iphone - Objective C - 在 NSAttributedString 中插入字符串？

Question

我有一个NSAttributedString，我需要在我的属性字符串的中间插入一些文本，我该怎么做？

Answer 1

NSAttributedString *someAttrString = ...; // the original string you want to modify
NSAttributedString *someOtherAttrString = ...; // the text you want to insert
NSUInteger whereItGoes = ...; // where you want to insert the string

NSMutableAttributedString *mutableString = [someAttrString mutableCopy];
if (mutableString) {
    [mutableString insertAttributedString: someOtherAttrString atIndex: whereItGoes];
    // mutableString now contains the modified data; it's up to you
    // how it gets used in your app.

    [mutableString release];
}