ios文件夹共享Files

ios11 之后苹果开放了共享文件

这个是干神马用的了 ?简单的说这货是把APP下载的文件给抡出来的一个东西。。但是，我们打开手机上的 “文件” 这个APP 发现里面神马都没有，这货不是管理手机上下载的文件的吗？？？

说到下载文件之前，我们得说到一个东西，叫做iOS 的文件目录 ，我们经常会对文件目录进行操作 ，我们熟悉以下(我们经常使用的)目录

NSDocumentationDirectoryNSDocumentDirectoryNSDownloadsDirectoryNSCachesDirectory

为了观察我们分别建立四个不同的文件夹 。。。

-(void)createDocumentationDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES);    path1 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryOne"];    if(![fileManager fileExistsAtPath:path1]){        [[NSFileManager defaultManager] createDirectoryAtPath:path1 withIntermediateDirectories:YES attributes:nil error:nil];    }}-(void)createDocumentDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    path2 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryTwo"];    if(![fileManager fileExistsAtPath:path2]){        [[NSFileManager defaultManager] createDirectoryAtPath:path2 withIntermediateDirectories:YES attributes:nil error:nil];    }}-(void)createDownloadsDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDownloadsDirectory, NSUserDomainMask, YES);    path3 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryThree"];    if(![fileManager fileExistsAtPath:path3]){        [[NSFileManager defaultManager] createDirectoryAtPath:path3 withIntermediateDirectories:YES attributes:nil error:nil];    }}-(void)createCachesDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);    path4 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryFour"];    if(![fileManager fileExistsAtPath:path4]){        [[NSFileManager defaultManager] createDirectoryAtPath:path4 withIntermediateDirectories:YES attributes:nil error:nil];    }}

分别在四个文件夹中下载文件 。。。

#import "ViewController.h"#import "AFNetworking.h"#define URL1 @"https://hebiao.online/video/1.mp4"#define URL2 @"https://hebiao.online/video/2.mp4"#define URL3 @"https://hebiao.online/video/3.mp4"#define URL4 @"https://hebiao.online/video/4.mp4"@interface ViewController (){    NSString *path1,*path2,*path3,*path4;    NSFileManager *fileManager;}@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    fileManager = [NSFileManager defaultManager];    [self createDocumentationDirectory];    [self createDocumentDirectory];    [self createDownloadsDirectory];    [self createCachesDirectory];    UIButton *button1 = [[UIButton alloc] init];    button1.frame = CGRectMake(20, 100, 150, 40);    button1.backgroundColor = [UIColor lightGrayColor];    [button1 setTitle:@"1苍井空" forState:UIControlStateNormal];    [button1 addTarget:self action:@selector(action1) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:button1];    button1 = [[UIButton alloc] init];    button1.frame = CGRectMake(200, 100, 150, 40);    button1.backgroundColor = [UIColor lightGrayColor];    [button1 setTitle:@"2饭岛爱" forState:UIControlStateNormal];     [button1 addTarget:self action:@selector(action2) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:button1];    button1 = [[UIButton alloc] init];    button1.frame = CGRectMake(20, 100+100, 150, 40);    button1.backgroundColor = [UIColor lightGrayColor];    [button1 setTitle:@"3小泽玛利亚" forState:UIControlStateNormal];     [button1 addTarget:self action:@selector(action3) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:button1];    button1 = [[UIButton alloc] init];    button1.frame = CGRectMake(200, 100+100, 150, 40);    button1.backgroundColor = [UIColor lightGrayColor];    [button1 setTitle:@"4波多野结衣" forState:UIControlStateNormal];     [button1 addTarget:self action:@selector(action4) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:button1];}-(void)action1{    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];    manager.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];    manager.securityPolicy.allowInvalidCertificates = YES;    [manager.securityPolicy setValidatesDomainName:NO];    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:URL1]];    NSURLSessionDownloadTask *download = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {        NSLog(@" 1苍井空 = %ld",downloadProgress.completedUnitCount);    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {        NSString *pth =  [path1 stringByAppendingPathComponent:@"1苍井空.mp4"];        return [NSURL fileURLWithPath:pth];    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {    }];    //执行Task    [download resume];}-(void)action2{    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];    manager.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];    manager.securityPolicy.allowInvalidCertificates = YES;    [manager.securityPolicy setValidatesDomainName:NO];    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:URL2]];    NSURLSessionDownloadTask *download = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {        NSLog(@" 2饭岛爱 = %ld",downloadProgress.completedUnitCount);    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {        NSString *pth =  [path2 stringByAppendingPathComponent:@"2饭岛爱.mp4"];        return [NSURL fileURLWithPath:pth];    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {    }];    //执行Task    [download resume];}-(void)action3{    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];    manager.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];    manager.securityPolicy.allowInvalidCertificates = YES;    [manager.securityPolicy setValidatesDomainName:NO];    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:URL3]];    NSURLSessionDownloadTask *download = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {        NSLog(@" 3小泽玛利亚 = %ld",downloadProgress.completedUnitCount);    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {        NSString *pth =  [path3 stringByAppendingPathComponent:@"3小泽玛利亚.mp4"];        return [NSURL fileURLWithPath:pth];    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {    }];    //执行Task    [download resume];}-(void)action4{    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];    manager.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];    manager.securityPolicy.allowInvalidCertificates = YES;    [manager.securityPolicy setValidatesDomainName:NO];    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:URL4]];    NSURLSessionDownloadTask *download = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {        NSLog(@" 4波多野结衣 = %ld",downloadProgress.completedUnitCount);    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {        NSString *pth =  [path4 stringByAppendingPathComponent:@"4波多野结衣.mp4"];        return [NSURL fileURLWithPath:pth];    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {    }];    //执行Task    [download resume];}-(void)createDocumentationDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES);    path1 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryOne"];    if(![fileManager fileExistsAtPath:path1]){        [[NSFileManager defaultManager] createDirectoryAtPath:path1 withIntermediateDirectories:YES attributes:nil error:nil];    }}-(void)createDocumentDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    path2 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryTwo"];    if(![fileManager fileExistsAtPath:path2]){        [[NSFileManager defaultManager] createDirectoryAtPath:path2 withIntermediateDirectories:YES attributes:nil error:nil];    }}-(void)createDownloadsDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDownloadsDirectory, NSUserDomainMask, YES);    path3 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryThree"];    if(![fileManager fileExistsAtPath:path3]){        [[NSFileManager defaultManager] createDirectoryAtPath:path3 withIntermediateDirectories:YES attributes:nil error:nil];    }}-(void)createCachesDirectory{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);    path4 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryFour"];    if(![fileManager fileExistsAtPath:path4]){        [[NSFileManager defaultManager] createDirectoryAtPath:path4 withIntermediateDirectories:YES attributes:nil error:nil];    }}

但是，我们还需要配置下 info.plist文件

Supports opening documents in place    =     YESApplication supports iTunes file sharing  =  YES

四个按钮对应的文件下载目录如上图所示。 。。。。

四个文件都已经下载下来。。。。。 我们去 Files文件夹中看下 。。。。

我们发现，只有第二个目录才能在Files中看得见 。。。。。

 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    path2 = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"directoryTwo"];

也就是只有这个目录下的文件或者文档才能被系统Files发现，这是时候我们打开iTunes，你的手机需要连接iTunes

我们能通过iTunes管理手机APP上面的东西 。。。 我们往里面传一个文件看看 。。。

我们往里面上传了一个url.txt的文件， 我们打开 手机的文件看下

说明了一切 。。。。。。。。 这就是ios11 关于文件夹共享的总结