簡單物件寫入檔案

//簡單物件寫入檔案

//僅支援nsstring,nsarray,nsdictionary,nsdata

//獲取document路徑

// nsstring

nsstring * documentpath = [nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes) lastobject];

nsstring * str = @"i love my ios teacher!";

[str writetofile:path atomically:yes encoding:nsutf8stringencoding error:nil];

nslog(@"%@",path);

//讀取檔案

nsstring * content = [nsstring stringwithcontentsoffile:path encoding:nsutf8stringencoding error:nil];

nslog(@"%@",content);

//nsarray

nsarray * array = @[@"i",@"love",@"my",@"ios",@"teacher"];

[array writetofile:path atomically:yes];

//讀取檔案

nsarray * array2 = [nsarray arraywithcontentsoffile:path];

nslog(@"%@",array2);

nsarray * array3 = [[nsarray alloc] initwithcontentsoffile:path];

nslog(@"%@",array3);

//字典

nsstring * cachepath = [nssearchpathfordirectoriesindomains(nscachesdirectory, nsuserdomainmask, yes) lastobject];

nsdictionary * dic = @;

[dic writetofile:path2 atomically:yes];

nsdictionary * dic2 = [nsdictionary dictionarywithcontentsoffile:path2];

nslog(@"%@",dic2);

//nsdata

uiimage * image = [uiimage imagenamed:@"1"];

//    uiimageview * im**iew = [[uiimageview alloc] initwithimage:image];

//    [self.view addsubview:im**iew];

//    nslog(@"%@",im**iew);

nsstring * temppath = nstemporarydirectory();

//將轉化成資料物件

nsdata * data = uiimagepngrepresentation(image);

//寫入檔案

[data writetofile:temppath atomically:yes];

nslog(@"%@",temppath);

//讀取檔案

nsdata * _data = [nsdata datawithcontentsoffile:temppath];

uiimage * _image = [uiimage imagewithdata:_data];

nslog(@"%@",_image);

//    nsuserdefaults * usr = [nsuserdefaults standarduserdefaults];

//    [usr setobject:@"tao" forkey:@"master"];

//    [self test];

//nsfilemanager

nsfilemanager * file = [[nsfilemanager alloc] init];

nsfilemanager * file1 = [nsfilemanager defaultmanager];

nsstring * homepath = nshomedirectory();

[file createdirectoryatpath:homepath withintermediatedirectories:yes attributes:nil error:nil];

//新建資料夾

[file createdirectoryatpath:homepath2 withintermediatedirectories:yes attributes:nil error:nil];

//刪除資料夾

[file removeitematpath:homepath2 error:nil];

//拷貝資料夾

//    [file copyitematpath:homepath topath:homepath2 error:nil];//(死迴圈了)

//移動

[file moveitematpath:homepath2 topath:homepath error:nil];

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