iPhone開發教程之相關的plist檔案

建立.plist檔案并存儲

　　NSString *errorDesc; //用來存放錯誤資訊

　　NSMutableDictionary *rootObj = [NSMutableDictionary dictionaryWithCapacity:4]; //NSDictionary, NSData等檔案可以直接轉化為plist檔案

　　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

　　}

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

　　這個plistData為建立好的plist檔案，用其writeToFile方法就可以寫成檔案。下面是代碼：

　　/*得到移動裝置上的檔案存放位置*/

　　NSString *documentsPath = [self getDocumentsDirectory];

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

　　/*存檔案*/

　　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 讀取plist檔案并轉化為NSDictionary

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

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

　　5 讀取一般性文檔檔案

　　NSString *tmp;

　　NSArray *lines; /*将檔案轉化為一行一行的*/

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

　　componentsSeparatedByString:@"\n"];

　　NSEnumerator *nse = [lines objectEnumerator];

　　// 讀取<>裡的内容

　　while(tmp = [nse nextObject]) {

　　NSString *stringBetweenBrackets = nil;

　　NSScanner *scanner = [NSScanner scannerWithString:tmp];

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

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