Question

我的项目中存在内存问题。但我不知道如何解决它。这就是我正在做的事情。就像你在下面看到的那样，我有一张有城市的地图。当你点击一个城市时，城市就会亮起来。

这就是我在touchesBegan方法中所做的。

    -(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

所以现在问题。一切顺利。但是在选择了几个图像之后，应用程序关闭了，我没有收到任何错误消息。几个星期以来，我一直在努力解决这个问题。

请有人帮我这个吗？

亲切的问候。

enter image description here

修改

经过一些测试后，我发现当我注释掉以下几行时，我没有收到错误：

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.

Answer 1

启用NSZombieEnabled以检查项目内的内存问题。

enter image description here

转到编辑方案 - ＆gt;参数那么

enter image description here

2-选择“诊断”选项卡，然后单击“启用僵尸对象”

这会将已释放的对象转换为NSZombie实例，再次使用时会打印控制台警告。这是一种调试辅助工具，可以增加内存使用（没有实际释放对象），但可以改善错误报告。

典型的情况是当你过度释放一个物体但你不知道哪一个：

我的touchesBegan方法里面的内存问题

1 个答案: