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import ui,console,time |
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from objc_util import on_main_thread |
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@on_main_thread |
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def get_top_view(navigation_view): |
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'''returns the top (aka visible) view from a navigation view''' |
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import ctypes |
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nc= navigation_view.objc_instance.navigationController() |
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tc=nc.topViewController() |
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v=tc.view() |
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return v.pyObject(restype=ctypes.py_object,argtypes=[]) |
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@on_main_thread |
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def get_bottom_view(navigation_view): |
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'''returns the top (aka visible) view from a navigation view''' |
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import ctypes |
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return navigation_view.objc_instance.navigationController().bottomViewController().view().pyObject(restype=ctypes.py_object,argtypes=[]) |
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@on_main_thread |
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def get_view_stack(navigation_view): |
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import ctypes |
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nc= navigation_view.objc_instance.navigationController() |
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view_list=[] |
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for vc in nc.viewControllers(): |
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view_list.append(vc.view().pyObject(restype=ctypes.py_object,argtypes=[])) |
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return view_list |
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@on_main_thread |
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def set_view_stack(navigation_view, view_list,animated=True): |
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'''sets view order. views must have been previously pushed. |
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e.g to make the top view the new root view: |
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set_view_stack(nv, [get_view_stack(nv)[-1]]) |
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''' |
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view_controllers=[] |
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if not hasattr(view_list,'__iter__'): |
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view_list=[view_list] |
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nc= navigation_view.objc_instance.navigationController() |
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nc_views=get_view_stack(navigation_view) |
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for i,v in enumerate(view_list): |
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try: |
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idx=nc_views.index(v) |
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view_controllers.append(nc.viewControllers()[idx]) |
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except ValueError: |
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raise ValueError('view at index {} not on stack ',i) |
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nc.setViewControllers_animated_(view_controllers,animated) |
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def pop_to_root(navigation_view,animated=True): |
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'''pops all views to return to the original root view''' |
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navigation_view.objc_instance.navigationController().popToRootViewControllerAnimated_(animated) |
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if __name__=='__main__': |
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class verboseview(ui.View): |
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def update(self): |
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try: |
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self.counter+=1 |
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except AttributeError: |
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self.counter=0 |
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console.hud_alert('{0.name} {0.counter}'.format(self)) |
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def layout(self): |
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console.hud_alert('{0.name} '.format(self)) |
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v=verboseview(name='Hello',frame=(0,0,222,222)) |
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#v.update_interval=0.5 |
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vw=verboseview(name='World',frame=(0,0,222,222)) |
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#vw.update_interval=0.3 |
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nv=ui.NavigationView(v) |
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nv.present('sheet') |
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nv.push_view(vw) |
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print(get_top_view(nv).name) |
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''' |
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import ui |
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from objc_util import * |
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from objc_hacks import swizzle |
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def willDismiss(_self,_sel): |
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pass |
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swizzle.swizzle(ObjCClass('SUINavigationView_PY3'), 'willDismiss', willDismiss, type_encoding='v@:') |
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v=ui.View() |
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nv=ui.NavigationView(v) |
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nv.present('panel') |
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''' |
