Swift - 如何转换ConstUnsafePointer＆lt;（）＆gt;到CTRUNRef

Question

我打算转换ConstUnsafePointer＆lt;（）＆gt;到CTRunRef，但发生错误

var run: CTRunRef = CFArrayGetValueAtIndex(runArray, runIndex) as CTRunRef

编者说： ＆＃39; ConstUnsafePointer≤（）＆GT;＆＃39;不可转换为＆＃39; CTRunRef＆＃39;

Answer 1

看起来像这样

let runArray = ((CTLineGetGlyphRuns(line) as [AnyObject]) as! [CTRunRef])
for runIndex in 0..<CFArrayGetCount(runArray) {
    let run: CTRunRef = runArray[runIndex]
}