在使用拍照的时候崩了

[lwy121810]

我是在使用pad真机运行的时候， 点击拍照上面第二个闪电按钮的时候崩溃的，崩溃在

• (void) closeFlashlight:(UIButton )sender{
  // self.device.torchMode == AVCaptureTorchModeOff 判断
  [self flashLightModel:^{
  [self.device setTorchMode:AVCaptureTorchModeOff];//这一行
  }];
  }
  崩溃信息为
  相册Demo[12257:5168757] ** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[AVCaptureVideoDevice setTorchMode:] - the passed torchMode 0 is not supported by the device. Use -isTorchModeSupported: to discover valid torch modes.'
  *** First throw call stack:
  (0x1812f9900 0x180967f80 0x187584da0 0x100097664 0x100097290 0x1000975d4 0x186023e50 0x186023dcc 0x18600ba88 0x1860236e4 0x186023314 0x18601be30 0x185fec4cc 0x185fea794 0x1812b0efc 0x1812b0990 0x1812ae690 0x1811dd680 0x1826ec088 0x186054d90 0x1000857f0 0x180d7e8b8)
  libc++abi.dylib: terminating with uncaught exception of type NSException

[MakeZL]

@lwy121810 你好，你可以看下最新代码看看效果，我换了这种方式来处理。

AVCaptureDevice* device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
[device lockForConfiguration:nil]; //you must lock before setting torch mode
[device setTorchMode:isOn ? AVCaptureTorchModeOn : AVCaptureTorchModeOff];
[device unlockForConfiguration];

[lwy121810]

恩， 我刚刚又下载了一下， 不过还是崩溃

[lwy121810]

崩溃在- (void) setTorchOn:(BOOL)isOn
{
[self.device lockForConfiguration:nil]; //you must lock before setting torch mode
[self.device setTorchMode:isOn ? AVCaptureTorchModeOn : AVCaptureTorchModeOff];//这一行
[self.device unlockForConfiguration];
}

崩溃信息：
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[AVCaptureVideoDevice setTorchMode:] - the passed torchMode 0 is not supported by the device. Use -isTorchModeSupported: to discover valid torch modes.'
*** First throw call stack:
(0x1812f9900 0x180967f80 0x187584da0 0x1000f1cb4 0x1000f1e78 0x1000f192c 0x1000f1ddc 0x186023e50 0x186023dcc 0x18600ba88 0x1860236e4 0x186023314 0x18601be30 0x185fec4cc 0x185fea794 0x1812b0efc 0x1812b0990 0x1812ae690 0x1811dd680 0x1826ec088 0x186054d90 0x10013f168 0x180d7e8b8)
libc++abi.dylib: terminating with uncaught exception of type NSException

[MakeZL]

    if ([self.device isTorchModeSupported:AVCaptureTorchModeOn] ||
        [self.device isTorchModeSupported:AVCaptureTorchModeOff]) {
 ....
}

@lwy121810 我加了一个判断. 麻烦再试下

[lwy121810]

可以了， 不会蹦了， 不过这样的话上面的闪电按钮有什么用呢？点击好像没什么效果啊？

[MakeZL]

因为你的设备不支持闪光灯，o(╯□╰)o...

[lwy121810]

原来如此，现在我看ZLPhoto都是用的<AssetsLibrary/AssetsLibrary.h>这个库 ， 不过这个库不是已经被PhotoKit取代了么？ 您有没有想过更换为PhotoKit？因为最近在学习您这个库， 谢谢