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的子類工作時,此MyViewController.m的UIButton addTarget不UIViewController中
actionNames[0] = @"hoge";
actionNames[1] = @"piyo";
NSMutableArray *actionConts = [[NSMutableArray alloc] init];
for(int i=0; i<[actionNames count]; i++){
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
[btn setFrame:CGRectMake(DEVICE_WIDTH/3 * i, 0, DEVICE_WIDTH/3, 45)];
// actionNames is NSMutableArray
[btn setTitle:actionNames[i] forState:UIControlStateNormal];
[btn setUserInteractionEnabled:YES];
actionConts[i] = btn;
}
// ↓ does not work
[actionConts[1] addTarget:self action:@selector(follow) forControlEvents:UIControlEventTouchUpInside];
// actionSubs is NSMutableArray
for(int i=0; i<[actionConts count]/3; i++){
actionSubs[i] = [[UIView alloc] initWithFrame:CGRectMake(0, 0, DEVICE_WIDTH, 45)];;
}
for(int i=0; i<[actionConts count]; i++){
int sub = floor((float)i/3.0);
[actionSubs[sub] addSubview:actionConts[i]];
}
UIScrollView *actionScr = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 150, 320, 45)];
[actionScr setPagingEnabled:YES];
[actionScr setShowsHorizontalScrollIndicator:NO];
[actionScr setBounces:NO];
actionScr.contentSize = CGSizeMake([actionSubs count] * DEVICE_WIDTH, 45);
for(int i=0; i<[actionSubs count]; i++){
[actionScr addSubview:actionSubs[i]];
}
- 創建一個按鈕。 => actionConts [n]的
- addTarget到actionConts [1]
- actionSubs []的alloc
- addSubView actionConts [n]至actionSubs [n]的
- addSubView actionSubs [n]至actionScr
- (addSubView actionScr到DRW)
(DRW是一個UIView實例 「IBOutlet中的UIView * DRW;」。)
當我點擊這個按鈕,它不工作...(';ω;`)
請幫幫我。 謝謝。
這是因爲'[actionNames count]'爲零,因此您的for循環永遠不會運行 – 2014-08-29 14:03:23
actionNames不是actionConts,因此您可以猜測其代碼爲空 – 2014-08-29 14:04:50
您可以分享將按鈕添加到超級視圖的代碼嗎? – 2014-08-29 14:09:36