读写 .plist 文件的代码例子

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=[pathstringByAppendingPathComponent:@"personal.plist"];

[arraywriteToFile:filename  atomically:YES];
[array release];

读操作

NSArray*paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
NSString*path=[paths    objectAtIndex:0];
NSString *filename=[pathstringByAppendingPathComponent:@"personal.plist"];

NSMutableArray *array=[[NSMutableArray alloc]initWithContentsOfFile:filename];

txt1.text=[array objectAtIndex:0];
txt2.text=[[NSString alloc] initWithFormat:@”%d”,[[arrayobjectAtIndex:1]intValue]];
txt3.text=[[NSString alloc] initWithFormat:@”%d”,[[arrayobjectAtIndex:2]intValue]];

[array release];

 

 

 或者：

1. NSBundle *bundle = [NSBundle mainBundle];//取得mainBundle
   
2. NSString *plistPath = [bundle pathForResource:@"文件名"ofType:@"plist"]; //取得文件路径
   

// 或可以写成

NSString *plistPath = [[NSBundle mainBundle]pathForResource:@"文件名" ofType:@"plist"];

//读取到一个NSDictionary

NSDictionary *dictionary = [[NSDictionary alloc]initWithContentsOfFile:plistPath];

//读取到一个NSArray

NSArray *array = [[NSArray alloc]initWithContentsOfFile:plistPath];