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felipecsl / AsymmetricGridView

Android ListView that mimics a GridView with asymmetric items. Supports items with row span and column span
http://felipecsl.com/AsymmetricGridView
MIT License
1.84k stars 431 forks source link

Dynamic resizing of elements in a grid #78

Open TheNetos opened 6 years ago

TheNetos commented 6 years ago

Hi everyone I try to change the individual elements in the grid colSpan and rowSpan. If the element being changed has the same height as the others - all is more or less normal:

screenshot_1530090292 screenshot_1530090287

Otherwise, the item simply disappears:

screenshot_1530090298

But if I add a new element to the grid, the missing item appears:

screenshot_1530090313

After change colSpan and rowSpan values, i call method notifyDataSetChanged() in the adapter.

Question - this is normal behavior and I do something wrong?

UPD: My code (Kotlin): (GridDevicesView - My custom heir to the AsymmetricItem interface, items: List = ArrayList()) asymGrid = mainView.findViewById(R.id.testAsymGrid) asymGrid.requestedHorizontalSpacing = AsymGridUtils.dpToPx(context, 2f) asymGrid.setRequestedColumnCount(3) asymGrid.isDebugging = true asymGrid.isAllowReordering = true asymGridAdapter = GridDevicesAdapter(context, items, asymGrid) // My custom heir of ArrayAdapter asymGridAdapter.add(GridDevicesView(GridTileSize(1/*rowSpan*/,1/*colSpan*/))) asymGridAdapter.add(GridDevicesView(GridTileSize(2,1))) asymGridAdapter.add(GridDevicesView(GridTileSize(2,1)))

TheNetos commented 6 years ago

UPD After debugging the AsymmetricGridViewAdapter.getView(), I found that if the rowItems variable contains two or more elements of different heights, all elements that are smaller in height than the first one are simply discarded.