logo
down
shadow

iPhone: How to Write an Image to Disk in the App Directories


iPhone: How to Write an Image to Disk in the App Directories

By : David Mendoza
Date : October 16 2020, 11:12 AM
will help you You shouldn't have a hard coded path to the simulator directories. That will fail on the device or when the simulator resets. Neither should you save user data anywhere but the app's Document folder.
Instead use:
code :


Share : facebook icon twitter icon
Blackfin. 2D DCT/IDCT (image compression) with BF537 EZ-KIT, HOW TO WRITE TO FILE (on disk) reconstructed image (Raw pix

Blackfin. 2D DCT/IDCT (image compression) with BF537 EZ-KIT, HOW TO WRITE TO FILE (on disk) reconstructed image (Raw pix


By : Daniel Jagelund
Date : March 29 2020, 07:55 AM
it should still fix some issue Before all the pixel data, add information for the bitmap header.
http://en.wikipedia.org/wiki/BMP_file_format#Bitmap_file_header
How can i sort the directories on hard disk in case the user deleted one of the directories?

How can i sort the directories on hard disk in case the user deleted one of the directories?


By : josefser
Date : March 29 2020, 07:55 AM
Hope that helps List the directories, sort them by name, then iterate on the list of directories. If at any moment the directory index and directory name don't match, rename it. here some pseudocode
code :
var listDirs = GetDirectories().OrderBy(d => d.Name);
for (var directoryIndex = 1; directoryIndex <= listDirs.Count; directoryIndex++)
{
    if (directoryIndex != listDirs[directoryIndex-1].Name) {
         Rename(listDirs[directoryIndex-1], directoryIndex);
    }
}
how fast is disk acces on iphone and android to write/update data

how fast is disk acces on iphone and android to write/update data


By : user2694871
Date : March 29 2020, 07:55 AM
I hope this helps you . In my opinion 20 updates in few seconds isn't so much time consuming. More time will take for example building complicated JSON string rather than saving it. But as @Marc B mentioned maybe a better solution will be saving bigger amount of data for example on onDestroy or other "postExecute" method. I believe it will be simpler solution. If you want to store only number of clicks its rather simple to count and save at the end. If not please give as more details
Raw (binary) data too big to write to disk. How to write chunk-wise to disk (appending)?

Raw (binary) data too big to write to disk. How to write chunk-wise to disk (appending)?


By : DeVinci
Date : March 29 2020, 07:55 AM
Any of those help to @MichaelChirico and @user2554330, I was able to figure out a work around. Essentially, I just need to open the file in "a+b" mode as a new connection and feed that file connection into the writeBin function.
Here's a copy of the working code.
code :
large_file = raw(1024 * 1024 * 1024 * 3) 
chunk_size = 1024*1024*512
n_chunks = ceiling(length(large_file)/chunk_size)

if (file.exists("test.bin"))
  file.remove("test.bin")

for (i in 1:n_chunks)
{
  start_byte = ((i - 1) * chunk_size) + 1
  end_byte = start_byte + chunk_size - 1
  if (i == n_chunks)
    end_byte = length(large_file)
  this_chunk = large_file[start_byte:end_byte]
  output_file = file(description="test.bin",open="a+b")
  writeBin(this_chunk, output_file)
  close(output_file)
}
Terraform to create autoscale VM rule setting based on Disk Write Operations/Sec or Disk Write Bytes

Terraform to create autoscale VM rule setting based on Disk Write Operations/Sec or Disk Write Bytes


By : Shahed
Date : March 29 2020, 07:55 AM
it helps some times You lack the metric_resource_id. You could try the following example, this works on my side.
code :
resource "azurerm_monitor_autoscale_setting" "test" {
  name                = "myAutoscaleSetting"
  resource_group_name = "${azurerm_resource_group.test.name}"
  location            = "${azurerm_resource_group.test.location}"
  target_resource_id  = "${azurerm_virtual_machine_scale_set.test.id}"

  profile {
    name = "defaultProfile"

    capacity {
      default = 1
      minimum = 1
      maximum = 10
    }

    rule {
      metric_trigger {
        metric_name        = "Disk Write Operations/Sec"
        metric_resource_id = "${azurerm_virtual_machine_scale_set.test.id}"
        time_grain         = "PT1M"
        statistic          = "Average"
        time_window        = "PT5M"
        time_aggregation   = "Average"
        operator           = "GreaterThan"
        threshold          = 75
      }

      scale_action {
        direction = "Increase"
        type      = "ChangeCount"
        value     = "1"
        cooldown  = "PT1M"
      }
    }

    rule {
      metric_trigger {
        metric_name        = "Disk Write Operations/Sec"
        metric_resource_id = "${azurerm_virtual_machine_scale_set.test.id}"
        time_grain         = "PT1M"
        statistic          = "Average"
        time_window        = "PT5M"
        time_aggregation   = "Average"
        operator           = "LessThan"
        threshold          = 25
      }

      scale_action {
        direction = "Decrease"
        type      = "ChangeCount"
        value     = "1"
        cooldown  = "PT1M"
      }
    }
  }

  notification {
    email {
      send_to_subscription_administrator    = true
      send_to_subscription_co_administrator = true
      custom_emails                         = ["admin@contoso.com"]
    }
  }
}
Related Posts Related Posts :
  • UIAccelerometer Detecting angle Problem
  • How should I handle an incoming call when my application is active on the iPhone?
  • Making toolbar hidden
  • How to add a drop shadow to a UIButton?
  • iPhone: install certificate for SSL connection
  • Clickable links in UITableView that open up Safari
  • iPhone - application being ejected
  • How do I turn on Research Assistant in XCODE Version 3.2.1?
  • Programmaticlaly moving rows with animation in UITableView
  • How to get the Device UUID on the Simulator?
  • How to Add a Splash Screen or Initial View to the Xcode iPhone Utility Template
  • How to zoom within distance by giving location?
  • How to use Key Value Coding to Set Property Values in ABPerson
  • ASIHTTPRequest set timeout
  • How to convert xml to sqlite
  • UITableViewCell background size
  • iPhone TabBarController - set selected tab programmatically
  • Objective c - anything like c?
  • Titanium vs The Native Tools
  • How to terminate an iPhone application through a TabBaritem in Interface Builder?
  • How to Display offline map in iphone using Mapkit
  • iPhone UIWebview Loads on Simulator But not on Device
  • Clear button color on text field
  • calling selector with two arguments on NSThread issue
  • Objective-C: Instance Method is Never Called
  • iPhone: How to Get Basic Authentication to HTTPS Web Service Using NSURLCredential
  • How to set the Tab bar item 1 to be selected by default in iphone?
  • Is it possible to insert an animation into an UITabBarController thats shown when switching Views?
  • CAScrollLayer doesn't scroll!
  • sizeWithFont doesn't give correct height for UITextView if there is a long string in the text being wrapped
  • iPhone ABPeoplePickerNavigationController - How to select two single entries of two different multivalue properties of a
  • iphone sdk: application icon not displaying in simulator
  • Which method should use to release an object?
  • UILabel and superscript
  • UIFont crash problem
  • Is there any way to prevent the user from deleting the installed application?
  • How do I import a CSV file into my iPhone application?
  • How to Post attachments to twitter using twitter API
  • CALayer and obtaining currentcontext of its UIView
  • Scrolling don't work in UITextView included in UIImageView
  • Deleting photos from Resource Path
  • Objective-C copy an NSArray properly?
  • Is the APN Device Token unique to each individual app?
  • NSURLCache Problem with cache response
  • iPad viewWillAppear and presentModalViewController problems
  • How to set the position of a sprite within a box2d body?
  • Localization of strings in static lib
  • How to download text file from web on iPhone?
  • Tesseract Example for Iphone
  • How to record speech in iphone?
  • strange multiple files download - NSURLConnection
  • Is there anyway to get javascript error on android or iphone mobile webkit browser?
  • Keeping UINavigationController's navigationBar hidden after UISearchDisplayController selection
  • Hiding a UINavigationController's UIToolbar during viewWillDisappear:
  • how to run application in background in iphone?
  • Some stress tests on my Iphone app
  • I want to know how to sort the dates in objective c?
  • how to hide URL bar in ipod touch
  • ABRecordRef vCard
  • OBJ-C: Getting the minimum/maximum value in a NSMutableArray
  • shadow
    Privacy Policy - Terms - Contact Us © bighow.org