Android调用系统自带的文件管理器进行文件选择

http://blog.csdn.net/zqchn/article/details/8770913的补充

FileUtils文件

public class FileUtils {     public static String getPath(Context context, Uri uri) {           if ("content".equalsIgnoreCase(uri.getScheme())) {             String[] projection = { "_data" };             Cursor cursor = null;               try {                 cursor = context.getContentResolver().query(uri, projection,null, null, null);                 int column_index = cursor.getColumnIndexOrThrow("_data");                 if (cursor.moveToFirst()) {                     return cursor.getString(column_index);                 }             } catch (Exception e) {                 // Eat it             }         }           else if ("file".equalsIgnoreCase(uri.getScheme())) {             return uri.getPath();         }           return null;     } }