IOS development-File Upload

IOS development-File Upload
IOS development-File Upload

It is essential to upload files in the form of mobile app development files. Recently, I have simply sorted out the file upload code for IOS files. If you need Android code, I can also share it with you! QQ group: 74432915 everyone is welcome to discuss
First of all, this demo uses the open source framework AFNetworking source code: http://download.csdn.net/detail/wangliang198901/7809439
Import the entire framework to a new IOS Project
The FKAppDelegate. h statement is as follows:

# Import

# Import "AFHTTPRequestOperationManager. h"

@ Interface FKAppDelegate: UIResponder

@ Property (strong, nonatomic) UIWindow * window;

@ Property (strong, nonatomic) AFHTTPRequestOperationManager * manager;

@ End

Then initialize in the FKAppDelegate. m file

# Import "FKAppDelegate. h"

@ Implementation FKAppDelegate

-(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions

{

Self. manager = [AFHTTPRequestOperationManagermanager];

Self. manager. responseSerializer = [[AFHTTPResponseSerializeralloc] init];

Return YES;

}

Then, perform the following operations in the Custom ViewController:

# Import "FKViewController. h"

# Import "FKAppDelegate. h"

@ Interface FKViewController ()

{

FKAppDelegate * appDelegate;

NSArray * images;

}

@ End

@ Implementation FKViewController

-(Void) viewDidLoad

{

[SuperviewDidLoad];

AppDelegate = [UIApplicationsharedApplication]. delegate;

Self. picker. dataSource = self;

Self. picker. delegate = self;

// Use the simplified syntax to create an NSArray set

Images = @ [@ "logo", @ "java", @ "android"];

}

// The method defined in UIPickerViewDataSource. the return value of this method determines how many columns the control contains.

-(NSInteger) numberOfComponentsInPickerView :( UIPickerView *) pickerView

{

// If the return value is 1, the control contains only one column.

Return1;

}

-(NSInteger) pickerView :( UIPickerView *) pickerView

NumberOfRowsInComponent :( NSInteger) component

{

Returnimages. count;

}

# Define kImageTag 1

-(UIView *) pickerView :( UIPickerView *) pickerView viewForRow:

(NSInteger) row forComponent :( NSInteger) component

ReusingView :( UIView *) view

{

// If the tag of a reusable view is not kImageTag, it indicates that the view does not exist and needs to be created again.

If (view. tag! = KImageTag)

{

View = [[UIViewalloc] init];

// Set tag attributes for the UIView

View. tag = kImageTag;

// The settings do not allow user interaction

View. userInteractionEnabled = NO;

UIImageView * iv = [[UIImageViewalloc] initWithImage:

[UIImageimageNamed: [imagesobjectAtIndex: row];

Iv. frame = CGRectMake (0, 0, 48, 48 );

Iv. contentMode = UIViewContentModeScaleAspectFit;

[ViewaddSubview: iv];

}

Return view;

}

// The method defined in UIPickerViewDelegate. The returned value of this method determines the height of the list item.

-(CGFloat) pickerView :( UIPickerView *) pickerView

RowHeightForComponent :( NSInteger) component

{

Return48;

}

// The method defined in UIPickerViewDelegate. the return value of this method determines the width of the list item.

-(CGFloat) pickerView :( UIPickerView *) pickerView

WidthForComponent :( NSInteger) component

{

Return48;

}

-(IBAction) upload :( id) sender

{

// Obtain the row selected by the user

NSInteger selectedRow = [self. pickerselectedRowInComponent: 0];

// Obtain the selected file name

NSString * fileName = [imagesobjectAtIndex: selectedRow];

// Determine the file to be uploaded Based on the selected file name

NSURL * filePath = [[NSBundlemainBundle] URLForResource: fileName

WithExtension: @ "png"];

NSDictionary * parameters =@{@ "name": @ "Additional Request parameters "};

// Use AFHTTPRequestOperationManager to send a POST request

[AppDelegate. manager

POST: @ "http: // 192.168.1.88: 8888/AFNetworkingServer/upload"

Parameters: parameters

// Use a code block to encapsulate the file data to be uploaded

ConstructingBodyWithBlock: ^ (id formData)

{

[FormDataappendPartWithFileURL: filePath // specify the uploaded file

Name: @ "file" // specify the name of the Request Parameter corresponding to the file to be uploaded

// Specify the original file name

FileName: [NSStringstringWithFormat: @ "symbol @.png", fileName]

// Specify the MIME type of the uploaded file

MimeType: @ "image/png"

Error: nil];

}

// Obtain the code block triggered when the server response is successful

Success: ^ (AFHTTPRequestOperation * operation, id responseObject)

{

// When the HTTP Response parser is used, the server response data is encapsulated in NSData

// Convert NSData to NSString and use UIAlertView to display the logon result.

[[UIAlertViewalloc] initWithTitle: @ "Upload result" message:

[[NSStringalloc] initWithData: responseObjectencoding:

NSUTF8StringEncoding] delegate: self

CancelButtonTitle: @ "OK" otherButtonTitles: nil]

Show];

}

// Obtain the code block triggered when the server response fails.

Failure: ^ (AFHTTPRequestOperation * operation, NSError * error)

{

NSLog (@ "An error occurred while obtaining server response! ");

}];

}

@ End

Source code download: http://download.csdn.net/detail/wangliang198901/7813361 Note: This article is Personal Original, please respect the results of personal labor, thank you!