewCell() cell.text_label.text = sorted(self.bookmarks.keys())[row] cell.image_view.image = ui.Image.named('ionicons-ios7-bookmarks-outline-32') cell.image_view.tint_color = '#66CCFF' return cell elif tableview.name == 'More': cell = ui.TableViewCell() cell.text_label.text = 'Settings' cell.image_view.image = ui.Image.named('ionicons-wrench-32') return cell @ui.in_background def tableview_did_select(self, tableview, section, row): if tableview.name == 'bookmarks': url = self.bookmarks[sorted(self.bookmarks.keys())[row]] self.load_url(url) tableview.superview.close() elif tableview.name == 'history': url = tableview.data_source.items[row] tableview.superview.close() self.load_url(url) elif tableview.name == 'More': tableview.close() console.hud_alert('No settings yet...', 'error', 1) def tableview_can_delete(self, tableview, section, row): return True def tableview_delete(self, tableview, section, row): item = sorted(self.bookmarks.keys())[row] self.remove_bookmark(item) tableview.reload() def textfield_did_begin_editing(self, textfield): self.addressbar_is_editing = True self.set_url() self['controlpanel']['reload'].hidden = True def textfield_did_end_editing(self, textfield): self.addressbar_is_editing = False self['controlpanel']['reload'].hidden = False self.set_url() def textfield_should_return(self, textfield): url = self['controlpanel']['addressbar'].text self.load_url(url) textfield.end_editing() return True def webview_did_start_load(self, webview): self.webpage_has_loaded = False def webview_did_finish_load(self, webview): if not self.addressbar_is_editing: self.set_url() self.webpage_has_loaded = True page_is_bookmarked = unicode(self.get_url()) in self.bookmarks.values() self['controlpanel']['favourite'].image = self.favourite_images[page_is_bookmarked] self.save_history()
def __init__(self, wikis): addbtn = ui.ButtonItem(image=ui.Image.named('iob:ios7_plus_empty_32'), action=self.add) # self.editbtn so it can be used in WikiList.edit self.editbtn = ui.ButtonItem(title='Edit', action=self.edit) items = None # If save file exists use it if os.path.isfile(os.path.expanduser('~/.mwsave.dat')): s = shelve.open(os.path.expanduser('~/.mwsave')) try: wikis = s['wikis'] except KeyError: pass s.close() self.tv = ui.TableView(name='Wikis') self.nv = ui.NavigationView(self.tv) self.tv.delegate = TableViewDelegate(wikis) items = [] # Create data source from dictionary of wikis for wiki in wikis: items.append({'title': wiki, 'accessory_type': 'detail_disclosure_button'}) self.tv.data_source = ui.ListDataSource(items) self.tv.data_source.move_enabled = True self.tv.data_source.edit_action = self.removeFromWikis self.tv.right_button_items = [addbtn] self.tv.left_button_items = [self.editbtn] self.nv.present('fullscreen', hide_title_bar=True) # Wait until the view closes to save app data self.nv.wait_modal() self.save()
def __init__(self, items=None): ui.ListDataSource.__init__(self, items)
def bt_dir_action(self, sender): dir_items = os.listdir(os.getcwd()) tv1 = self.view['tableview1'] tv1.data_source = tv1.delegate = ui.ListDataSource(dir_items) tv1.data_source.delete_enabled = tv1.editing = False tv1.reload_data()
def bt_empty_action(self, sender): lst = ui.ListDataSource([]) tv1 = self.view['tableview1'] tv1.data_source = tv1.delegate = ui.ListDataSource([]) tv1.data_source.delete_enabled = tv1.editing = False tv1.reload_data()
