[Code Note] Some functions used to judge the iphone, take note of the iphone

[Code Note] Some functions used to judge the iphone, take note of the iphone

Code:

#import "RootViewController.h"

// To determine the model of the phone-(NSString *) deviceString add a header file
#import "sys / utsname.h"

@interface RootViewController ()

@end

@implementation RootViewController

-(id) initWithNibName: (NSString *) nibNameOrNil bundle: (NSBundle *) nibBundleOrNil
{
    self = [super initWithNibName: nibNameOrNil bundle: nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

-(void) viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    NSLog (@ "---- systemVersion ---% @", [self systemVersion]);
    
    if ([self isIphone5]) {
        NSLog (@ "---- is Iphone5 ---");
    } else {
        NSLog (@ "---- not a Iphone5 ---");
    }
    
    NSLog (@ "---- deviceString ---% @", [self deviceString]);
    
    NSLog (@ "--- getDeviceModel ---% @-", [self getDeviceModel]);
}





#pragma -mark-System version judgment (that is, iOS7.0, iOS6.0 judgment) Output: 7.1
-(NSString *) systemVersion {
    return [[UIDevice currentDevice] systemVersion];
}
#pragma -mark-judge whether the phone is iphone5 (that is, judge on iphon4, iphone5)
-(BOOL) isIphone5
{
    if ([UIScreen instancesRespondToSelector: @selector (currentMode)]) {
        return CGSizeEqualToSize (CGSizeMake (640, 1136), [[UIScreen mainScreen] currentMode] .size);
    }
    else
    {
        return NO;
    }
}

#pragma -mark-determine the short version of the phone model
// Requires #import "sys / utsname.h"
-(NSString *) getDeviceModel {
    struct utsname u;
    uname (& u);
    NSString * modelVersion = [NSString stringWithFormat: @ "% s", u.machine];
    return modelVersion;
}

#pragma -mark-Determine the detailed version of the phone model
// Determine the model of the phone
// Requires #import "sys / utsname.h"
-(NSString *) deviceString
{
    
    struct utsname systemInfo;
    uname (& systemInfo);
    NSString * deviceString = [NSString stringWithCString: systemInfo.machine encoding: NSUTF8StringEncoding];
    
    if ([deviceString isEqualToString: @ "iPhone1,1"]) return @ "iPhone 1G";
    if ([deviceString isEqualToString: @ "iPhone1,2"]) return @ "iPhone 3G";
    if ([deviceString isEqualToString: @ "iPhone2,1"]) return @ "iPhone 3GS";
    if ([deviceString isEqualToString: @ "iPhone3,1"]) return @ "iPhone 4";
    if ([deviceString isEqualToString: @ "iPhone4,1"]) return @ "iPhone 4S";
    if ([deviceString isEqualToString: @ "iPhone5,2"]) return @ "iPhone 5";
    if ([deviceString isEqualToString: @ "iPhone3,2"]) return @ "Verizon iPhone 4";
    if ([deviceString isEqualToString: @ "iPod1,1"]) return @ "iPod Touch 1G";
    if ([deviceString isEqualToString: @ "iPod2,1"]) return @ "iPod Touch 2G";
    if ([deviceString isEqualToString: @ "iPod3,1"]) return @ "iPod Touch 3G";
    if ([deviceString isEqualToString: @ "iPod4,1"]) return @ "iPod Touch 4G";
    if ([deviceString isEqualToString: @ "iPad1,1"]) return @ "iPad";
    if ([deviceString isEqualToString: @ "iPad2,1"]) return @ "iPad 2 (WiFi)";
    if ([deviceString isEqualToString: @ "iPad2,2"]) return @ "iPad 2 (GSM)";
    if ([deviceString isEqualToString: @ "iPad2,3"]) return @ "iPad 2 (CDMA)";
    if ([deviceString isEqualToString: @ "i386"]) return @ "Simulator";
    if ([deviceString isEqualToString: @ "x86_64"]) return @ "Simulator";
    NSLog (@ "NOTE: Unknown device type:% @", deviceString);
    return deviceString;
}

-(void) didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
 

Output:

2015-10-15 14: 09: 05.486 Some functions for judging iphone phones [3478: 155689] ---- systemVersion --- 8.1
2015-10-15 14: 09: 05.487 Some functions for judging iphone phones [3478: 155689] ---- is Iphone5 ---
2015-10-15 14: 09: 05.487 Some functions for judging iphone phones [3478: 155689] ---- deviceString --- Simulator
2015-10-15 14: 09: 05.487 Some functions for judging iphone phones [3478: 155689] --- getDeviceModel --- x86_64--