Add bar chart option to drilldown demo

Generalize the drilldown chart composer by extracting a browserDrilldownChartWithType: helper and add convenience methods columnChart and barChart. Update the drilldown VC to return the bar chart for the second selection and add the "barChart---条形图" entry to the demo list in FirstViewController.

Author: AAChartModel

AAChartKit-ProDemo/ChartsDemo/AAPlugins/AADrilldown/AADrilldownChartComposer.h

@@ -15,6 +15,7 @@ NS_ASSUME_NONNULL_BEGIN
 @interface AADrilldownChartComposer : NSObject
 
 + (AAOptions *)columnChart;
++ (AAOptions *)barChart;
 
 @end
 

AAChartKit-ProDemo/ChartsDemo/AAPlugins/AADrilldown/AADrilldownChartComposer.m

@@ -332,10 +332,10 @@ @implementation AADrilldownChartComposer
  });
 
  */
-+ (AAOptions *)columnChart {
++ (AAOptions *)browserDrilldownChartWithType:(AAChartType)chartType {
     return AAOptions.new
     .chartSet(AAChart.new
-              .typeSet(AAChartTypeColumn))
+              .typeSet(chartType))
     .titleSet(AATitle.new
               .alignSet(AAChartAlignTypeLeft)
               .textSet(@"Browser market shares. January, 2022"))
@@ -462,4 +462,12 @@ + (AAOptions *)columnChart {
                   ;
 }
 
++ (AAOptions *)columnChart {
+    return [self browserDrilldownChartWithType:AAChartTypeColumn];
+}
+
++ (AAOptions *)barChart {
+    return [self browserDrilldownChartWithType:AAChartTypeBar];
+}
+
 @end

AAChartKit-ProDemo/ChartsDemo/AAPlugins/AADrilldown/AADrilldownChartVC.m

@@ -44,12 +44,8 @@ - (void)viewDidLoad {
 
 - (id)chartConfigurationWithSelectedIndex:(NSUInteger)selectedIndex {
     switch (self.selectedIndex) {
-
-
         case 0: return [AADrilldownChartComposer columnChart];
-       
-
-
+        case 1: return [AADrilldownChartComposer barChart];
     }
     return nil;
 }

AAChartKit-ProDemo/ChartsDemo/FirstViewController.m

@@ -299,6 +299,7 @@ - (void)listView:(AAListViewController *)listViewController didSelectRowAtIndexP
             ],
             @[
                 @"columnChart---柱形图",
+                @"barChart---条形图",
             ],
             @[
                 @"_3DColumnWithStackingRandomData---3D堆积随机柱形图",