TContributionsView can be use for a Contributions View, like in one personal homepage of Github, and more than that.
👻At the beginning, I just want to use it for showing the contributions view like Github, and that's why it named
TContributionsView. But later, I found it seems to be able to do more things than I want …… For example: Github contributions, Pixel painting、Select seats in the cinema、checkerboard……
Click Here to download Demo, or scan this:

Import：
compile 'com.barryzhang:tcontributionsview:0.2'If you want to show this :

Just writing these codes：
IntArraysContributionsViewAdapter adapter = new IntArraysContributionsViewAdapter();
Integer arrays[][] = {
{0, 0, 0, 1, 0, 0, 0, 0},
{0, 0, 1, 3, 1, 0, 0},
{0, 1, 2, 4, 2, 1, 0},
{0, 0, 1, 3, 1, 0, 0},
{0, 0, 0, 1, 0, 0, 0},
};
adapter.setArrays(arrays);
contributionsView.setAdapter(adapter);😀Isn't very easy?

Every rectangle item is mapping to a int value as its level. Now can use level 0 to 4 (like Github)，and a extra -1 to express empty status.
Just set different level to different item , you can control them.
Set item color、size、if show circle in xml:
<com.barryzhang.tcontributionsview.TContributionsView
android:id="@+id/contributionsView1s"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:contributions_use_circle="true"
app:contributions_color_0="#E1DFCE"
app:contributions_color_1="#FFED3B"
app:contributions_color_2="#F4C42E"
app:contributions_color_3="#FB8308"
app:contributions_color_4="#040015"
app:contributions_item_height="10dp"
app:contributions_item_space="1dp"
app:contributions_item_width="10dp"/>Use setAdapter method to bind data to View.
Base usage:
BaseContributionsViewAdapter adapter;
// config adapter
contributionsView.setAdapter(adapter);Several different Adapter were already built in project, and you can also build your custom Adapter very easily by yourself.
Build-in Adapters:
PositionContributionsViewAdapter：Based on (x,y) coordinate.AbstractArraysContributionsViewAdapter：Based on a two-dimensional array, this is intuitive and very very easy to use.IntArraysContributionsViewAdapter：This is extends AbstractArraysContributionsViewAdapter，use Int two-dimensional array.DateContributionsAdapter：Based on date, with this Adapter, you can easily to get a Contributions View like Github.TestContributionAdapter：A random level Adapter —— I use it as a demo :-D
Mentioned earlier the "Quick Start" was a demo for ArraysContributionsViewAdapter, and in fact, it also can be used to do something much more interesting, like this:
IntArraysContributionsViewAdapter adapter = new IntArraysContributionsViewAdapter();
Integer arrays[][] = {
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 4, 0,},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 3, 4, 0,},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 3, 2, 4, 0,},
{0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 3, 2, 4, 0, 0,},
{0, 0, 4, 4, 0, 0, 0, 4, 2, 3, 2, 4, 0, 0, 0,},
{0, 0, 4, 3, 4, 0, 4, 2, 3, 2, 4, 0, 0, 0, 0,},
{0, 0, 0, 4, 3, 4, 2, 3, 2, 4, 0, 0, 0, 0, 0,},
{0, 0, 0, 4, 3, 4, 3, 2, 4, 0, 0, 0, 0, 0, 0,},
{0, 0, 0, 0, 4, 3, 4, 4, 0, 0, 0, 0, 0, 0, 0,},
{0, 0, 0, 1, 1, 4, 3, 3, 4, 0, 0, 0, 0, 0, 0,},
{0, 0, 1, 1, 1, 0, 4, 4, 3, 4, 0, 0, 0, 0, 0,},
{4, 4, 1, 1, 0, 0, 0, 0, 4, 4, 0, 0, 0, 0, 0,},
{4, 1, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
{4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
};
adapter.setArrays(arrays);
contributionsView.setAdapter(adapter);

Achievement get!
『Time to Strike!』 😁
And with AbstractArraysContributionsViewAdapter, you can use other data type T to express Level, just need to overwrite its int mapLevel(T from) method.
Based on (x,y) position, use it with giving to every item a level, default is level 0. Here is a demo：
PositionContributionsViewAdapter adapter =
new PositionContributionsViewAdapter(8, 17);
adapter.put(0, 4, 4);
adapter.put(1, 4, 4);
adapter.put(1, 5, 4);
adapter.put(2, 5, 4);
adapter.put(0, 10, 4);
adapter.put(1, 10, 4);
adapter.put(1, 9, 4);
adapter.put(2, 9, 4);
adapter.put(4, 7, 4);
adapter.put(4, 3, 1);
adapter.put(5, 4, 2);
adapter.put(6, 5, 3);
adapter.put(6, 6, 4);
adapter.put(6, 7, 4);
adapter.put(6, 8, 4);
adapter.put(6, 9, 3);
adapter.put(5, 10, 2);
adapter.put(4, 11, 1);
contributionsView.setAdapter(adapter);

Use DateContributionsAdapter, you can easily to get a Contributions View like Github.
Its row value is already be set to 7 (days of a week).
DateContributionsAdapter adapter = new DateContributionsAdapter() ;
adapter.setWeekCount(10);
adapter.setEndDay("2016-11-20");
adapter.put("2016-10-17", 1);
adapter.put("2016-10-18", 2);
adapter.put("2016-10-19", 3);
adapter.put("2016-10-20", 4);
adapter.put("2016-10-21", 3);
adapter.put("2016-10-22", 3);
adapter.put("2016-10-27", 1);
adapter.put("2016-10-28", 1);
adapter.put("2016-10-20", 1);
adapter.put("2016-11-19", 2);
adapter.put("2016-11-18", 4);
contributionsView.setAdapter(adapter);

You can custom an Adapter very easily by yourself, just need to extends BaseContributionsViewAdapter, and overwrite some methods.
// get row
public abstract int getRowCount();
// get column
public abstract int getColumnCount();
// get level（-1~4）
public abstract int getLevel(int row, int column);The build-in TestContributionAdapter is a simple demo：
public class TestContributionAdapter extends BaseContributionsViewAdapter {
private int row;
private int column;
public TestContributionAdapter() { this(7,20); }
public TestContributionAdapter(int row, int column) {
super();
this.row = row;
this.column = column;
}
@Override
public int getRowCount() { return this.row; }
@Override
public int getColumnCount() { return this.column; }
@Override
public int getLevel(int row, int column) {
return (int) (Math.random() * 100) % 10;
}
}[Since version 0.2]
You can get Canvas of view item, and so that you are able to custom any style as you want。
Demo：

TestContributionAdapter adapter = new TestContributionAdapter(5, 5);
adapter.setOnDrawItemListener(new TContributionsView.OnDrawItemListener() {
// called before the default drawItem method
@Override
public boolean beforeDrawItem(RectF rect, Canvas canvas, Paint paintByLevel, int level) {
// True will not called default drawItem method, false otherwise.
return true;
}
//called after the default drawItem method
@Override
public void afterDrawItem(RectF rect, Canvas canvas, Paint paintByLevel, int level) {
// Draw a Regular polygon inside the giving Rect area
CanvasUtil.drawPolygon(rect,canvas,paintByLevel,level+3);
}
});
contributionsView.setAdapter(adapter);Add custom item style: adapter.setOnDrawItemListener
Basic
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Copyright 2016 Barry Zhang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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