iOS 動態添加按鈕

iOS 動態添加按鈕

單擊一個已有的按鈕後自動建立一個新的按鈕，並為新按鈕添加事件，使得單擊時彈出提示框。

在viewcontroller.h中添加

@property (weak, nonatomic) IBOutletUIButton *addbutton;

為這個按鈕添加響應事件addbutton

在viewcontroller.m中添加

- (IBAction)addButton:(id)sender {

//動態添加一個按鈕

CGRect frame = CGRectMake(0,0, 300, 50);

UIButton *button = [UIButtonbuttonWithType:UIButtonTypeRoundedRect];

button.frame = frame;

[button setTitle:@"新添加的動態按鈕"forState: UIControlStateNormal];

button.backgroundColor = [UIColor redColor];

button.tag =2000;

[button addTarget:selfaction:@selector(buttonClicked:)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:button];

}

//這個是新按鈕的響應函數

-(IBAction) buttonClicked:(id)sender {

UIAlertView *alert = [[UIAlertViewalloc] initWithTitle:@"提示"

message:@"單擊了動態按鈕！"

delegate:self

cancelButtonTitle:@"確定"

otherButtonTitles:nil];

[alertshow];

}