Skip to main content

Android Gallery view with images saved in sqlite as blob



i need to show images from sqlite database into gridview or gallery view.








this is the code for displaying on a single view:







mMain = (ImageView) findViewById(R.id.ivMain);

byte[] blob = imgs.getBytes(); //there is a method that will return the bytes from the database

ByteArrayInputStream inputStream = new ByteArrayInputStream(blob);

Bitmap bitmap = BitmapFactory.decodeStream(inputStream);

mMain.setImageBitmap(bitmap);







i have the android tutorial for grid view but it gets the image from file







// references to our images

private Integer[] mThumbIds = {

R.drawable.sample_2, R.drawable.sample_3

... }







is there a way to populate the gridview from the sqlite database?


Comments

  1. private void getDataAndPopulate() {

    image = new ArrayList<byte[]>();
    caption = new ArrayList<String>();

    cursor=db.rawQuery("select * from NAME",null);


    while (cursor.moveToNext()) {

    byte[] temp_image = cursor.getBlob(2);
    String temp_caption = cursor.getString(1);
    String temp_id= cursor.getString(0);
    image.add(temp_image);
    caption.add(temp_caption);
    id.add(temp_id);
    }
    String[] captionArray = (String[]) caption.toArray(
    new String[caption.size()]);

    ItemsAdapter itemsAdapter = new ItemsAdapter(Item_show_grid.this, R.layout.item_grid,captionArray);
    gv.setAdapter(itemsAdapter);

    }

    ReplyDelete

Post a Comment

Popular posts from this blog

Slow Android emulator

I have a 2.67 GHz Celeron processor, 1.21 GB of RAM on a x86 Windows XP Professional machine. My understanding is that the Android emulator should start fairly quickly on such a machine, but for me it does not. I have followed all instructions in setting up the IDE, SDKs, JDKs and such and have had some success in staring the emulator quickly but is very particulary. How can I, if possible, fix this problem?