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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm fairly new to this, so sorry if this is a dumb question. How do I get my Xamarin.Forms app to start below the status bar or the notch when applicable? I've tried using a NavigationPage , but then it started wear below the top of the screen. I've also seen a few other solutions, but I can't make it work. Can anyone help? Thanks! 回答1: use UseSafeArea using Xamarin.Forms.PlatformConfiguration.iOSSpecific; using Xamarin.Forms; namespace iPhoneX { public partial class ItemsPage : ContentPage { public ItemsPage() { InitializeComponent(); On

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to set up my React.js app so that it only renders if a variable I have set is true. The way my render function is set up looks like: render: function() { var text = this.state.submitted ? 'Thank you! Expect a follow up at '+email+' soon!' : 'Enter your email to request early access:'; var style = this.state.submitted ? {"backgroundColor": "rgba(26, 188, 156, 0.4)"} : {}; return ( if(this.state.submitted==false) { Request Invite } ) }, Basically, the important portion here is the if(this.state.submitted==false) portion (I want

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to overlay android status bar. In my case it is on top. I do not want to overlay or hide navigation bar. Note : Solution must work on android 4.2.2+. I prefer answers for non-rooted device. I have searched many SO questions and answers, but none works on 4.2.2. Below is my code, but it does not consume touch events. That's why status bar opens its panel. And I do not want this. @Override public void onCreate() { super.onCreate(); windowManager = (WindowManager) getSystemService(WINDOW_SERVICE); int statusBarHeight = (int) Math.ceil(25

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: std::uninitialized_copy copies into an uninitialized range of memory. This could be done using memmove for bitwise copyable types. I stepped through below example code in gdb (compiling with gcc 5.2.0). Thereby I observed that memmove isn't used at all. In the example __is_trivial(Bar) is used to determine whether memmove may be used. It (correctly) evaluates to false as Bar has a non-trivial default constructor (cf. call to std::__uninitialized_copy<false>::__uninit_copy(...) in bits/stl_uninitialized.h line 123 ff). But why is __is_trivial

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I know that the base address register (BAR) in PCI configuration space defines the start location of a PCI address, but how does the size of this region get established? Surely this is a property of the hardware since only it knows how far into its address space it can deal. However, I cannot seem to see a BAR size field in the PCI configuration structure. 回答1: Found the answer at OSDev Wiki : "To determine the amount of address space needed by a PCI device, you must save the original value of the BAR, write a value of all 1's to the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In a very general sense, the problem I am looking to solve is changing one component of a multi-level index into columns. That is, I have a Series that contains a multilevel index and I want the lowest level of the index changed into columns in a dataframe . Here is the actual example problem I'm trying to solve, Here we can generate some sample data: foo_choices = ["saul", "walter", "jessee"] bar_choices = ["alpha", "beta", "foxtrot", "gamma", "hotel", "yankee"] df = DataFrame([{"foo":random.choice(foo_choices), "bar":random.choice(bar

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to understand how to update the UI if I have a read-only property that is dependent on another property, so that changes to one property update both UI elements (in this case a textbox and a read-only textbox. For example: public class raz : INotifyPropertyChanged { int _foo; public int foo { get { return _foo; } set { _foo = value; onPropertyChanged(this, "foo"); } } public int bar { get { return foo*foo; } } public raz() { } public event PropertyChangedEventHandler PropertyChanged; private void onPropertyChanged(object sender,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: There are several similar questions which got no answers but were describe vaguely. I have reduced the problem into a very thin application, and added detailed screenshots. I would highly appreciate a solution for this! The only involved code is one line added to viewDidLoad of the root VC. The purpose of this line is to make the navigation controller opaque: - (void)viewDidLoad { [super viewDidLoad]; self.navigationController.navigationBar.translucent = NO; } A critical information for this question is that 'Title1' has a prompt in its

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've got a problem with my status bar which gets overlapped by the toolbar. I wanted to have the function that when the user scrolles the ListView down, the toolbar disappears behind the status bar so that only the tabs are visible, just like in the WhatsApp and YouTube apps. To achieve this effect or to get this function I used this line: app:layout_scrollFlags="scroll|enterAlways" into my android.support.v7.widget.Toolbar , but know as I said before, the status bar gets overlapped by the toolbar. <?xml version="1.0" encoding="utf-8"?>

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question gives the answer that Java's @Override has the C# equivalent of the override keyword on methods. However, since Java 1.6 the @Override annotation can be applied to interfaces also. The practical use for this is that in Java you get compile errors when a class claims it implements an interface method when it no longer does (e.g. if the interface method is removed). Is there equivalent functionality in C#? Some code examples: Java: public interface A { public void foo(); // public void bar(); // Removed method. } public class B