我正在使用自定义演示控制器来制作与UIAlertView类似的内容。我希望它在键盘显示时向上移动。在UIKeyboardWillShowNotification处理程序中，我抓住新的键盘框架，将其存储在属性中，然后调用：
self.presentedView.frame = [wself frameOfPresentedViewInContainerView];
在-frameOfPresentedViewInContainerView的实现中，我考虑了当前的键盘高度。
这很有效，但直接修改self.presentedView的框架感觉有点脏。我尝试使用setNeedsLayout和layoutIfNeeded的各种排列在容器视图上触发布局，但除了直接设置其框架之外，没有任何原因导致呈现的视图移动。
有没有更好的方法来做到这一点，而不仅仅是自己改变框架？
答案 0 :(得分：1)
您需要更新所提供VC的my production.ini file
[app:main]
use = egg:annuaireldap#main
pyramid.includes = pyramid_beaker
pyramid_jinja2
session.key = annuaireldap
session.secret = iuyryoiuiytghvfs-tifrsztft
session.cookie_on_exception = true
session.type = memory
my views.py
@view_config(route_name="Menu", renderer='templates/menu.jinja2', request_method='GET')
def menu(request):
bootstrap_css_url = request.static_url('annuaireldap:static/bootstrap.min.css')
bootstrap_js_url = request.static_url('annuaireldap:static/bootstrap.min.js')
jquery_js_url = request.static_url('annuaireldap:static/jquery.min.js')
custom_css_url = request.static_url('annuaireldap:static/custom_css.css')
to_rend = {'bootstrap_css':bootstrap_css_url,'bootstrap_js':bootstrap_js_url,'jquery_js':jquery_js_url,'custom_css':custom_css_url}
to_rend.update({'Menu_1':request.route_url('addClientPersonne'),
'Menu_2':request.route_url('addClientEntreprise'),
'Menu_3':request.route_url('SeeAll')})
return to_rend
@view_config(route_name='SeeAll', renderer='templates/menu.jinja2', request_method=('GET', 'POST'))
def seeall(request):
return {}
@view_config(route_name='login', renderer='templates/login.jinja2',
request_method=('GET', 'POST'))
def login(request):
bootstrap_css_url = request.static_url('annuaireldap:static/bootstrap.min.css')
bootstrap_js_url = request.static_url('annuaireldap:static/bootstrap.min.js')
jquery_js_url = request.static_url('annuaireldap:static/jquery.min.js')
custom_css_url = request.static_url('annuaireldap:static/custom_css.css')
settings = request.registry.settings
server_uri = settings['server_uri']
rendered_form = None
base_dn_user = settings['base_dn_user']
cl = Credentials().bind(request=request)
se_connecter = deform.form.Button(name='se_connecter',
title='se connecter')
form = deform.form.Form(cl, buttons=(se_connecter,))
url_redirect = request.route_url('login')
session = request.session
session.save()
if authenticated_userid(request):
url_redirect = request.route_url("Menu")
resp = HTTPFound(location=url_redirect)
return request.response.merge_cookies(resp)
if request.method == 'POST':
if 'se_connecter' in request.POST:
try:
deserialized = form.validate(request.POST.items())
username = deserialized['username']
password = deserialized['password']
server = Server(server_uri)
user_dn = 'uid=%s,%s'%(username, base_dn_user)
user_dn = 'cn=admin,dc=splynx,dc=lan'
password = '1235789'
conn = Connection(server, user=user_dn, password=password)
if conn.bind():
session[username] = ['agent']
remember(request, username)
url_redirect = request.route_url('Menu')
resp = HTTPFound(location=url_redirect)
return request.response.merge_cookies(resp)
except ValidationFailure as e:
rendered_form = e.render()
else:
rendered_form = form.render()
return {'bootstrap_css':bootstrap_css_url,
'bootstrap_js':bootstrap_js_url,
'jquery_js':jquery_js_url,
'rendered_form':rendered_form,
'custom_css':custom_css_url}
@view_config(route_name='addClientPersonne', permission='add_client',
request_method=('GET', 'POST'), renderer='templates/addPersonne.jinja2')
def addClientPersonne(request):
bootstrap_css_url = request.static_url('annuaireldap:static/bootstrap.min.css')
bootstrap_js_url = request.static_url('annuaireldap:static/bootstrap.min.js')
jquery_js_url = request.static_url('annuaireldap:static/jquery.min.js')
custom_css_url = request.static_url('annuaireldap:static/custom_css.css')
rendered_form = None
settings = request.registry.settings
cl = ClientPersonne().bind(request=request)
ajouter = deform.form.Button(name='Ajouter',
title='Ajouter')
form = deform.form.Form(cl, buttons=(ajouter,))
request.session.save()
if request.method == 'POST':
if 'Ajouter' in request.POST:
try:
server_uri = settings['server_uri']
server = Server(server_uri)
deserialized = form.validate(request.POST.items())
nom = deserialized['nom']
prenom = deserialized['prenom']
telephone = deserialized['telephone']
description = deserialized['description']
description = "" if description == colander.null else description
creator_dn = settings['creator_dn']
creator_pwd = settings['creator_pwd']
conn = Connection(server, user=creator_dn, password=creator_pwd)
base_clients_personnes = settings['base_clients_personnes']
new_user_dn = 'uid=%s,%s'%(get_token(14), base_clients_personnes)
if conn.bind():
attributes = {'telephoneNumber':telephone,
'sn':nom,
'cn':prenom}
if description:
attributes['description'] = description
conn.add(new_user_dn, ['person', 'uidObject'], attributes)
conn.unbind()
url_redirect = request.route_url('Menu')
resp = HTTPFound(location=url_redirect)
return request.response.merge_cookies(resp)
except ValidationFailure as e:
rendered_form = e.render()
except Exception as e:
rendered_form = form.render()
else:
rendered_form = form.render()
return {'bootstrap_css':bootstrap_css_url,
'bootstrap_js':bootstrap_js_url,
'jquery_js':jquery_js_url,
'rendered_form':rendered_form,
'custom_css':custom_css_url}
my root factory
class CustomResourceFactory():
__acl__ = [
(Allow, 'agent', {'add_client', 'modify_client', 'view_client', 'delete_client'}),
DENY_ALL
]
def __init__(self, request):
print "concombre"
pass
。
演示控制器不知道在演示结束后如何以及何时所呈现的VC的布局会发生变化。它只知道它的大小和执行转换所需的位置。
但是表示控制器有一个很好的委托方法，它继承自preferredContentSize：UIContentContainer
所以你应该做的是：
preferredContentSizeDidChange(forChildContentContainer container: UIContentContainer)
preferredContentSize属性的布局传递