Android Zxing QR code flash adding Function

Android Zxing QR code flash adding Function

 

This mainly modifies the CameraManager class under the. zxing. camera package in Zxing.

 

 

The switch code is added to CamereManager.

 

// Provide public void flashHandler () {// camera. startPreview (); Parameters parameters = camera. getParameters (); // determine the current state of the flashlight to modify if (Parameters. FLASH_MODE_OFF.equals (parameters. getFlashMode () {turnOn (parameters);} else if (Parameters. FLASH_MODE_TORCH.equals (parameters. getFlashMode () {turnOff (parameters) ;}// open private void turnOn (Parameters parameters) {parameters. setFlashMode (Parameters. FLASH_MODE_TORCH); camera. setParameters (parameters);} // private void turnOff (Parameters parameters) {parameters. setFlashMode (Parameters. FLASH_MODE_OFF); camera. setParameters (parameters );}

 

Use imagebutton to call

 

Listen in CaptureActivity

 

Add the initTitle () method

 

FlashImageButton = (ImageButton) findViewById (R. id. btn_flashlight); flashImageButton. setOnClickListener (new OnClickListener () {// listen to the flashlight button @ Overridepublic void onClick (View v) {CameraManager. get (). flashHandler ();}});