后置摄像头拍照没有问题,一旦改为前置摄像头:
 parameters.set("camera-id",2);//sumsung 2.3以前的手机  前置
就根本无法拍照,只要点拍照就立马死掉,哪位能帮我分析一下package com.shanlitech.camera;import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.graphics.Bitmap.CompressFormat;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Display;
import android.view.KeyEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.Window;
import android.view.WindowManager;public class TakeActivity extends Activity {
private static final String TAG = "TakeActivity";
    private SurfaceView surfaceView;
    private Camera camera;
    private boolean preview;
private PictureCallback takePicListener;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Window window = getWindow();
     requestWindowFeature(Window.FEATURE_NO_TITLE);//没有标题
     window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏
     window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);//高亮        setContentView(R.layout.main);
        
        surfaceView =(SurfaceView)this.findViewById(R.id.surfaceView);
        surfaceView.getHolder().setFixedSize(1280, 960); //设置分辨率176, 144
        /*下面设置Surface不维护自己的缓冲区,而是等待屏幕的渲染引擎将内容推送到用户面前*/
        surfaceView.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        surfaceView.getHolder().addCallback(new SurfaceCallback());
        
        takePicListener=new TakePictureCallback();
    }
    
    private final class SurfaceCallback implements SurfaceHolder.Callback{ @Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
try {
//camera = Camera.open();//Camera.CameraInfo.CAMERA_FACING_FRONT
WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Camera.Parameters parameters = camera.getParameters();
parameters.setPreviewSize(display.getWidth(), display.getHeight());//设置预览照片的大小
parameters.setPreviewFrameRate(24);//每秒24帧
parameters.setPictureFormat(PixelFormat.JPEG);//设置照片的输出格式
parameters.set("jpeg-quality", 85);//照片质量
parameters.set("camera-id",2);//sumsung 2.3以前的手机  前置
parameters.set("rotation", 270);
parameters.setPictureSize(display.getWidth(), display.getHeight());//设置照片的大小
camera.setParameters(parameters);
camera.setPreviewDisplay(surfaceView.getHolder());//通过SurfaceView显示取景画面

camera.startPreview();//开始预览
preview = true;
} catch (IOException e) {
Log.e(TAG, e.toString());
}
} @Override
public void surfaceCreated(SurfaceHolder holder) {
try {
camera = Camera.open();//Camera.CameraInfo.CAMERA_FACING_FRONT
} catch (Exception e) {
Log.e(TAG, e.toString());
}
} @Override
public void surfaceDestroyed(SurfaceHolder holder) {
if(camera!=null){
if(preview)
camera.stopPreview();
//camera.lock();
camera.release();
}
}
    
    } @Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(camera!=null && event.getRepeatCount()==0){
switch (keyCode) {
case KeyEvent.KEYCODE_SEARCH:
camera.autoFocus(null);//自动对焦
break; case KeyEvent.KEYCODE_CAMERA:
case KeyEvent.KEYCODE_MENU:
camera.takePicture(null, null, takePicListener);
break;
}
}
return true;
}

private final class TakePictureCallback implements PictureCallback{
@Override
public void onPictureTaken(byte[] data, Camera camera) {
try {
//camera.stopPreview();
Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
File file = new File(Environment.getExternalStorageDirectory()+"/bluemei",
System.currentTimeMillis()+"_front.jpg");
FileOutputStream outStream = new FileOutputStream(file);
bitmap.compress(CompressFormat.JPEG, 100, outStream);
outStream.close();
camera.startPreview();//开始预览
} catch (Exception e) {
Log.e(TAG, e.toString());
}
}
}
    
}