我的内心内存问题开始方法 [英] memory issue inside my touchesBegan methodh
问题描述
我的项目中存在内存问题.但是我不知道如何解决.这就是我在做什么.就像您在下面看到的那样,我有一张地图,上面有城市.当您点击一个城市时,城市会亮起.
I have a memory issue inside my project. But I don't know how to solve it. This is what I'm doing. Like you can see below I have a map with cities on it. When you tap on a city, the city lights up.
这就是我在touchesBegan方法中所做的.
This is what I do in my touchesBegan method.
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"Touched");
CGPoint c = [[touches anyObject] locationInView: self];
struct CGPath *pat = (__bridge struct CGPath *)([arrayPaths objectAtIndex:0]);
struct CGPath *pat2 = (__bridge struct CGPath *)([arrayPaths objectAtIndex:1]);
// repeat this line 42 time (creating a struct for every city)
CGPathRef strokedPath = CGPathCreateCopy(pat);
CGPathRef strokedPath2 = CGPathCreateCopy(pat2);
//I also repeated this line 42 times
BOOL pointIsNearPath = CGPathContainsPoint(strokedPath, NULL, c, NO);
BOOL pointIsNearPath2 = CGPathContainsPoint(strokedPath2, NULL, c, NO);
//I also repeated this line 42 times
CFRelease(strokedPath);
CFRelease(strokedPath2);
//I also repeated this line 42 times
if (pointIsNearPath){
if([self.subviews containsObject:_imgLommel]) {
NSLog(@"Remove");
[_imgLommel removeFromSuperview];
[arrCities removeObject:[NSNumber numberWithInt:1]];
}else{
NSLog(@"add");
[self addSubview:_imgLommel];
[arrCities addObject:[NSNumber numberWithInt:1]];
}
}
if (pointIsNearPath2){
if([self.subviews containsObject:_imgHechtel]) {
NSLog(@"Remove");
[_imgHechtel removeFromSuperview];
[arrCities removeObject:[NSNumber numberWithInt:2]];
}else{
NSLog(@"add");
[self addSubview:_imgHechtel];
[arrCities addObject:[NSNumber numberWithInt:2]];
}
}
//What I do here is I place an image with the colored city on top off the other images. If the image is already there I remove it.
//I also repeated this line 42 times
现在是问题所在.一切顺利.但是在选择了几张图像之后,该应用程序关闭了,并且没有收到任何错误消息.数周以来,我一直在努力解决这个问题.
So now the problem. Every thing goes good. But after selecting several images, the app shuts down and I get no error messages. I'm struggling with this problem for weeks know.
可以请别人帮我吗?
亲切的问候.
编辑
经过一些测试,我发现在注释掉以下几行时我没有得到错误:
After some testing I found out that I don't get the errors when I comment out the following lines:
if (pointIsNearPath43){
if([self.subviews containsObject:_imgHoeselt]) {
NSLog(@"Remove");
// [_imgHoeselt removeFromSuperview];
[arrCities removeObject:[NSNumber numberWithInt:43]];
}else{
NSLog(@"add");
// [self addSubview:_imgHoeselt];
[arrCities addObject:[NSNumber numberWithInt:43]];
}
}
//Commented it also out in the other cities.
推荐答案
启用NSZombieEnabled来检查项目中的内存问题.
enable NSZombieEnabled to check memory issue inside project.
- 转到编辑方案->参数然后
2-选择诊断"标签,然后单击启用僵尸对象"
2- select the "Diagnostics" tab and click "Enable Zombie Objects"
这会将释放的对象转换为NSZombie实例,并在再次使用时打印控制台警告.这是一个调试辅助工具,可以增加内存使用量(没有释放任何对象),但可以改善错误报告.
This turns released objects into NSZombie instances that print console warnings when used again. This is a debugging aid that increases memory use (no object is really released) but improves error reporting.
一种典型情况是,当您过度释放一个对象却不知道是哪个对象时:
A typical case is when you over-release an object and you don't know which one:
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