echarts在ios原生app里调用出现问题

描述:当前是关于Echarts图表中的 折线图 示例。
 
            option = {
        noDataLoadingOption : {
            		text : '暂无数据,请到系统上维护',
            		effect : 'bar'
            	},
			    title: {
			        text: ''
			    },
			    tooltip: {
			    	show: false,
			        trigger: 'axis',			    
			        formatter: '{b}/{c}件'
			    },
			    grid: {
			        left: '-1%',
			        right: '7%',
			        top: '40%',
			        bottom: '3%',
			        containLabel: true
			    },
			    toolbox: {
			        show: false
			    },
			    xAxis: {
			        type: 'category',
			        boundaryGap: false,
			        data: ["12-01","12-02","12-03","12-04","12-05"],
			        axisLine: {
			        	show: true
			        },
			        axisTick: {
			        	show: true
			        }
			    },
			    yAxis: {
			    	type: 'value',
			    	show: true,
			    	min: 'dataMin',
			    	axisPointer: {
			            snap: true
			        }
//			    	max: 'dataMax',
//			    	interval: 500
			    },			    
			    series: [
			        {
			            name:'货量统计',
			            type:'line',
			            stack: '总量',			      
			            data: [32434,54656,65767,76676,45232],
			            itemStyle : { 
			            	normal: {
			            		label : {
			            			show: true,
			            			fontSize: 12
			            		},
			            		color: '#666',
			            		borderColor: '#ff774b',
			            		borderWidth: 4,
			            		borderType: 'solid'
			            	}
			       		},
			       		lineStyle: {
			       			normal: {
			       				color:'#ff774b'
			       			}
			       		}
			        }
			    ]
			};