android - java.lang.BootstrapMethodError : Exception from call site #2 bootstrap method on CameraX (1. 0.0-alpha06)

Question

我正在尝试使用 CameraX API 来获取照片，但是在我更新到新的 API 版本 1.0.0-alpha06 后它开始崩溃

CameraX.bindToLifecycle(...)

方法。

错误日志是:

Process: com.aximetria.aximetria.debug, PID: 2629
    java.lang.BootstrapMethodError: Exception from call site #2 bootstrap method
        at androidx.camera.core.Preview.updateListener(Preview.java:368)
        at androidx.camera.core.Preview.updateOutput(Preview.java:586)
        at androidx.camera.core.Preview.updateConfigAndOutput(Preview.java:363)
        at androidx.camera.core.Preview.onSuggestedResolutionUpdated(Preview.java:524)
        at androidx.camera.core.UseCase.updateSuggestedResolution(UseCase.java:408)
        at androidx.camera.core.CameraX.calculateSuggestedResolutions(CameraX.java:684)
        at androidx.camera.core.CameraX.bindToLifecycle(CameraX.java:195)
        at com.aximetria.aximetria.ui.main.profile.avatar.TakeAvatarPhotoFragment.initCamera(TakeAvatarPhotoFragment.kt:169)
        at com.aximetria.aximetria.ui.main.profile.avatar.TakeAvatarPhotoFragment.initCamera$default(TakeAvatarPhotoFragment.kt:117)
        at com.aximetria.aximetria.ui.main.profile.avatar.TakeAvatarPhotoFragment$onViewCreated$1.onPermissionsChecked(TakeAvatarPhotoFragment.kt:55)
    ...

我的代码是:

    private fun initCamera(reverseFacing: Boolean = false) {
        ...

        val previewConfig = PreviewConfig.Builder()
                .setTargetAspectRatio(AspectRatio.RATIO_4_3)
                .setLensFacing(lensFacing)
                .build()

        val preview = Preview(previewConfig)
        preview.setOnPreviewOutputUpdateListener { previewOutput ->
            val parent = binding.preview.parent as ViewGroup
            parent.removeView(binding.preview)
            parent.addView(binding.preview, 0)
            binding.preview.surfaceTexture = previewOutput.surfaceTexture
        }

        val captureConfig = ImageCaptureConfig.Builder()
                .setFlashMode(flashMode)
                .setLensFacing(lensFacing)
                .build()

        val capture = ImageCapture(captureConfig)

        binding.takeAPhoto.setOnClickListener {
            ...
            val imageFile = createTempFile(System.currentTimeMillis().toString(), ".jpg")
            capture.takePicture(imageFile, this, object : ImageCapture.OnImageSavedListener {
                override fun onImageSaved(file: File) {
                    ...
                }

                override fun onError(imageCaptureError: ImageCapture.ImageCaptureError, message: String, cause: Throwable?) {
                    ...
                }
            })
        }

        CameraX.bindToLifecycle(this, capture, preview)
    }

有谁知道是什么导致了这次崩溃？我在文档中看不到任何相关信息(这对于 CameraX 来说已经过时了)

Answer 1

在 gradle 中添加这个。

CameraX needs some methods that are part of Java 8, so we need to set our compile options accordingly. At the end of the android block, right after buildTypes, add the following:

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}