storage

问题 I'm trying to get the available iOS device storage using Swift . I found this function here func deviceRemainingFreeSpaceInBytes() -> NSNumber { let documentDirectoryPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true) let systemAttributes = NSFileManager.defaultManager().attributesOfFileSystemForPath(documentDirectoryPath.last as String, error: nil) return systemAttributes[NSFileSystemFreeSize] as NSNumber } But at compile time this error is given: [NSObject

问题 I am developing ionic 3 app that download videos from server to the device's native storage . i used this URL to save file: let externalDir = this.file.externalDataDirectory; file download is fine it is downloaded and i can view it from the device. for more details the file link in the storage is: /storage/emulated/0/Android/data/xxxxxxxx/files/VideoTest1/0.mp4 but the problem is i want to play that downloaded video into my app using <video> tag, i used the same link to view it but it doesn't

问题 I'm trying to retrieve a picture from my file system after a good storage,(instead of putting it in the database I copy it to the disc and i put the path to the db) I had store the picture to c:\images\ folder and supposing that the name the complete path is c:\images\mypic.jpg when I try to retrieve it a set the img src attribute to <img src="c:\images\mypic.jps"> by using some java code in the browser console I found this error Not allowed to load local resource: file:///C://images//mypic

问题 Apparently PostgreSQL stores a couple of values in the header of each database row. If I don't use NULL values in that table - is the null bitmap still there? Does defining the columns with NOT NULL make any difference? 回答1: It's actually more complex than that. The null bitmap needs one bit per column in the row, rounded up to full bytes. It is only there if the actual row includes at least one NULL value and is fully allocated in that case. NOT NULL constraints do not directly affect that.

问题 I have been at this all day and can't seem to get it to work. It use to work before according to the previous person who worked on it. cameraIntent = new Intent("android.media.action.IMAGE_CAPTURE"); String imageName = CustomApp.getTimeStamp(0) ; String path = CustomApp.getCurrentActivity().getDir("images", Context.MODE_WORLD_WRITEABLE).getPath()+File.separator+imageName; File file = new File(path) ; Uri img = Uri.fromFile(file) ; Intent passthruDataIntent = new Intent(); cameraIntent

问题 I am trying to learn some JSP programming with Eclipse and I am having some issues: Here is what I have: 1) Have test.jsp file inside WebContent folder that simply displays "Hello World!". I selected file and clicked Run As. Asked me to restart Tomcat server. Clicked Yes and page opened inside Eclipse showing "Hello World!". 2) I wrote Car class and stored it inside Java Resources/src 3) Tried to reference Car class in my test JSP and everything seemed right. (code below) <%@ page import="ws

问题 I use more than one class and I need a... lets say Global storage for all the class and method. Is it the right way to create a static class for storage? public static class Storage { public static string filePath { get; set; } } Or is there other ways to do it? 回答1: If you really need to make your example a singleton then here is how you do it. public class StorageSingleton { private static readonly StorageSingleton instance; static StorageSingleton() { instance = new Singleton(); } // Mark

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I've looked for a few different solutions but all of them involve rooting, or pre-rooted phones. Mine is not rooted (I'll do it if I have too, but I'm lazy.) Basically, every time I try and update or download an app my phone says there's not enough space on the device, despite my 11GB on SD and 140MB internal,

问题 I use the following code(you can copy and run the code, it works) to load(if exists) and save the data to reuse it in the next execution of my program, but it doesn't work: import matplotlib.pyplot as plt import time import requests import pickle z = [] try: with open('3_tir.pickle', 'rb') as f: last_prices = pickle.load(f) print("pickle loaded") #f = open("last_prices.txt", 'a+') #f.read() except Exception: #f = open("last_prices.txt", 'a+') pass for i in range(25200): time.sleep(1) with

问题 I have a webview inside a Chrome Packaged App and the app has permissions for storage and unlimitedStorage. When I ask for the available storage space from the app It says 8 GB (that It is the whole space available in the device) but when I do it from the web app that the webview loads It says 600 MB aprox. How can I do to set unlimitedStorage space to the webview? 来源： https://stackoverflow.com/questions/47165546/unlimitedstorage-permission-to-a-webview-inside-a-chrome-app