BoardView
BoardView is a custom view that allows you to be able to re-order items in a list as well as in a board. You can drag and drop items between columns as well as drag and drop columns.
Example
Download library with Jitpack.io
Add this to your build.gradle file for your app.
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}Add this to your dependencies in build.gradle for your project.
dependencies {
compile 'com.github.jakebonk:BoardView:1.2.1'
}Usage
BoardView utilizes a BoardAdapter, SimpleBoardAdapter is an example of how to extend BoardAdapter.
BoardView boardView = (BoardView)findViewById(R.id.boardview);
ArrayList<SimpleBoardAdapter.SimpleColumn> data = new ArrayList<>();
ArrayList<String> list = new ArrayList<String>();
list.add("Item 1");
list.add("Item 2");
list.add("Item 3");
list.add("Item 4");
data.add(new SimpleBoardAdapter.SimpleColumn("Column 1",list));
data.add(new SimpleBoardAdapter.SimpleColumn("Column 2",list));
data.add(new SimpleBoardAdapter.SimpleColumn("Column 3",list));
data.add(new SimpleBoardAdapter.SimpleColumn("Column 4",list));
data.add(new SimpleBoardAdapter.SimpleColumn("Column 5",list));
SimpleBoardAdapter boardAdapter = new SimpleBoardAdapter(this,data);
boardView.setAdapter(boardAdapter);There are two types of drag listeners, the first is for columns
boardView.setOnDragColumnListener(new BoardView.DragColumnStartCallback() {
@Override
public void startDrag(View view, int startColumnPos) {
}
@Override
public void changedPosition(View view, int startColumnPos, int newColumnPos) {
}
@Override
public void dragging(View itemView, MotionEvent event) {
}
@Override
public void endDrag(View view, int startColumnPos, int endColumnPos) {
}
});Similarly we can get the drag listener for items
boardView.setOnDragItemListener(new BoardView.DragItemStartCallback() {
@Override
public void startDrag(View view, int startItemPos, int startColumnPos) {
}
@Override
public void changedPosition(View view, int startItemPos, int startColumnPos, int newItemPos, int newColumnPos) {
}
@Override
public void dragging(View itemView, MotionEvent event) {
}
@Override
public void endDrag(View view, int startItemPos, int startColumnPos, int endItemPos, int endColumnPos) {
}
});There is also a listener for when the BoardView has finished creating and assigning its views.
boardView.setOnDoneListener(new BoardView.DoneListener() {
@Override
public void onDone() {
Log.e("ee","Done");
}
});
This is how to set the click listener for a item, header and footer, which gives their respective positions.
boardView.setOnItemClickListener(new BoardView.ItemClickListener() {
@Override
public void onClick(View v, int column_pos, int item_pos) {
}
});
boardView.setOnHeaderClickListener(new BoardView.HeaderClickListener() {
@Override
public void onClick(View v, int column_pos) {
}
});
boardView.setOnFooterClickListener(new BoardView.FooterClickListener() {
@Override
public void onClick(View v, int column_pos) {
}
});
Creating your own BoardAdapter
Creating a custom BoardAdapter is pretty similar to that of a BaseAdapter, the main focus being to create some type of object that help you create your custom views for both headers and items. The adapter also has two new abstract methods called, isColumnLocked when true prevents the column from being draggable. isItemLocked will not allow item to be dragged to or from this column.
@Override
public boolean isColumnLocked(int column_position) {
return false;
}
@Override
public boolean isItemLocked(int column_position) {
return false;
}Things to fix
There is a scaling issue when the column is beginning dragging or has ended dragging. I know this is an issue but I don't know of a good way to solve this at the moment. I eventually will fix it but for now I'm putting it on the back burners.
