ios 8 download for ipad

iOS Development Web Chapter-File download (two · reasonable)One, side download, side write1. IdeasAppend the downloaded data to the end of the file until all the data has been downloaded.1. When the server is connected, create an empty file into the sandbox Nsfilemanager (file management Class)2. Create a file handle to write data3. After receiving the data retur

: (NSString *) urlstring downloadfileprogress: (void (^) (nsprogress *)) Downloadfileprogress Setupfilepath: (Nsurl * (^) (Nsurlresponse *)) Setupfilepath Downloadcompletionhandler: (void (^) ( Nsurl *, Nserror *)) downloadcompletionhandler{Nsurlrequest *request = [nsurlrequest requestwithurl:[nsurl urlwithstring:urlstring];Afhttpsessionmanager *manager = [Afhttpsessionmanager manager];Manager.requestserializer = [Afhttprequestserializer serializer];Manager.responseserializer = [Afhttpresponsese

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First, to achieve the download file progress control1. Code examples 1 #import "YYViewController.h" 2 3 @interface Yyviewcontroller () 4 @property (Nonatomic,strong) Nsmutabledata *fileda Ta 5 @property (Nonatomic,strong) Nsfilehandle *writehandle; 6 @property (nonatomic,assign) long long currentlength; 7 @property (nonatomic,assign) long long sumlength; 8 @property (weak, nonatomic) Iboutlet Uiprogre

, (unsigned long) data.length);Tips:If get contains a range request header, the response is returned as a status code of 206 (partialcontent) instead of a (OK)7 , writing data to a file-(void) AppendData: (NSData *) data{Open cache fileNsfilehandle *FP =[Nsfilehandle FileHandleForWritingAtPath:self.cachePath];If the file does not exist, write the data directlyif (!FP) {[Data WriteToFile:self.cachePath Atomically:yes];} else { // move to end of file[FP Seektoendoffile]; // append a data file to

. Implemented directly in M-(Ibaction) DoAction: (UIButton *) Sender {[Self showappinapp:@ "xxxxxx"];//here xxxxx need to be replaced with required AppID}-(void) Showappinapp: (NSString *) _appid {Class Isallow = nsclassfromstring (@ "Skstoreproductviewcontroller");if (isallow! = nil) {Skstoreproductviewcontroller *skstoreproductviewcontroller = [[Skstoreproductviewcontroller alloc] init];Skstoreproductviewcontroller.delegate = self;[Skstoreproductviewcontroller loadproductwithparameters:@{sksto