CaptureActivity.java

package com.fanxin.huangfangyi.main.widget.zxing.activity;

import android.app.Activity;
import android.content.Intent;
import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.widget.Toast;

import com.fanxin.huangfangyi.main.widget.zxing.camera.CameraManager;
import com.fanxin.huangfangyi.main.widget.zxing.decoding.CaptureActivityHandler;
import com.fanxin.huangfangyi.main.widget.zxing.decoding.InactivityTimer;
import com.fanxin.huangfangyi.main.widget.zxing.view.ViewfinderView;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;

import java.io.IOException;
import java.util.Vector;


public class CaptureActivity extends Activity implements Callback {

	private CaptureActivityHandler handler;
	private ViewfinderView viewfinderView;
	private boolean hasSurface;
	private Vector<BarcodeFormat> decodeFormats;
	private String characterSet;
	private InactivityTimer inactivityTimer;
	private MediaPlayer mediaPlayer;
	private boolean playBeep;
	private static final float BEEP_VOLUME = 0.10f;
	private boolean vibrate;
 
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
//		setContentView(R.layout.activity_camera);
//		//ViewUtil.addTopView(getApplicationContext(), this, R.string.scan_card);
//		CameraManager.init(getApplication(),false);
//		viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
		 
		hasSurface = false;
		inactivityTimer = new InactivityTimer(this);
	}

	@SuppressWarnings("deprecation")
	@Override
	protected void onResume() {
		super.onResume();
		SurfaceView surfaceView = null;
		SurfaceHolder surfaceHolder = surfaceView.getHolder();
		if (hasSurface) {
			initCamera(surfaceHolder);
		} else {
			surfaceHolder.addCallback(this);
			surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		}
		decodeFormats = null;
		characterSet = null;

		playBeep = true;
		AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
		if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
			playBeep = false;
		}
		initBeepSound();
		vibrate = true;
		
	 
	}

	@Override
	protected void onPause() {
		super.onPause();
		if (handler != null) {
			handler.quitSynchronously();
			handler = null;
		}
		CameraManager.get().closeDriver();
	}

	@Override
	protected void onDestroy() {
		inactivityTimer.shutdown();
		super.onDestroy();
	}
	
	/**
	 * Handler scan result
	 * @param result
	 * @param barcode
	 */
	public void handleDecode(Result result, Bitmap barcode) {
		inactivityTimer.onActivity();
		playBeepSoundAndVibrate();
		String resultString = result.getText();
		//FIXME
		if (resultString.equals("")) {
			Toast.makeText(CaptureActivity.this, "Scan failed!", Toast.LENGTH_SHORT).show();
		}else {
//			System.out.println("Result:"+resultString);
		//	Intent resultIntent = new Intent();
		//	Bundle bundle = new Bundle();
		//	bundle.putString("result", resultString);
		//	resultIntent.putExtras(bundle);
			//this.setResult(RESULT_OK, resultIntent);
             viewfinderView.drawResultBitmap(barcode);
	         
	         String Qruid =result.getText().toString().trim();
	         //传值 gongfan
             Intent intent = new Intent();
             intent.putExtra("address", Qruid);
             setResult(RESULT_OK,intent);
           
//             intent.setClass(CaptureActivity.this,
// AddFriendsTwoActivity.class);
//             startActivity(intent);
	         
	         //查询用户
	       //         
	       //  searchUser(uid);
		}
		  CaptureActivity.this.finish();
	}
	
	 /*  public void handleDecode(Result obj, Bitmap barcode) {
	        inactivityTimer.onActivity();
	        viewfinderView.drawResultBitmap(barcode);
	         playBeepSoundAndVibrate();
	        txtResult.setText(obj.getBarcodeFormat().toString() + ":"
	                + obj.getText());
	    }*/
	private void initCamera(SurfaceHolder surfaceHolder) {
		try {
			CameraManager.get().openDriver(surfaceHolder);
		} catch (IOException ioe) {
			return;
		} catch (RuntimeException e) {
			return;
		}
		if (handler == null) {
			handler = new CaptureActivityHandler(this, decodeFormats,
					characterSet);
		}
	}

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {

	}

	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		if (!hasSurface) {
			hasSurface = true;
			initCamera(holder);
		}

	}

	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		hasSurface = false;

	}

	public ViewfinderView getViewfinderView() {
		return viewfinderView;
	}

	public Handler getHandler() {
		return handler;
	}

	public void drawViewfinder() {
		viewfinderView.drawViewfinder();

	}

	private void initBeepSound() {
		if (playBeep && mediaPlayer == null) {
			// The volume on STREAM_SYSTEM is not adjustable, and users found it
			// too loud,
			// so we now play on the music stream.
			setVolumeControlStream(AudioManager.STREAM_MUSIC);
			mediaPlayer = new MediaPlayer();
			mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
			mediaPlayer.setOnCompletionListener(beepListener);

			AssetFileDescriptor file =null;
			try {
				mediaPlayer.setDataSource(file.getFileDescriptor(),
						file.getStartOffset(), file.getLength());
				file.close();
				mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
				mediaPlayer.prepare();
			} catch (IOException e) {
				mediaPlayer = null;
			}
		}
	}

	private static final long VIBRATE_DURATION = 200L;

	private void playBeepSoundAndVibrate() {
		if (playBeep && mediaPlayer != null) {
			mediaPlayer.start();
		}
		if (vibrate) {
			Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
			vibrator.vibrate(VIBRATE_DURATION);
		}
	}

	/**
	 * When the beep has finished playing, rewind to queue up another one.
	 */
	private final OnCompletionListener beepListener = new OnCompletionListener() {
		public void onCompletion(MediaPlayer mediaPlayer) {
			mediaPlayer.seekTo(0);
		}
	};

}