ToastView.py 文件源码

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)