解決微信小程序引用echarts視圖模糊的問題
在小程序項(xiàng)目中需要用到echarts圖表
但是展示的時候遇到了問題 圖表高度失真 體驗(yàn)感非常差
經(jīng)過一番查找實(shí)驗(yàn)，終于找到了解決方案
下面上代碼！
function initChart(canvas, width, height,dpr) {
const chart = echarts.init(canvas, null, {
width: width,
height: height,
devicePixelRatio: dpr //解決小程序視圖模糊的問題，必寫
});
canvas.setChart(chart);
var checkName = ‘今天’;
var dataLength = 14; //默認(rèn)的數(shù)據(jù)長度，既真實(shí)數(shù)組的長度，必須設(shè)置，長度來源：后臺傳輸
//這里是echart基礎(chǔ)配置
var option = {
backgroundColor: ‘rgba(25,1,169,.05)’,
tooltip: {
trigger: ‘axis’,
axisPointer: {
type: ‘shadow’,
backgroundColor: ‘rgba(245, 245, 245, 1)’,
borderWidth: 1,
// padding: 10,
}
},
dataZoom: [{
show: false, //是否顯示下方滾動條
realtime: true,
startValue: dataLength – 7,
endValue: dataLength – 1, //顯示數(shù)據(jù)結(jié)束位置
},
{
type: ‘inside’,
realtime: true,
startValue: dataLength – 7,
endValue: dataLength – 1, //顯示數(shù)據(jù)結(jié)束位置
}
],
grid: {
top: ‘20%’,
right: ‘0’,
left: ‘0’,
bottom: ‘12%’
},
xAxis: [{
type: ‘category’,
data: [‘02.25’, ‘02.26’, ‘02.27’, ‘02.28’, ‘03.01’, ‘03.02’, ‘03.02’, ‘02.25’, ‘02.26’, ‘02.27’, ‘02.28’, ‘03.01’, ‘03.02’, ‘今天’],
axisLine: {
lineStyle: {
color: ‘rgba(255,255,255,0.12)’
}
},
position: ‘top’,
axisLabel: {
color: function(params) {
//通過判斷選中的名字改變柱子的顏色樣式
if (checkName === params) {
return ‘rgba(38,74,255,1)’;
} else {
return ‘rgba(38,74,255,.3)’;
}
},
textStyle: {
fontSize: 14
},
padding: [10, 0]
},
}],
yAxis: [{
show: false,
axisLabel: {
formatter: ‘{value}’,
color: ‘#e2e9ff’,
},
axisLine: {
show: false
},
splitLine: {
lineStyle: {
color: ‘rgba(255,255,255,0.12)’
}
}
}],
series: [{
type: ‘bar’,
data: [300, 450, 770, 203, 255, 188, 156, 300, 450, 770, 203, 255, 188, 156],
// itemStyle: {
// normal: {
// color: ‘rgba(38,74,255,.3)’,
// }
// },
itemStyle: {
normal: {
label: {
show: true
},
color: function(params) {
//通過判斷選中的名字改變柱子的顏色樣式
if (checkName === params.name) {
return ‘rgba(38,74,255,1)’;
} else {
return ‘rgba(38,74,255,.3)’;
}
}
}
},
label: {
normal: {
show: true,
position: ‘top’,
textStyle: {
color: ‘#B9C5FC’,
fontSize: ’12’
},
formatter: ‘{c}分’
}
}
}]
};
chart.setOption(option);
return chart;
}
在小程序的data里面調(diào)用
這樣就解決了 解決后的效果圖
