我们从Python开源项目中，提取了以下21个代码示例，用于说明如何使用ui.ALIGN_CENTER。
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 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 set_menu(self, menu_key, spec): menu_spec = spec[menu_key] # for v in self.menu.subviews: # self.menu.remove_subview(v) #top_y = 50 x_increment = self.menu.width/(len(menu_spec)+1) dim = 0.55*x_increment for (i, (title, func)) in enumerate(menu_spec): btn = ui.Button() btn.title = title btn.action = func btn.background_color = self.menu_color btn.tint_color = 'white' self.menu.add_subview(btn) btn.width = btn.height = dim btn.center = ((i+1)*x_increment, self.menu.height/4) btn.corner_radius = dim/2 # label = list(section.keys())[0] # if isinstance(section[label], list): # l = ui.Label(text=label, text_color='black', background_color=(1,1,1,0.5), alignment=ui.ALIGN_CENTER, frame=(0, top_y, self.button_width, self.button_height)) # #+self.button_gap)*(len(section[label])+1))) # self.menu.add_subview(l) # top_y += self.button_height + self.button_gap # for (title, action) in section[label]: # btn = self.menu_button(title, action, top_y) # self.menu.add_subview(btn) # btn.frame=(0, top_y, self.button_width, self.button_height) # top_y += self.button_height + self.button_gap # else: # btn = self.menu_button(label, section[label], top_y) # self.menu.add_subview(btn) # btn.frame=(0, top_y, self.button_width, self.button_height) # top_y += self.button_height + self.button_gap
def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) if self.name is not None: title_label = ui.Label(text=self.name, frame=(10, 0, 275, 25), alignment=ui.ALIGN_CENTER, font =('<system-bold>', 18)) self.add_subview(title_label)
def __init__(self, slider_name, convert, action, valuefmt, *args, **kwargs): super().__init__(*args, **kwargs) self._m = convert['m'] self._b = convert['b'] self._valuefmt = valuefmt self.changed = action self.name = slider_name SLIDER_WIDTH = 200 SLIDER_HEIGHT = 30 SLIDER_TITLE_OFFSET = 25 SLIDER_TITLE_WIDTH = 200 SLIDER_TITLE_HEIGHT = 25 SLIDER_VALUE_OFFSET = 10 SLIDER_VALUE_HEIGHT = 25 SLIDER_VALUE_WIDTH = 50 self.border_width = 0 self.border_color = 'black' self._slider = ui.Slider(frame=(0, SLIDER_TITLE_OFFSET, SLIDER_WIDTH, SLIDER_HEIGHT)) self._slider.continuous = False self._slider.value = 0.5 self._slider.action = self.update slider_title = ui.Label(frame=(0, 0, SLIDER_TITLE_WIDTH, SLIDER_TITLE_HEIGHT)) slider_title.text = slider_name slider_title.text_color = 'black' self._slider_valuelabel = ui.Label(frame=(SLIDER_WIDTH + SLIDER_VALUE_OFFSET, SLIDER_TITLE_OFFSET, SLIDER_VALUE_WIDTH, SLIDER_VALUE_HEIGHT)) self._slider_valuelabel.text = str(0.5) self._slider_valuelabel.border_width = 1 self._slider_valuelabel.border_color = 'black' self._slider_valuelabel.alignment = ui.ALIGN_CENTER self.add_subview(self._slider) self.add_subview(slider_title) self.add_subview(self._slider_valuelabel)
def __init__(self, initial_width, initial_height, *args, **kwargs): super().__init__(*args, **kwargs) self._initial_width = initial_width self._initial_height = initial_height self.frame = (10, 100, 275, 250) self.background_color = 'white' self.img_width = ui.TextField(frame=(10, 30, 100, 25), keyboard_type=ui.KEYBOARD_DECIMAL_PAD, text=str(initial_width), action=self.update_height) self.add_subview(self.img_width) width_label = ui.Label(frame=(10, 5, 150, 25), text='Image Width') self.add_subview(width_label) self.img_height = ui.TextField(frame=(150, 30, 100, 25), keyboard_type=ui.KEYBOARD_DECIMAL_PAD, text=str(initial_height), action=self.update_width) self.add_subview(self.img_height) height_label = ui.Label(frame=(150, 5, 150, 25), text='Image Height') self.add_subview(height_label) aspect_ratio = self._initial_width / self._initial_height self.aspect = ui.TextField(frame=(70, 100, 150, 25), text=str(aspect_ratio), keyboard_type=ui.KEYBOARD_DECIMAL_PAD, alignment=ui.ALIGN_CENTER, action=self.updatefrom_aspectratio) self.add_subview(self.aspect) aspect_label = ui.Label(frame=(70, 75, 150, 25), text='Aspect', alignment=ui.ALIGN_CENTER) self.add_subview(aspect_label) self.save_button = ui.Button(frame=(175, 150, 50, 25), title='Save', action=self.save) self.add_subview(self.save_button) self.cancel_button = ui.Button(frame=(30, 150, 50, 25), title='Cancel', action=self.cancel) self.add_subview(self.cancel_button)
def make_label(text, frame): label = ui.Label( ) label.text = str(text) label.frame = frame label.text_color = 'black' label.border_color = 'black' label.alignment = ui.ALIGN_CENTER label.border_width = 1 label.bring_to_front() return label
def create_label(title): global label_count label_count += 1 label_w = 175 label_h = 75 gap = 10 label_w_with_gap = label_w + gap label_h_with_gap = label_h + gap labels_per_line = math.floor((v.width-2*gap)/(label_w+gap)) left_margin = (v.width - labels_per_line*label_w_with_gap + gap)/2 line = math.floor(label_count/labels_per_line) column = label_count - line*labels_per_line l = ui.Label( text=title, background_color='grey', text_color='white', alignment=ui.ALIGN_CENTER, number_of_lines=0, frame=( left_margin+column * label_w_with_gap, gap+line * label_h_with_gap, label_w, label_h )) v.add_subview(l) return l
def tableview_cell_for_row(self, tableview, section, row): cell = ui.TableViewCell() cell.text_label.text = str(self.items[row]) cell.text_label.alignment = ui.ALIGN_CENTER return cell
def make_right_side_view(cls, right_frame): text_view = ui.TextView(frame=right_frame) text_view.alpha = cls.views_alpha text_view.alignment = ui.ALIGN_CENTER text_view.editable = False text_view.text = '\n' + '1234567890 ' * 50 return text_view
def make_status_view(cls, status_frame): text_view = ui.TextView(frame=status_frame) text_view.alpha = cls.views_alpha text_view.alignment = ui.ALIGN_CENTER text_view.editable = False text_view.text = "Status: let the game begin... It is white's turn to move" return text_view
def to_css_alignment(self): mapping = { ui.ALIGN_LEFT: 'left', ui.ALIGN_CENTER: 'center', ui.ALIGN_RIGHT: 'right', ui.ALIGN_JUSTIFIED: 'justify', ui.ALIGN_NATURAL: 'start' } return mapping[self.markup.alignment]
def make_labels(self, cell, text, pos): label = ui.Label() label.border_color = 'lightgrey' label.border_width = 0.5 if pos == 2: label.text = str(datetime.datetime.fromtimestamp(text)) else: label.text = str(text) label.frame = (pos*self.width/3,0,self.width/3,self.row_height) label.alignment = ui.ALIGN_CENTER cell.content_view.add_subview(label)
def parse_alignment(a): '''handle alignment attribute. TODO: handle all valid types''' if a=='left': return ui.ALIGN_LEFT elif a=='right': return ui.ALIGN_RIGHT elif a=='center': return ui.ALIGN_CENTER else: #fixme... handle all types. print 'unhandled alignment',a return ui.ALIGN_LEFT
def display_toast(view, help_text, width = 220, height = 110, show_duration=2, fade_duration=0.5, background_colour=(.42, .42, .42), text_colour= (.96, .96, .96), corner_radius=10): w, h = ui.get_screen_size() help_view = ui.View(frame=((w/2)-(width/2),(h/2)-height, width, height)) help_view.background_color = background_colour help_view.corner_radius = corner_radius label = ui.Label() label.text = help_text label.flex = 'H' label.width = help_view.width * 0.9 label.alignment = ui.ALIGN_CENTER label.x = (help_view.width / 2) - (label.width / 2) label.y = (help_view.height / 2) - (label.height / 2) label.number_of_lines = 3 label.text_color = text_colour help_view.add_subview(label) def animation_fade_in(): help_view.alpha = 1.0 def animation_fade_out(): help_view.alpha = 0.0 help_view.alpha = 0.0 view.add_subview(help_view) ui.animate(animation_fade_in, duration=fade_duration) time.sleep(show_duration+fade_duration) ui.animate(animation_fade_out, duration=fade_duration) time.sleep(fade_duration) view.remove_subview(help_view)
def main(): global main_view delegate = MetadataDelegate.new() main_view = ui.View(frame=(0, 0, 400, 400)) main_view.name = 'Barcode Scanner' session = AVCaptureSession.alloc().init() device = AVCaptureDevice.defaultDeviceWithMediaType_('vide') _input = AVCaptureDeviceInput.deviceInputWithDevice_error_(device, None) if _input: session.addInput_(_input) else: print('Failed to create input') return output = AVCaptureMetadataOutput.alloc().init() queue = ObjCInstance(dispatch_get_current_queue()) output.setMetadataObjectsDelegate_queue_(delegate, queue) session.addOutput_(output) output.setMetadataObjectTypes_(output.availableMetadataObjectTypes()) prev_layer = AVCaptureVideoPreviewLayer.layerWithSession_(session) prev_layer.frame = ObjCInstance(main_view).bounds() prev_layer.setVideoGravity_('AVLayerVideoGravityResizeAspectFill') ObjCInstance(main_view).layer().addSublayer_(prev_layer) label = ui.Label(frame=(0, 0, 400, 30), flex='W', name='label') label.background_color = (0, 0, 0, 0.5) label.text_color = 'white' label.text = 'Nothing scanned yet' label.alignment = ui.ALIGN_CENTER main_view.add_subview(label) session.startRunning() main_view.present('sheet') main_view.wait_modal() session.stopRunning() delegate.release() session.release() output.release() if found_codes: print 'All scanned codes:\n' + '\n'.join(found_codes)
def draw(self): square_size=min(self.width,self.height) N=self.N Nb=self.Nb dx=square_size*1.0/(N+2) dxb=N*dx/Nb h,s,v=self.current i0,j0,k0=(round(c*N) for c in self.current) k0=round(self.current[2]*Nb) #draw H/S grid for i in xrange(0,N): for j in xrange(0,N): ui.set_color(colorsys.hsv_to_rgb(i*1.0/N,j*1.0/N,v)) ui.set_blend_mode(ui.BLEND_NORMAL) ui.fill_rect(round(i*dx),round(j*dx),round(dx),round(dx)) #draw V slider for k in xrange(0,Nb): ui.set_color(colorsys.hsv_to_rgb(h,s,k*1./Nb)) ui.set_blend_mode(ui.BLEND_NORMAL) ui.fill_rect(round((N+1)*dx),round(k*dxb),round(dx),round(dxb+0.5)) #highlight selection if all([c>=0 for c in self.current]): ui.set_color(colorsys.hsv_to_rgb(h,s,1-0.5*(1-v))) p=ui.Path.rect(i0*dx,j0*dx,dx,dx) p.line_width=4 p.stroke() ui.set_color(colorsys.hsv_to_rgb(h,s,1-0.5*(1-v))) p=ui.Path.rect((N+1)*dx,k0*dxb,dx,dxb) p.line_width=4 p.stroke() #preview ui.set_color(colorsys.hsv_to_rgb(h,s,v)) ui.fill_rect(0,(N+1)*dx,6*dx,dx) r,g,b=colorsys.hsv_to_rgb(h,s,v) clip=lambda x:min(max(x,0),1) rp,gp,bp=colorsys.hsv_to_rgb(1-h,1,clip((0.5-v)*100)) ui.draw_string( ('{:02x}'*3).format(int(r*255),int(g*255),int(b*255)), (0,(N+1)*dx,6*dx,dx),alignment=ui.ALIGN_CENTER,color=(rp,gp,bp))
def draw(self): # redraw button def darken(color): return tuple([0.5*x for x in color]) #set up button size to fit. padding=10 textsize=ui.measure_string(string=self.title,max_width=0,font=self.font,alignment=ui.ALIGN_CENTER) #draw border ui.set_color(self.border_color) path = ui.Path.rounded_rect(0, 0, self.width, self.height,self.corner_radius) path.line_width=self.border_width path.stroke() #fill button, depending on touch state if self.touched: if self.doing_longtouch: ui.set_color('blue') else: ui.set_color('grey') else : ui.set_color(self.bg_color) path.fill() # fill corner darker, if has children if self.flow.subviews: corner = ui.Path() corner.move_to(self.width-1.5*self.corner_radius,0) corner.line_to(self.width,0) corner.line_to(self.width,1.5*self.corner_radius) corner.line_to(self.width-1.5*self.corner_radius,0) ui.set_color(darken(darken(self.bg_color))) corner.stroke() corner.fill() # draw title, center vertically, horiz rect=list(self.bounds) rect[1]=(rect[3]-textsize[1])/2 #vert center rect[2]=max(rect[2],textsize[0]+10) ui.draw_string(self.title, rect=tuple(rect), font=self.font, color=self.tint_color, alignment=ui.ALIGN_CENTER, line_break_mode=ui.LB_WORD_WRAP) if textsize[0]>self.bounds[2]: self.width=textsize[0]+10
def __init__(self, container, state): self._container = container self._touch_began_location = None self._initial_container_frame = None self._container_superview = ObjCInstance(container).superview() label = LayoutProxy(ui.Label()) label.font = ('<system>', 13.0) label.alignment = ui.ALIGN_CENTER label.text_color = get_theme_value('bar_title_color') label.touch_enabled = False self.add_subview(label) label.layout.align_left_with_superview.equal = 0 label.layout.align_right_with_superview.equal = 0 label.layout.align_center_y_with_superview.equal = 0 self.title_label = label button = LayoutProxy(ui.Button(title='x', tint_color=get_theme_value('tint_color'))) self.add_subview(button) button.layout.align_left_with_superview.equal = 0 button.layout.align_top_with_superview.equal = 0 button.layout.align_bottom_with_superview.equal = 0 button.layout.width.equal = _OVERLAY_BAR_HEIGHT self.close_button = button button = LayoutProxy(ui.Button(title='-', tint_color=get_theme_value('tint_color'))) self.add_subview(button) button.layout.align_right_with_superview.equal = 0 button.layout.align_top_with_superview.equal = 0 button.layout.align_bottom_with_superview.equal = 0 button.layout.width.equal = _OVERLAY_BAR_HEIGHT self.collapse_button = button separator = LayoutProxy(ui.View(background_color=get_theme_value('separator_color'))) self.add_subview(separator) separator.layout.height.equal = 1 separator.layout.align_left_with_superview.equal = 0 separator.layout.align_bottom_with_superview.equal = 0 separator.layout.align_right_with_superview.equal = 0 self.separator = separator self.update_appearance(state)
def __init__(self, **kwargs): super().__init__(**kwargs) if 'background_color' not in kwargs: self.background_color = 'white' if 'frame' not in kwargs: self.width = min(ui.get_window_size()[0] * 0.8, 700) self.height = ui.get_window_size()[1] * 0.8 self._tableview = ui.TableView() self._textfield = ui.TextField() self._help_label = ui.Label() self._datasource = None self._handlers = None self.shift_enter_enabled = True self.did_select_item_action = None tf = LayoutProxy(self._textfield) self.add_subview(tf) tf.layout.align_left_with_superview.equal = 8 tf.layout.align_top_with_superview.equal = 8 tf.layout.align_right_with_superview.equal = -8 tf.layout.height.equal = 31 tf.delegate = self tv = LayoutProxy(self._tableview) self.add_subview(tv) tv.layout.align_left_to(tf).equal = 0 tv.layout.align_right_to(tf).equal = 0 tv.layout.top_offset_to(tf).equal = 8 tv.allows_selection = True tv.allows_multiple_selection = False hl = LayoutProxy(self._help_label) self.add_subview(hl) hl.layout.align_left_to(tv).equal = 0 hl.layout.align_right_to(tv).equal = 0 hl.layout.top_offset_to(tv).equal = 8 hl.layout.align_bottom_with_superview.equal = -8 hl.layout.height.max = 66 hl.font = ('<system>', 13.0) hl.alignment = ui.ALIGN_CENTER hl.text_color = (0, 0, 0, 0.5) hl.number_of_lines = 2 if is_in_hardware_keyboard_mode: tf.view.begin_editing() self._register_key_event_handlers()
