iphone中存入文件的方法

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p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3e207e}p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo}p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px}p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703fa6}p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #cc2d24}span.s1 {color: #703fa6}span.s2 {color: #000000}span.s3 {color: #b72e9f}span.s4 {color: #3e207e}span.s5 {color: #2f30d3}span.s6 {color: #cc2d24}span.s7 {color: #528186}

由于iPhone不能写入mainBundle，于是只能用下面的代码进行读写。

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *plistFilePath = [documentsDirectory stringByAppendingPathComponent: @"FriendList.plist"];

NSData *xmlData;

NSString *error;

xmlData = [NSPropertyListSerialization dataFromPropertyList:friendsNameList

format:NSPropertyListXMLFormat_v1_0

errorDescription:&error];

if(xmlData) {

NSLog(@"No error creating XML data.");

[xmlData writeToFile:plistFilePath atomically:YES];

}

else {

NSLog(@"Error: %@",error);

[error release];

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo}p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703fa6}p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px}p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3e207e}p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #0b831b}p.p6 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #cc2d24}span.s1 {color: #703fa6}span.s2 {color: #b72e9f}span.s3 {color: #000000}span.s4 {color: #3e207e}span.s5 {color: #2f30d3}span.s6 {color: #cc2d24}

NSString *errorDesc = nil;

NSPropertyListFormat format;

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *plistFilePath = [documentsDirectory stringByAppendingPathComponent: @"FriendList.plist"];

NSData *plistXML = [[NSFileManager defaultManager] contentsAtPath:plistFilePath];

NSMutableArray *plistArray = (NSMutableArray *)[NSPropertyListSerialization

propertyListFromData:plistXML

mutabilityOption:NSPropertyListMutableContainersAndLeaves

format:&format

errorDescription:&errorDesc];

if (!plistArray) {

NSLog(@"Error reading plist: %@, format: %d", errorDesc, format);

}