56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
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# coding=utf-8
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"""
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Flash
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-----
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"""
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from plyer.facades import Flash
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from jnius import autoclass
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from plyer.platforms.android import activity
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Camera = autoclass("android.hardware.Camera")
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CameraParameters = autoclass("android.hardware.Camera$Parameters")
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SurfaceTexture = autoclass("android.graphics.SurfaceTexture")
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PackageManager = autoclass('android.content.pm.PackageManager')
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pm = activity.getPackageManager()
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flash_available = pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)
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class AndroidFlash(Flash):
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_camera = None
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def _on(self):
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if self._camera is None:
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self._camera_open()
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if not self._camera:
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return
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self._camera.setParameters(self._f_on)
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def _off(self):
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if not self._camera:
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return
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self._camera.setParameters(self._f_off)
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def _release(self):
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if not self._camera:
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return
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self._camera.stopPreview()
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self._camera.release()
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self._camera = None
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def _camera_open(self):
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if not flash_available:
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return
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self._camera = Camera.open()
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self._f_on = Camera.getParameters()
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self._f_off = Camera.getParameters()
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self._f_on.setFlashMode(CameraParameters.FLASH_MODE_TORCH)
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self._f_off.setFlashMode(CameraParameters.FLASH_MODE_OFF)
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self._camera.startPreview()
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# Need this for Nexus 5
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self._camera.setPreviewTexture(SurfaceTexture(0))
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def instance():
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return AndroidFlash()
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