iPhone开发教程之相关的plist文件

创建.plist文件并存储

　　NSString *errorDesc; //用来存放错误信息

　　NSMutableDictionary *rootObj = [NSMutableDictionary dictionaryWithCapacity:4]; //NSDictionary, NSData等文件可以直接转化为plist文件

　　NSDictionary *innerDict;

　　NSString *name;

　　Player *player;

　　NSInteger saveIndex;

　　for(int i = 0; i < [playerArray count]; i++) {

　　player = nil;

　　player = [playerArray objectAtIndex:i];

　　if(player == nil)

　　break;

　　name = player.playerName;// This "Player1" denotes the player name could also be the computer name

　　innerDict = [self getAllNodeInfoToDictionary:player];

　　[rootObj setObject:innerDict forKey:name]; // This "Player1" denotes the person who start this game

　　}

　　player = nil;

　　NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:(id)rootObj format:NSPropertyListXMLFormat_v1_0 errorDescription:&errorDesc];

　　这个plistData为创建好的plist文件，用其writeToFile方法就可以写成文件。下面是代码：

　　/*得到移动设备上的文件存放位置*/

　　NSString *documentsPath = [self getDocumentsDirectory];

　　NSString *savePath = [documentsPath stringByAppendingPathComponent:@"save.plist"];

　　/*存文件*/

　　if (plistData) {

　　[plistData writeToFile:savePath atomically:YES];

　　}

　　else {

　　NSLog(errorDesc);

　　[errorDesc release];

　　}

　　- (NSString *)getDocumentsDirectory {

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

　　return [paths objectAtIndex:0];

　　}

　　4 读取plist文件并转化为NSDictionary

　　NSString *documentsPath = [self getDocumentsDirectory];

　　NSString *fullPath = [documentsPath stringByAppendingPathComponent:@"save.plist"];

　　NSMutableDictionary* plistDict = [[NSMutableDictionary alloc] initWithContentsOfFile:fullPath];

　　5 读取一般性文档文件

　　NSString *tmp;

　　NSArray *lines; /*将文件转化为一行一行的*/

　　lines = [[NSString stringWithContentsOfFile:@"testFileReadLines.txt"]

　　componentsSeparatedByString:@"\n"];

　　NSEnumerator *nse = [lines objectEnumerator];

　　// 读取<>里的内容

　　while(tmp = [nse nextObject]) {

　　NSString *stringBetweenBrackets = nil;

　　NSScanner *scanner = [NSScanner scannerWithString:tmp];

　　[scanner scanUpToString:@"<" intoString:nil];

　　[scanner scanString:@"<" intoString:nil];

　　[scanner scanUpToString:@">" intoString:&stringBetweenBrackets];

　　NSLog([stringBetweenBrackets description]);

　　}