Android4.4 从图库选图返回

private View.OnClickListener mChoosePhotoAlbumListener = new OnClickListener() {
		@Override
		public void onClick(View v) {
			Intent intent = new Intent();
			//根据版本号不同使用不同的Action
			if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
				intent.setAction(Intent.ACTION_GET_CONTENT);
			}
			else {
				intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
				intent.addCategory(Intent.CATEGORY_OPENABLE);
			} 
			intent.setType("image/*");
			intent.putExtra("crop", "true");
			intent.putExtra("scale", "true");
			intent.putExtra("scaleUpIfNeeded", true);	//部分机型没有设置该参数截图会有黑边
			intent.putExtra("aspectX", 10);
			intent.putExtra("aspectY", mAspectY);
			// outputX outputY 是裁剪图片宽高
			intent.putExtra("outputX", mWidth);
			intent.putExtra("outputY", mHeight);
			// 输出路径
			intent.putExtra("output", Uri.fromFile(new File(mThemePath)));
			startActivityForResult(intent, REQUEST_CODE_SELECT_FROM_ALBUM);
		}
	};

//关于裁剪框你需要知道的; 

http://commonsware.com/blog/2013/01/23/no-android-does-not-have-crop-intent.html 

 

处理方法1:

@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (resultCode == RESULT_OK) {
			switch (requestCode) {
				case REQUEST_CODE_SELECT_FROM_ALBUM:
					if(data != null) {
						Uri imageUri;
						if(data.getData() != null){
							imageUri = data.getData();
						} else {
							imageUri = Uri.parse(mThemePath);
						}
						
						//TODO 自定义时id 为-1,
						final String thumbPath = DirectoryBuilder.DIR_THEME + mUserId + "_thumb" + ".png";
						SessionTheme sessionTheme = new SessionTheme();
						sessionTheme.theme_id = -1;
						sessionTheme.userId = mUserId;
						sessionTheme.name = "user_defined";
						sessionTheme.token = mUserId + "_defined_" + System.currentTimeMillis();
						sessionTheme.isInnerResource = false;
						sessionTheme.iconPath = thumbPath;
						if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
							sessionTheme.themePath = imageUri.getPath();
						}
						else {
							String wholeID = DocumentsContract.getDocumentId(imageUri);
							if(!TextUtils.isEmpty(wholeID) && wholeID.contains(":")) {
								// 获得资源唯一ID
								String id = wholeID.split(":")[1];
								// 定义索引字段
								String[] column = { MediaStore.Images.Media.DATA };
								String sel = MediaStore.Images.Media._ID + "=?";
								
								Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel, new String[] { id }, null);
								int columnIndex = cursor.getColumnIndex(column[0]);
								
								if (cursor.moveToFirst()) {
									// DATA字段就是本地资源的全路径
									String filePath = cursor.getString(columnIndex);
									sessionTheme.themePath = filePath;
								}
								// 切记要关闭游标
								cursor.close();
							}
						}
						sessionTheme.status = SessionTheme.THEME_STATE_USER_DEFINED;
						mReturnTheme = sessionTheme;
						
						//异步更新 预览ICON
						saveIconTask(imageUri, thumbPath);
					}
					break;

				default:
					break;
			}
		}
	}

 

处理方法2:

/**
 * Get a file path from a Uri. This will get the the path for Storage Access
 * Framework Documents, as well as the _data field for the MediaStore and
 * other file-based ContentProviders.
 *
 * @param context The context.
 * @param uri The Uri to query.
 * @author paulburke
 */
public static String getPath(final Context context, final Uri uri) {

    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

    // DocumentProvider
    if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
        // ExternalStorageProvider
        if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            if ("primary".equalsIgnoreCase(type)) {
                return Environment.getExternalStorageDirectory() + "/" + split[1];
            }

            // TODO handle non-primary volumes
        }
        // DownloadsProvider
        else if (isDownloadsDocument(uri)) {

            final String id = DocumentsContract.getDocumentId(uri);
            final Uri contentUri = ContentUris.withAppendedId(
                    Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

            return getDataColumn(context, contentUri, null, null);
        }
        // MediaProvider
        else if (isMediaDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            Uri contentUri = null;
            if ("image".equals(type)) {
                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(type)) {
                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(type)) {
                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }

            final String selection = "_id=?";
            final String[] selectionArgs = new String[] {
                    split[1]
            };

            return getDataColumn(context, contentUri, selection, selectionArgs);
        }
    }
    // MediaStore (and general)
    else if ("content".equalsIgnoreCase(uri.getScheme())) {
        return getDataColumn(context, uri, null, null);
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
}

/**
 * Get the value of the data column for this Uri. This is useful for
 * MediaStore Uris, and other file-based ContentProviders.
 *
 * @param context The context.
 * @param uri The Uri to query.
 * @param selection (Optional) Filter used in the query.
 * @param selectionArgs (Optional) Selection arguments used in the query.
 * @return The value of the _data column, which is typically a file path.
 */
public static String getDataColumn(Context context, Uri uri, String selection,
        String[] selectionArgs) {

    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = {
            column
    };

    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                null);
        if (cursor != null && cursor.moveToFirst()) {
            final int column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}


/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is ExternalStorageProvider.
 */
public static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is DownloadsProvider.
 */
public static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is MediaProvider.
 */
public static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri.getAuthority());
}