navigation

问题 I'm currently developing an application that will launch a navigation intent. I know that this isn't an official API, but it works perfectly the way I want it to. I allow the user to select driving, walking, and bus navigation to a location. The intent to launch directly into Google Maps Navigation looks like this: google.navigation:ll= + a latitude and longitude, then + &mode= then your mode of transportation. For example, to navigate using walking directions to a certain area: google

问题 I have some static pages in a navigation menu. I want to add a class like "current" to the item which is currently displaying. The way I am doing so is to add tons of helper methods (each for one item) to check the controller and action. def current_root_class 'class="current"' if controller_name == "homepage" && action_name == "index" end <ul> <li <%= current_root_class %>><%= link_to "Home", root_path %> Is there any better way to do so!? My current way is so stupid...... 回答1: Not truly an

问题 I have some static pages in a navigation menu. I want to add a class like "current" to the item which is currently displaying. The way I am doing so is to add tons of helper methods (each for one item) to check the controller and action. def current_root_class 'class="current"' if controller_name == "homepage" && action_name == "index" end <ul> <li <%= current_root_class %>><%= link_to "Home", root_path %> Is there any better way to do so!? My current way is so stupid...... 回答1: Not truly an

问题 I have some static pages in a navigation menu. I want to add a class like "current" to the item which is currently displaying. The way I am doing so is to add tons of helper methods (each for one item) to check the controller and action. def current_root_class 'class="current"' if controller_name == "homepage" && action_name == "index" end <ul> <li <%= current_root_class %>><%= link_to "Home", root_path %> Is there any better way to do so!? My current way is so stupid...... 回答1: Not truly an

问题 I have created a tab bar with 5 tabs. we want to create a feature that we can enable/disable some tabs of tab bar programmatically so that user will not able to click on it. We have used default tab bar controller and we are using swift 3. Does anyone have an idea how to manage this stuff? I have tried many ways but it seems that it's not possible to restrict the user to click on the tab. Please let me know if anyone has faced and solved this issue. 回答1: let tabBarControllerItems = self

问题 I have created a tab bar with 5 tabs. we want to create a feature that we can enable/disable some tabs of tab bar programmatically so that user will not able to click on it. We have used default tab bar controller and we are using swift 3. Does anyone have an idea how to manage this stuff? I have tried many ways but it seems that it's not possible to restrict the user to click on the tab. Please let me know if anyone has faced and solved this issue. 回答1: let tabBarControllerItems = self

问题 I have been plugging away at this navigation code, and I finally got the 1st layers of my menu to work. Yay! But I've noticed that my code ONLY works on the 1st layers. Well, kinda. Open menus are supposed to close when you click on a different menu. It works for my top-level nav options, but not my sub-menu options. I'm tempted to just copy/paste the code so that everything works for all levels, but I know one big rule in coding is Don't Repeat Yourself (DRY). So could someone have a look at

问题 I have a simple navigation bar at the top of the page with several links – the first is floated to the left using li:first child, the last floated to the right using li:last child, with the remainder centered in the middle of the page. To all intents and purposes this works – but although the space between each of the navigation blocks is the same, the central block is actually positioned much further to the right. I presume this is because the links differ in length – ie 23 characters for

问题 I have a simple navigation bar at the top of the page with several links – the first is floated to the left using li:first child, the last floated to the right using li:last child, with the remainder centered in the middle of the page. To all intents and purposes this works – but although the space between each of the navigation blocks is the same, the central block is actually positioned much further to the right. I presume this is because the links differ in length – ie 23 characters for

问题 I have a simple navigation bar at the top of the page with several links – the first is floated to the left using li:first child, the last floated to the right using li:last child, with the remainder centered in the middle of the page. To all intents and purposes this works – but although the space between each of the navigation blocks is the same, the central block is actually positioned much further to the right. I presume this is because the links differ in length – ie 23 characters for