yhongm_chart,简单的图表库，含有折线图,条形图，柱形图

	allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}

 	        dependencies {
        	        implementation 'com.github.yhongm:yhongm_chart:master'
        	}

    <com.yhongm.chart_core.BarChartView
  
    android:layout_centerInParent="true"
  
    custom:gradientStartColor="#ffa666"
  
    custom:gradientEndColor="#e57a2e"
   
    custom:lineColor="#333333"
   
    custom:chartColor="#666666"
   
    custom:textColor="#666666"
   
    custom:maxValue="2500"
   
    custom:unit="单位"
   
    custom:horizentalLineNum="2"
    custom:barWidth="16"  
    
android:id="@+id/bar_chart"
   
    android:layout_width="300dp"
   
    android:layout_height="200dp">  
    </com.yhongm.chart_core.BarChartView>

     <com.yhongm.chart_core.CurveChartView
  
     custom:curveOrBroken="false"
  
     custom:max="2500"
  
     custom:scaleColor="#666666"
   
     custom:curveLineColor="#ff5500"
   
     custom:smartCircleColor="#ff5500"
    
     custom:smartFillColor="#ffffff"
  
     android:layout_centerInParent="true"
  
     android:id="@+id/curve_chart"
     
     android:layout_width="300dp"
  
     android:layout_height="200dp">  
     
</com.yhongm.chart_core.CurveChartView>
 

    <com.yhongm.chart_core.PolyLineView
            android:id="@+id/polyline_view"
            android:layout_centerHorizontal="true"
            android:layout_alignParentBottom="true"
            android:layout_width="300dp"
            android:layout_height="200dp" />