Question

我们如何检索存储在plist文件中的数组数据。

plist文件和源代码如下所示，

------------------------plist File-------------------------
<?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">
<dict>
    <key>Name</key>
    <string>abcxxx</string>
    <key>Phones</key>
    <array/>
    <key>item1</key>
    <string>121327777</string>
    <key>item2</key>
    <string>333333333</string>
</dict>
</plist>
---------------------------------------------------------



  -(id) init
{


    NSString *errorDesc = nil;
    NSPropertyListFormat format;
    phoneNumbers =[[NSMutableArray alloc]init];
    NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"testfile" ofType:@"plist"];
    NSData *plistXML = [[NSFileManager defaultManager] contentsAtPath:plistPath];

    NSDictionary *temp = (NSDictionary *)[NSPropertyListSerialization
                                          propertyListFromData:plistXML
                                          mutabilityOption:NSPropertyListMutableContainersAndLeaves
                                          format:&format errorDescription:&errorDesc];

    if(!temp){
        NSLog(errorDesc);
        [errorDesc release];
    }
    self.personName = [temp objectForKey:@"Name"];
    self.phoneNumbers = [NSMutableArray arrayWithArray:[temp objectForKey:@"Phones"]];
    NSLog(@"Label executed %@",[phoneNumbers objectAtIndex:0]);

    UILabel *name = [[UILabel alloc]initWithFrame:CGRectMake(-180, 100, 100, 20)];
    name.text = [phoneNumbers objectAtIndex:1];
    [self addChild:name];
    NSLog(@"Label executed %@",name);

Answer 1

您的plist XML看起来有点可疑。你拥有的<array/>标签只是一个独立的标签，我不确定它会做什么有用的。

也许将plist改成这样的东西：

<?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">
<dict>
    <key>Name</key>
    <string>abcxxx</string>
    <key>Phones</key>
    <array>
        <string>121327777</string>
        <string>333333333</string>
    </array>
</dict>
</plist>

我不确定这是否会对您的代码有所帮助。你读过这份文件吗？

http://developer.apple.com/documentation/Cocoa/Conceptual/PropertyLists/Introduction/Introduction.html

Answer 2

您所要做的就是调用NSDictionary的initWithContentsOfFile：方法。例如

NSDictionary *temp = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
self.personName = [temp objectForKey:@"Name"];
self.phoneNumbers = [[temp objectForKey:@"Phones"] mutableCopy];

然而，如上所述，你的plist确实看起来有点可疑，尝试将其更改为Andy White提供的那个。

此致

凯尔

Answer 3

UITextField的框架也很奇怪（取决于自己的框架）CGRectMake(-180, 100, 100, 20)可能在屏幕外。

Answer 4

很可能你根本无法读取plist，只检查你的plist结构，

 NSString *StringsFromPList = [[NSBundle mainBundle] bundlePath];
 NSString *itemPositionPlistLocation = [StringsFromPList stringByAppendingPathComponent:@"Words.plist"];
 _myDictionary= [[NSDictionary alloc] initWithContentsOfFile:itemPositionPlistLocation];
NSArray * items = [_myDictionary objectForKey:@"Root"];


<plist version="1.0">
<dict>
<key>Root</key>
    <array>
        <string>Happy</string>
        <string>Rain</string>
    </array>

希望有所帮助：）

检索存储在plist文件中的数组数据

4 个答案: