How to alignment the text of button to the left?

Now I want to alignment the text of button to the left with code 开发者_运维百科, how to do ? and I code this :

button.titleLabel.textAlignment = UITextAlignmentLeft;

but it doesn't work.

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You have to use contentVerticalAlignment and contentHorizontalAlignment of the button.

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Use ContentHorizontalAlignment as below

btnObj.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;

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Swift Code

button.contentHorizontalAlignment = UIControlContentHorizontalAlignment.Left

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For those who are using Swift 3

button.contentHorizontalAlignment = .left

Above code align text to left border, so you might want little padding.

button.contentEdgeInsets = UIEdgeInsetsMake(0, 10, 0, 0)

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Setting to button titleLable alignment also works perfectly.

btn.titleLabel.textAlignment=NSTextAlignmentCenter;