I was looking for an android widget similar to the launcher workspace widget ( the one used in almost all launchers ), but a bit more customizable and with the possibility to use an Adapter as content provider. So at the end I mixed portion of code from the android launcher Workspace widget, the Gallery widget and the AbsListView widget.
Nothing particular tricky, just a combination of the 3 widgets in order to have the same sliding effect of the workspace ( using custom number of columns and rows ), but at the same time with an ArrayAdapter for creating views, and a little glow effect at start at the end of scrolling for creating the gingerbread style overscroll effect.
This is the source code: workspace
It’s just a first version, so it’s not really optimized…
The adapter used for creating this example looks like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | class WorkspaceAdapter extends ArrayAdapter<applicationinfo> { int screenId; PackageManager pm; private LayoutInflater mInflater; private int nCellsPerScreen = 4; public WorkspaceAdapter( Context context, int textViewResourceId, List</applicationinfo><applicationinfo> objects ) { super( context, textViewResourceId, objects ); screenId = textViewResourceId; pm = context.getPackageManager(); nCellsPerScreen = context.getResources().getInteger( R.integer.config_portraitCells ) * context.getResources().getInteger( R.integer.config_portraitRows ); mInflater = (LayoutInflater) context.getSystemService( LAYOUT_INFLATER_SERVICE ); } @Override public int getCount() { return (int) Math.ceil( (double) super.getCount() / nCellsPerScreen ); } public int getRealCount() { return super.getCount(); } @Override public View getView( int position, View convertView, ViewGroup parent ) { if ( convertView == null ) { convertView = mInflater.inflate( screenId, mWorkspace, false ); ((CellLayout)convertView).setNumCols( nCellsPerScreen ); } CellLayout cell = (CellLayout) convertView; int index = position * nCellsPerScreen; int realCount = getRealCount(); for ( int i = 0; i < nCellsPerScreen; i++ ) { CellInfo cellInfo = cell.findVacantCell( 1, 1 ); TextView text; if ( cellInfo == null ) { text = (TextView) cell.getChildAt( i ); } else { text = (TextView) mInflater.inflate( R.layout.application_boxed, cell, false ); CellLayout.LayoutParams lp = new CellLayout.LayoutParams( cellInfo.cellX, cellInfo.cellY, cellInfo.spanH, cellInfo.spanV ); cell.addView( text, i, lp ); } if ( index + i < realCount ) { ApplicationInfo appInfo = getItem( index + i ); CharSequence label = appInfo.loadLabel( pm ); Drawable bm = appInfo.loadIcon( pm ); text.setCompoundDrawablesWithIntrinsicBounds( null, bm, null, null ); // new text.setText( label ); text.setClickable( true ); text.setFocusable( true ); text.setVisibility( View.VISIBLE ); } else { text.setVisibility( View.INVISIBLE ); } } return convertView; } } |
