如何应对iOS中泄漏时，内存消耗攀升，但泄漏未检测到泄漏？ [关闭](How to deal w

关闭。这个问题需要更加专注。它目前不接受的答案。了解详情。

我工作在iOS应用ARC（更应要求提供的代码），以及以前的我是生产和丢弃大量图像。我想，我还是地方不得不图像的参考，即使我叫removeFromSuperview，并试图消除对使用不再视为图像的所有引用。我试过泄漏，泄漏和报道随着时间的推移内存使用量大致呈线性增加，17M左右开始。

我经历了和更换，以图像的所有引用是实例变量，所以他们将采取的内存小，有限的，固定的数额，并转化，而不是除暴安良，用于时钟指针的图像。很不幸，导致随着时间的推移慢慢增加的内存使用情况，开始5M，而不是17M，但在其他方面同样的问题，简单地翻译成一个更好的起点。

我的代码中的修剪的版本如下。你能告诉我什么是漏水（或“伪漏”的泄漏并没有说明有泄漏）关于这一点，我怎么能贴近内存边界在启动时的代码使用？

谢谢，

- (void) renderScreen
{
int height = floor([[UIScreen mainScreen] bounds].size.height + .4);
int width = floor([[UIScreen mainScreen] bounds].size.width + .4);

if (height == 2048 || height == 2008 || height == 1024 || height == 1004 || height == 984)
{
    if (UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation))
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-Portrait.png"];
    }
    else
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-Landscape.png"];
    }
}
else if (height == 1536 || height == 768 || height == 748 || height == 728)
{
    _backgroundImage = [UIImage imageNamed:@"Background-Default-Landscape.png"];
}
else if (height == 1136 || height == 1116 || height == 1096)
{
    if (UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation))
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-568.png"];
    }
    else
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-Rotated-568.png"];
    }
}
else if (height == 960 || height == 940 || height == 920 || height == 480 || height == 460 || height == 440)
{
    if (UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation))
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default.png"];
    }
    else
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-Rotated.png"];
    }
}
else if ((height == 640 || height == 620 || height == 600) && (width == 1136 || width == 1116 || width == 1096))
{
    _backgroundImage = [UIImage imageNamed:@"Background-Rotated-568.png"];
}
else if ((height == 640 || height == 620 || height == 600 || height == 320 || height == 300 || height == 280) && (width == 960 || width == 940 || width == 920 || width == 480 || width == 470 || width == 410))
{
    if (UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation))
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-Portrait.png"];
    }
    else
    {
        _backgroundImage = [UIImage imageNamed:@"Background-Default-Rotated.png"];
    }
}
else
{
    _backgroundImage = [UIImage imageNamed:@"Background-Default-Portrait.png"];

}
if (!UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation))
{
    int juggle = height;
    height = width;
    width = juggle;
}
NSUInteger centerX = width * .5;
NSUInteger centerY = height * .5;

_containerRect = CGRectZero;
_containerRect.size = [[UIScreen mainScreen] bounds].size;

self.view.backgroundColor = [UIColor colorWithPatternImage:_backgroundImage];
_backgroundView = [[UIImageView alloc] initWithImage:_backgroundImage];
[self.view addSubview:_backgroundView];
if (_changed)
{
    _containerView = [[UIView alloc] initWithFrame:_containerRect];
}

double timeStampSeconds = [[NSDate date] timeIntervalSince1970];
double hours   = fmod(timeStampSeconds / 86400, 24);
double minutes = fmod(timeStampSeconds /  3600, 60);
double seconds = fmod(timeStampSeconds,     60);
NSLog(@"Milliseconds: %lf, Hours: %.0f, minutes: %.0f, seconds: %.0f", timeStampSeconds * 1000.0, hours, minutes, seconds);
[_containerView removeFromSuperview];
_containerView = [[UIView alloc] initWithFrame:_containerRect];
_hourHandImage = [UIImage imageNamed:@"hour-hand.png"];
_hourHandView = [[UIImageView alloc] initWithImage:_hourHandImage];
_hourHandImage = [UIImage imageNamed:@"hour-hand.png"];
_hourHandView = [[UIImageView alloc] initWithImage:_hourHandImage];
[self.view addSubview:_hourHandView];

_hourHandView.layer.anchorPoint = CGPointMake(0.5f, 0.5f);
_hourTransform = CGAffineTransformMakeTranslation(centerX, centerY);
_hourTransform = CGAffineTransformTranslate(_hourTransform, -17, -127);
_hourTransform = CGAffineTransformRotate(_hourTransform, hours / 12.0 * M_PI * 2.0);
_minuteTransform = CGAffineTransformMakeTranslation(centerX, centerY);
_minuteTransform = CGAffineTransformTranslate(_minuteTransform, -10, -182);
_minuteTransform = CGAffineTransformRotate(_minuteTransform, minutes / 60.0 * M_PI * 2.0);
_hourHandView.transform = _hourTransform;
_minuteHandImage = [UIImage imageNamed:@"minute-hand.png"];
_minuteHandView = [[UIImageView alloc] initWithImage:_minuteHandImage];
_minuteHandView.transform = _minuteTransform;
[self.view addSubview:_minuteHandView];
_minuteTransform = CGAffineTransformRotate(_minuteTransform, minutes / 60.0 * M_PI * 2.0);
_secondHandImage = [UIImage imageNamed:@"second-hand.png"];
_secondTransform = CGAffineTransformMakeTranslation(centerX, centerY);
_secondTransform = CGAffineTransformTranslate(_secondTransform, -10, -189);
_secondTransform = CGAffineTransformRotate(_secondTransform, seconds / 60.0 * M_PI * 2.0);
_secondHandView = [[UIImageView alloc] initWithImage:_secondHandImage];
_secondHandView.transform = _secondTransform;
[self.view addSubview:_secondHandView];
}

- 编辑 -

我已经重构了一个方法为两种方法，一个用于初始显示，以及一个用于增量更新。看来，增量更新方法只调用一次，作为时钟被冻结，签名记录语句被调用一次。

我现在有，对于更新部分：

- (void)render
{
    [self renderScreenInitial];
    [NSTimer scheduledTimerWithTimeInterval:0.002
                                     target:self
                                   selector:@selector(renderingTimer:)
                                   userInfo:nil
                                    repeats:YES];
}

- (void) renderScreenIncremental
{
    int height = floor([[UIScreen mainScreen] bounds].size.height + .4);
    int width = floor([[UIScreen mainScreen] bounds].size.width + .4);
    if (!UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation))
    {
        int juggle = height;
        height = width;
        width = juggle;
    }
    double decibelAngle = M_PI / 4 + (_decibel / 60) * M_PI / 2;
    double decibelAngleDifference = decibelAngle - _previousDecibelAngle;
    _previousDecibelAngle = decibelAngle;
    NSLog(@"%lf %lf", _decibel, decibelAngle);
    _decibelNeedleView = [[UIImageView alloc] initWithImage:_decibelNeedle];
    // CGAffineTransform decibelTransform = CGAffineTransformMakeTranslation(centerX, centerY);
    CGAffineTransform decibelTransform = CGAffineTransformMakeRotation(decibelAngleDifference);
    decibelTransform = CGAffineTransformTranslate(decibelTransform, sin(decibelAngle - .06) * -298, -cos(decibelAngle - .06) * 298);
    _decibelNeedleView.transform = decibelTransform;
    [self.view addSubview:_decibelNeedleView];
    double timestampSeconds = [[NSDate date] timeIntervalSince1970];
    double timestampSecondsDifference = timestampSeconds - _previousTimestampSeconds;
    _previousTimestampSeconds = timestampSeconds;
    double hoursDifference   = fmod(timestampSecondsDifference / 86400, 24);
    double minutesDifference = fmod(timestampSecondsDifference /  3600, 60);
    double secondsDifference = fmod(timestampSecondsDifference,     60);
    NSLog(@"Milliseconds: %lf, Hours: %.0f, minutes: %.0f, seconds: %.0f", timestampSecondsDifference * 1000.0, hoursDifference, minutesDifference, secondsDifference);
    _hourHandView.transform = CGAffineTransformMakeRotation(hoursDifference);
    _minuteHandView.transform = CGAffineTransformMakeRotation(minutesDifference);
    _secondHandView.transform = CGAffineTransformMakeRotation(secondsDifference);
}

-(void)renderingTimer:(NSTimer *)timer {
    [self renderScreenIncremental];
}

我欣赏的帮助。你看为什么要更新一次显示，然后再继续保持更新？

谢谢，