ios - plistからデータを取得する

Question

私はplistを持っていて、その中に配列と辞書要素のセットがありますか？plistから配列にデータを取得するにはどうすればよいですか？

1つの配列でカテゴリ名を取得するにはどうすればよいですか？

Answer 1

Objective-C

// Read plist from bundle and get Root Dictionary out of it
NSDictionary *dictRoot = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"data" ofType:@"plist"]];

// Your dictionary contains an array of dictionary
// Now pull an Array out of it.
NSArray *arrayList = [NSArray arrayWithArray:[dictRoot objectForKey:@"catlist"]];

// Now a loop through Array to fetch single Item from catList which is Dictionary
[arrayList enumerateObjectsUsingBlock:^(id obj, NSUInteger index, BOOL *stop) {
    // Fetch Single Item
    // Here obj will return a dictionary
    NSLog(@"Category name : %@",[obj valueForKey:@"category_name"]);
    NSLog(@"Category id   : %@",[obj valueForKey:@"cid"]);
}];

迅速

// Read plist from bundle and get Root Dictionary out of it
var dictRoot: [NSObject : AnyObject] = [NSObject : AnyObject].dictionaryWithContentsOfFile(NSBundle.mainBundle().pathForResource("data", ofType: "plist"))
// Your dictionary contains an array of dictionary
// Now pull an Array out of it.
var arrayList: [AnyObject] = [AnyObject].arrayWithArray((dictRoot["catlist"] as! String))
// Now a loop through Array to fetch single Item from catList which is Dictionary
arrayList.enumerateObjectsUsingBlock({(obj: AnyObject, index: UInt, stop: Bool) -> Void in
    // Fetch Single Item
    // Here obj will return a dictionary
    NSLog("Category name : %@", obj["category_name"])
    NSLog("Category id   : %@", obj["cid"])
})

Swift2.0コード

var myDict: NSDictionary?
    if let path = NSBundle.mainBundle().pathForResource("data", ofType: "plist") {
        myDict = NSDictionary(contentsOfFile: path)
    }
    let arrayList:Array = myDict?.valueForKey("catlist") as! Array<NSDictionary>
    print(arrayList)

    // Enumerating through the list
    for item in arrayList  {
        print(item)

    }

Swift 3.0

// Read plist from bundle and get Root Dictionary out of it
var dictRoot: NSDictionary?
if let path = Bundle.main.path(forResource: "data", ofType: "plist") {
    dictRoot = NSDictionary(contentsOfFile: path)
}

if let dict = dictRoot
{
    // Your dictionary contains an array of dictionary
    // Now pull an Array out of it.
    var arrayList:[NSDictionary] = dictRoot?["catlist"] as! Array
    // Now a loop through Array to fetch single Item from catList which is Dictionary
    arrayList.forEach({ (dict) in
        print("Category Name \(dict["category_name"]!)")
        print("Category Id \(dict["cid"])")
    })
}

Answer 2

1. バンドルまたは任意のディレクトリからファイルパスを取得します
2. plistから取得した辞書から配列を取得します

3. 辞書を配列に格納する

   NSString *plistFilePath  = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"test.plist"];
   
   NSDictionary *list = [NSDictionary dictionaryWithContentsOfFile:plistFilePath];
   NSLog(@"%@",list);
   NSArray      *data = [list objectForKey:@"catlist"];
   for(int i=0; i< [data count]; i++)
   {
       NSMutableDictionary *details=[data objectAtIndex:i];
       NSLog(@"%@",[details objectForKey:@"category_name"]);
       NSLog(@"%@",[details objectForKey:@"cid"]);
   
   }
   

Answer 3

PropertyListDecoderを使用して、plistファイルをオブジェクトに直接デコードできます。詳細については、この回答を参照してくださいhttps://stackoverflow.com/a/60389142/5662893

Answer 4

Targetsに.plistファイルを追加してください=>バンドルリソースをコピー してください