应用程序在iPhone 4上崩溃,但在iphone3g上运行良好



应用程序真正崩溃的代码是

NSString *phone, *phone_personal, *phone_business;
for(CFIndex i = 0; i < ABMultiValueGetCount(phones); i++) {
            mobileLabel = (NSString*)ABMultiValueCopyLabelAtIndex(phones, i);
            if([mobileLabel isEqualToString:(NSString *)kABPersonPhoneMainLabel]){
                phone = [(NSString*)ABMultiValueCopyValueAtIndex(phones, i) retain];
            }
            else{
                phone=@"(null)";
            }
            if([mobileLabel isEqualToString:(NSString *)kABPersonPhoneMobileLabel]){
                phone_personal = [(NSString*)ABMultiValueCopyValueAtIndex(phones, i)retain];
            }
            else{
                phone_personal=@"(null)";
            }
            if ([mobileLabel isEqualToString:(NSString*)kABPersonPhoneIPhoneLabel]){
                phone_business = [(NSString*)ABMultiValueCopyValueAtIndex(phones, i)retain];
            }
            else{
                phone_business=@"(null)";
            }
            [mobileLabel release];
        }
   CFRelease(phones);

首先我从地址簿中读取所有的电话号码,然后将电话号码添加到数组arrayofnumbersandmeamsil

 if (!([phone isEqualToString:@"(null)"]|| phone == nil || phone.length ==0)){
           [arrayofnumbersandmeamsil addObject:phone];
        }
        if (!([phone_personal isEqualToString:@"(null)"]|| phone_personal == nil || phone_personal.length ==0)) {
            [arrayofnumbersandmeamsil addObject:phone_personal];
        }
        if (!([phone_business isEqualToString:@"(null)"]|| phone_business == nil || phone_business.length ==0)) {
            [arrayofnumbersandmeamsil addObject:phone_business];
       }

我的问题是我的应用程序在iPhone 4上崩溃,在iPhone 3gs上运行良好,都有iOS 6.1.3。我知道这个问题与phone_personal phone_business的初始化有关。

问题是关于内存释放。当我释放mobileLabel使用

[mobileLabel release];

和使用

释放手机
CFRelease(phones);

然后它崩溃而不释放它显示内存泄漏。如何处理呢?

替代

CFRelease(phones);

if(phones){
CFRelease(phones);
}

解决我的问题。

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