iOS plist文件创建

iOS中plist的创建，数据写入与读取功能创建一个test.plist文件，textInput作为输入，displayLabel作为显示，有一个按钮来触发保持程序triggerStorage；

-(void)triggerStorage

{

    displayLabel.text = textInput.text;

    

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

    NSString *path=[paths    objectAtIndex:0];  

    NSString *filename=[path stringByAppendingPathComponent:@"test.plist"];   //获取路径

    

    NSDictionary* dic2 = [NSDictionary dictionaryWithContentsOfFile:filename];  //读取数据

    NSLog(@"dic2 is:%@",dic2); 

    

    //创建一个dic，写到plist文件里

    NSDictionary* dic = [NSDictionary dictionaryWithObjectsAndKeys:displayLabel.text,@"IP",nil]; //写入数据

    [dic writeToFile:filename atomically:YES];   

 

}

 

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad

{

    NSMutableArray *resultData; 

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

    NSString *path=[paths objectAtIndex:0];

    NSLog(@"path = %@",path);   

    NSString *filename=[path stringByAppendingPathComponent:@"test.plist"]; 

  

    //读文件

    NSDictionary* dic2 = [NSDictionary dictionaryWithContentsOfFile:filename];

    NSLog(@"dic is:%@",dic2);    

    if(dic2 == nil)

    {

        //1. 创建一个plist文件 

        NSFileManager* fm = [NSFileManager defaultManager];

        [fm createFileAtPath:filename contents:nil attributes:nil];        

    }

    else

    {

        resultData=[dic2 objectForKey:@"IP"]; 

        if([dic2 count] > 0)

        {

            displayLabel.text = resultData;

        }

        else

        {

            displayLabel.text = @" ";

        }

    }

    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc]   //按钮的初始化及触发条件设置

                                               initWithTitle:@"保存" 

                                               style:UIBarButtonItemStylePlain 

                                               target:self 

                                               action:@selector(triggerStorage)] autorelease];    

    [super viewDidLoad];

}

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参考代码：

plist 文件读写

    //1. 创建一个plist文件

    NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);  www.2cto.com

    NSString *path=[paths    objectAtIndex:0];

    NSLog(@"path = %@",path);

    NSString *filename=[path stringByAppendingPathComponent:@"test.plist"];    

    NSFileManager* fm = [NSFileManager defaultManager];

    [fm createFileAtPath:filename contents:nil attributes:nil];        

    //NSDictionary* dic = [NSDictionary dictionaryWithContentsOfFile:plistPath];

    

    //创建一个dic，写到plist文件里

    NSDictionary* dic = [NSDictionary dictionaryWithObjectsAndKeys:@"sina",@"1",@"163",@"2",nil];

    [dic writeToFile:filename atomically:YES];

    

    //读文件

    NSDictionary* dic2 = [NSDictionary dictionaryWithContentsOfFile:filename];

    NSLog(@"dic is:%@",dic2);

 

相关文章：

http://blog.csdn.net/totogo2010/article/details/7634185

http://www.2cto.com/kf/201302/188061.html