cell | 易学教程

Xcode - Swift Programmatically select tablecell

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问题 I need to know how to set the state of a tableviewcell to selected via code. I tried the following: let cell:TblCell = tableView.cellForRowAtIndexPath(indexPath) as TblCell cell.selected = false; But this didn't work, even though it did not give any errors. Should this have worked? or is this done differently? 回答1: tableView.selectRowAtIndexPath(indexPath, animated: true, scrollPosition: .Middle) Instead of .Middle you can use .None so the tableView doesn't scroll to the selected cell. .Top

Location-aware applications on WP7.5

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问题 I would like to create a location-aware application on WP7.5 Is it possible to automatically get a trigger on location change without our application running on background? For example: I would like to know if a user has moved in a new location. If the user has moved I would like to trigger a specific event from my application. My only concern is that if I do that from my application I will consume a significant amount of battery. Is it a specific WP7 service which can inform my application

Ranking of a cell array

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问题 Take the following example: clear all Name1 = {'Data1','Data2','Data3','Data4'}; Data = {6.2,6,3.2,8}; CombnsName = nchoosek(Name1,2); CombnsData = nchoosek(Data,2); for i = 1:length(CombnsData); multiplied{i} = CombnsData{i,1}.*CombnsData{i,2}; end multiplied = multiplied'; Final = [CombnsName, multiplied]; Rankd = sort(cell2mat(multiplied)); Here, Final represents the values gained by multiplying every possible combination of 'Name1'. Now, I'm trying to find a way of changing the order of

UITableView

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//非原创　　UITableView是app开发中常用到的控件，功能很强大，多用于数据的显示。下面以一个简单的实例来介绍tableview的基本用法。（适合新手，高手飘过） @interface TableViewTestViewController : UIViewController<UITableViewDataSource,UITableViewDelegate>{ UITableView *DataTable; NSMutableArray *dataArray1; ／／定义数据数组1 NSMutableArray *dataArray2;／／定义数据数组2 NSMutableArray *titleArray;／／定义标题数组 } - (void)viewDidLoad { [superviewDidLoad]; ／／初始化tableview DataTable = [[UITableViewalloc] initWithFrame:CGRectMake(0, 0, 320, 420)];／／指定位置大小 [DataTablesetDelegate:self];／／指定委托 [DataTablesetDataSource:self];／／指定数据委托 [self.viewaddSubview:DataTable];／／加载tableview dataArray1 =

How to change the background color of a tablecell on click with angular2?

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问题 I have a table and I would like to highlight and unhighlight a cell(change the background of the cell)of the table on click on the cell. My HTML looks like that: <table class="table table-bordered"> <thead> <tr> <th *ngFor="let weekday of weekdays"> <div>{{weekday}}</div> </th> </tr> </thead> <tbody> <tr scope="row" *ngFor="let time of times"><td>{{time}}</td> <th scope="row" class = 'success' *ngFor="let weekday of weekdaysForClick" (click) = "onClick(weekday, time)" [ngClass] = "'active'"

Fit image to table cell width percentage (HTML)

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问题 I organized my website content in a HTML table, and I've set specific widths for every cell (in percentages). Now I have a rather large image in a combined cell that is supposed to span 30% of the whole table, or 2 cells (of 15% each) from a different row (using colspan="2"). The image, however, is wider than 30% of my small computer screen, and that seems to dominate over my set cell width, i.e. it stretches my cell to the width of my image rather than the other way around, which throws off

MATLAB set background color in a cell of uicontrol

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问题 I want to set a background color in a cell.. something like: so I have the RGB color and the number of cell I want to color. you can assume that the position of the cell is what I wrote. my color is given by RGB: color = [255 0 0]; I want to add it in the 10th cell, so I wrote something like: S.cell_data(10) = uicontrol('style','text',... 'units','pix',... 'Position',[20 70 80 40],... 'string',color); but the style is not 'text' and it is no a string. this is what I'm trying right now: S.cell

Adding a static cell to a UICollectionView

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问题 I have a UICollectionView that displays cells from an array. I want the first cell to be a static cell that serves as a prompt to segue into a create flow (eventually adding a new cell). My approach would have been to add two sections to my collectionView, but I currently can't figure out how to return a cell within cellForItemAtIndexPath if I do so. This is my attempt: func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell

Undefined function 'lt' for input arguments of type 'cell'. in using cell

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问题 My teacher asked us to write a program for Huffmam Coding in MATLAB, but I met a problem: Undefined function 'lt' for input arguments of type 'cell'. Error in work5455 (line 49) Which is this line: if(cell{k+1}(1)<cell{k}(1)&&cell{k}(2)==-1) Since there is no 'lt',how can I solve it? My teacher is just too busy to answer my e-mail..... Here`s the code(not finished),thank you very much! fprintf('Reading data...') data=imread('C:\Users\dell\Desktop\2.png'); data=rgb2gray(data); data=uint8(data)

How to screen capture screenshots or movies on the Linux framebuffer

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问题 How can the linux frame buffer, on Cell Linux, be captured to obtain either screen shots or movies? Is there a tool to do this for a running program, or must the program writing to, and presumably controlling, the frame buffer also handle capture and recording? If so, how would the program do so? 回答1: Many tools for doing so, for example FBGrab and fbdump; look at the sources for those two, it would be pretty easy to extend either one or write your own which captures video instead of just