package cn.yws.takephotos;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import android.app.Activity;
import android.content.pm.ActivityInfo;
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.os.Environment;
import android.os.Vibrator;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity implements SurfaceHolder.Callback{
private static String TAG = "MainActivity";
private Camera mCamera;
private Button mButton, mButton1, mButton2;
private SurfaceView mSurfaceView;
private SurfaceHolder holder;
private AutoFocusCallback mAutoFocusCallback = new AutoFocusCallback();
private String path = "MyPhoto";
private String path1;
private Bitmap bmp;
private int cnt = 1;
private Calendar c;
public native String getISBN(Bitmap bmp);
private int flag=5;
//震动器
private Vibrator vibrator;
@Override
protected void onDestroy() {
if(null!=vibrator)
{
vibrator.cancel();
}
super.onDestroy();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/* 隐藏状态栏 */
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
/* 隐藏标题栏 */
requestWindowFeature(Window.FEATURE_NO_TITLE);
/* 设定屏幕显示为横向 */
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
setContentView(R.layout.main);
/* SurfaceHolder设定 */
mSurfaceView = (SurfaceView) findViewById(R.id.surface_camera);
holder = mSurfaceView.getHolder();
holder.addCallback(MainActivity.this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
c = Calendar.getInstance();
vibrator=(Vibrator) this.getSystemService(VIBRATOR_SERVICE);
/* Button初始化 */
mButton = (Button) findViewById(R.id.bt_capture);
mButton.setText("对焦拍照");
mButton1 = (Button) findViewById(R.id.bt_save);
mButton1.setText("保存");
mButton2 = (Button) findViewById(R.id.bt_cancel);
mButton2.setText("取消");
/* 拍照Button的事件处理 */
mButton.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
Log.i(TAG,"click mButton");
/* 告动对焦后拍照 */
mCamera.autoFocus(mAutoFocusCallback);
}
});
/* Button的事件处理 */
mButton1.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
/* 保存文件 */
Log.i(TAG,"click button1");
if (bmp != null) {
/* 检查SDCard是否存在 */
if (!Environment.MEDIA_MOUNTED.equals(Environment
.getExternalStorageState())) {
/* SD卡不存在，显示Toast信息 */
Toast.makeText(MainActivity.this,
"SD卡不存在!无法保存相片,请插入SD卡。", Toast.LENGTH_LONG)
.show();
} else {
try {
/* 文件不存在就创建 */
File f = new File(Environment.getExternalStorageDirectory(), path);
Log.i(TAG,"click button2:" + f.getAbsolutePath());
if (!f.exists()) {
f.mkdir();
}
SimpleDateFormat dateFormat=new SimpleDateFormat("_yyyy_MM_DD_HH_mm_ss");
String date=dateFormat.format(new Date());
/* 保存相片文件 */
path1 ="camera"+date+".jpg";
File n = new File(f, path1);
FileOutputStream bos = new FileOutputStream(n
.getAbsolutePath());
/* 图片bmp写入文件，文件转换 */
bmp.compress(Bitmap.CompressFormat.JPEG, 100, bos);
/* 调用flush()方法，更新BufferStream */
bos.flush();
/* 结束OutputStream */
bos.close();
Toast.makeText(MainActivity.this,path1 + "保存成功!", Toast.LENGTH_LONG).show();
cnt++;
//震动一下
long[] pattern={800,50,400,30}; OFF/ON/OFF/ON...
vibrator.vibrate(pattern, 2);//1不重复，非-1为从pattern的指定下标开始重复
} catch (Exception e) {
e.printStackTrace();
}
}
}
mButton.setVisibility(View.VISIBLE);
mButton1.setVisibility(View.VISIBLE);
mButton2.setVisibility(View.VISIBLE);
/* 重新设定Camera */
stopCamera();
initCamera();
}
});
/* 放弃Button的事件处理 */
mButton2.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
Log.i(TAG,"click mButton2");
mButton.setVisibility(View.VISIBLE);
mButton1.setVisibility(View.VISIBLE);
mButton2.setVisibility(View.VISIBLE);
/* 重新设定Camera */
stopCamera();
initCamera();
}
});
}
@Override
public void surfaceCreated(SurfaceHolder surfaceholder) {
try {
/* 打开相机， */
mCamera = Camera.open();
mCamera.setPreviewDisplay(holder);
} catch (IOException exception) {
mCamera.release();
mCamera = null;
}
}
@Override
public void surfaceChanged(SurfaceHolder surfaceholder, int format, int w,
int h) {
/* 相机初始化 */
Log.i(TAG,"init camera");
initCamera();
}
@Override
public void surfaceDestroyed(SurfaceHolder surfaceholder) {
Log.i(TAG,"destoryed camera");
stopCamera();
mCamera.release();
mCamera = null;
}
/* 拍照的method */
private void takePicture() {
if (mCamera != null) {
Log.i(TAG,"takePicture");
mCamera.takePicture(shutterCallback, rawCallback, jpegCallback);
}
}
private ShutterCallback shutterCallback = new ShutterCallback() {
public void onShutter() {
Log.i(TAG, "onShutter");
}
};
private PictureCallback rawCallback = new PictureCallback() {
public void onPictureTaken(byte[] _data, Camera _camera) {
}
};
private PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] _data, Camera _camera) {
/* 取得相仞 */
try {
/* 设定Button?视性 */
mButton.setVisibility(View.GONE);
mButton1.setVisibility(View.VISIBLE);
mButton2.setVisibility(View.VISIBLE);
/* 取得相仞Bitmap对象 */
bmp = BitmapFactory.decodeByteArray(_data, 0, _data.length);
//发送给isbn分析
// String isbn = getISBN(bmp);获得图片解析后的信息
// Log.i(TAG, "isbn:" + flag + isbn);
flag--;
if(flag>0){
mCamera.autoFocus(mAutoFocusCallback);
}
} catch (Exception e) {
e.printStackTrace();
}
}
};
/* 告定义class AutoFocusCallback */
public final class AutoFocusCallback implements
android.hardware.Camera.AutoFocusCallback {
public void onAutoFocus(boolean focused, Camera camera) {
/* 对到焦点拍照 */
if (focused) {
takePicture();
}
}
};
/* 相机初始化的method */
private void initCamera() {
if (mCamera != null) {
try {
Camera.Parameters parameters = mCamera.getParameters();
/*
* 设定相片大小为1024*768， 格式为JPG
*/
parameters.setPictureFormat(PixelFormat.JPEG);
parameters.setPictureSize(1024, 768);
mCamera.setParameters(parameters);
/* 开启预览画面 */
mCamera.startPreview();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/* 停止相机的method */
private void stopCamera() {
if (mCamera != null) {
try {
/* 停止预览 */
mCamera.stopPreview();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context=".MainActivity" >
<SurfaceView
android:id="@+id/surface_camera"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" >
</SurfaceView>
<Button
android:id="@+id/bt_capture"
android:layout_width="64dp"
android:layout_height="wrap_content"
android:layout_x="360px"
android:layout_y="20px"
android:text="拍照" />
<Button
android:id="@+id/bt_save"
android:layout_width="68dp"
android:layout_height="wrap_content"
android:layout_x="234dp"
android:layout_y="110dp"
android:text="取消"
android:textSize="16px" />
<Button
android:id="@+id/bt_cancel"
android:layout_width="66dp"
android:layout_height="wrap_content"
android:layout_x="235dp"
android:layout_y="64dp"
android:text="保存"
android:textSize="16px" />
</AbsoluteLayout><?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cn.yws.takephotos"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="8" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.VIBRATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="cn.yws.takephotos.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.CAMERA" />
<user-permission android:name="android.permission.INTERNET" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
</manifest>
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