Objective c 在开始声明时继续使用未声明的标识符

我正在使用ObjC编写一个项目，目前我在正确编译它时遇到了问题，因为未声明的标识符存在错误，尽管我在开始时就将它们放在了一起。我基本上尝试了所有的方法，从新类到不同的变量，有些情况下int会出错，但这是主要问题

@interface MPAVRoute : NSObject
-(NSString *)productIdentifier;
@end

@interface BluetoothDevice : NSObject
-(int *)batteryLevel;
@end

@interface SBVolumeControl : NSObject {
float _GetMediaVolumeForIAP;
}
@end

@interface AVVolumeController : NSObject {
float _volume;
}
@end


%hook MPAVRoutingTableViewCell //calls .h file
- (NSString *)_batteryTextForRoute:(MPAVRoute *)route {
    int volint = (int) _volume
    NSLog(@"%@", [route productIdentifier]);

    if([[route productIdentifier] isEqual: @"BTHeadphones76,8206"]) {
        int hr = (([batteryLevel]/volint)*5)
        double min = (([batteryLevel]%volint)*5)
        NSString *hour = [@(hr) stringValue]
        NSString *mins = [@(min) stringValue]
        NSString *finval = int [batteryLevel]
        NSString *strValues = [finval stringByAppendingString:@"%, "
            hour: stringByAppendingString:@" hours " 
            mins: stringByAppendingString:@" minutes remaining."]
        return strValues;
    }

    return %orig;
}
%end

发生的错误如下所示

    > Making all for tweak BTTimeRemaining…
==> Preprocessing Tweak.x…
==> Compiling Tweak.x (armv7)…
Tweak.x:22:20: error: use of undeclared identifier '_volume'
int volint = (int) _volume
               ^
Tweak.x:26:17: error: use of undeclared identifier 'batteryLevel'
    int hr = (([batteryLevel]/volint)*5)
            ^
2 errors generated.
make[3]: *** [/Users/anudeep30/Desktop/bttimeremaining/.theos/obj/debug/armv7/Tweak.x.f89203b0.o] 
Error 1
make[2]: *** [/Users/anudeep30/Desktop/bttimeremaining/.theos/obj/debug/armv7/BTTimeRemaining.dylib] 
Error 2
make[1]: *** [internal-library-all_] Error 2
make: *** [BTTimeRemaining.all.tweak.variables] Error 2
nbp-51-196:bttimeremaining anudeep30$ 

---

您很可能需要使用

self.

或

self->

。与Swift不同，Objective-C中没有隐含的

self

。越狱obj c有点不同，您可以尝试添加*------>int*volint=（int）\u volume