Question

I m 摘录一个清单中的一些数据:

<dict>
<key>Feb 7, 2000</key>
<array>
    <string>7</string>
    <string>8</string>
</array>
<key>Jan 27, 2001</key>
<array>
    <string>8</string>
    <string>7</string>
</array>

并使用以下代码,将数据输入国库:

  NSString * myString = [NSString stringWithFormat:@"%@",self.data];

    myLabel.text = myString;

产出载于<代码>(7,8)。

任何人都知道如何去除母体和 com。并且将价值观分开,以便我能够展示如下内容:<条码>第一:7秒:8。

Answer 1

例:

<dict>
<key>Feb 7, 2000</key>
<array>
    <string>7</string>
    <string>8</string>
</array>
<key>Jan 27, 2001</key>
<array>
    <string>8</string>
    <string>7</string>
</array>
</dict>

法典:

NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithContentsOfFile:path]; 

for(id key in dict) {
    NSLog(@"First:%@ Second:%@", [[dict objectForKey:key] objectAtIndex:0],  [[dict objectForKey:key] objectAtIndex:1]);
}

产出:

First:7 Second:8
First:8 Second:7

EDIT (response to comment)

First you need to determine the keys within the NSMutableDictionary.
Load the .plist file, loop through and add the keys to an NSMutableArray.

NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithContentsOfFile:path]; 
NSMutableArray *keys = [[NSMutableArray alloc] init];
for(id key in dict) [keys addObject:[NSString stringWithFormat:@"%@",key]];

Make sure the array can be accessed by the UIPickerView.
The UIPickerView should be able to retrieve the keys like this:

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component;
{
    return [keys objectAtIndex:row];
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component;
{
    return [keys count];
}

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;
{
    return 1;
}

最后,更新<条码>IDLabel>。

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
    theLabel.text = [NSString stringWithFormat:@"First:%@ Second:%@", 
                      [[dict objectForKey:[keys objectAtIndex:row]] objectAtIndex:0],  
                      [[dict objectForKey:[keys objectAtIndex:row]] objectAtIndex:1]];
}

http://www.un.org/Depts/DGACM/index_french.htm 现有几行:

Feb 7, 2000
Jan 27, 2001

如选定“Jan 27,2001年”,UILabel:

First:8 Second:7

友情链接