Android闪光灯开关

<uses-permission android:name="android.permission.FLASHLIGHT" />

<uses-permission android:name="android.permission.CAMERA"/>

<uses-feature android:name="android.hardware.camera" />

<uses-feature android:name="android.hardware.autofocus"/>

Camera  camera = Camera.open();

camera.startPreview();

parameter = camera.getParameters();

parameter.setFlashMode(Parameters.FLASH_MODE_TORCH);

camera.setParameters(parameter);

parameter = camera.getParameters();

parameter.setFlashMode(Parameters.FLASH_MODE_OFF);

camera.setParameters(parameter);