File Picker.py 文件源码

def __init__(self, root_node, allow_multi=False, async_mode=False):
        self.async_mode = async_mode
        self.allow_multi = allow_multi
        self.selected_entries = None
        self.table_view = ui.TableView()
        self.table_view.frame = (0, 0, 500, 500)
        self.table_view.data_source = self
        self.table_view.delegate = self
        self.table_view.flex = 'WH'
        self.table_view.allows_multiple_selection = True
        self.table_view.tint_color = 'gray'
        self.view = ui.View(frame=self.table_view.frame)
        self.view.add_subview(self.table_view)
        self.view.name = root_node.title
        self.busy_view = ui.View(frame=self.view.bounds, flex='WH', background_color=(0, 0, 0, 0.35))
        hud = ui.View(frame=(self.view.center.x - 50, self.view.center.y - 50, 100, 100))
        hud.background_color = (0, 0, 0, 0.7)
        hud.corner_radius = 8.0
        hud.flex = 'TLRB'
        spinner = ui.ActivityIndicator()
        spinner.style = ui.ACTIVITY_INDICATOR_STYLE_WHITE_LARGE
        spinner.center = (50, 50)
        spinner.start_animating()
        hud.add_subview(spinner)
        self.busy_view.add_subview(hud)
        self.busy_view.alpha = 0.0
        self.view.add_subview(self.busy_view)
        self.done_btn = ui.ButtonItem(title='Done', action=self.done_action)
        if self.allow_multi:
            self.view.right_button_items = [self.done_btn]
        self.done_btn.enabled = False
        self.root_node = root_node
        self.entries = []
        self.flat_entries = []
        if self.async_mode:
            self.set_busy(True)
            t = threading.Thread(target=self.expand_root)
            t.start()
        else:
            self.expand_root()