Somebody please help me,,why decodeByteArray(...) returns null????
Thanxs
komal
On Mar 20, 11:45 am, Komal <komal...@gmail.com> wrote:
> Hello,
> I want to store image in sqlite database.
> I tried to store it using BLOB and String, in both cases it store the
> image and can retrieve it but when i convert it to Bitmap using
> BitmapFactory.decodeByteArray(...) it return null.
> Below is my code please have a look and suggest me where i m making
> mistake.
>
> public class imagesql extends Activity {
> /** Called when the activity is first created. */
>
> Bitmap bi=null;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
>
> InputStream in=this.getResources().openRawResource
> (R.drawable.dig);
> bi = BitmapFactory.decodeStream(in);
> Log.i("bitmap1",""+bi);
> ImageView iv1=(ImageView)findViewById(R.id.img1);
> iv1.setImageBitmap(bi);
>
> String str= convertBitmapToString(bi);
> Log.i("image string",str);
> myDB a=new myDB(this);
> a.open();
> a.insertTag(str);
>
> Cursor c=a.fetchData(myDB.TABLE_NAME_TAG,new String[]
> {myDB.KEY_TAG_IMG},null,null);
> startManagingCursor(c);
> int rc=c.getCount();
>
> ImageView iv;
> c.moveToFirst();
>
> if(rc!=0)
> {
> String s=c.getString(0);
> Log.i("cursor string image",s);
> Bitmap bitmap=getBitMapFromString(s);
> Log.i("bitmap2",""+bitmap);
> iv=(ImageView)findViewById(R.id.img);
> iv.setImageBitmap(bitmap);
> }
> }
>
> public static String convertBitmapToString(Bitmap src)
> {
> ByteArrayOutputStream os=new ByteArrayOutputStream();
> src.compress(android.graphics.Bitmap.CompressFormat.PNG, 100,
> (OutputStream) os);
> return os.toString();
> }
>
> public static Bitmap getBitMapFromString(String src)
> {
> Log.i("b=",""+src.getBytes().length);//returns 12111 as a length.
> return BitmapFactory.decodeByteArray(src.getBytes(),0,src.getBytes
> ().length);
> }
>
> }
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