对plist文件的读写操作

通过读写 .plist 文件，我们可以在 iPhone 里记录或调取数据，下面就是 CocoaChina 会员 “pjk1129” 分享的读写 .plist 文件的代码

以name，phoneNumber，age三个字段为例。 iPhone 在文本框中输入数据，获取后装入数组中，然后把数组写入.plist文件

写操作

NSString *name=[txt1 text]; NSNumber *phoneNumber=[[NSNumber alloc] initWithInt:[[txt2 text] intValue]]; NSNumber *age=[[NSNumber alloc] initWithInt:[[txt3 text] intValue]]; NSMutableArray *array=[[NSMutableArray alloc]init]; [array addObject:name]; [array addObject:phoneNumber]; [array addObject:age]; NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); NSString *path=[paths objectAtIndex:0]; NSString *filename=[path stringByAppendingPathComponent:@"personal.plist"]; [array writeToFile:filename atomically:YES]; [array release];

读操作

NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); NSString *path=[paths objectAtIndex:0]; NSString *filename=[path stringByAppendingPathComponent:@"personal.plist"]; NSMutableArray *array=[[NSMutableArray alloc] initWithContentsOfFile:filename]; txt1.text=[array objectAtIndex:0]; txt2.text=[[NSString alloc] initWithFormat:@"%d",[[array objectAtIndex:1]intValue]]; txt3.text=[[NSString alloc] initWithFormat:@"%d",[[array objectAtIndex:2]intValue]]; [array release];