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配列に保存され、ランダムに使用して単一のイメージビューに表示される100個の画像がありますswipe gesture.

ダブルタップすると、その特定の画像を に保存したいと思いNSUserDefaultます。誰でもこれを達成するのを手伝ってくれませんか。

私はこれを試しました

randIdx=arc4random()%[FrontsCards count];

NSString *imageName=[FrontsCards objectAtIndex:randIdx];

NSString *fullImageName=[NSString stringWithFormat:@"%@",imageName];

int padding=0;

CGRect imageViewFrame=CGRectMake(scrollView.frame.size.width*m+padding, scrollView.frame.origin.y, scrollView.frame.size.width-2*padding, scrollView.frame.size.height);

ImgView=[[UIImageView alloc]initWithFrame:imageViewFrame];

[ImgView setImage:[UIImage imageNamed:fullImageName]];

[scrollView addSubview:ImgView];

[ImgView setAccessibilityIdentifier:[FrontsCards objectAtIndex:randIdx]];


[[NSUserDefaults standardUserDefaults]setObject:UIImagePNGRepresentation(@"") forKey:@""];

前もって感謝します。

4

3 に答える 3

3

-viewDidLoadUITapGestureRecognizer をイメージに追加します。UIImageViewデフォルトで に設定されている でユーザーの操作を有効にする必要がありNOます。

- (void)viewDidLoad {
    [super viewDidLoad];

    [self.imgView setUserInteractionEnabled:YES];

    imgArray = [NSArray arrayWithObjects:@"Default.png", @"Default2.png", @"Default3.png", nil];
    NSInteger randomNumber = arc4random() % [imgArray count];

    UITapGestureRecognizer *doubleTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleDoubleTap:)];
    NSString *strImgName = [imgArray objectAtIndex:randomNumber];
    [self.imgView setImage:[UIImage imageNamed:strImgName]];
    NSLog(@"Image Name = %@", strImgName);
    [self.imgView setTag:randomNumber];

    doubleTapGestureRecognizer.numberOfTapsRequired = 2;
    [self.imgView addGestureRecognizer:doubleTapGestureRecognizer];
}

次に @selector を追加して、次のようにダブルタップを処理します。

- (void)handleDoubleTap:(UITapGestureRecognizer *)gesture {
    int imgViewTag = [gesture.view tag];
    NSString *strImageName = [imgArray objectAtIndex:imgViewTag];
    NSLog(@"Selected Image = %@",strImageName);
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:strImageName forKey:@"imageName"];
}

サンプル プロジェクトの Dropbox リンク

于 2013-05-20T11:25:27.837 に答える
0

次のように試すことができます：

表示中:

  YourMethod {

    randIdx=arc4random()%[FrontsCards count];

    NSString *imageName=[FrontsCards objectAtIndex:randIdx];

    NSString *fullImageName=[NSString stringWithFormat:@"%@",imageName];

    int padding=0;

    CGRect imageViewFrame=CGRectMake(scrollView.frame.size.width*m+padding, scrollView.frame.origin.y, scrollView.frame.size.width-2*padding, scrollView.frame.size.height);

    ImgView=[[UIImageView alloc]initWithFrame:imageViewFrame];

    [ImgView setImage:[UIImage imageNamed:fullImageName]];
    UITapGestureRecognizer *tapped = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tappedAction:)];
    tapped.numberOfTapsRequired = 2;
    [ImgView addGestureRecognizer:tapped];
    [ImgView setTag:randIndx];
    [scrollView addSubview:ImgView];

}

保管中...

  -(void)tappedAction:(UITapGestureRecognizer*)gesture
  {
   // storing in nsuserdefault ...
    int indArr = [sender.view tag];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
   NSData *imageData = UIImagePNGRepresentation([sender.view image]);
    NSString *thKey = [NSString stringWithFormat:@"%i", indArr];
    [defaults setObject:imageData forKey:theKey];

}

于 2013-05-20T11:25:20.133 に答える
0

このようにviewDidLoadでUITapGestureRecognizerを画像に追加できます

- (void)viewDidLoad
{

     UITapGestureRecognizer *gestureTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap:)];
     [myImageView addGestureRecognizer:gestureTap];
     gestureTap.delegate = self;
     gestureTap.numberOfTapsRequired = 2;

     [self.imageView addGestureRecognizer:gestureTap];
}

そして、ジェスチャーのアクションで、このように画像を NSUserDefault に保存できます

 -(void)doubleTap2:(UITapGestureRecognizer *)gesture
 {
     [[NSUserDefaults standardUserDefaults] setValue:self.imageView.image forKey:@"imagesaved"];
     [[NSUserDefaults standardUserDefaults] synchronize];
 }
于 2013-05-20T11:13:59.523 に答える