cell

getAllCellInfo returns null in android 4.2.1

匿名 (未验证) 提交于 2019-12-03 02:12:02
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: My Android version is 4.2.1 and I am trying to make use of TelephonyManager.getAllCellInfo() method. In my manifest file I have the ACCESS_COARSE_UPDATES , ACCESS_COARSE_LOCATION , ACCESS_FINE_LOCATION permissions. However that method returns null . 回答1: From TelephonyManager.getAllCellInfo() javadoc: This is preferred over using getCellLocation although for older devices this may return null in which case getCellLocation should be called. Some sources report that this method is only implemented on CDMA/LTE devices, and other types of

Storyboard static cells: dequeueReusableCellWithIdentifier returns nil

匿名 (未验证) 提交于 2019-12-03 02:11:02
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: Using storyboard, static cells, in cellForRowAtIndexPath: the line UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; always returns nil . I have checked the following: Identifier of the cell is correctly set in IB/Storyboard and I use the same identifier in code. I verified this many times. I have not instantiated the view controller elsewhere (which was the problem in this stackoverflow question ). My view controller is a subclass of UITableViewController , of course, wrapped into an ad hoc navigation

Button in UITableViewCell not responding under ios 7

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 have one tableview and each cell contains one button. It's working pretty well all iOS versions but 7. I don't know what's going on. The cell is constructed in one xib file. Could anyone give me some suggestions? Thanks in advance. 回答1: What worked for me is this: contentView.userInteractionEnabled = NO; called after loading my custom cell from nib. It looks like this content view is created and set as a top-level child view after creating views defined in the nib file. 回答2: Calling [cell bringSubviewToFront:button] after loading the cell

What's a good algorithm to generate a maze?

匿名 (未验证) 提交于 2019-12-03 02:11:02
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): 由 翻译 强力驱动 问题: Say you want a simple maze on an N by M grid, with one path through, and a good number of dead ends, but that looks "right" (i.e. like someone made it by hand without too many little tiny dead ends and all that). Is there a known way to do this? 回答1: From http://www.astrolog.org/labyrnth/algrithm.htm Recursive backtracker: This is somewhat related to the recursive backtracker solving method described below, and requires stack up to the size of the Maze. When carving, be as greedy as possible, and always carve into an unmade section

Script to summarise data not updating

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 have a Google spreadsheet of timesheet data; it has a sheet for each month, each sheet is a lot of six column blocks, one block per client. I have created a summary sheet that goes and gets the total for each clients and displays it in a list: function getClientTotals(sheetname, colcount) { colcount = colcount ? colcount : 6; var res; var ss = SpreadsheetApp.openById('myid_goes_here'); if(ss) { res = []; var totrow = ss.getRange(sheetname + '!A1:ZZ1').getValues()[0]; for(var i = 0; i I have then just added a cell to my summary sheet

Insert row into Excel spreadsheet using openpyxl in Python

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 looking for the best approach for inserting a row into a spreadsheet using openpyxl. Effectively, I have a spreadsheet (Excel 2007) which has a header row, followed by (at most) a few thousand rows of data. I'm looking to insert the row as the first row of actual data, so after the header. My understanding is that the append function is suitable for adding content to the end of the file. Reading the documentation for both openpyxl and xlrd (and xlwt), I can't find any clear cut ways of doing this, beyond looping through the content

Excel Number Format: What is “[$-409]”?

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 automating excel, using the macro system as a guide to what i should do through automation. When i format a column as a date, the macro generated a NumberFormat for the column to be: [$-409]m/d/yy h:mm AM/PM;@ i'm trying to decipher what this really means. i gather from googling , that the values in the square brackets are a "condition" , and that if the condition: $-409 is met, then it will use the NumberFormat m/d/yy h:mm AM/PM if not, it uses the NumberFormat @ The references i find say that the number format "@" is a Text Placeholder

How do I access structure fields dynamically?

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 have a structure with many fields which are vectors of different lengths. I would like to access the fields within a loop, in order. I tried getfield as follows but MATLAB doesn't like that. How can I do this? S = struct('A', [1 2], 'B',[3 4 5]); SNames = fieldnames(S); for loopIndex = 1:2 field = getfield(S, SNames(loopIndex)); %do stuff w/ field end ??? Index exceeds matrix dimensions I'm using structures in the first place because an array would have trouble with the different field lengths. Is there a better alternative to that? 回答1:

Parse HTML content in VBA

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 have a question relating to HTML parsing. I have a website with some products and I would like to catch text within page into my current spreadsheet. This spreadsheet is quite big but contains ItemNbr in 3rd column, I expect the text in the 14th column and one row corresponds to one product (item). My idea is to fetch the 'Material' on the webpage which is inside the Innertext after tag. The id number changes from one page to page (sometimes ). Here is the structure of the website: <div style="position:relative;"> <div></div> <table id=

How to get cell service signal strength in Android?

匿名 (未验证) 提交于 2019-12-03 02:11:02
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 write a very simple Android application that checks the signal strength of the current cell. So far, I have only found something called getNeighboringCellInfo() , but I'm not really sure if that includes the current cell. How do I get the CURRENT cell signal strength in Android? Does getNeighborCellInfo() get the current cell? It doesn't seem like it based on the results that I have been able to get with it. Here's my current code: List<NeighboringCellInfo> n = tm.getNeighboringCellInfo(); //Construct the string String s = "";