初始化（包含登录模块）

platforms/app-plus/orientation/orientation.vue

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+<template>
+	<view>
+		<page-head :title="title"></page-head>
+		<view class="uni-padding-wrap uni-common-mt">
+			<view class="uni-btn-v">
+				<button type="primary" @tap="getOrient">获取设备的方向信息</button>
+				<button type="primary" @tap="watchOrient">监听设备的方向变化</button>
+				<button type="primary" @tap="watchStop">停止监听</button>
+			</view>
+			<view class="uni-textarea">
+				<textarea :value="value" />
+			</view>
+		</view>
+	</view>
+</template>
+<script>
+	var id = null
+	export default {
+		data() {
+			return {
+				title: 'orientation',
+				value: ''
+			}
+		},
+		onUnload() {
+			this.watchStop();
+		},
+		methods: {
+			getOrient: function () {
+				var that = this;
+				plus.orientation.getCurrentOrientation(function (o) {
+					that.value = "alpha：" + o.alpha + "\nbeta：" + o.beta + "\ngamma：" + o.gamma;
+				}, function (e) {
+					console.log("获取失败:" + e.message);
+				});
+			},
+			watchOrient: function () {
+				var that = this;
+				if (id) {
+					return;
+				}
+				id = plus.orientation.watchOrientation(function (o) {
+					that.value = "监听设备方向变化信息\n" + "alpha：" + o.alpha + "\nbeta：" + o.beta + "\ngamma：" + o.gamma;
+				}, function (e) {
+					plus.orientation.clearWatch(id);
+					id = null;
+					console.log("监听失败:" + e.message);
+				});
+			},
+			watchStop: function () {
+				if (id) {
+					plus.orientation.clearWatch(id);
+					id = null;
+				} else {
+					console.log("没有监听设备方向变化");
+				}
+			}
+		}
+	}
+</script>
+
+<style>
+	
+</style>