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ユーザーが UIButton を押したときに、UIButton の画像を変更したいと考えています。画像には透明効果があります (エッジのみを示す .png です)。問題は、ボタンがタップされると、すべてが正常に機能する (それに接続されている他の機能) ことですが、アプリは 2 つの異なる画像を 1 秒ごとに上書きします! ボタンが押されると、2番目の画像を表示し、最初の画像を削除します(不要になります)。PS: 画像の配列を使用したくありません。ボタンのコードはこちら

UIButton *overlayButton = [UIButton buttonWithType:UIButtonTypeCustom];
[overlayButton setImage:[UIImage imageNamed:@"image1.png"] forState:UIControlStateNormal];
[overlayButton setFrame:CGRectMake(20, 382, 120, 60)];
[overlayButton addTarget:self action:@selector(scanButtonPressed) forControlEvents:UIControlEventTouchUpInside]; //just graphics
[overlayButton addTarget:self action:@selector(buttonshapeClicked:) forControlEvents:UIControlEventTouchUpInside]; //just to set a variable i++ for my cycle
[overlayButton addTarget:self action:@selector(changeshape:) forControlEvents:UIControlEventTouchUpInside];  //function that changes another shape
[[self view] addSubview:overlayButton];

私の単純なサイクル

- (void)buttonshapeClicked:(id)sender{
shape++;
if (shape == 4) {
    shape = 1;
        }}

ここでは、画面上の主要な形状を変更できるようにする主な機能

 -(void) changeshape:(id)sender {
if (shape==1 && people==2) {
    //bottone forma
    UIButton *overlayButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [overlayButton setImage:[UIImage imageNamed:@"passaquadrato.png"] forState:UIControlStateNormal];
    [overlayButton setFrame:CGRectMake(20, 382, 120, 60)];
    [overlayButton addTarget:self action:@selector(scanButtonPressed) forControlEvents:UIControlEventTouchUpInside];
    [overlayButton addTarget:self action:@selector(buttonshapeClicked:) forControlEvents:UIControlEventTouchUpInside];
    [overlayButton addTarget:self action:@selector(changeshape:) forControlEvents:UIControlEventTouchUpInside];
    [[self view] addSubview:overlayButton];

    //bottone people
    UIButton *overlayButtonp = [UIButton buttonWithType:UIButtonTypeCustom];
    [overlayButtonp setImage:[UIImage imageNamed:@"passatre.png"] forState:UIControlStateNormal];
    [overlayButtonp setFrame:CGRectMake(180, 382, 120, 60)];
    [overlayButtonp addTarget:self action:@selector(scanButtonPressed) forControlEvents:UIControlEventTouchUpInside];
    [[self view] addSubview:overlayButtonp];

    UIImageView *overlayImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"circle2.png"]];
    [overlayImageView setFrame:CGRectMake(20, 88, 280, 280)];
    [[self view] addSubview:overlayImageView];
}


else if (shape==2 && people==2) {
    //bottone forma
    UIButton *overlayButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [overlayButton setImage:[UIImage imageNamed:@"passarettangolo.png"] forState:UIControlStateNormal];
    [overlayButton setFrame:CGRectMake(20, 382, 120, 60)];
    [overlayButton addTarget:self action:@selector(scanButtonPressed) forControlEvents:UIControlEventTouchUpInside];
    [overlayButton addTarget:self action:@selector(buttonshapeClicked:) forControlEvents:UIControlEventTouchUpInside];
    [overlayButton addTarget:self action:@selector(changeshape:) forControlEvents:UIControlEventTouchUpInside];
    [[self view] addSubview:overlayButton];

    //bottone people
    UIButton *overlayButtonp = [UIButton buttonWithType:UIButtonTypeCustom];
    [overlayButtonp setImage:[UIImage imageNamed:@"passatre.png"] forState:UIControlStateNormal];
    [overlayButtonp setFrame:CGRectMake(180, 382, 120, 60)];
    [overlayButtonp addTarget:self action:@selector(scanButtonPressed) forControlEvents:UIControlEventTouchUpInside];
    [[self view] addSubview:overlayButtonp];

    UIImageView *overlayImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"square2.png"]];
    [overlayImageView setFrame:CGRectMake(20, 88, 280, 280)];
    [[self view] addSubview:overlayImageView];
}}
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1 に答える 1

1

このようにしてみてください：

UIButton *overlayButton = [UIButton buttonWithType:UIButtonTypeCustom];
[overlayButton setImage:[UIImage imageNamed:@"image1.png"] forState:UIControlStateNormal];
[overlayButton setFrame:CGRectMake(20, 382, 120, 60)];
[overlayButton addTarget:self action:@selector(setRightActionToButton:) forControlEvents:UIControlEventTouchUpInside];
[[self view] addSubview:overlayButton];

-(void)setRightActionToButton:(id)sender {
    UIButton *button = (UIButton *)sender;

    if (shape==1 && people==2) {
        [button setImage:[UIImage imageNamed:@"image2.png"] forState:UIControlStateNormal];
        [self scanButtonPressed:button]
    }

    else if (shape==2 && people==2) {
        [button setImage:[UIImage imageNamed:@"image3.png"] forState:UIControlStateNormal];
        [self buttonshapeClicked:button]
    }

    else if (shape==3 && people==2) {
        [button setImage:[UIImage imageNamed:@"image4.png"] forState:UIControlStateNormal];
        [self changeshape:button];
    }
}
于 2012-06-18T17:39:32.947 に答える