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Change the tint of drawable in xml selector

半腔热情 提交于 2019-12-08 14:34:12
问题 I have a button with the background defined in xml. I would like to tint the button based on the current state it is in - ie - pressed, focussed, normal. Here is my xml file below. Also, my colored_tint_dark , and colored_tint are both translucent colors that I am trying to draw over the drawable image that I call from the resources folder. Here is the problem. When the UI first loads, the image has the appropriate tint on it, but after pressed, the pressed state doesn't show any tint, then

Force a class to implement a method without restricting the parameters in C#

女生的网名这么多〃 提交于 2019-12-08 14:34:11
问题 I have an interface that contain the method void DoCommand(); . now I'll force all the child classes to inherit the base class method DoCommand() . but I need each class to define a different parameter for this method to serve the page with the proper parameters. How can I do that ? Is it even possible ! N.B: I'm building an ASP.NET web application and the page that will implement the method already inherits from the page base class, so I think Interface is my only option. as only one base

What is the ..= (dot dot equals) operator in Rust?

点点圈 提交于 2019-12-08 14:34:10
问题 I saw this ..= operator in some Rust code: for s in 2..=9 { // some code here } What is it? 回答1: This is the inclusive range operator. The range x..=y contains all values >= x and <= y , i.e. “from x up to and including y ”. This is in contrast to the non-inclusive range operator x..y , which doesn't include y itself. fn main() { println!("{:?}", (10..20) .collect::<Vec<_>>()); println!("{:?}", (10..=20).collect::<Vec<_>>()); } // Output: // // [10, 11, 12, 13, 14, 15, 16, 17, 18, 19] // [10,

Use reselect selector with parameters

六月ゝ 毕业季﹏ 提交于 2019-12-08 14:34:09
问题 How do I pass additional parameters to combined selectors? I am trying to • Get data • Filter data • Add custom value to my data set / group data by myValue export const allData = state => state.dataTable export const filterText = state => state.filter.get('text') export const selectAllData = createSelector( allData, (data) => data ) export const selectAllDataFiltered = createSelector( [ selectAllData, filterText ], (data, text) => { return data.filter(item => { return item.name === text }) }

how to get id from url in express, param and query doesnt seem to work

只愿长相守 提交于 2019-12-08 14:34:09
问题 I have a url, i'm trying to get id but none of it is working req.params nor req.query app.get('/test/:uid', function testfn(req, res, next) { debug('uid', req.params.uid); // gives :uid debug('uid', req.query.uid); // gives undefined }); I'm doing an ajax call like this $(document).on('click', 'a.testlink', function(e) { $.ajax({ type: "GET", url: '/test/:uid', success: function(var) { console.log('success'); }, error: function() { alert('Error occured'); } }); return false; }); I'm using app

Conditional Split fails if value is NULL in SSIS

我是研究僧i 提交于 2019-12-08 14:34:08
问题 I am passing result of FULL Outer join to Conditional Split and Filtering Records on the basis of following rules . Basically both tables has same schema and Primarykey values are same. a. If Primary key of Source is NULL b. If Primary Key of Destination is NULL c. If Source and Destination key matches. It works fine for (a) and (b) but fails for (c) Source.Id == Destination.Id and throws exception that condition evaluated as NULL where Boolean was expected. How i can make this work?

No Xcode support for iOS 12.3

偶尔善良 提交于 2019-12-08 14:34:07
问题 My phone has updated to iOS 12.3 beta, the latest Xcode 10.2 beta only supports up to iOS 12.2. Is there a beta version of xcode anywhere that is compatible with iOS 12.3? I guess the options are to wait for apple to release a new version of xcode or to roll back. unless anyone knows otherwise? 回答1: I find a solution to fix this problem. You should make a folder named 12.3 (... what is written in your error message) in Program/Xcode-beta/Contents/Developer/Platforms/iPhoneOS.platforms

Visual Studio Team Services - Waiting for an available agent

霸气de小男生 提交于 2019-12-08 14:34:07
问题 This issue started happening to me this morning. I'm trying to run a build on Visual Studio Team Services but the build never starts, it stays like this forever: FYI I have only 1 agent (Hosted). I checked the activity of the agent on Control Panel > Agent Pools > Requests but the agent seems to be available, i.e. there is no other activity. I have stopped and restarted the builds 2 or 3 times with no luck. Any suggestions? Is there any way to restart the build agent? 回答1: This is caused by a

Comparing DateTimes: DateTime.Compare() versus relational operators

瘦欲@ 提交于 2019-12-08 14:34:07
问题 Here are two ways of comparing two DateTimes: DateTime now = DateTime.Now; DateTime then = new DateTime(2008, 8, 1); // Method 1 if (DateTime.Compare(then, now) < 0) // ... // Method 2 if (then < now) // ... .Compare returns an integer (-1,0,1) indicating whether the first instance is earlier than, the same as, or later than the second instance. My question is, why would I use .Compare when I can use relational operators ( < , <= , == , >= , > ) directly? It seems to me, using .Compare , I

C#: How to set default value for a property in a partial class?

为君一笑 提交于 2019-12-08 14:34:06
问题 I'm very new to C# so please bear with me... I'm implementing a partial class, and would like to add two properties like so: public partial class SomeModel { public bool IsSomething { get; set; } public List<string> SomeList { get; set; } ... Additional methods using the above data members ... } I would like to initialize both data members: IsSomething to True and SomeList to new List<string>() . Normally I would do it in a constructor, however because it's a partial class I don't want to

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