프로그램코드

카메라와 플레시를 다루는 기본 구조를 만들었다.

같은 자리에서 근 1주일여 이상 머무르는 중이다.

바닥으로 내려가서 점검하며 올라가려는 생각에 만들었다.

이것으로 실마리를 찾아가는 단초가 되었으면한다.

package com.example.tstbselight;



import java.io.IOException;

import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class MnTstBaeLightActy extends Activity implements SurfaceHolder.Callback {
	private static final String TAG = MnTstBaeLightActy.class.getSimpleName();
	
	Camera mCamera = null;
	Parameters mParameters = null; // add null!!!
	
    SurfaceView mSurfaceView;
    SurfaceHolder mSurfaceHolder;
    
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.acty_mntstbaelight);
		
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "*******************************************************");
		Log.d(TAG, "onCreate()");
		
        mSurfaceView = (SurfaceView)findViewById(R.id.surfaceView);
        mSurfaceHolder = mSurfaceView.getHolder();
        mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        mSurfaceHolder.addCallback(this);
	}
	
	



	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		Log.d(TAG, "surfaceCreated()");
		
		mCamera = Camera.open();
		mParameters = mCamera.getParameters();
	        
	        try {
				mCamera.setPreviewDisplay(mSurfaceHolder);
			} catch (IOException e) {
				e.printStackTrace();
			}
	        
			Log.d(TAG, "__ B4:setFlashMode():");
			mParameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
			
			Log.d(TAG, "__ B4:setParameters():");
			mCamera.setParameters(mParameters);
			
			Log.d(TAG, "__ B4:startPreview():");
			mCamera.startPreview();
			Log.d(TAG, "__ A4:startPreview():");
	}


	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {
		Log.d(TAG, "surfaceChanged()");
		
	}


	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		Log.d(TAG, "surfaceDestroyed()");
		
		if (mCamera != null) {
			Log.d(TAG, "setFlashMode(Parameters.FLASH_MODE_OFF)");
			mParameters.setFlashMode(Parameters.FLASH_MODE_OFF);
			
			Log.d(TAG, "setParameters(mParameters)");
			mCamera.setParameters(mParameters);
			
//			mSurfaceHolder.removeCallback(this);
			Log.d(TAG, "stopPreview()");
			mCamera.stopPreview();
			
			Log.d(TAG, "release()");
			mCamera.release();
			Log.d(TAG, "A4:release()");
			mCamera = null;
		}
	}
	
	@Override
	public void onDestroy() {
		Log.d(TAG, "onDestroy()");
		super.onDestroy();
	}
}