第一，布局文件。里面有一个surfaceview和三个按钮，分别是预览、拍照、保存。
[html]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<SurfaceView
android:id="@+id/mySurfaceView"
android:layout_width="fill_parent"
android:background="#D1EEEE"
android:layout_height="800px"
android:gravity="center" />
<LinearLayout
android:id="@+id/LinearLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:paddingTop="20dip"
android:orientation="horizontal" >
<Button
android:id="@+id/btnPreview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="预览" />
<Button
android:id="@+id/btnPhoto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="拍照" />
<Button
android:id="@+id/btnSave"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="保存" />
</LinearLayout>
</LinearLayout>
第2，源程序：
[cpp]
package yan.guoqi.testphoto;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;
public class TestPhotoActivity extends Activity implements SurfaceHolder.Callback{
/** Called when the activity is first created. */
private static finalString TAG = "yan:";
SurfaceView mySurfaceView = null;
SurfaceHolder mySurfaceHolder = null;
Button btnPreview = null;
Button btnPhoto = null;
Button btnSave = null;
Camera myCamera = null;
Camera.Parameters myParameters;
boolean isView = false;
Bitmap bm;
String savePath = "/mnt/sdcard/testPhoto/";
int cntSave = 0;
private Camera.AutoFocusCallback mAutoFocusCallback;
//private Camera.PreviewCallback mPreviewCallback;
private Timer mTimer;
private TimerTask mTimerTask;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//璁剧疆
