我从服务器获取此类数据（动态更改）：
layers = (
{
maximum = 4;
minimum = 3;
name = "layer 1";
},
{
maximum = 19;
minimum = 8;
name = "layer 1";
},
{
maximum = 1;
minimum = 1;
name = "layer 38";
},
{
maximum = 4;
minimum = 1;
name = "layer 3";
},
{
maximum = 24;
minimum = 15;
name = "layer 3";
}
);
在这种情况下，我在1个数组中有5个对象。每个对象都有名称，最小值和最大值。
代码应该有一个循环，其中包含从最小值到最大值的统计信息。例如，如果最小值为10且最大值为13，则值应为：10,11,12,13。
我想将具有相同名称的对象放在一个对象中。正如我所说，这些数据是动态变化的。它可以有任何随机数据，但是如果有相同的对象，它们将一个接一个地放置，就像这里的“第1层”对象和“第3层“对象。
我想要的最终结果是：
{
name = "layer 1";
values = (
3,
4,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19
);
},
{
name = "layer 38";
values = (
1,
1
);
},
{
name = "layer 3";
values = (
1,
2,
3,
4,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24
);
}
我试图运行的代码是：
layers = [[NSMutableArray alloc]init];
NSMutableArray *layer = [[NSMutableArray alloc]init];
NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
[layers addObject:[mivne_shichva objectAtIndex:0]];
for (int i=0; i<mivne_shichva.count; i++) {
// NSLog(@"i=%d",i)
if ([[[mivne_shichva objectAtIndex:i]valueForKey:@"name"]isEqualToString:[[layers objectAtIndex:i] valueForKey:@"name"]]) {
NSLog(@"EQUALS");
layer = [[NSMutableArray alloc]init];
int minimum = [[[mivne_shichva objectAtIndex:i]valueForKey:@"minimum"]intValue];
int maximum = [[[mivne_shichva objectAtIndex:i]valueForKey:@"maximum"]intValue];
for (int x = minimum; x<=maximum; x++) {
[layer addObject:[NSString stringWithFormat:@"%d",x]];
NSLog(@"%@",layer);
// dic = [[NSMutableDictionary alloc]init];
[dic setValue:[[mivne_shichva objectAtIndex:i]valueForKey:@"name"] forKey:@"name"];
[dic setValue:layer forKey:@"values"];
[layers addObject:dic];
}
}else {
layer = [[NSMutableArray alloc]init];
int minimum = [[[mivne_shichva objectAtIndex:i]valueForKey:@"minimum"]intValue];
int maximum = [[[mivne_shichva objectAtIndex:i]valueForKey:@"maximum"]intValue];
for (int x = minimum; x<=maximum; x++) {
[layer addObject:[NSString stringWithFormat:@"%d",x]];
NSLog(@"%@",layer);
}
NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
[dic setValue:[[mivne_shichva objectAtIndex:i]valueForKey:@"name"] forKey:@"name"];
[dic setValue:layer forKey:@"values"];
[layers addObject:dic];
NSLog(@"NOT EQUALS");
}
}
但我不明白如何使其有效......
感谢您提前获取任何代码并提供帮助！
答案 0 :(得分：1)
您的sortedArrayDict包含key作为Layer＃，value作为一个数组，具有基于相同图层的排序和合并值。
图层类：
@interface Layer : NSObject
@property(strong) NSString *name;
@property(assign) NSInteger minimum;
@property(assign) NSInteger maximum;
@end
#import "AppDelegate.h"
#import "Layer.h"
@implementation AppDelegate
- (id)init
{
self = [super init];
if (self) {
_finalDictionary=[NSMutableDictionary new];
Layer *layer1=[Layer new];
layer1.name=@"Layer 1";
layer1.minimum=3;
layer1.maximum=4;
Layer *layer2=[Layer new];
layer2.name=@"Layer 1";
layer2.minimum=8;
layer2.maximum=19;
Layer *layer3=[Layer new];
layer3.name=@"Layer 38";
layer3.minimum=1;
layer3.maximum=1;
Layer *layer4=[Layer new];
layer4.name=@"Layer 1";
layer4.minimum=2;
layer4.maximum=4;
Layer *layer5=[Layer new];
layer5.name=@"Layer 3";
layer5.minimum=24;
layer5.maximum=15;
_initialArray=[[NSMutableArray alloc]initWithObjects:layer1,layer2,layer3,layer4,layer5, nil];
}
return self;
}
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification{
for (Layer *layer in _initialArray) {
if ([_finalDictionary objectForKey:layer.name]) {
//append array
NSMutableArray *array=[_finalDictionary objectForKey:layer.name];
[array addObject:[NSNumber numberWithInteger:[layer minimum]]];
[array addObject:[NSNumber numberWithInteger:[layer maximum]] ];
}
else{
//add new key
NSMutableArray *array=[NSMutableArray new];
[array addObject:[NSNumber numberWithInteger:[layer minimum]]];
[array addObject:[NSNumber numberWithInteger:[layer maximum]] ];
[_finalDictionary setObject:array forKey:layer.name];
}
}
//sorting
for (int i=0; i<_finalDictionary.count; i++){
NSString *dict=[[_finalDictionary allKeys] objectAtIndex:i];
NSArray *arrayToSort=[_finalDictionary objectForKey:dict];
NSArray *sortedArray=[arrayToSort sortedArrayUsingSelector:@selector(compare:)];
[_finalDictionary setObject:sortedArray forKey:dict];
}
//printing
for (NSDictionary *dict in _finalDictionary) {
NSLog(@"Label: %@",dict);
for (Layer *layer in [_finalDictionary objectForKey:dict]) {
NSLog(@"Value: %@",layer);
}
}
}
输出：
2012-12-20 18:45:32.344 MergeArray[1357:403] Label: Layer 1
2012-12-20 18:45:32.346 MergeArray[1357:403] Value: 2
2012-12-20 18:45:32.347 MergeArray[1357:403] Value: 3
2012-12-20 18:45:32.347 MergeArray[1357:403] Value: 4
2012-12-20 18:45:32.348 MergeArray[1357:403] Value: 4
2012-12-20 18:45:32.349 MergeArray[1357:403] Value: 8
2012-12-20 18:45:32.349 MergeArray[1357:403] Value: 19
2012-12-20 18:45:32.350 MergeArray[1357:403] Label: Layer 38
2012-12-20 18:45:32.350 MergeArray[1357:403] Value: 1
2012-12-20 18:45:32.351 MergeArray[1357:403] Value: 1
2012-12-20 18:45:32.352 MergeArray[1357:403] Label: Layer 3
2012-12-20 18:45:32.360 MergeArray[1357:403] Value: 15
2012-12-20 18:45:32.362 MergeArray[1357:403] Value: 24
答案 1 :(得分：0)
//array 'layers' of sample data
NSArray* layers = @[ @[@19,@8,@"layer 1"] , @[@4,@3,@"layer 1"] , @[@1,@1,@"layer 38"] , @[@4,@1,@"layer 3"] , @[@24,@15,@"layer 3"] ] ;
NSMutableDictionary* results = [NSMutableDictionary new] ;
for ( NSArray* layer in layers ) {
int layerMaximum = [layer[0] intValue] ;
int layerMinimum = [layer[1] intValue] ;
NSString* layerName = layer[2] ;
NSMutableArray* layerValues = [results objectForKey:layerName] ;
if ( ! layerValues ) {
layerValues = [NSMutableArray new] ;
}
for ( int i = layerMinimum ; i <= layerMaximum ; i++ ) {
NSNumber* value = [NSNumber numberWithInt:i] ;
if ( ! [layerValues containsObject:value] ) {
[layerValues addObject:value] ;
}
}
if ( layerMinimum == layerMaximum ) {
[layerValues addObject:[NSNumber numberWithInt:layerMaximum] ] ;
}
[results setObject:layerValues forKey:layerName] ;
}
for ( NSString* layerName in results.allKeys ) {
NSMutableArray* values = [results objectForKey:layerName] ;
NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"intValue" ascending:YES] ;
[values sortUsingDescriptors: @[sortDescriptor] ] ;
[results setObject:values forKey:layerName] ;
}