Databases
StackOverflow2013
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POgetBitmap from SQLite to ListView
 

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    <p>I'm trying to show profile <code>Contact</code> image from <code>SQLite</code> on android app but it doesn't work and it crashes on <code>image.setImageBitmap(bitmap)</code> that appears <code>.NullPointerException</code> and I don't Know why.</p> <p>If someone can help me please. this is my code:</p> <pre><code>public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); DatabaseHandler helper = new DatabaseHandler(this); database = helper.getWritableDatabase(); Cursor data = database.query("amigos", fields, null, null, null, null, null); data.moveToFirst(); dataSource = new SimpleCursorAdapter(this, R.layout.row_def, data, fields, new int[] {R.id.Nombre_Amigo, R.id.profile_picture}); Log.d("ListarContactos","Oncreate....data: "+data.toString()); while (!data.isAfterLast()){ byte[] bb = data.getBlob(data.getColumnIndex(DatabaseHandler.KEY_PIC_SQ)); Log.d("ListarContactos","Oncreate....bb: "+bb.toString()); ByteArrayInputStream inputStream = new ByteArrayInputStream(bb); Log.d("ListarContactos","Oncreate....inputStream: "+inputStream.toString()); Bitmap bitmap = BitmapFactory.decodeByteArray(bb, 0, bb.length); Log.d("ListarContactos","Oncreate....Bitmap: "+bitmap.toString()); ImageView image = (ImageView) findViewById(R.id.profile_picture); image.setImageBitmap(bitmap); Log.d("ListarContactos","Oncreate....image: "+image.toString()); } Log.d("ListarContactos","Oncreate....datasource: "+dataSource.toString()); setListAdapter(dataSource); Log.d("ListarContactos","Oncreate....despres del ListAdapter"); helper.close(); ListView view = getListView(); } </code></pre>
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    1. USAkshay
    1. USuser1459089
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    1. COYou are testing the app in emulator or device?
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      1. USRajesh Rajaram
    2. COyou must call setContentView(R.layout.yourlayout) before try to use findViewById() method , in your case your (image ) is null ,,,ie should pass the layout in setContentView where the imageView id used R.id.profile_picture
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      1. USVipin Sahu
    3. COon emulator, this is important? after I wanna test on device.
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      1. USuser1459089
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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