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Android nfcA.connect(), nfcA.transceive(), nfcA.setTimeout() and nfcA.getMaxTransceiveLength()

由 人盡茶涼 提交于 2019-12-29 06:25:15
问题 I have a a number of newbie NfcA questions. There seems to be little guidance on this in the docs and elsewhere on the web, so I hope no-one minds me stringing a few basic questions together here... I am using nfcA.transceive() to write data to my NTAG213 tag like this: byte[] result = nfcA.transceive(new byte[] { (byte)0xA2, // WRITE (byte)(pageNum & 0x0ff), myData[0], myData[1], myData[2], myData[3] }); 1. The result array is a single byte of value 10. What does this mean and what other

In Django, is there an easy way to render a text field as a template, in a template?

由 随声附和 提交于 2019-12-29 05:00:07
问题 Can you think of an easy way to evaluate a text field as a template during the template rendering. I know how to do it in a view but I'm looking for a template Filter or a Tag ? Something like: {{ object.textfield|evaluate}} or {% evaluate object.textfield %} with object.textfield containing something like: a text with a {% TemplateTag %}. In which TemplateTag will be evaluated, thanks to the evaluate filter. 回答1: Here is a first Tag implementation to solve my question: from django import

In git, how can I find the revision at which a branch was created?

由 时光毁灭记忆、已成空白 提交于 2019-12-29 04:14:52
问题 UPDATE: example repository, https://github.com/so-gitdemo/so-gitdemorepo In the context of the github repo. How can I easily locate rev "b0430cee"? I know I can just look, but the real example that this repository mimics has a dozen committers and multiple other branches. Not quite as easy to use inspection. How can I find the branch creation revision when the branch has been merged multiple times? I am aware of this question: How to determine when a Git branch was created? The solution does

Tag Property in WPF DataGrid Column

由 ∥☆過路亽．° 提交于 2019-12-28 18:44:14
问题 I need to save an string inside a Datagrid Column which differs from the Header. This is needed because I generate a Datagrid dynamically and want to translate the Column Headers while generating them. Then I bind the whole XAML to a ContentControl. No problem till here... But I want to reorder and resize the columns, so I need to lookup them afterwoods. For this I need the original (not translated) ColumnHeader. In my opinion a Tag property of the column would solve this problem, but there

Scraping with rvest - complete with NAs when tag is not present

由 和自甴很熟 提交于 2019-12-28 03:03:05
问题 I want to parse this HTML: and get this elements from it: a) p tag, with class: "normal_encontrado" . b) div with class: "price" . Sometimes, the p tag is not present in some products. If this is the case, an NA should be added to the vector collecting the text from this nodes. The idea is to have 2 vectors with the same length, and after join them to make a data.frame . Any ideas? The HTML part: <html> <head></head> <body> <div class="product_price" id="product_price_186251"> <p class=

How to access the content of a custom cell in swift using button tag?

由 我是研究僧i 提交于 2019-12-27 11:12:32
问题 I have an app that has a custom button in a custom cell. If you select the cell it segues to the a detail view, which is perfect. If I select a button in a cell, the code below prints the cell index into the console. I need to access the contents of the selected cell (Using the button) and add them to an array or dictionary. I am new to this so struggling to find out how to access the contents of the cell. I tried using didselectrowatindexpath, but I don't know how to force the index to be

How to access the content of a custom cell in swift using button tag?

由 妖精的绣舞 提交于 2019-12-27 11:12:08
问题 I have an app that has a custom button in a custom cell. If you select the cell it segues to the a detail view, which is perfect. If I select a button in a cell, the code below prints the cell index into the console. I need to access the contents of the selected cell (Using the button) and add them to an array or dictionary. I am new to this so struggling to find out how to access the contents of the cell. I tried using didselectrowatindexpath, but I don't know how to force the index to be

Tags Get Removed When Using Codesample Plugin with TinyMCE

由 落爺英雄遲暮 提交于 2019-12-25 19:02:25
问题 Since 4.3.0 TinyMCE includes Codesample plugin that lets you enter code snippets. This works very well for languages like Java, PHP, C# etc. that are not directly running in the browser. You save your code snippet to the server, load it back into the browser, edit it, and save it back to the server again - no hassle. If you want to do it with HTML, JavaScript, or XML, then it seems not to be possible to load the code snippet back into the browser after saving it to the server. Most of the

Facebook Tagging friends to the picture

由 扶醉桌前 提交于 2019-12-25 18:46:12
问题 Below code tag only first uid then then its shows Fatal error : Uncaught OAuthException: (#100) Invalid parameter and can i use exact location for tagging.. as in below code x and y values are in pixel $facebook = new Facebook ( array ( 'appId' => FBAPPID, 'secret' => FBSECRETID ) ); $facebook->setFileUploadSupport ( true ); if (isset ( $_POST ['image'] ) && isset ( $_POST ['tname'] )) { $path_to_image = encrypt::instance ()->decode ( $_POST ['image'] ); $tags = (array)encrypt::instance ()-

Symfony2 - Accessing tag array which has values is giving an error

由 谁都会走 提交于 2019-12-25 18:21:59
问题 I am trying to use a getTags() array which is an array of arrays into another method GetTagWeights($tags) but am getting an error when using it with this line: $tagWeights[$tag] = (isset($tagWeights[$tag['tag']])) ? $tagWeights[$tag['tag']] + 1 : 1; I get the following error: ContextErrorException: Warning: Illegal offset type in /var/www/html/Satori/src/Symfony/AcmeBundle/Entity/TagRepository.php line 34 Question: What am I doing wrong here, I've dumped getTags() and there is data? My
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