采用contentprivider扫描手机SD卡的图片资源

Intent inten = new Intent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);startActivityForResult(inten,21);------------------------在onActivityResult中加入-------------------Uri uri = data.getData();String[] filePath = { MediaStore.Images.Media.DATA };Cursor c = getContentResolver().query(uri, filePath,null, null, null);c.moveToFirst();int columnIndex = c.getColumnIndex(filePath[0]);Log.e("autobot", columnIndex+"");String picturePath = c.getString(columnIndex);Log.e("autobot", picturePath);c.close();Bitmap  bitmap = ImageManager.decodeScaledBitmap(picturePath, 400, 200);image.setImageBitmap(bitmap);