android camera开发(mrCamera源代码)
file:AndroidManifest.xml
- <uses-permission android:name="android.permission.RESTART_PACKAGES" />
- <uses-permission android:name="android.permission.CAMERA" />
- <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
- <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
main.java
- package com.mrsoft.mrcamer.mr;
- import java.io.File;
- import java.io.FileNotFoundException;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.text.SimpleDateFormat;
- import java.util.Date;
- import android.app.Activity;
- import android.app.ActivityManager;
- import android.app.AlertDialog;
- import android.app.AlertDialog.Builder;
- import android.content.DialogInterface;
- import android.content.DialogInterface.OnClickListener;
- import android.content.res.Resources;
- import android.graphics.Bitmap;
- import android.graphics.BitmapFactory;
- import android.graphics.Canvas;
- import android.graphics.PixelFormat;
- import android.graphics.Rect;
- import android.graphics.Bitmap.Config;
- import android.hardware.Camera;
- import android.hardware.Camera.AutoFocusCallback;
- import android.os.Bundle;
- import android.os.Environment;
- import android.util.DisplayMetrics;
- import android.view.KeyEvent;
- import android.view.Menu;
- import android.view.MenuItem;
- import android.view.MotionEvent;
- import android.view.SurfaceHolder;
- import android.view.SurfaceView;
- import android.widget.ImageView;
- import android.widget.Toast;
- public class main extends Activity implements SurfaceHolder.Callback{
- private final static int MENU_MRCAMERA = Menu.FIRST;
- private final static int MENU_MRPHOTO = Menu.FIRST+1;
- private final static int MENU_ABOUT = Menu.FIRST+2;
- private final static int MENU_EXIT = Menu.FIRST+3;
- private boolean bTE = false;
- private Rect rc = new Rect(0, 380, 320, 480);
- private SurfaceHolder sfHolder;
- private Camera camera;
- private SurfaceView mr_sv;
- private ImageView mr_iv;
- private Bitmap jpg;
- private Bitmap markBmp;
- private OutputStream fos;
- private String mFileName;
- private Date mDate;
- private SimpleDateFormat mFmt;
- private static int IMG_PREVIEW_WIDTH = 480;
- private static int IMG_PREVIEW_HEIGHT = 320;
- private static int IMG_WIDTH = 1280;
- private static int IMG_HEIGHT = 960;
- /** Called when the activity is first created. */
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- //getWindowManager().getDefaultDisplay().getMetrics(DisMet);
- mr_sv = (SurfaceView)findViewById(R.id.mr_sv);
- mr_iv = (ImageView)findViewById(R.id.mr_iv);
- Resources res = getResources();
- markBmp = BitmapFactory.decodeResource(res , R.drawable.mp);
- sfHolder = mr_sv.getHolder();
- sfHolder.addCallback(this);
- sfHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
- boolean sdCardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED); //判断sd卡是否存在
- if (!sdCardExist)
- {
- AlertDialog.Builder builder = new Builder(main.this);
- builder.setMessage("请插入内存卡后重新再试!");
- builder.setTitle("提示");
- builder.setPositiveButton("确认", new OnClickListener(){
- @Override
- public void onClick(DialogInterface arg0, int arg1) {
- // TODO Auto-generated method stub
- arg0.dismiss();
- exit();
- }
- });
- }
- }
- @Override
- public void surfaceChanged(SurfaceHolder holder, int format, int width,
- int height) {
- // TODO Auto-generated method stub
- Camera.Parameters parameters = camera.getParameters();
- parameters.setPictureFormat(PixelFormat.JPEG); // 设置图片的格式
- parameters.set("orientation", "portrait");
- parameters.setPreviewSize(IMG_PREVIEW_WIDTH, IMG_PREVIEW_HEIGHT); // 设置图片预览的高度和宽度
- parameters.setPictureSize(IMG_WIDTH, IMG_HEIGHT); // 设置图片的高度和宽度
- parameters.setPreviewFrameRate(60); // 设置图片预览的帧速
- camera.setParameters(parameters);
- camera.startPreview();
- }
- @Override
- public void surfaceCreated(SurfaceHolder holder) {
- // TODO Auto-generated method stub
- try {
- camera = Camera.open();
- camera.setPreviewDisplay(sfHolder);
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- @Override
- public void surfaceDestroyed(SurfaceHolder holder) {
- // TODO Auto-generated method stub
- camera.stopPreview();
- camera = null;
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // TODO Auto-generated method stub
- //menu.add(0, MENU_MRCAMERA, 1, "大头贴");
- menu.add(0, MENU_MRPHOTO, 2, "相册");
- menu.add(0, MENU_ABOUT, 3, "关于");
- menu.add(0, MENU_EXIT, 3, "退出");
- return super.onCreateOptionsMenu(menu);
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- // TODO Auto-generated method stub
- switch (item.getItemId())
- {
- case MENU_MRCAMERA:
- //mr_iv.setImageBitmap(markBmp);
- break;
- case MENU_MRPHOTO:
- break;
- case MENU_ABOUT:
- AlertDialog.Builder bd = new Builder(main.this);
- bd.setMessage("mrCamera.apk\n版本:1.0\n作者:mrandexe");
- bd.setTitle("关于");
- bd.setPositiveButton("确认", new OnClickListener(){
- @Override
- public void onClick(DialogInterface arg0, int arg1) {
- // TODO Auto-generated method stub
- arg0.dismiss();
- }
- });
- bd.create().show();
- break;
- case MENU_EXIT:
- AlertDialog.Builder builder = new Builder(main.this);
- builder.setMessage("确认退出吗?");
- builder.setTitle("提示");
- builder.setPositiveButton("确认", new OnClickListener(){
- @Override
- public void onClick(DialogInterface arg0, int arg1) {
- // TODO Auto-generated method stub
- arg0.dismiss();
- exit();
- }
- });
- builder.setNegativeButton("取消", new OnClickListener(){
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // TODO Auto-generated method stub
- dialog.dismiss();
- }
- });
- builder.create().show();
- break;
- default:
- break;
- }
- return super.onOptionsItemSelected(item);
- }
- @Override
- public boolean onTouchEvent(MotionEvent event) {
- // TODO Auto-generated method stub
- if (event.getAction()==MotionEvent.ACTION_DOWN)
- {
- int x = (int)event.getX();
- int y = (int)event.getY();
- if (rc.contains(x, y))
- {
- bTE = !bTE;
- if (bTE)
- {
- camera.autoFocus(mAfc);
- camera.stopPreview();
- Toast.makeText(this, "拍摄照片储存中.", Toast.LENGTH_SHORT).show();
- }
- else
- {
- //mr_iv.setImageBitmap(null);
- camera.startPreview();
- }
- }
- }
- return super.onTouchEvent(event);
- }
- private AutoFocusCallback mAfc = new AutoFocusCallback()
- {
- @Override
- public void onAutoFocus(boolean success, Camera camera) {
- // TODO Auto-generated method stub
- camera.takePicture(new shutter(), new raw(), new jpeg());
- }
- };
- class shutter implements Camera.ShutterCallback
- {
- @Override
- public void onShutter() {
- // TODO Auto-generated method stub
- }
- }
- class raw implements Camera.PictureCallback
- {
- @Override
- public void onPictureTaken(byte[] data, Camera camera) {
- // TODO Auto-generated method stub
- }
- }
- class jpeg implements Camera.PictureCallback
- {
- @Override
- public void onPictureTaken(byte[] data, Camera camera) {
- // TODO Auto-generated method stub
- try {
- mDate = new Date(System.currentTimeMillis());
- mFmt = new SimpleDateFormat("MMddhhmmss");
- mFileName = mFmt.format(mDate);
- //Bitmap bm = BitmapFactory.decodeByteArray(data, 0, data.length);
- jpg = BitmapFactory.decodeByteArray(data, 0, data.length);
- //jpg = mixtureBitmap(bm, markBmp);
- //mr_iv.setImageBitmap(jpg);
- File fPath = new File(Environment.getExternalStorageDirectory().toString()+"/mrCamera/");
- if (!fPath.exists())
- {
- fPath.mkdir();
- }
- File fName = new File(fPath, mFileName+".jpg");
- if (!fName.exists())
- {
- fName.createNewFile();
- }
- fos = new FileOutputStream(fName);
- jpg.compress(Bitmap.CompressFormat.JPEG, 100, fos );
- } catch (FileNotFoundException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- finally
- {
- try {
- fos.flush();
- fos.close();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- }
- }
- public Bitmap mixtureBitmap(Bitmap bmp, Bitmap mark)
- {
- int sW = bmp.getWidth();
- int sH = bmp.getHeight();
- Bitmap newBmp = Bitmap.createBitmap(sW, sH, Config.ARGB_8888);
- Canvas cv = new Canvas(newBmp);
- cv.drawBitmap(bmp, 0, 0, null);
- cv.drawBitmap(mark, 0, 0, null);
- cv.save(Canvas.ALL_SAVE_FLAG);
- cv.restore();
- return newBmp;
- }
- @Override
- public boolean onKeyDown(int keyCode, KeyEvent event) {
- // TODO Auto-generated method stub
- if (keyCode==KeyEvent.KEYCODE_BACK && event.getRepeatCount()==0)
- {
- exit();
- return true;
- }
- return super.onKeyDown(keyCode, event);
- }
- private void exit()
- {
- ActivityManager actMgr = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);
- actMgr.restartPackage(getPackageName());
- }
- }
file:main.xml
- <?xml version="1.0" encoding="utf-8"?>
- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:orientation="vertical"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- >
- <SurfaceView
- android:id="@+id/mr_sv"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent">
- </SurfaceView>
- <ImageView
- android:layout_height="fill_parent"
- android:id="@+id/mr_iv"
- android:layout_width="fill_parent">
- </ImageView>
- </RelativeLayout>