如何管理BOOL变量？

Question

我正在使用变量"音量"

@property BOOL * volume;

设置音量开(是)或关(否)

- (IBAction)manageVolume:(UIButton *)sender {
    if (_volume == TRUE) {
        _volume = !_volume; 
//      code...
    } else {
        _volume = !_volume;
//      code...
        }
    }

它工作但它返回三个警报:

• if (_volume == TRUE) { 回报 Comparison between pointer and integer ('BOOL *' (aka 'signed char *') and 'int')

• _volume = !_volume; 回报 Incompatible integer to pointer conversion assigning to 'BOOL *' (aka 'signed char *') from 'int'

我怎么解决？谢谢!

Answer 1

您的属性定义错误.它不应该是指向a的指针BOOL,它应该只是一个BOOL:

@property BOOL volume;