Finding maximum numeric value in NSArray
IphoneObjective CNsarrayIphone Problem Overview
I have an NSArray of NSNumbers and want to find the maximum value in the array. Is there any built in functionality for doing so? I am using iOS4 GM if that makes any difference.
Iphone Solutions
Solution 1 - Iphone
The KVC approach looks like this:
int max = [[numbers valueForKeyPath:@"@max.intValue"] intValue];
or
NSNumber * max = [numbers valueForKeyPath:@"@max.intValue"];
with numbers as an NSArray
Solution 2 - Iphone
NSArray * test= @[@3, @67, @23, @67, @67];
int maximumValue = [[test valueForKeyPath: @"@max.self"] intValue];
NSLog(@" MaximumValue = %d", maximumValue);
// Maximum = 67
Solution 3 - Iphone
Here is the swift version
let maxValue = (numbers.value(forKeyPath: "@max.self") as! Double)
Solution 4 - Iphone
Hope will helpful to you.
NSArray * arrayOfBarGraphValues = @[@65, @45, @47 ,@87 , @46, @66 ,@77 ,@47 ,@79 ,@78 ,@87 ,@78 ,@87 ];
int maxOfBarGraphValues = [[arrayOfBarGraphValues valueForKeyPath: @"@max.self"] intValue];
NSLog(@" MaximumValue Of BarGraph = %d", maxOfBarGraphValues);