Android拍照，上传，预览综合

发布时间：2024-01-11 02:41:39

第一步

 
   1try  { 
 
   2　　?? Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
 
   3　　?? startActivityForResult(intent,  0); 
 
   4??
 
   5} catch (ActivityNotFoundException e) { 
 
   6　　?? // Do nothing for now 
 
   7}

[代码] 第二步

 
    01　　@Override
 
    02　　 protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
 
    03　　? try { 
 
    04　　?? if (requestCode != 0) { 
 
    05　　??? return; 
 
    06　　?? } 
 
    07　　?? super.onActivityResult(requestCode, resultCode, data); 
 
    08　　?? Bundle extras = data.getExtras(); 
 
    09　　?? Bitmap b = (Bitmap) extras.get("data"); 
 
    10　　?? // 
 
    11　?? 　 
 
    12　　?? // 
 
    13　　?? ImageView a = (ImageView)findViewById(R.id.imageView1); 
 
    14　　?? a.setImageBitmap(b); 
 
    15　　?? // 
 
    16　　?? /* 
 
    17　　??? * 得到图片对图片处理... 
 
    18　　??? */
 
    19　　? } catch (Exception e) { 
 
    20　　?? // TODO: handle exception 
 
    21　　?? System.out.println(e.getMessage()); 
 
    22　　? } 
 
    23　　 }

最近需要做手机拍照([1]、调用系统相机【博客最后】；[2]、自己写照相机布局)，预览，上传功能。特地研究了下android的手机拍照，其实不难。

参考：

http://blog.csdn.net/cfwdl/article/details/5746708

http://mjbb.iteye.com/blog/1018006

http://blog.csdn.net/hellogv/article/details/5962494

1、上传文件功能没啥好说的，网上很多讲的，只要细心点，按照格式来写发送的数据，都是没有问题的。如果遇到问题，欢迎留言讨论、

2、预览也没啥讲的，就用Gallery和ImageSwitcher就行，我做的很简单(参考代码)。

附上流程图：

拍照功能：【预览尺寸有知道的朋友留言告知。】

Java代码

import?java.io.BufferedOutputStream; ??
import?java.io.File; ??
import?java.io.FileOutputStream; ??
import?java.io.IOException; ??
??
import?android.app.Activity; ??
import?android.app.AlertDialog; ??
import?android.content.DialogInterface; ??
import?android.content.Intent; ??
import?android.graphics.Bitmap; ??
import?android.graphics.BitmapFactory; ??
import?android.graphics.PixelFormat; ??
import?android.hardware.Camera; ??
import?android.hardware.Camera.AutoFocusCallback; ??
import?android.hardware.Camera.PictureCallback; ??
import?android.hardware.Camera.ShutterCallback; ??
import?android.os.Bundle; ??
import?android.os.Environment; ??
import?android.util.Log; ??
import?android.view.KeyEvent; ??
import?android.view.SurfaceHolder; ??
import?android.view.SurfaceView; ??
import?android.view.View; ??
import?android.view.View.OnClickListener; ??
import?android.widget.Button; ??
??
import?com.peacemap.photo.po.Const; ??
/** ?
?*?拍照 ?
?*?@author?Administrator?
?*/??
public?class?TakePhotoAct?extends?Activity?implements?SurfaceHolder.Callback{ ??
???? ??
????private?static?String?imgPath?=?Environment.getExternalStorageDirectory().getPath()?+?"/"+Const.imageDir; ??
???? ??
????private?SurfaceView?surfaceView;???//相机画布??
????private?SurfaceHolder?surfaceHolder;? ??
????private?Button?takePicView,exitView; ??
???? ??
????private?Camera?mCamera;????//照相机??
???? ??
????@Override??
????public?void?onCreate(Bundle?savedInstanceState)?{ ??
???????? ??
????????super.onCreate(savedInstanceState); ??
????????setContentView(R.layout.main); ??
//这里我在AndroidManifest.xml的activity中添加了android:theme="@android:style/Theme.NoTitleBar.Fullscreen"??
??
????????/** ?
?????????*?隐藏状态栏和标题栏 ?
????????? ?
????????this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,?WindowManager.LayoutParams.FLAG_FULLSCREEN);?
????????requestWindowFeature(Window.FEATURE_NO_TITLE);?
????????*/??
????????//setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);??//横屏??
????????/** ?
?????????*?获取Button并且设置事件监听?
?????????*/??
????????takePicView?=?(Button)this.findViewById(R.id.takepic); ??
????????takePicView.setOnClickListener(TakePicListener); ??
????????exitView?=?(Button)this.findViewById(R.id.exit); ??
????????exitView.setOnClickListener(new?OnClickListener()?{ ??
????????????@Override??
????????????public?void?onClick(View?v)?{ ??
????????????????finish(); ??
????????????} ??
????????}); ??
????????surfaceView?=?(SurfaceView)this.findViewById(R.id.surface_camera); ??
????????surfaceHolder?=?surfaceView.getHolder(); ??
????????surfaceHolder.addCallback(this); ??
????????surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); ??
???????? ??
????????checkSoftStage();??//首先检测SD卡是否存在??
????} ??
???? ??
????/** ?
?????*?检测手机是否存在SD卡,网络连接是否打开?
?????*/??
????private?void?checkSoftStage(){ ??
????????if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){??//判断是否存在SD卡??
//??????????String?rootPath?=?Environment.getExternalStorageDirectory().getPath();??//获取SD卡的根目录??
????????????File?file?=?new?File(imgPath); ??
????????????if(!file.exists()){ ??
????????????????file.mkdir(); ??
????????????} ??
????????}else{ ??
????????????new?AlertDialog.Builder(this).setMessage("检测到手机没有存储卡！请插入手机存储卡再开启本应用。") ??
????????????????.setPositiveButton("确定",?new?DialogInterface.OnClickListener()?{ ??
????????????????????@Override??
????????????????????public?void?onClick(DialogInterface?dialog,?int?which)?{ ??
????????????????????????finish(); ??
????????????????????} ??
????????????????}).show(); ??
????????} ??
????} ??
???? ??
????/** ?
?????*?点击拍照按钮,启动拍照 ?
?????*/??
????private?final?OnClickListener?TakePicListener?=?new?OnClickListener(){ ??
????????@Override??
????????public?void?onClick(View?v)?{ ??
????????????mCamera.autoFocus(new?AutoFoucus());??//自动对焦??
????????} ??
????}; ??
???? ??
????/** ?
?????*?自动对焦后拍照 ?
?????*?@author?aokunsang?
?????*?@Date?2011-12-5?
?????*/??
????private?final?class?AutoFoucus?implements?AutoFocusCallback{ ??
????????@Override??
????????public?void?onAutoFocus(boolean?success,?Camera?camera)?{ ??
????????????if(success?&&?mCamera!=null){ ??
????????????????mCamera.takePicture(mShutterCallback,?null,?mPictureCallback); ??
????????????} ??
????????} ??
????} ??
????/** ?
?????*?重点对象、?此处实例化了一个本界面的PictureCallback?
?????*?当用户拍完一张照片的时候触发，这时候对图片处理并保存操作。?
?????*? ?
?????*/??
????private?final?PictureCallback?mPictureCallback?=?new?PictureCallback()?{ ??
????????@Override??
????????public?void?onPictureTaken(byte[]?data,?Camera?camera)?{ ??
????????????try?{ ??
????????????????String?fileName?=?System.currentTimeMillis()+".jpg"; ??
????????????????File?file?=?new?File(imgPath,fileName); ??
????????????????Bitmap?bm?=?BitmapFactory.decodeByteArray(data,?0,?data.length); ??
????????????????BufferedOutputStream?bos?=?new?BufferedOutputStream(new?FileOutputStream(file)); ??
????????????????bm.compress(Bitmap.CompressFormat.JPEG,?60,?bos); ??
????????????????bos.flush(); ??
????????????????bos.close(); ??
???????????????? ??
????????????????Intent?intent?=?new?Intent(TakePhotoAct.this,PictureViewAct.class); ??
????????????????intent.putExtra("imagePath",?file.getPath()); ??
????????????????startActivity(intent); ??
????????????}?catch?(Exception?e)?{ ??
????????????????e.printStackTrace(); ??
????????????} ??
????????} ??
????}; ??
????/**? ?
????*?在相机快门关闭时候的回调接口，通过这个接口来通知用户快门关闭的事件，??
????*?普通相机在快门关闭的时候都会发出响声，根据需要可以在该回调接口中定义各种动作，?例如：使设备震动??
????*/?? ??
????private?final?ShutterCallback?mShutterCallback?=?new?ShutterCallback()?{?? ??
????????public?void?onShutter()?{?? ??
????????????Log.d("ShutterCallback",?"...onShutter...");?? ??
????????}?? ??
????}; ??
???? ??
????@Override??
????/** ?
?????*?初始化相机参数，比如相机的参数:?像素,?大小,格式?
?????*/??
????public?void?surfaceChanged(SurfaceHolder?holder,?int?format,?int?width, ??
????????????int?height)?{ ??
????????Camera.Parameters?param?=?mCamera.getParameters(); ??
????????/** ?
?????????*?设置拍照图片格式 ?
?????????*/??
????????param.setPictureFormat(PixelFormat.JPEG); ??
????????/** ?
?????????*?设置预览尺寸【这里需要注意：预览尺寸有些数字正确，有些会报错，不清楚为啥】?
?????????*/??
????????//param.setPreviewSize(320,?240);??
????????/** ?
?????????*?设置图片大小 ?
?????????*/??
????????param.setPictureSize(Const.width,?Const.height); ??
????????mCamera.setParameters(param); ??
????????/** ?
?????????*?开始预览 ?
?????????*/??
????????mCamera.startPreview(); ??
????} ??
????@Override??
????/** ?
?????*?打开相机,设置预览 ?
?????*/??
????public?void?surfaceCreated(SurfaceHolder?holder)?{ ??
????????try?{ ??
????????????mCamera?=?Camera.open();??//打开摄像头??
????????????mCamera.setPreviewDisplay(holder); ??
????????}?catch?(IOException?e)?{ ??
????????????mCamera.release(); ??
????????????mCamera?=?null; ??
????????} ??
????} ??
???? ??
????@Override??
????/** ?
?????*?预览界面被关闭时，或者停止相机拍摄;释放相机资源?
?????*/??
????public?void?surfaceDestroyed(SurfaceHolder?holder)?{ ??
????????mCamera.stopPreview(); ??
????????if(mCamera!=null)?mCamera.release(); ??
????????mCamera?=?null; ??
????} ??
???? ??
????@Override??
????public?boolean?onKeyDown(int?keyCode,?KeyEvent?event)?{ ??
????????if(keyCode?==?KeyEvent.KEYCODE_CAMERA){???//按下相机实体按键，启动本程序照相功能??
????????????mCamera.autoFocus(new?AutoFoucus());??//自动对焦??
????????????return?true; ??
????????}else{ ??
????????????return?false; ??
????????} ??
????} ??
}??

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.AutoFocusCallback;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.KeyEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.peacemap.photo.po.Const;
/**
 * 拍照
 * @author Administrator
 */
public class TakePhotoAct extends Activity implements SurfaceHolder.Callback{
	
	private static String imgPath = Environment.getExternalStorageDirectory().getPath() + "/"+Const.imageDir;
	
	private SurfaceView surfaceView;   //相机画布
	private SurfaceHolder surfaceHolder; 
	private Button takePicView,exitView;
	
	private Camera mCamera;    //照相机
	
	@Override
    public void onCreate(Bundle savedInstanceState) {
		
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
//这里我在AndroidManifest.xml的activity中添加了android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

        /**
         * 隐藏状态栏和标题栏
         
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        */
        //setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);  //横屏
        /**
         * 获取Button并且设置事件监听
         */
        takePicView = (Button)this.findViewById(R.id.takepic);
        takePicView.setOnClickListener(TakePicListener);
        exitView = (Button)this.findViewById(R.id.exit);
        exitView.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				finish();
			}
		});
        surfaceView = (SurfaceView)this.findViewById(R.id.surface_camera);
        surfaceHolder = surfaceView.getHolder();
        surfaceHolder.addCallback(this);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        
        checkSoftStage();  //首先检测SD卡是否存在
    }
	
	/**
	 * 检测手机是否存在SD卡,网络连接是否打开
	 */
	private void checkSoftStage(){
		if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){  //判断是否存在SD卡
//			String rootPath = Environment.getExternalStorageDirectory().getPath();  //获取SD卡的根目录
			File file = new File(imgPath);
			if(!file.exists()){
				file.mkdir();
			}
		}else{
			new AlertDialog.Builder(this).setMessage("检测到手机没有存储卡！请插入手机存储卡再开启本应用。")
				.setPositiveButton("确定", new DialogInterface.OnClickListener() {
					@Override
					public void onClick(DialogInterface dialog, int which) {
						finish();
					}
				}).show();
		}
	}
	
	/**
	 * 点击拍照按钮,启动拍照
	 */
	private final OnClickListener TakePicListener = new OnClickListener(){
		@Override
		public void onClick(View v) {
			mCamera.autoFocus(new AutoFoucus());  //自动对焦
		}
	};
	
	/**
	 * 自动对焦后拍照
	 * @author aokunsang
	 * @Date 2011-12-5
	 */
	private final class AutoFoucus implements AutoFocusCallback{
		@Override
		public void onAutoFocus(boolean success, Camera camera) {
			if(success && mCamera!=null){
				mCamera.takePicture(mShutterCallback, null, mPictureCallback);
			}
		}
	}
	/**
	 * 重点对象、 此处实例化了一个本界面的PictureCallback
	 * 当用户拍完一张照片的时候触发，这时候对图片处理并保存操作。
	 * 
	 */
	private final PictureCallback mPictureCallback = new PictureCallback() {
		@Override
		public void onPictureTaken(byte[] data, Camera camera) {
			try {
				String fileName = System.currentTimeMillis()+".jpg";
				File file = new File(imgPath,fileName);
				Bitmap bm = BitmapFactory.decodeByteArray(data, 0, data.length);
				BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
				bm.compress(Bitmap.CompressFormat.JPEG, 60, bos);
				bos.flush();
				bos.close();
				
				Intent intent = new Intent(TakePhotoAct.this,PictureViewAct.class);
				intent.putExtra("imagePath", file.getPath());
				startActivity(intent);
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	};
	/** 
	* 在相机快门关闭时候的回调接口，通过这个接口来通知用户快门关闭的事件， 
	* 普通相机在快门关闭的时候都会发出响声，根据需要可以在该回调接口中定义各种动作， 例如：使设备震动 
	*/  
	private final ShutterCallback mShutterCallback = new ShutterCallback() {  
		public void onShutter() {  
			Log.d("ShutterCallback", "...onShutter...");  
		}  
	};
	
	@Override
	/**
	 * 初始化相机参数，比如相机的参数: 像素, 大小,格式
	 */
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {
		Camera.Parameters param = mCamera.getParameters();
		/**
		 * 设置拍照图片格式
		 */
		param.setPictureFormat(PixelFormat.JPEG);
		/**
		 * 设置预览尺寸【这里需要注意：预览尺寸有些数字正确，有些会报错，不清楚为啥】
		 */
		//param.setPreviewSize(320, 240);
		/**
		 * 设置图片大小
		 */
		param.setPictureSize(Const.width, Const.height);
		mCamera.setParameters(param);
		/**
		 * 开始预览
		 */
		mCamera.startPreview();
	}
	@Override
	/**
	 * 打开相机,设置预览
	 */
	public void surfaceCreated(SurfaceHolder holder) {
		try {
			mCamera = Camera.open();  //打开摄像头
			mCamera.setPreviewDisplay(holder);
		} catch (IOException e) {
			mCamera.release();
			mCamera = null;
		}
	}
	
	@Override
	/**
	 * 预览界面被关闭时，或者停止相机拍摄;释放相机资源
	 */
	public void surfaceDestroyed(SurfaceHolder holder) {
		mCamera.stopPreview();
		if(mCamera!=null) mCamera.release();
		mCamera = null;
	}
	
	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		if(keyCode == KeyEvent.KEYCODE_CAMERA){   //按下相机实体按键，启动本程序照相功能
			mCamera.autoFocus(new AutoFoucus());  //自动对焦
			return true;
		}else{
			return false;
		}
	}
}

??xml：

Xml代码

<?xml?version="1.0"?encoding="utf-8"?>??
<LinearLayout?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/surface_camera"??
????????android:layout_width="fill_parent"??
????????android:layout_height="fill_parent"??
????????android:layout_weight="1"??
????/>??
<LinearLayout? ??
????android:orientation="horizontal"??
????android:layout_width="fill_parent"??
????android:layout_height="wrap_content">??
???? ??
????<Button? ??
????????android:text="拍照"??
????????android:layout_width="wrap_content"??
????????android:layout_height="wrap_content"??
????????android:id="@+id/takepic"??
????/>??
????<Button? ??
????????android:text="退出"??
????????android:layout_width="wrap_content"??
????????android:layout_height="wrap_content"??
????????android:id="@+id/exit"??
????/>??
</LinearLayout>??
</LinearLayout>??

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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/surface_camera"
		android:layout_width="fill_parent"
		android:layout_height="fill_parent"
		android:layout_weight="1"
	/>
<LinearLayout 
	android:orientation="horizontal"
	android:layout_width="fill_parent"
	android:layout_height="wrap_content">
	
	<Button 
		android:text="拍照"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:id="@+id/takepic"
	/>
	<Button 
		android:text="退出"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:id="@+id/exit"
	/>
</LinearLayout>
</LinearLayout>

?预览功能：

Java代码

import?java.io.File; ??
import?java.util.ArrayList; ??
import?java.util.List; ??
??
import?android.app.Activity; ??
import?android.app.AlertDialog; ??
import?android.content.ComponentName; ??
import?android.content.DialogInterface; ??
import?android.content.Intent; ??
import?android.graphics.Bitmap; ??
import?android.graphics.BitmapFactory; ??
import?android.graphics.drawable.BitmapDrawable; ??
import?android.os.Bundle; ??
import?android.os.Environment; ??
import?android.util.Log; ??
import?android.view.Menu; ??
import?android.view.MenuItem; ??
import?android.view.MotionEvent; ??
import?android.view.View; ??
import?android.view.View.OnTouchListener; ??
import?android.view.animation.AnimationUtils; ??
import?android.widget.AdapterView; ??
import?android.widget.Gallery; ??
import?android.widget.ImageSwitcher; ??
import?android.widget.ImageView; ??
import?android.widget.LinearLayout.LayoutParams; ??
import?android.widget.ViewSwitcher.ViewFactory; ??
??
import?com.peacemap.photo.adapter.ImageAdapter; ??
import?com.peacemap.photo.po.Const; ??
??
/** ?
?*?图片浏览 ?
?*?@author?aokunsang ?
?*?@Date?2011-12-6 ?
?*/??
public?class?PhotoScanAct?extends?Activity?implements?ViewFactory{ ??
??
???? ??
????private?static?String?imgPath?=?Environment.getExternalStorageDirectory().getPath()?+?"/"+Const.imageDir; ??
???? ??
????private?ImageSwitcher?imageSwitcher;?? ??
????private?Gallery?gallery; ??
????private?List<String>?photoList; ??
????private?int?downX,upX; ??
????private?String?newFilePath; ??
???? ??
????@Override??
????protected?void?onCreate(Bundle?savedInstanceState)?{ ??
????????super.onCreate(savedInstanceState); ??
????????setContentView(R.layout.photoscan); ??
???????? ??
????????photoList?=?readFileList(); ??
???????? ??
????????imageSwitcher?=?(ImageSwitcher)findViewById(R.id.switcher); ??
????????imageSwitcher.setFactory(this); ??
????????/* ?
?????????*?淡入淡出效果 ?
?????????*/??
????????imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,?? ??
????????????????android.R.anim.fade_in));?? ??
????????imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,?? ??
????????????????android.R.anim.fade_out)); ??
????????imageSwitcher.setOnTouchListener(touchListener); ??
????????gallery?=?(Gallery)findViewById(R.id.gallery); ??
????????gallery.setAdapter(new?ImageAdapter(this,?photoList)); ??
????????gallery.setOnItemSelectedListener(new?AdapterView.OnItemSelectedListener()?{ ??
????????????@Override??
????????????public?void?onItemSelected(AdapterView<?>?arg0,?View?arg1, ??
????????????????????int?position,?long?when)?{ ??
????????????????newFilePath?=?photoList.get(position); ??
????????????????Bitmap?bm?=?BitmapFactory.decodeFile(photoList.get(position)); ??
????????????????BitmapDrawable?bd?=?new?BitmapDrawable(bm); ??
????????????????imageSwitcher.setImageDrawable(bd); ??
????????????} ??
????????????@Override??
????????????public?void?onNothingSelected(AdapterView<?>?arg0)?{} ??
????????}); ??
????} ??
???? ??
????/** ?
?????*?注册一个触摸事件 ?
?????*/??
????private?OnTouchListener?touchListener?=?new?View.OnTouchListener()?{ ??
????????@Override??
????????public?boolean?onTouch(View?v,?MotionEvent?event)?{ ??
?????????????if(event.getAction()==MotionEvent.ACTION_DOWN)?? ??
????????????????{?? ??
????????????????????downX=(int)?event.getX();//取得按下时的坐标????
????????????????????return?true;?? ??
????????????????}?? ??
????????????????else?if(event.getAction()==MotionEvent.ACTION_UP)?? ??
????????????????{?? ??
????????????????????upX=(int)?event.getX();//取得松开时的坐标????
????????????????????int?index=0;?? ??
????????????????????if(upX-downX>100)//从左拖到右，即看前一张????
????????????????????{?? ??
????????????????????????//如果是第一，则去到尾部????
????????????????????????if(gallery.getSelectedItemPosition()==0)?? ??
???????????????????????????index=gallery.getCount()-1;?? ??
????????????????????????else?? ??
????????????????????????????index=gallery.getSelectedItemPosition()-1;?? ??
????????????????????}?? ??
????????????????????else?if(downX-upX>100)//从右拖到左，即看后一张????
????????????????????{?? ??
????????????????????????//如果是最后，则去到第一????
????????????????????????if(gallery.getSelectedItemPosition()==(gallery.getCount()-1))?? ??
????????????????????????????index=0;?? ??
????????????????????????else?? ??
????????????????????????????index=gallery.getSelectedItemPosition()+1;?? ??
????????????????????}?? ??
????????????????????//改变gallery图片所选，自动触发ImageSwitcher的setOnItemSelectedListener????
????????????????????gallery.setSelection(index,?true);?? ??
????????????????????return?true;?? ??
????????????????}?? ??
????????????????return?false;?? ??
????????????} ??
????}; ??
????/** ?
?????*?获取SD卡中的所有图片路径 ?
?????*?@return ?
?????*/??
????private?List<String>?readFileList(){ ??
????????List<String>?fileList?=?new?ArrayList<String>(); ??
????????File?fileDir?=?new?File(imgPath); ??
????????File[]?files?=?fileDir.listFiles(); ??
????????if(files!=null){ ??
????????????for(File?file:files){ ??
????????????????String?fileName?=?file.getName(); ??
????????????????if?(fileName.lastIndexOf(".")?>?0?? ??
????????????????????????&&?fileName.substring(fileName.lastIndexOf(".")?+?1,?? ??
????????????????????????fileName.length()).equals("jpg")){ ??
????????????????????fileList.add(file.getPath()); ??
????????????????} ??
????????????} ??
????????} ??
????????return?fileList; ??
????} ??
??
????@Override??
????public?View?makeView()?{ ??
????????ImageView?imageView?=?new?ImageView(this); ??
????????imageView.setScaleType(ImageView.ScaleType.CENTER); ??
????????imageView.setLayoutParams(new?ImageSwitcher.LayoutParams(//自适应图片大小????
????????????????LayoutParams.FILL_PARENT,?LayoutParams.FILL_PARENT)); ??
????????return?imageView; ??
????} ??
???? ??
????//声明2个menu键按钮??
????public?final?static?int?ITEM_1_ID?=?Menu.FIRST; ??
????public?final?static?int?ITEM_2_ID?=?Menu.FIRST+1; ??
???? ??
????@Override??
????public?boolean?onCreateOptionsMenu(Menu?menu)?{ ??
????????super.onCreateOptionsMenu(menu); ??
????????menu.add(0,?ITEM_1_ID,?0,?"我要上传"); ??
????????menu.add(0,?ITEM_2_ID,?1,?"我要拍照"); ??
????????return?true; ??
????} ??
???? ??
????@Override??
????public?boolean?onOptionsItemSelected(MenuItem?item)?{ ??
????????super.onOptionsItemSelected(item); ??
????????switch(item.getItemId()){ ??
????????????case?1:{??//调出系统设置界面??
????????????????Intent?intent?=?new?Intent(PhotoScanAct.this,PictureViewAct.class); ??
????????????????intent.putExtra("imagePath",newFilePath); ??
????????????????startActivity(intent); ??
????????????????break; ??
????????????} ??
????????????case?2:{?//拍照??
????????????????startActivity(new?Intent(this,TakePhotoAct.class)); ??
????????????????break; ??
????????????} ??
????????} ??
????????return?true; ??
????} ??
}??

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.ComponentName;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ViewSwitcher.ViewFactory;

import com.peacemap.photo.adapter.ImageAdapter;
import com.peacemap.photo.po.Const;

/**
 * 图片浏览
 * @author aokunsang
 * @Date 2011-12-6
 */
public class PhotoScanAct extends Activity implements ViewFactory{

	
	private static String imgPath = Environment.getExternalStorageDirectory().getPath() + "/"+Const.imageDir;
	
	private ImageSwitcher imageSwitcher;  
    private Gallery gallery;
    private List<String> photoList;
    private int downX,upX;
    private String newFilePath;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.photoscan);
		
		photoList = readFileList();
		
		imageSwitcher = (ImageSwitcher)findViewById(R.id.switcher);
		imageSwitcher.setFactory(this);
		/*
		 * 淡入淡出效果
		 */
		imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,  
                android.R.anim.fade_in));  
		imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,  
                android.R.anim.fade_out));
		imageSwitcher.setOnTouchListener(touchListener);
		gallery = (Gallery)findViewById(R.id.gallery);
		gallery.setAdapter(new ImageAdapter(this, photoList));
		gallery.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
			@Override
			public void onItemSelected(AdapterView<?> arg0, View arg1,
					int position, long when) {
				newFilePath = photoList.get(position);
				Bitmap bm = BitmapFactory.decodeFile(photoList.get(position));
				BitmapDrawable bd = new BitmapDrawable(bm);
				imageSwitcher.setImageDrawable(bd);
			}
			@Override
			public void onNothingSelected(AdapterView<?> arg0) {}
		});
	}
	
	/**
	 * 注册一个触摸事件
	 */
	private OnTouchListener touchListener = new View.OnTouchListener() {
		@Override
		public boolean onTouch(View v, MotionEvent event) {
			 if(event.getAction()==MotionEvent.ACTION_DOWN)  
                {  
                    downX=(int) event.getX();//取得按下时的坐标  
                    return true;  
                }  
                else if(event.getAction()==MotionEvent.ACTION_UP)  
                {  
                    upX=(int) event.getX();//取得松开时的坐标  
                    int index=0;  
                    if(upX-downX>100)//从左拖到右，即看前一张  
                    {  
                        //如果是第一，则去到尾部  
                        if(gallery.getSelectedItemPosition()==0)  
                           index=gallery.getCount()-1;  
                        else  
                            index=gallery.getSelectedItemPosition()-1;  
                    }  
                    else if(downX-upX>100)//从右拖到左，即看后一张  
                    {  
                        //如果是最后，则去到第一  
                        if(gallery.getSelectedItemPosition()==(gallery.getCount()-1))  
                            index=0;  
                        else  
                            index=gallery.getSelectedItemPosition()+1;  
                    }  
                    //改变gallery图片所选，自动触发ImageSwitcher的setOnItemSelectedListener  
                    gallery.setSelection(index, true);  
                    return true;  
                }  
                return false;  
            }
	};
	/**
	 * 获取SD卡中的所有图片路径
	 * @return
	 */
	private List<String> readFileList(){
		List<String> fileList = new ArrayList<String>();
		File fileDir = new File(imgPath);
		File[] files = fileDir.listFiles();
		if(files!=null){
			for(File file:files){
				String fileName = file.getName();
				if (fileName.lastIndexOf(".") > 0  
						&& fileName.substring(fileName.lastIndexOf(".") + 1,  
						fileName.length()).equals("jpg")){
					fileList.add(file.getPath());
				}
			}
		}
		return fileList;
	}

	@Override
	public View makeView() {
		ImageView imageView = new ImageView(this);
		imageView.setScaleType(ImageView.ScaleType.CENTER);
		imageView.setLayoutParams(new ImageSwitcher.LayoutParams(//自适应图片大小  
                LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
		return imageView;
	}
	
	//声明2个menu键按钮
	public final static int ITEM_1_ID = Menu.FIRST;
	public final static int ITEM_2_ID = Menu.FIRST+1;
	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		super.onCreateOptionsMenu(menu);
		menu.add(0, ITEM_1_ID, 0, "我要上传");
		menu.add(0, ITEM_2_ID, 1, "我要拍照");
		return true;
	}
	
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		super.onOptionsItemSelected(item);
		switch(item.getItemId()){
			case 1:{  //调出系统设置界面
				Intent intent = new Intent(PhotoScanAct.this,PictureViewAct.class);
				intent.putExtra("imagePath",newFilePath);
				startActivity(intent);
				break;
			}
			case 2:{ //拍照
				startActivity(new Intent(this,TakePhotoAct.class));
				break;
			}
		}
		return true;
	}
}

??ImageAdapter适配器：

Java代码

import?java.util.List; ??
??
import?android.content.Context; ??
import?android.graphics.Bitmap; ??
import?android.graphics.BitmapFactory; ??
import?android.view.View; ??
import?android.view.ViewGroup; ??
import?android.widget.BaseAdapter; ??
import?android.widget.Gallery; ??
import?android.widget.ImageView; ??
??
/** ?
?*?图片适配器 ?
?*?@author?aokunsang ?
?*?@Date?2011-12-6 ?
?*/??
public?class?ImageAdapter?extends?BaseAdapter?{ ??
??
????private?List<String>?picList; ??
????private?Context?mContext; ??
????public?ImageAdapter(Context?mContext,List<String>?picList){ ??
????????this.mContext?=?mContext; ??
????????this.picList?=?picList; ??
????} ??
???? ??
????@Override??
????public?int?getCount()?{ ??
????????return?picList.size(); ??
????} ??
??
????/*?(non-Javadoc)?
?????*?@see?android.widget.Adapter#getItem(int)?
?????*/??
????@Override??
????public?Object?getItem(int?position)?{ ??
????????//?TODO?Auto-generated?method?stub??
????????return?picList.get(position); ??
????} ??
??
????/*?(non-Javadoc)?
?????*?@see?android.widget.Adapter#getItemId(int)?
?????*/??
????@Override??
????public?long?getItemId(int?position)?{ ??
????????//?TODO?Auto-generated?method?stub??
????????return?position; ??
????} ??
??
????@Override??
????public?View?getView(int?position,?View?convertView,?ViewGroup?parent)?{ ??
????????ImageView?image?=?new?ImageView(mContext); ??
????????Bitmap?bm?=?BitmapFactory.decodeFile(picList.get(position)); ??
????????image.setImageBitmap(bm); ??
????????image.setScaleType(ImageView.ScaleType.CENTER_CROP); ??
????????image.setLayoutParams(new?Gallery.LayoutParams(100,?100)); ??
????????return?image; ??
????} ??
}??

import java.util.List;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;

/**
 * 图片适配器
 * @author aokunsang
 * @Date 2011-12-6
 */
public class ImageAdapter extends BaseAdapter {

	private List<String> picList;
	private Context mContext;
	public ImageAdapter(Context mContext,List<String> picList){
		this.mContext = mContext;
		this.picList = picList;
	}
	
	@Override
	public int getCount() {
		return picList.size();
	}

	/* (non-Javadoc)
	 * @see android.widget.Adapter#getItem(int)
	 */
	@Override
	public Object getItem(int position) {
		// TODO Auto-generated method stub
		return picList.get(position);
	}

	/* (non-Javadoc)
	 * @see android.widget.Adapter#getItemId(int)
	 */
	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		ImageView image = new ImageView(mContext);
		Bitmap bm = BitmapFactory.decodeFile(picList.get(position));
		image.setImageBitmap(bm);
		image.setScaleType(ImageView.ScaleType.CENTER_CROP);
		image.setLayoutParams(new Gallery.LayoutParams(100, 100));
		return image;
	}
}

?xml:

Xml代码

<?xml?version="1.0"?encoding="utf-8"?>??
<RelativeLayout??
??xmlns:android="http://schemas.android.com/apk/res/android"??
??android:layout_width="match_parent"??
??android:layout_height="match_parent">??
?? ??
????<ImageSwitcher? ??
????????android:id="@+id/switcher"??
????????android:layout_width="match_parent"??
????????android:layout_height="match_parent"??
????></ImageSwitcher>??
???? ??
???<Gallery? ??
????????android:id="@+id/gallery"??
????????android:layout_width="match_parent"??
????????android:background="#55000000"??
????????android:layout_height="100dip"??
????????android:layout_alignParentBottom="true"?? ??
????????android:layout_alignParentLeft="true"??
????????android:gravity="center_vertical"??
????????android:spacing="8dip"??
???/>? ??
</RelativeLayout>??

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent">
  
    <ImageSwitcher 
    	android:id="@+id/switcher"
		android:layout_width="match_parent"
		android:layout_height="match_parent"
    ></ImageSwitcher>
    
   <Gallery 
   		android:id="@+id/gallery"
   		android:layout_width="match_parent"
   		android:background="#55000000"
   		android:layout_height="100dip"
   		android:layout_alignParentBottom="true"  
        android:layout_alignParentLeft="true"
   		android:gravity="center_vertical"
   		android:spacing="8dip"
   /> 
</RelativeLayout>

?上传工具类：

Java代码

import?java.io.BufferedReader; ??
import?java.io.DataOutputStream; ??
import?java.io.FileInputStream; ??
import?java.io.InputStream; ??
import?java.io.InputStreamReader; ??
import?java.net.HttpURLConnection; ??
import?java.net.URL; ??
import?java.util.Map; ??
import?java.util.Map.Entry; ??
??
import?android.util.Log; ??
??
import?com.peacemap.photo.po.FileInfo; ??
??
/** ?
?*?POST上传文件 ?
?*?@author?aokunsang ?
?*?@Date?2011-12-6 ?
?*/??
public?class?PostFile?{ ??
??
????private?static?PostFile?postFile?=?new?PostFile(); ??
???? ??
????private?final?static?String?LINEND?=?"\r\n"; ??
????private?final?static?String?BOUNDARY?=?"---------------------------7da2137580612";?//数据分隔线??
????private?final?static?String?PREFIX?=?"--"; ??
????private?final?static?String?MUTIPART_FORMDATA?=?"multipart/form-data"; ??
????private?final?static?String?CHARSET?=?"utf-8"; ??
????private?final?static?String?CONTENTTYPE?=?"application/octet-stream"; ??
???? ??
????private?PostFile(){} ??
????public?static?PostFile?getInstance(){ ??
????????return?postFile; ??
????} ??
???? ??
????/** ?
?????*?HTTP上传文件 ?
?????*?@param?actionUrl??请求服务器的路径?
?????*?@param?params?????传递的表单内容?
?????*?@param?files??????多个文件信息?
?????*?@return ?
?????*/??
????public?String?post(String?actionUrl,Map<String,String>?params,FileInfo[]?files){ ??
????????try?{ ??
????????????URL?url?=?new?URL(actionUrl); ??
????????????HttpURLConnection?urlConn?=?(HttpURLConnection)url.openConnection(); ??
????????????urlConn.setDoOutput(true);???//允许输出??
????????????urlConn.setDoInput(true);???//允许输入??
????????????urlConn.setUseCaches(false); ??
????????????urlConn.setRequestMethod("POST"); ??
????????????urlConn.setRequestProperty("connection",?"Keep-Alive"); ??
????????????urlConn.setRequestProperty("Charset",?CHARSET); ??
????????????urlConn.setRequestProperty("Content-Type",?MUTIPART_FORMDATA+";boundary="+BOUNDARY); ??
???????????? ??
????????????DataOutputStream?dos?=?new?DataOutputStream(urlConn.getOutputStream()); ??
????????????//构建表单数据??
????????????String?entryText?=?bulidFormText(params); ??
????????????Log.i("-------描述信息---------------",?entryText); ??
????????????dos.write(entryText.getBytes()); ??
???????????? ??
????????????StringBuffer?sb?=?new?StringBuffer(""); ??
???? ??
????????????for(FileInfo?file?:?files){ ??
????????????????sb.append(PREFIX).append(BOUNDARY).append(LINEND); ??
????????????????sb.append("Content-Disposition:?form-data;?name=\""+file.getFileTextName()+"\";?filename=\""+file.getFile().getAbsolutePath()+"\""+LINEND); ??
????????????????sb.append("Content-Type:"+CONTENTTYPE+";charset="+CHARSET+LINEND); ??
????????????????sb.append(LINEND); ??
????????????????dos.write(sb.toString().getBytes()); ??
???????????????? ??
????????????????InputStream?is?=?new?FileInputStream(file.getFile()); ??
????????????????byte[]?buffer?=?new?byte[1024]; ??
????????????????int?len?=?0; ??
????????????????while?((len?=?is.read(buffer))?!=?-1)?{ ??
????????????????????dos.write(buffer,?0,?len); ??
????????????????} ??
????????????????is.close(); ??
????????????????dos.write(LINEND.getBytes()); ??
????????????} ??
????????????//请求的结束标志??
????????????byte[]?end_data?=?(PREFIX?+?BOUNDARY?+?PREFIX?+?LINEND).getBytes(); ??
????????????dos.write(end_data); ??
????????????dos.flush(); ??
????//-----------------------------------??发送请求数据结束??----------------------------??
???????????? ??
????//----------------------------------???接收返回信息?------------------------??
???????????? ??
????????????int?code?=?urlConn.getResponseCode(); ??
????????????if(code!=200){ ??
????????????????urlConn.disconnect(); ??
????????????????return?""; ??
????????????}else{ ??
????????????????BufferedReader?br?=?new?BufferedReader(new?InputStreamReader(urlConn.getInputStream())); ??
????????????????String?result?=?""; ??
????????????????String?line?=?null; ??
????????????????while((line?=?br.readLine())!=null){ ??
????????????????????result?+=?line; ??
????????????????} ??
????????????????br.close(); ??
????????????????urlConn.disconnect(); ??
????????????????return?result; ??
????????????} ??
????????}?catch?(Exception?e)?{ ??
????????????Log.e("--------上传图片错误--------",?e.getMessage()); ??
????????????return?null; ??
????????} ??
????} ??
???? ??
????/** ?
?????*?HTTP上传单个文件 ?
?????*?@param?actionUrl??请求服务器的路径?
?????*?@param?params?????传递的表单内容?
?????*?@param?files??????单个文件信息?
?????*?@return ?
?????*/??
????public?String?post(String?actionUrl,Map<String,String>?params,FileInfo?fileInfo){ ??
????????return?post(actionUrl,?params,?new?FileInfo[]{fileInfo}); ??
????} ??
???? ??
????/** ?
?????*?封装表单文本数据 ?
?????*?@param?paramText?
?????*?@return ?
?????*/??
????private?String?bulidFormText(Map<String,String>?paramText){ ??
????????if(paramText==null?||?paramText.isEmpty())?return?""; ??
????????StringBuffer?sb?=?new?StringBuffer(""); ??
????????for(Entry<String,String>?entry?:?paramText.entrySet()){? ??
????????????sb.append(PREFIX).append(BOUNDARY).append(LINEND); ??
????????????sb.append("Content-Disposition:form-data;name=\""??
????????????????????+?entry.getKey()?+?"\""?+?LINEND); ??
//??????????sb.append("Content-Type:text/plain;charset="?+?CHARSET?+?LINEND);??
????????????sb.append(LINEND); ??
????????????sb.append(entry.getValue()); ??
????????????sb.append(LINEND); ??
????????} ??
????????return?sb.toString(); ??
????} ??
????/** ?
?????*?封装文件文本数据 ?
?????*?@param?files ?
?????*?@return ?
?????*/??
????private?String?buildFromFile(FileInfo[]?files){ ??
????????StringBuffer?sb?=?new?StringBuffer(); ??
????????for(FileInfo?file?:?files){ ??
????????????sb.append(PREFIX).append(BOUNDARY).append(LINEND); ??
????????????sb.append("Content-Disposition:?form-data;?name=\""+file.getFileTextName()+"\";?filename=\""+file.getFile().getAbsolutePath()+"\""+LINEND); ??
????????????sb.append("Content-Type:"+CONTENTTYPE+";charset="+CHARSET+LINEND); ??
????????????sb.append(LINEND); ??
????????} ??
????????return?sb.toString(); ??
????} ??
}??

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;
import java.util.Map.Entry;

import android.util.Log;

import com.peacemap.photo.po.FileInfo;

/**
 * POST上传文件
 * @author aokunsang
 * @Date 2011-12-6
 */
public class PostFile {

	private static PostFile postFile = new PostFile();
	
	private final static String LINEND = "\r\n";
	private final static String BOUNDARY = "---------------------------7da2137580612"; //数据分隔线
	private final static String PREFIX = "--";
	private final static String MUTIPART_FORMDATA = "multipart/form-data";
	private final static String CHARSET = "utf-8";
	private final static String CONTENTTYPE = "application/octet-stream";
	
	private PostFile(){}
	public static PostFile getInstance(){
		return postFile;
	}
	
	/**
	 * HTTP上传文件
	 * @param actionUrl  请求服务器的路径
	 * @param params     传递的表单内容
	 * @param files      多个文件信息
	 * @return
	 */
	public String post(String actionUrl,Map<String,String> params,FileInfo[] files){
		try {
			URL url = new URL(actionUrl);
			HttpURLConnection urlConn = (HttpURLConnection)url.openConnection();
			urlConn.setDoOutput(true);   //允许输出
			urlConn.setDoInput(true);   //允许输入
			urlConn.setUseCaches(false);
			urlConn.setRequestMethod("POST");
			urlConn.setRequestProperty("connection", "Keep-Alive");
			urlConn.setRequestProperty("Charset", CHARSET);
			urlConn.setRequestProperty("Content-Type", MUTIPART_FORMDATA+";boundary="+BOUNDARY);
			
			DataOutputStream dos = new DataOutputStream(urlConn.getOutputStream());
			//构建表单数据
			String entryText = bulidFormText(params);
			Log.i("-------描述信息---------------", entryText);
			dos.write(entryText.getBytes());
			
			StringBuffer sb = new StringBuffer("");
	
			for(FileInfo file : files){
				sb.append(PREFIX).append(BOUNDARY).append(LINEND);
				sb.append("Content-Disposition: form-data; name=\""+file.getFileTextName()+"\"; filename=\""+file.getFile().getAbsolutePath()+"\""+LINEND);
				sb.append("Content-Type:"+CONTENTTYPE+";charset="+CHARSET+LINEND);
				sb.append(LINEND);
				dos.write(sb.toString().getBytes());
				
				InputStream is = new FileInputStream(file.getFile());
				byte[] buffer = new byte[1024];
                int len = 0;
                while ((len = is.read(buffer)) != -1) {
                	dos.write(buffer, 0, len);
                }
                is.close();
                dos.write(LINEND.getBytes());
			}
			//请求的结束标志
			byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
			dos.write(end_data);
			dos.flush();
	//-----------------------------------  发送请求数据结束  ----------------------------
			
    //----------------------------------   接收返回信息 ------------------------
			
			int code = urlConn.getResponseCode();
			if(code!=200){
				urlConn.disconnect();
				return "";
			}else{
				BufferedReader br = new BufferedReader(new InputStreamReader(urlConn.getInputStream()));
				String result = "";
				String line = null;
				while((line = br.readLine())!=null){
					result += line;
				}
				br.close();
				urlConn.disconnect();
				return result;
			}
		} catch (Exception e) {
			Log.e("--------上传图片错误--------", e.getMessage());
			return null;
		}
	}
	
	/**
	 * HTTP上传单个文件
	 * @param actionUrl  请求服务器的路径
	 * @param params     传递的表单内容
	 * @param files      单个文件信息
	 * @return
	 */
	public String post(String actionUrl,Map<String,String> params,FileInfo fileInfo){
		return post(actionUrl, params, new FileInfo[]{fileInfo});
	}
	
	/**
	 * 封装表单文本数据
	 * @param paramText
	 * @return
	 */
	private String bulidFormText(Map<String,String> paramText){
		if(paramText==null || paramText.isEmpty()) return "";
		StringBuffer sb = new StringBuffer("");
		for(Entry<String,String> entry : paramText.entrySet()){ 
			sb.append(PREFIX).append(BOUNDARY).append(LINEND);
			sb.append("Content-Disposition:form-data;name=\""
                    + entry.getKey() + "\"" + LINEND);
//			sb.append("Content-Type:text/plain;charset=" + CHARSET + LINEND);
			sb.append(LINEND);
			sb.append(entry.getValue());
			sb.append(LINEND);
		}
		return sb.toString();
	}
	/**
	 * 封装文件文本数据
	 * @param files
	 * @return
	 */
	private String buildFromFile(FileInfo[] files){
		StringBuffer sb = new StringBuffer();
		for(FileInfo file : files){
			sb.append(PREFIX).append(BOUNDARY).append(LINEND);
			sb.append("Content-Disposition: form-data; name=\""+file.getFileTextName()+"\"; filename=\""+file.getFile().getAbsolutePath()+"\""+LINEND);
			sb.append("Content-Type:"+CONTENTTYPE+";charset="+CHARSET+LINEND);
			sb.append(LINEND);
		}
		return sb.toString();
	}
}

-------------------------------------我是个华丽的分割线，哇哈哈-----------------------------------------------

做完这个拍照后，感觉功能太简单，比如：设置图片大小，白天夜晚照相等等一些系统照相机带的功能都没有，因此用在项目中感觉不炫。然后就用了简单点的，直接调用系统照相机了。本来想着简单呢，后来也遇到点问题。

?? ?(1)根据Camera Activity返回的时候，会带一个名为data的 Bitmap对象，照片的缩略图（这个地方可以做各种修改，我没用到不说了），上代码：

Java代码

?@Override?? ??
???public?void?onCreate(Bundle?savedInstanceState)?{ ??
???????super.onCreate(savedInstanceState); ??
???????checkSoftStage(); ??
??????? ??
???????try?{ ??
???????????Intent?intent?=?new?Intent(MediaStore.ACTION_IMAGE_CAPTURE); ??
???????????startActivityForResult(intent,?TAKE_PICTURE);? ??
???????}?catch?(Exception?e)?{ ??
???????????e.printStackTrace(); ??
???????} ??
} ??
?/** ?
?????*?检测手机是否存在SD卡,网络连接是否打开?
?????*/??
????private?void?checkSoftStage(){ ??
????????if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){??//判断是否存在SD卡??
????????????File?file?=?new?File(imgPath); ??
????????????if(!file.exists()){ ??
????????????????file.mkdir(); ??
????????????} ??
????????}else{ ??
????????????new?AlertDialog.Builder(this).setMessage("检测到手机没有存储卡！请插入手机存储卡再开启本应用。") ??
????????????????.setPositiveButton("确定",?new?DialogInterface.OnClickListener()?{ ??
????????????????????@Override??
????????????????????public?void?onClick(DialogInterface?dialog,?int?which)?{ ??
????????????????????????finish(); ??
????????????????????} ??
????????????????}).show(); ??
????????} ??
????} ??
?protected?void?onActivityResult(int?requestCode,?int?resultCode,?Intent?data)??{????????? ??
????????????if?(resultCode?==?TAKE_PICTURE)??????{?????????? ??
????????????????//??拍照Activity保存图像数据的key是data，返回的数据类型是Bitmap对象????????????
????????????????Bitmap?cameraBitmap?=?(Bitmap)?data.getExtras().get("/sdcard/rtest.jpg");????????? ??
????????????????//??在ImageView组件中显示拍摄的照片???????????
????????????????image.setImageBitmap(cameraBitmap);? ??
??
????????????????//?做自己的业务操作。。。。??
????????????????}?????? ??
??????super.onActivityResult(requestCode,?resultCode,?data);?? ??
????????????????}???

 @Override  
   public void onCreate(Bundle savedInstanceState) {
	   super.onCreate(savedInstanceState);
	   checkSoftStage();
	   
	   try {
		   Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
		   startActivityForResult(intent, TAKE_PICTURE); 
	   } catch (Exception e) {
		   e.printStackTrace();
	   }
}
 /**
	 * 检测手机是否存在SD卡,网络连接是否打开
	 */
	private void checkSoftStage(){
		if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){  //判断是否存在SD卡
			File file = new File(imgPath);
			if(!file.exists()){
				file.mkdir();
			}
		}else{
			new AlertDialog.Builder(this).setMessage("检测到手机没有存储卡！请插入手机存储卡再开启本应用。")
				.setPositiveButton("确定", new DialogInterface.OnClickListener() {
					@Override
					public void onClick(DialogInterface dialog, int which) {
						finish();
					}
				}).show();
		}
	}
 protected void onActivityResult(int requestCode, int resultCode, Intent data)  {         
    		if (resultCode == TAKE_PICTURE)      {          
    			//  拍照Activity保存图像数据的key是data，返回的数据类型是Bitmap对象          
    			Bitmap cameraBitmap = (Bitmap) data.getExtras().get("/sdcard/rtest.jpg");         
				//  在ImageView组件中显示拍摄的照片         
    			image.setImageBitmap(cameraBitmap); 

                // 做自己的业务操作。。。。
    			}      
      super.onActivityResult(requestCode, resultCode, data);  
    		    }

??? (2)以上代码在我的小米手机上测试时，出现问题了。返回的name为data的Bitmap对象是个Null,我发现小米照完相片之后，他会先跳到一个预览的界面(系统自带的页面)，所以得不到Bitmap对象了。

因此我就先保存照片以及其路径，然后在onActivityResult中获取图片，做业务操作，代码如下：

Java代码

??public?void?onCreate(Bundle?savedInstanceState)?{ ??
???super.onCreate(savedInstanceState); ??
???checkSoftStage(); ??
??? ??
???try?{ ??
???????Intent?intent?=?new?Intent(MediaStore.ACTION_IMAGE_CAPTURE); ??
???????startActivityForResult(intent,?TAKE_PICTURE);? ??
???}?catch?(Exception?e)?{ ??
???????e.printStackTrace(); ??
???} ??
??? ??
???try?{ ??
???????Intent?intent?=?new?Intent(MediaStore.ACTION_IMAGE_CAPTURE); ??
???????String?fileName?=?System.currentTimeMillis()+".jpg"; ??
???????newImgPath?=?imgPath?+?"/"?+?fileName; ??
???????Uri?uri?=?Uri.fromFile(new?File(imgPath,fileName)); ??
???????intent.putExtra(MediaStore.EXTRA_OUTPUT,?uri); ??
???????startActivityForResult(intent,?TAKE_PICTURE);? ??
??????}?catch?(Exception?e)?{ ??
??????????e.printStackTrace(); ??
??????}? ??
??} ??
@Override? ??
??protected?void?onActivityResult(int?requestCode,? ??
???int?resultCode,?Intent?data)?{? ??
???????Log.i("--------图片路径---------",?"------"+newImgPath+"---------"); ??
??????//.....做一些业务操作??
????}?catch?(Exception?e)?{ ??
????????e.printStackTrace(); ??
????} ??
????super.onActivityResult(requestCode,?resultCode,?data); ??
??}??

文章来源:https://blog.csdn.net/liujianminghero/article/details/7467583
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