save

问题 As usual in android, each time the screen is flipped to portrait/landscape mode an Activity runs through life-cycle from onSaveInstanceState to onDestroy and then is recreated. In my Activity there's a ButtonText which can be changed by the user. It's reseted to the initial state, but I have to save the last state somehow. How can I achieve that, will I have to override onSaveInstanceState? Can someone show an example? 回答1: Step #1: Call getText().toString() on the Button to get the caption.

问题 As usual in android, each time the screen is flipped to portrait/landscape mode an Activity runs through life-cycle from onSaveInstanceState to onDestroy and then is recreated. In my Activity there's a ButtonText which can be changed by the user. It's reseted to the initial state, but I have to save the last state somehow. How can I achieve that, will I have to override onSaveInstanceState? Can someone show an example? 回答1: Step #1: Call getText().toString() on the Button to get the caption.

问题 Whenever I press the back button my app doesn't call onSaveInstanceState() and I can't save data. I'm trying to make a scheduler app and I need to save schedules already set even after I press the back button. I want to dynamically edit a ListView by adding new data from the source file to a stringArray. The problem I'm having is that the file schedules.txt is not saving. Whenever the program opens a new activity the file is now blank. This is the code I have so far: public void onCreate

问题 How to save a web page using php similar to save as in Browser -> file -> save page as I need to save web page dynamically when url is given as parameter. Containing the images in related folder. Thanks in advance :) 回答1: You would need to use php curl to download the HTML from that page. After that you need to scrape the content of images, css, js and other files and download and save them conserving the path, by using readfile() function. 来源： https://stackoverflow.com/questions/16476210

问题 Im trying to save some data into a xml file using the following PHP script: <?php $string = '<a href="google.com/maps">Go to google maps</a> and some special characters ë è & ä etc.'; $string = htmlentities($string, ENT_QUOTES, 'UTF-8'); $doc = new DOMDocument('1.0', 'UTF-8'); $doc->preserveWhiteSpace = false; $doc->formatOutput = true; $root = $doc->createElement('top'); $root = $doc->appendChild($root); $title = $doc->createElement('title'); $title = $root->appendChild($title); $id = $doc-

问题 Im trying to save some data into a xml file using the following PHP script: <?php $string = '<a href="google.com/maps">Go to google maps</a> and some special characters ë è & ä etc.'; $string = htmlentities($string, ENT_QUOTES, 'UTF-8'); $doc = new DOMDocument('1.0', 'UTF-8'); $doc->preserveWhiteSpace = false; $doc->formatOutput = true; $root = $doc->createElement('top'); $root = $doc->appendChild($root); $title = $doc->createElement('title'); $title = $root->appendChild($title); $id = $doc-

问题 I give my pdfData to user to save. He can save to files and make a file, but the default name of the pdf file is: PDF document.pdf. I want my own filename if this is possible. Perhaps I can change the filename within the pdfData before I give pdfData to UIActivityViewController? Here is my code // Create page rect let pageRect = CGRect(x: 0, y: 0, width: 595.28, height: 841.89) // A4, 72 dpi // Create PDF context and draw let pdfData = NSMutableData() UIGraphicsBeginPDFContextToData(pdfData,

问题 I want the Windows Phone 8 app that I am building at this moment to access the camera for taking a photo when a concrete button on the screen is pressed and then save the image that has been taken into a determined folfer (a folder created into the Windows Phone project by me, not the Windows Phone default image gallery). Could you help me accesing the camera, taking the picture and saving it into the folder created by me, please? I am using XAML and C#. Thank you so much!!! 回答1: I would

问题 I'm trying to use the UserDefaults to persistently save a boolean value. This is my code : public static var isOffline = UserDefaults.standard.bool(forKey: "isOffline") { didSet { print("Saving isOffline flag which is now \(isOffline)") UserDefaults.standard.set(isOffline, forKey: "isOffline") UserDefaults.standard.synchronize() } } Why doesn't work? What is the problem in this code? EDIT: The problem is that when I try to retrieve "isOffline" key from UserDefaults I always get a false . EDIT

问题 is it possible to save entire document loaded in Webbrowser (in Delphi) as a ordinary HTML file with new values (I mean values entered by user in html's forms this document)? I need this for reading this HTML document with all values next time when application will be used. 回答1: Sure this is possible! Small demo App, make a new vcl forms application, drop a TWebBrowser , a TButton and a TMemo on your form and use this code (don't forget to bind OnCreate for the Form and OnClick for the Button