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我有這種方法在模擬器一個Twitter按鈕UI按鈕圖像敷貼iOS 6的
-(IBAction)tweetThis:(id) sender{
if ([sender isSelected]) {
[sender setImage:[UIImage imageNamed:@"TwitterButtonBlue.png"] forState:UIControlStateNormal];
[sender setSelected:NO];
}
else {
[sender setImage:[UIImage imageNamed:@"TwitterButtonBlack.png"] forState:UIControlStateSelected];
[sender setSelected:YES];}
}
當我點擊按鈕(我在IB製成的觸摸向上內側)按鈕點擊和改變圖像,但它不會回到原來的按鈕圖像,例如blue.png變爲black.png,但保持黑色並且不會回到藍色。任何方式我可以這樣