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我正在開發一個應用程序,其中菜單移開以顯示第二個菜單。我正在用NSTimer移動圖像,並希望圖像在屏幕上遇到特定座標時停止。但是我目前使用的是不工作,它正在移動圖像,但它並沒有停止。我究竟做錯了什麼?編輯:這是Xcode 5UIImage到達某個點時不會停止計時器
- (IBAction)showSubMenu:(id)sender {
moveTimer = [NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(moveMenus) userInfo:nil repeats:YES];
[self stopMovement];
}
-(void)stopMovement {
if (mainMenu.center.y < -160) {
[moveTimer invalidate];
moveTimer = nil;
}
}
-(void)moveMenus {
mainMenu.center = (CGPointMake(mainMenu.center.x, mainMenu.center.y-1));
goButton.center = (CGPointMake(goButton.center.x, goButton.center.y-1));
Info.center = (CGPointMake(Info.center.x, Info.center.y-1));
helpButton.center = (CGPointMake(helpButton.center.x, helpButton.center.y-1));
subMenu.center = (CGPointMake(subMenu.center.x, subMenu.center.y-1));
description.center = (CGPointMake(description.center.x, description.center.y-1));
playEndless.center = (CGPointMake(playEndless.center.x, playEndless.center.y-1));
playQuick.center = (CGPointMake(playQuick.center.x, playQuick.center.y-1));
playSoundboard.center = (CGPointMake(playSoundboard.center.x, playSoundboard.center.y-1));
confirm.center = (CGPointMake(confirm.center.x, confirm.center.y-1));
}
感謝您的幫助提前! Rafee
非常感謝!我會在5分鐘內接受答案(非常快速的回覆) – RafeeJ
不客氣。如果對你有幫助,請不要猶豫,以確認答案:) –