What's the difference between textRect and boundingRect?

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Created Sep ’21

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In the context of UILabel, If I were to calculate the height of the content I'm displaying... is it better to use textRect or boundingRect?

Answered by Claude31 in 688289022

I would use boundingRect API.

As doc explains: You can use this method to compute the space required to draw the string. The constraints you specify in the size parameter are a guide for the renderer for how to size the string. However, the actual bounding rectangle returned by this method can be larger than the constraints if additional space is needed to render the entire string. Typically, the renderer preserves the width constraint and adjusts the height constraint as needed.

On the other hand, textRect doc states: You should not call this method directly.

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Claude31 OP

Sep ’21

Accepted Answer

I would use boundingRect API.

As doc explains: You can use this method to compute the space required to draw the string. The constraints you specify in the size parameter are a guide for the renderer for how to size the string. However, the actual bounding rectangle returned by this method can be larger than the constraints if additional space is needed to render the entire string. Typically, the renderer preserves the width constraint and adjusts the height constraint as needed.

On the other hand, textRect doc states: You should not call this method directly.

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