我正在创建一个iPhone应用程序,其中我得到所有国家的名称,标志和参赛者姓名.我想保存该数据在.plist而不是sqlite服务器.我不知道如何在DocumentDirectory中创建一个plist文件并保存数据.
请有人建议我如何保存plist文件中的数据.
解决方法
我将通过截图进行一步一步的处理.请遵循这一点,你会得到你的答案.
步骤1
第2步
步骤：3
保存按钮上的数据操作：
// Take 3 array for save the data .....
-(IBAction)save_Action:(id)sender
{
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory,NSUserDomainMask,YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];
[self.nameArr addObject:self.nameField.text];
[self.countryArr addObject:self.countryField.text];
[self.imageArr addObject:@"image.png"];
NSDictionary *plistDict = [[NSDictionary alloc] initWithObjects: [NSArray arrayWithObjects: self.nameArr,self.countryArr,self.imageArr,nil] forKeys:[NSArray arrayWithObjects: @"Name",@"Country",@"Image",nil]];
NSString *error = nil;
NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:plistDict format:NSPropertyListXMLFormat_v1_0 errorDescription:&error];
if(plistData)
{
[plistData writeToFile:plistPath atomically:YES];
alertLbl.text = @"Data saved sucessfully";
}
else
{
alertLbl.text = @"Data not saved";
}
}
// Data is saved in your plist and plist is saved in DocumentDirectory
步骤4
从plist检索数据文件：
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory,YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];
if (![[NSFileManager defaultManager] fileExistsAtPath:plistPath])
{
plistPath = [[NSBundle mainBundle] pathForResource:@"manuallyData" ofType:@"plist"];
}
NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
self.nameArr = [dict objectForKey:@"Name"];
self.countryArr = [dict objectForKey:@"Country"];
步骤：5
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory,YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];
NSMutableDictionary *dictionary = [NSMutableDictionary dictionaryWithContentsOfFile:(NSString *)plistPath];
self.nameArr = [dictionary objectForKey:@"Name"];
self.countryArr = [dictionary objectForKey:@"Country"];
[self.nameArr removeObjectAtIndex:indexPath.row];
[self.countryArr removeObjectAtIndex:indexPath.row];
[dictionary writeToFile:plistPath atomically:YES];
步骤：6
更新您的数据更新单击操作：
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory,YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *plistPath = [documentsPath stringByAppendingPathComponent:@"manuallyData.plist"];
if (![[NSFileManager defaultManager] fileExistsAtPath:plistPath])
{
plistPath = [[NSBundle mainBundle] pathForResource:@"manuallyData" ofType:@"plist"];
}
self.plistDic = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
[[self.plistDic objectForKey:@"Name"] removeObjectAtIndex:self.indexPath];
[[self.plistDic objectForKey:@"Country"] removeObjectAtIndex:self.indexPath];
[[self.plistDic objectForKey:@"Image"] removeObjectAtIndex:self.indexPath];
[[self.plistDic objectForKey:@"Name"] insertObject:nameField.text atIndex:self.indexPath];
[[self.plistDic objectForKey:@"Country"] insertObject:countryField.text atIndex:self.indexPath];
[[self.plistDic objectForKey:@"Image"] insertObject:@"dhoni.jpg" atIndex:self.indexPath];
[self.plistDic writeToFile:plistPath atomically:YES];
