android 调用相册-照相机封装

把这两个功能封装起来，经常使用到。

private static Uri photoUri;
	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 PHOTORESULT = 3;// 结果
	public static final String IMAGE_UNSPECIFIED = "image/*";
	/**
	 * 进入照相机
	 * @param activity
	 */
	public static void startCamera(Activity activity) {
		  Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//"android.media.action.IMAGE_CAPTURE"  
          ContentValues values = new ContentValues();    
          photoUri = activity.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);    
          intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, photoUri);  
          /**-----------------*/  
          activity.startActivityForResult(intent, PHOTOHRAPH);  
	}
	
	/**
	 * 进入相册
	 * @param activity
	 */
	public static  void startPhotoAlbum(Activity activity) {
		Intent intent = new Intent(Intent.ACTION_PICK, null);  
        intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);  
        activity.startActivityForResult(intent, PHOTOZOOM);
	}
	
	/**
	 * 裁剪照片 跳系统的activity
	 * @param activity
	 * @param uri
	 */
	public static void startPhotoZoom(Activity activity, 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 是裁剪图片宽高
		intent.putExtra("outputX", 300); // 决定图片的像素
		intent.putExtra("outputY", 300); // 决定图片的像素
		intent.putExtra("return-data", true);
		activity.startActivityForResult(intent, PHOTORESULT);
	}
	

    　　　　
	/**
	 * 相册||照相 结果返回处理 放在Activity的onActivityResult里
	 * @param activity
	 * @param requestCode
	 * @param resultCode
	 * @param data
	 * @return
	 */
	public static Object[] handleResultFromCameraOrPhotos(Activity activity ,int requestCode, int resultCode, Intent data) {
		 if (resultCode == NONE)  
	            return null;  
	        // 拍照  
	        if (requestCode == PHOTOHRAPH) {  
	        	AppContext applicationContext = (AppContext)activity.getApplicationContext();
				String name="temp";//+applicationContext.setNum();
				name="temp";
	        	String path = Environment.getExternalStorageDirectory()+"/"+name+".jpg";
	        	System.out.println(path);
	            File picture = new File(path);
	            photoUri = data.getData();
	            startPhotoZoom(activity,photoUri);  
	        }  
	          
	        if (data == null)  
	            return null;  
	          
	        // 读取相册缩放图片  
	        if (requestCode == PHOTOZOOM) { 
	        	photoUri = data.getData();
	            startPhotoZoom(activity,data.getData());  
	        }  
	        // 处理结果  
	        if (requestCode == PHOTORESULT) {  
	            Bundle extras = data.getExtras();  
	            if (extras != null) {  
	            	//photoUri = data.getData();
	            	String picPath = null;
	            	  String[] pojo = {MediaStore.Images.Media.DATA};  
	                  Cursor cursor = activity.managedQuery(photoUri, pojo, null, null,null);     
	                  if(cursor != null )  
	                  {  
	                	  
	                      int columnIndex = cursor.getColumnIndexOrThrow(pojo[0]);  
	                      cursor.moveToFirst();  
	                      picPath = cursor.getString(columnIndex);  
	                      //cursor.close();  
	                  }  
	            	
					Log.d("TAG", picPath +"");
	            	Bitmap photo = extras.getParcelable("data");  
	                ByteArrayOutputStream stream = new ByteArrayOutputStream();  
	                photo.compress(Bitmap.CompressFormat.JPEG, 100, stream);// (0 - 100)压缩文件  
	                Object[] hashMap = new Object[2];
	                hashMap[1] = photo;
	                hashMap[0] = picPath;
	                //photo.recycle();
	                return hashMap; 
	            }
	        }
			return null;
		
	}