iOS简单排序--字母排序、NSDictionary排序
NSArray *oldArray = @[@"bac",@"bzd",@"azc",@"azz"];
NSArray *newArray = [oldArray sortedArrayUsingSelector:@selector(compare:)];
NSLog(@"new array = %@",newArray);
// NSDictionary排序
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setObject:@"1" forKey:@"device_uuid"];
[dict setObject:@"2" forKey:@"app_type"];
[dict setObject:@"3" forKey:@"app_install_version"];
[dict setObject:@"4" forKey:@"token"];
[dict setObject:@"5" forKey:@"interface_type"];
[dict setObject:@"6" forKey:@"timestamp"];
[dict setObject:@"7" forKey:@"key"];
NSArray *keys = [dict allKeys];
NSArray *sortedArray = [keys sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2){
return [obj1 compare:obj2 options:NSNumericSearch];
}];
NSLog(@"sortedArray----%@",sortedArray);
NSMutableArray * valueArray = [NSMutableArray array];
for (NSString *keyString in sortedArray) {
NSLog(@"[dict objectForKey:categoryId] === %@",[dict objectForKey:keyString]);
NSString * valueString = [dict objectForKey:keyString];
[valueArray addObject:valueString];
}
NSString *tempString = [valueArray componentsJoinedByString:@","];
NSLog(@"tempString---%@",tempString);
