android 拍照和上传的实现代码

import java.io.ByteArrayOutputStream;   
import java.io.File;   
import android.app.Activity;   
import android.content.Intent;   
import android.graphics.Bitmap;   
import android.net.Uri;   
import android.os.Bundle;   
import android.os.Environment;   
import android.provider.MediaStore;   
import android.view.View;   
import android.view.View.OnClickListener;   
import android.widget.Button;   
import android.widget.ImageView;   
public class PhotoActivity extends Activity {   
    public static final int NONE = 0;   
    public static final int PHOTOHRAPH = 1;// 拍照   
    public static final int PHOTOZOOM = 2; // 缩放   
    public static final int PHOTORESOULT = 3;// 结果   
    public static final String IMAGE_UNSPECIFIED = "image/*";   
    ImageView imageView = null;   
    Button button0 = null;   
    Button button1 = null;   
    @Override  
    public void onCreate(Bundle savedInstanceState) {   
        super.onCreate(savedInstanceState);   
        setContentView(R.layout.photo);   
        imageView = (ImageView) findViewById(R.id.imageID);   
        button0 = (Button) findViewById(R.id.btn_01);   
        button1 = (Button) findViewById(R.id.btn_02);   
        button0.setOnClickListener(new OnClickListener() {   
            @Override  
            public void onClick(View v) {   
                Intent intent = new Intent(Intent.ACTION_PICK, null);   
                intent.setDataAndType(   
                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI,   
                        IMAGE_UNSPECIFIED);   
                startActivityForResult(intent, PHOTOZOOM);   
            }   
        });   
        button1.setOnClickListener(new OnClickListener() {   
            @Override  
            public void onClick(View v) {   
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);   
                intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(   
                        Environment.getExternalStorageDirectory(), "temp.jpg")));   
                startActivityForResult(intent, PHOTOHRAPH);   
            }   
        });   
    }   
    @Override  
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {   
        if (resultCode == NONE)   
            return;   
        // 拍照   
        if (requestCode == PHOTOHRAPH) {   
            // 设置文件保存路径这里放在跟目录下   
            File picture = new File(Environment.getExternalStorageDirectory()   
                    + "/temp.jpg");   
            startPhotoZoom(Uri.fromFile(picture));   
        }   
        if (data == null)   
            return;   
        // 读取相册缩放图片   
        if (requestCode == PHOTOZOOM) {   
            startPhotoZoom(data.getData());   
        }   
        // 处理结果   
        if (requestCode == PHOTORESOULT) {   
            Bundle extras = data.getExtras();   
            if (extras != null) {   
                Bitmap photo = extras.getParcelable("data");   
                ByteArrayOutputStream stream = new ByteArrayOutputStream();   
                photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 -   
                                                                        // 100)压缩文件   
                imageView.setImageBitmap(photo);   
            }   
        }   
        super.onActivityResult(requestCode, resultCode, data);   
    }   
    public void startPhotoZoom(Uri uri) {   
        Intent intent = new Intent("com.android.camera.action.CROP");   
        intent.setDataAndType(uri, IMAGE_UNSPECIFIED);   
        intent.putExtra("crop", "true");   
        // aspectX aspectY 是宽高的比例   
        intent.putExtra("aspectX", 1);   
        intent.putExtra("aspectY", 1);   
        // outputX outputY 是裁剪图片宽�?   
        intent.putExtra("outputX", 64);   
        intent.putExtra("outputY", 64);   
        intent.putExtra("return-data", true);   
        startActivityForResult(intent, PHOTORESOULT);   
    }   
}