DragBoardView

Introduction: :star: Android 看板,支持项拖拽、列拖拽。Draggable kanban/board view for Android.
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DragBoardView is a draggable kanban/board view for Android. it supports drag item, drag column, auto center

You can just use it like a RecyclerView!

Just use it like a RecyclerView! 中文文档

How to use Recyclerview:

1. Add dependency for recyclerview compile 'com.android.support:recyclerview-v7:23.1.0' Add recyclerview in main layout file xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" > <android.support.v7.widget.RecyclerView android:id="@+id/item_list" android:layout_width="match_parent" android:layout_height="match_parent" android:scrollbars="vertical" /> </LinearLayout>
2. Make one item layout xml file xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/txtChords" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="center_horizontal" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/txtLyrics"/> </LinearLayout>
3. Make model class for each item in list. it can be any custom class. java public class Item { private String name; public Item(String n) { name = n; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
4. make adapter for recyclerview java import android.support.v7.widget.RecyclerView; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import com.codexpedia.list.viewholder.R; import java.util.ArrayList; public class ItemArrayAdapter extends RecyclerView.Adapter<ItemArrayAdapter.ViewHolder> { //All methods in this adapter are required for a bare minimum recyclerview adapter private int listItemLayout; private ArrayList<Item> itemList; // Constructor of the class public ItemArrayAdapter(int layoutId, ArrayList<Item> itemList) { listItemLayout = layoutId; this.itemList = itemList; } // get the size of the list @Override public int getItemCount() { return itemList == null ? 0 : itemList.size(); } // specify the row layout file and click for each row @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent.getContext()).inflate(listItemLayout, parent, false); ViewHolder myViewHolder = new ViewHolder(view); return myViewHolder; } // load data in each row element @Override public void onBindViewHolder(final ViewHolder holder, final int listPosition) { TextView item = holder.item; item.setText(itemList.get(listPosition).getName()); } // Static inner class to initialize the views of rows static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { public TextView item; public ViewHolder(View itemView) { super(itemView); itemView.setOnClickListener(this); item = (TextView) itemView.findViewById(R.id.txtChords); } @Override public void onClick(View view) { Log.d("onclick", "onClick " + getLayoutPosition() + " " + item.getText()); } }
5. bind adapter with recyclerview java import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.DefaultItemAnimator; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import com.codexpedia.list.viewholder.R; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { RecyclerView recyclerView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Initializing list view with the custom adapter ArrayList <Item> itemList = new ArrayList<Item>(); ItemArrayAdapter itemArrayAdapter = new ItemArrayAdapter(R.layout.list_item, itemList); recyclerView = (RecyclerView) findViewById(R.id.item_list); recyclerView.setLayoutManager(new LinearLayoutManager(this)); recyclerView.setItemAnimator(new DefaultItemAnimator()); recyclerView.setAdapter(itemArrayAdapter); // Populating list items for(int i=0; i<100; i++) { itemList.add(new Item("Item " + i)); } } }

As for DragBoardView, it's all the same.

How to use DragBoardView:

1. Add dependency for DragBoardView Add it in your root build.gradle at the end of repositories: gradle allprojects { repositories { ... maven { url 'https://jitpack.io' } } } Add the dependency gradle dependencies { compile 'com.github.LinXueyuanStdio:DragBoardView:v1.0.0' } declare it in your main layout xml file: xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary"/> <com.time.cat.dragboardview.DragBoardView android:id="@+id/layout_main" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@id/toolbar"/> </RelativeLayout>
2. Make two item layout xml files. One for each column item. it should contains a RecyclerView xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/col_content_container" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v7.widget.RecyclerView android:id="@+id/rv" android:layout_width="match_parent" android:layout_height="match_parent"/> </RelativeLayout> One for the item in each column. xml <TextView android:id="@+id/item_title" android:layout_width="match_parent" android:layout_height="match_parent" android:text="item"/>
3. Make model class for each column and each item in list. for each column, it should implement DragColumn interface. java public class Entry implements DragColumn { private final String name; private int columnIndex; private final List<DragItem> itemList; public Entry(String name, int columnIndex, List<DragItem> items) { this.name = name; this.columnIndex = columnIndex; this.itemList = items; } public String getName() { return name; } public List<DragItem> getItemList() { return itemList; } @Override public int getColumnIndex() { return columnIndex; } @Override public void setColumnIndex(int columnIndexInHorizontalRecycleView) { //save to database here } } for each item in the column, it should implement DragItem interface. java public class Item implements DragItem { private final String itemName; private int colIndex; private int itemIndex; public Item(String itemName, int colIndex, int itemIndex) { this.itemName = itemName; this.colIndex = colIndex; this.itemIndex = itemIndex; } public String getItemName() { return itemName; } @Override public int getColumnIndex() { return colIndex; } @Override public int getItemIndex() { return itemIndex; } @Override public void setColumnIndex(int columnIndexInHorizontalRecycleView) { //save to database here } @Override public void setItemIndex(int itemIndexInVerticalRecycleView) { //save to database here } }
4. make adapter for DragBoardView java public class ColumnAdapter extends HorizontalAdapter<ColumnAdapter.ViewHolder> public class ItemAdapter extends VerticalAdapter<ItemAdapter.ViewHolder>
5. bind adapter with DragBoardView java public class MainActivity extends AppCompatActivity { DragBoardView dragBoardView; List<DragColumn> mData = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); dragBoardView = findViewById(R.id.layout_main); mAdapter = new ColumnAdapter(this); mAdapter.setData(mData); dragBoardView.setHorizontalAdapter(mAdapter); } }

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Advance

Meanwhile, PagerRecyclerView is able to be customized by these 3 params:

name format description
singlePageFling boolean single Page Fling, default false
triggerOffset float trigger offset, default 0.25f
flingFactor float fling factor, default 0.15f

demo is more clear

demo apk

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