1.获取移动设备的像素比
获取系统信息 ==> wx.getSystemInfo()
API说明:wx.getSystemInfo()
const getPixelRatio = () => {
let pixelRatio = 0
wx.getSystemInfo({
success: function (res) {
pixelRatio = res.pixelRatio
},
fail: function () {
pixelRatio = 0
}
})
return pixelRatio
}
2.初始化图表的时候设置像素比
devicePixelRatio
API说明:echarts.init
案例:
//获取像素比
const getPixelRatio = () => {
let pixelRatio = 0
wx.getSystemInfo({
success: function (res) {
pixelRatio = res.pixelRatio
},
fail: function () {
pixelRatio = 0
}
})