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仿天眼查关系图的生成,自定义view,随机颜色,随机大小

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Co-People

仿天眼查关系图,自定义view,随机颜色,随机大小,随机长度,欢迎star

预览图

设计图 avatar

绘制思路

这里使用了中学解析几何知识 XPoint = OPointX = OPointXcosθ; YPoint = OPointY = OPointYsinθ;

                canvas.drawText(lists.get(i).getName(), XPoint + (float) Math.cos(pere * i + 5) * radius[i % radius.length] - 30, YPoint + (float) Math.sin(pere * i + 5) * radius[i % radius.length] + 35, paint);

用法

1、XML布局(PS要根据自己的包名) <com.gkzy.relation.CirclePeopleView
   android:id="@+id/layout_cricle_people"
   android:layout_width="match_parent"
   android:layout_height="280dp"
   app:layout_constraintBottom_toBottomOf="parent"
   app:layout_constraintLeft_toLeftOf="parent"
   app:layout_constraintRight_toRightOf="parent"
   app:layout_constraintTop_toTopOf="parent" />
  
       
2.  peopleView = findViewById(R.id.layout_cricle_people);

3. 添加数据,刷新UI peopleView.SetFieldInfo(lists);
   peopleView.invalidate();
   
   
4.添加了view的点击事件,通过手势判断。原理:
每个圆的Cx,Cy,r都能获取到,然后通过已知数据计算RectF的
 left,  top,  right,  bottom
  /**
    * Create a new rectangle with the specified coordinates. Note: no range
    * checking is performed, so the caller must ensure that left <= right and
    * top <= bottom.
    *
    * @param left   The X coordinate of the left side of the rectangle
    * @param top    The Y coordinate of the top of the rectangle
    * @param right  The X coordinate of the right side of the rectangle
    * @param bottom The Y coordinate of the bottom of the rectangle
    */
   public RectF(float left, float top, float right, float bottom) {
       this.left = left;
       this.top = top;
       this.right = right;
       this.bottom = bottom;
   }
   
   得到RectF后判断contains(x,y)来获得点击的位置
 

后续功能

添加手势控制(手势控制放大缩小)

目前还存在的问题

1、文字中心对齐圆心Ps这个已经解决 2、数据量大的情况下会有重叠现象

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仿天眼查关系图的生成,自定义view,随机颜色,随机大小

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