如何将.plist文件中的数据结构读入NSArray
如何将.plist文件中的数据结构读入NSArray
提问于 2009-04-14 21:52:47
我使用以下代码手动创建了一个数据结构：
NSDictionary* league1 = [[NSDictionary alloc] initWithObjectsAndKeys: @"Barclays Premier League", @"name",
@"Premier League", @"shortname",
@"101", @"id", nil];
NSDictionary* league2 = [[NSDictionary alloc] initWithObjectsAndKeys: @"Coca-Cola Championship", @"name",
@"Championship", @"shortname",
@"102", @"id", nil];
NSDictionary* league3 = [[NSDictionary alloc] initWithObjectsAndKeys: @"Scottish Premier League", @"name",
@"SPL", @"shortname",
@"201", @"id", nil];
NSDictionary* league4 = [[NSDictionary alloc] initWithObjectsAndKeys: @"Champions League", @"name",
@"UCL", @"shortname",
@"501", @"id", nil];
contentArray = [[NSArray alloc] initWithObjects:
[[NSDictionary alloc] initWithObjectsAndKeys: @"English", @"category", [[NSArray alloc] initWithObjects: league1, league2, nil], @"leagues", nil],
[[NSDictionary alloc] initWithObjectsAndKeys: @"Scottish", @"category", [[NSArray alloc] initWithObjects: league3, nil], @"leagues", nil],
[[NSDictionary alloc] initWithObjectsAndKeys: @"Tournaments", @"category", [[NSArray alloc] initWithObjects: league4, nil], @"leagues", nil],
nil];
[league1 release];
[league2 release];
[league3 release];
[league4 release];但是，我认为如果从文件中读取会更好。所以我创建了leagues.plist文件，它的结构如下：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
<dict>
<key>category</key>
<string>English</string>
<key>leagues</key>
<array>
<dict>
<key>name</key>
<string>Barclays Premier League</string>
<key>shortname</key>
<string>Premier League</string>
<key>id</key>
<string>101</string>
</dict>
<dict>
<key>name</key>
<string>Coca-Cola Championship</string>
<key>shortname</key>
<string>Championship</string>
<key>id</key>
<string>102</string>
</dict>
</array>
</dict>
<dict>
<key>category</key>
<string>Scottish</string>
<key>leagues</key>
<array>
<dict>
<key>name</key>
<string>Scottish Premier League</string>
<key>shortname</key>
<string>SPL</string>
<key>id</key>
<string>201</string>
</dict>
</array>
</dict>
<dict>
<key>category</key>
<string>Tournaments</string>
<key>leagues</key>
<array>
<dict>
<key>name</key>
<string>Champions League</string>
<key>shortname</key>
<string>UCL</string>
<key>id</key>
<string>501</string>
</dict>
</array>
</dict>
</array>
</plist>如何读取此文件。我试过各种方法，但都不管用。我甚至不知道我是否在正确的位置查找文件。作为参考，我尝试了以下方法：
NSString* errorDesc = nil;
NSPropertyListFormat format;
NSString* plistPath = [[NSBundle mainBundle] pathForResource:@"league" ofType:@"plist"];
NSData* plistXML = [[NSFileManager defaultManager] contentsAtPath:plistPath];
contentArray = (NSArray*)[NSPropertyListSerialization
propertyListFromData:plistXML
mutabilityOption:NSPropertyListMutableContainersAndLeaves
format:&format
errorDescription:&errorDesc];
if (!contentArray) {
NSLog(errorDesc);
[errorDesc release];
}或
NSString* plistPath = [[NSBundle mainBundle] pathForResource:@"league" ofType:@"plist"];
contentArray = [NSArray arrayWithContentsOfFile:plistPath];或
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *fooPath = [documentsPath stringByAppendingPathComponent:@"leagues.plist"];
NSLog(fooPath);
contentArray = [NSArray arrayWithContentsOfFile:fooPath];
NSLog(@"%@",contentArray);这终于把我逼疯了。请帮帮我！
非常感谢你
回答 7
Stack Overflow用户
回答已采纳
发布于 2009-04-15 05:56:17
NSString* plistPath = [[NSBundle mainBundle] pathForResource:@"league" ofType:@"plist"];
contentDict = [NSDictionary dictionaryWithContentsOfFile:plistPath];这个答案是正确的--你确定你的文件在应用程序中吗？您是否将其添加到您的项目中，并检查是否将其复制到您的应用程序包中？如果没有，可能是文件没有添加到您正在构建的目标中，这很容易犯错误，特别是在您有多个目标的情况下。
Stack Overflow用户
发布于 2011-06-07 20:45:23
如果资源在项目的plist文件夹中，请使用此代码。
NSString *sourcePath = [[NSBundle mainBundle] pathForResource:@"league" ofType:@"plist"];
contentArray = [NSArray arrayWithContentsOfFile:sourcePath];如果plist在应用程序的文档目录中，请使用以下命令：
NSArray *paths =
NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *basePath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
NSString *plistName = @"league";
NSString *finalPath = [basePath stringByAppendingPathComponent:
[NSString stringWithFormat: @"%@.plist", plistName]];
contentArray = [NSArray arrayWithContentsOfFile:finalPath];Stack Overflow用户
发布于 2012-05-17 21:56:48
我遇到了这个问题，但它不起作用，因为我将来自pList的结果放入一个数组中，该数组应该是一个字典，即
NSString* plistPath = [[NSBundle mainBundle] pathForResource:@"VehicleDetailItems" ofType:@"plist"];
NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:plistPath];页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/749504
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