小编pwc*_*pwc的帖子

我是swift的新手.我正在运行内存泄漏的仪器工具.我发现了泄漏 "_ContiguousArrayStorage<String>"

它导致下面部分代码

let myData = NSData(data: request.value!)
let buffer = Array(UnsafeBufferPointer(start: UnsafePointer<CUnsignedChar>(myData.bytes), count: myData.length))

谁能帮我吗？.

上面的代码有什么问题吗？

编辑:添加更多代码.

let myData = NSData(data: request.value!)
var buffer = Array(UnsafeBufferPointer(start: UnsafePointer<CUnsignedChar>(myData.bytes), count: myData.length))

let responseArray: [CUnsignedChar] = Array(buffer)

let responseValue = BluetoothCommunicationManager.sharedInstance.parseData(responseArray,length: myData.length).0

let responseName = BluetoothCommunicationManager.sharedInstance.parseData(responseArray,length: myData.length).1

NSNotificationCenter.defaultCenter().postNotificationName(responseName, object: request, userInfo: responseValue as [NSObject : AnyObject])

singleton类的parseData方法返回NSMutableDictionary.

func parseData(responseData: [CUnsignedChar]) -> NSMutableDictionary
{
        let infoDictionary = NSMutableDictionary()
        let subIndexValue = Int(responseData[5])
        infoDictionary.setValue(subIndexValue, forKey: KEY_SUB_INDEX)
        return responseData
}

提前致谢.

我继续在我的Xcode IDE中收到此警告:

缺少依赖项目标"<PBXTargetDependency:0x201d16ca0:<no cached name >>"

这是什么意思？

我正在优化网页.该页面在Chrome中加载大约需要5秒钟,在IE11中需要15秒.查看IE开发人员工具网络选项卡显示它在Gap中花费了12秒.

我的问题是什么是Gap以及Gap期间正在做什么？我知道它被描述为"在IE中完成此请求和正在加载的页面之间的时间",但我不确定这是什么意思.

我在java中有这三个类,我遇到了数组列表的问题.为什么数组列表用最后一个条目替换所有元素？

arraylist.java

import java.util.ArrayList;

public class arraylist {
    public ArrayList<Circle> circles = new ArrayList<Circle>();
}

circle.java

public class Circle {
    public int x;
    public int y;
}

run.java

public class run {

    public static void main(String[] args) {
        arraylist ar=new arraylist();
        Circle c = new Circle();
        Scanner s = new Scanner(System.in);
        for (int i = 0; i <= 2; i++)
        {
            c.x = s.nextInt();
            c.y = s.nextInt();
            boolean status = ar.circles.add(c);
            if (status)
                System.out.print("added to circles ...");
        }
        System.out.print("########################################");
        for …