如何在不使用界面構建器的情況下創建簡單的按鈕？

Question

如何在不使用界面構建器的情況下創建簡單按鈕？

Answer 1

與嘗試以下

UIButton *playButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect]; 
playButton.frame = CGRectMake(110.0, 360.0, 100.0, 30.0); 
[playButton setTitle:@"Play" forState:UIControlStateNormal]; 
playButton.backgroundColor = [UIColor clearColor]; 
[playButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal ]; 
UIImage *buttonImageNormal = [UIImage imageNamed:@"blueButton.png"]; 
UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0]; 
[playButton setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal]; 
UIImage *buttonImagePressed = [UIImage imageNamed:@"whiteButton.png"]; 
UIImage *strechableButtonImagePressed = [buttonImagePressed stretchableImageWithLeftCapWidth:12 topCapHeight:0]; 
[playButton setBackgroundImage:strechableButtonImagePressed forState:UIControlStateHighlighted]; 
[playButton addTarget:self action:@selector(playAction:) forControlEvents:UIControlEventTouchUpInside]; 
[self.view addSubview:playButton]; 

Answer 2

喜歡這個 -

自定義按鈕 -

UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 100.0f, 30.0f)]; 

系統BUTTOM -

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 

Answer 3

你會需要聲明一個UIButton這樣的：

UIButton *newButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 80, 40)]; 
[newButton setTitle:@"Some Button" forState:UIControlStateNormal]; 

你會然後添加屁股到一個視圖 -

[self.view addSubview: newButton]; // (could be another view other then self.view) 

最後，如果要在按該按鈕時，會發生一些動作，你可以這樣：

[newButton addTarget:self action:@selector(doSomething) 
    forControlEvents:UIControlEventTouchUpInside]; 

當然聲明功能：

- (void) doSomething 
{ 
     NSLog(@"Button pressed"); 
} 

當然不要忘記釋放按鈕。