Get text of button from IBAction – iPhone

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The sender should be the control which initiated the action. However, you should not assume its type and should instead leave it defined as an id. Instead, check for the object’s class in the actual method as follows:

- (IBAction)onClick1:(id)sender {
    // Make sure it's a UIButton
    if (![sender isKindOfClass:[UIButton class]])
        return;

    NSString *title = [(UIButton *)sender currentTitle];
}

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