UIViewの「認識できないセレクタをインスタンスに送る」取得

Question

UIViewクラスの実装をビューコントローラにキャストしようとしました。しかし、私のクラスのメソッドを呼び出そうとすると、 "インスタンスに送られた認識できないセレクター"がスローされます。ここで

は、私は私のヘッダファイルでやっているものです：私は取得しています上記のように

#import "GameView.h" 

@implementation GameViewController 


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

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    //'timerLoop' function 
    gameLoop = [NSTimer scheduledTimerWithTimeInterval: 0.025 target:self selector:@selector(timerLoop:) userInfo:nil repeats:YES]; 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view from its nib. 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
    // e.g. self.myOutlet = nil; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    // Return YES for supported orientations 
    return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 

- (void) timerLoop:(NSTimer *)timerObj { 
//so this is where I am getting the error 
    [(GameView *)self.view updateLander]; 
    [self.view setNeedsDisplay]; 
} 
- (IBAction)quitGame:(id)sender { 
    [self dismissModalViewControllerAnimated:true]; 
} 

- (IBAction)rotateLeft:(id)sender { 
    [(GameView *)self.view rotateLeft:sender]; 
} 

- (IBAction)rotateRight:(id)sender { 
    [(GameView *)self.view rotateRight:sender]; 
} 

- (IBAction)thrust:(id)sender { 
    [(GameView *)self.view thrustEngine:sender]; 
} 
@end 

@implementation GameView 

@synthesize lander_nothrust; 

-(id)initWithCoder:(NSCoder *)aDecoder{ 
    if(self == [super initWithCoder:aDecoder]){ 

     //initialize sprites 
     NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"lander" ofType:@"tiff"]; 
     self.lander_nothrust = [UIImage new]; 
     self.lander_nothrust = [UIImage imageWithContentsOfFile:imagePath]; 

     [self newGame]; 
    } 
    return self; 
} 



-(void) newGame{ 
    gstate = READY; 
    level = EASY; 
    thrusters = THRUSTERS_OFF; 
    fuel = FUEL_INITIAL; 
    loc_x = self.frame.size.width/2; 
    loc_y = self.frame.size.height/2; 

    // Set the game as RUNNING 
    gstate = RUNNING; 
} 

-(void)updateLander{ 


} 

// rotateLeft - rotate the lander left 
- (void)rotateLeft:(id)sender 
{ 
    // Do Something 
} 

// rotateRight - rotate the lander right 
- (void)rotateRight:(id)sender 
{ 
    // Do Something 
} 

// thrustEngine - fire the thruster on the engine 
- (void)thrustEngine:(id)sender 
{ 
    // Do Something 
} 

-(void)drawRect:(CGRect)rect{ 
    if(gstate != RUNNING){ 
     return; 
    } 
    [self.lander_nothrust drawAtPoint:CGPointMake(loc_x, loc_y)]; 
    self.backgroundColor = [UIColor redColor]; 
} 
@end 

：今

#import <UIKit/UIKit.h> 

@interface GameViewController : UIViewController{ 

    NSTimer *gameLoop; 

} 

- (IBAction)quitGame:(id)sender; 
- (IBAction)rotateLeft:(id)sender; 
- (IBAction)rotateRight:(id)sender; 
- (IBAction)thrust:(id)sender; 


@end 

typedef enum { NOTREADY, READY, RUNNING, WON, LOST, PAUSED } GameState; 
typedef enum { EASY, MEDIUM, HARD } GameDifficulty; 
typedef enum { THRUSTERS_ON, THRUSTERS_OFF } ThrusterState; 

// Declaration of other constants used to manage the physics 
static const int FUEL_INITIAL = 200; 
static const int FUEL_MAX = 200; 
static const int FUEL_BURN = 10; 
static const int MAX_INIT = 30; 
static const int MAX_SPEED = 120; 
static const int ACCELERATION_DOWN = 35; 
static const int ACCELERATION_UP = 80; 
static const double GRAVITY = 9.8; 

@interface GameView : UIView { 
@private UIImage   *plander_thrust; 
@private UIImage   *plander_nothrust; 
@private UIImage   *plander_crashed; 

    // Other game member variables 
@private GameState   gstate; 
@private GameDifficulty  level; 
@private ThrusterState  thrusters; 
@private int    fuel; 
@private int    speed_x; 
@private int    speed_y; 
@private double    rotation; 

    // Define our lander’s X and Y on-screen coordinates 
@private int loc_x; 
@private int loc_y; 
} 

@property (nonatomic, retain) UIImage *lander_nothrust; 

// Declare our class methods 
- (void) newGame; 
- (void) updateLander; 
- (void) rotateLeft:(id)sender; 
- (void) rotateRight:(id)sender; 
- (void) thrustEngine:(id)sender; 

@end 

、ここで私は私の.mファイルでやっているものですこのコード行でエラー：

[(GameView *)self.view updateLander]; 

私は周りを見回していると私は、私は方法のTHAを呼び出していますので、それがあることを聞いておきます私のオブジェクトには存在しませんが、なぜオブジェクトの実装が見えないのか分かりません。私は、私のクラスとして "ゲームビュー"へのアイデンティティインスペクタのUIViewのカスタムクラスを設定しました。

Answer 1

問題はあなたのペン先にあります。ビューのカスタムクラスをGameViewに設定していないか、またはファイル所有者のviewコンセントをそのビューに接続していないかのいずれかです。