Get gridview with images
i am trying to get the images into a gridview from the sdcard, but i just want to get ONLY the CAMERA files. So this is my code:
public class GrillaActivity extends Activity
{
private Cursor imagecursor, actualimagecursor;
private int image_column_index, actual_image_column_index;
GridView imagegrid;
private int count;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.grid_view);
init_phone_image_grid();
}
private void init_phone_image_grid()
{
String[] img = { MediaStore.Images.Thumbnails._ID };
开发者_如何转开发 imagecursor = managedQuery(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, img, MediaStore.Images.Thumbnails.DATA + "='/sdcard/DCIM/Camera/*.*'", null, MediaStore.Images.Thumbnails.IMAGE_ID + "");
image_column_index = imagecursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID);
count = imagecursor.getCount();
imagegrid = (GridView)findViewById(R.id.PhoneImageGrid);
imagegrid.setAdapter(new ImageAdapter(getApplicationContext()));
imagegrid.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView parent, View v, int position, long id)
{
System.gc();
String[] proj = { MediaStore.Images.Media.DATA };
actualimagecursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, proj, MediaStore.Images.Media.DATA + "='/sdcard/DCIM/Camera/*.*'", null, null);
actual_image_column_index = actualimagecursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
actualimagecursor.moveToPosition(position);
String i = actualimagecursor.getString(actual_image_column_index);
System.gc();
Intent objI = getIntent();
objI.putExtra("clickedFile", i);
setResult(100, objI);
finish();
}
});
}
public class ImageAdapter extends BaseAdapter
{
private Context mContext;
public ImageAdapter(Context c)
{
mContext = c;
}
public int getCount()
{
return count;
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position,View convertView,ViewGroup parent)
{
System.gc();
ImageView i = new ImageView(mContext.getApplicationContext());
if (convertView == null)
{
imagecursor.moveToPosition(position);
int id = imagecursor.getInt(image_column_index);
i.setImageURI(Uri.withAppendedPath( MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, "" + id));
i.setScaleType(ImageView.ScaleType.CENTER_CROP);
i.setLayoutParams(new GridView.LayoutParams(92, 92));
}
else{
i = (ImageView) convertView;
}
return i;
}
}
}
I had added a SELECTION in the managedQuery function, but i'm getting an error. So please help me, maybe i'm doing something wrong. Thanks in advance.
精彩评论