亮度调节

src/pages/wo/showPassCheck/index.vue

@@ -64,6 +64,7 @@ export default {
       qrCode: "",
       qrCodeImg: "",
       userInfo: {},
+      currentBrightness: 0,
     };
   },
   components: {},
@@ -76,7 +77,18 @@ export default {
     console.log("---onLoad");
   },
   onShow() {
+    let _this = this;
+    wx.getScreenBrightness({
+      success: (res)=>{
+        _this.currentBrightness = res.value
+      },
+      fail : (res)=>{
+        console.log(res,'-------getScreenBrightness--fail')
+      }
+    });
+    console.log(this.currentBrightness,'---currentBrightness');
     console.log("---onShow");
+    this.setScreenBrightness(1);
     this.getQrCode();
     this.TimeOut = null;
     this.TimeOut = setInterval(() => {
@@ -85,13 +97,25 @@ export default {
     this.init();
   },
   onHide() {
+    this.setScreenBrightness(this.currentBrightness);
     clearInterval(this.TimeOut);
   },
   onUnload() {
+    this.setScreenBrightness(this.currentBrightness);
     clearInterval(this.TimeOut);
   },
   mounted() {},
   methods: {
+    setScreenBrightness(val=0.7){
+      if (wx.setScreenBrightness) {
+        //设置屏幕亮度  参数值：0-1，越大越亮
+        wx.setScreenBrightness({
+          value: val
+        });
+      } else {
+        console.log("------微信版本过低------")
+      }
+    },
     init() {
       wx.showLoading({
         title: "加载中...",