uniapp微信小程序实现全屏悬浮按钮可拖动，自动吸附边缘效果demo(整理)_微信小程序全局悬浮按钮

<template>
	<view class="demo">
		<status-bar title="测试页面"></status-bar>
		<movable-area class="movableArea">
			<movable-view class="movableView" :position="position" :x="x" :y="y" :direction="direction"
				:damping="damping" @change="onChange" @touchend="onTouchend">
				<image src="../../static/img/shou.gif" mode="widthFix" class="iconImage" @click="iconClick"></image>
				<!-- <button open-type='contact' session-from='' class="contact">联系客服</button> -->
			</movable-view>
		</movable-area>
	</view>
</template>

<script>
	export default {
		components: {

		},
		data() {
			return {
				description: "测试页面",
				x: 0,
				y: 0,
				x1: 0,
				x2: 0,
				y1: 0,
				y2: 0,
				move: {
					x: 0,
					y: 0
				}

			}
		},
		// 侦听器
		watch: {

		},
		// 计算属性
		computed: {

		},
		//组件创建
		created() {

		},
		// 页面加载
		onLoad(e) {

		},
		// 页面显示
		onShow() {

		},
		props: {
			damping: {
				type: Number,
				default: 10
			},
			direction: {
				type: String,
				default: "all"
			},
			position: {
				type: Number,
				default: 4
			},
		},
		mounted() {
			uni.getSystemInfo({
				success: (res) => {
					this.x1 = 0;
					this.x2 = parseInt(res.windowWidth) - 50;
					this.y1 = 0;
					this.y2 = parseInt(res.windowHeight) - 20;
					setTimeout(() => {
						if (this.position == 1 || this.position == 2) this.y = parseInt(this.y2 * 0.2);
						if (this.position == 3 || this.position == 4) this.y = parseInt(this.y2 * 0.8);
						if (this.position == 1 || this.position == 3) this.x = parseInt(this.x1);
						if (this.position == 2 || this.position == 4) this.x = parseInt(this.x2);
						this.move.x = this.x;
						this.move.y = this.y;
					}, 1000)
				}
			})
		},

		// 方法
		methods: {
			onChange(e) {
				if (e.detail.source === "touch") {
					this.move.x = e.detail.x;
					this.move.y = e.detail.y;
				}
			},
			onTouchend() {
				this.x = this.move.x;
				this.y = this.move.y;
				setTimeout(() => {
					if (this.move.x < this.x2 / 2) this.x = this.x1;
					else this.x = this.x2;
					console.log(this.x, this.y)
				}, 100)
			},
			// 点击按钮跳转
			iconClick() {
				console.log('点击跳转');
			},
		},
		// 页面隐藏
		onHide() {

		},
		// 页面卸载
		onUnload() {

		},
		// 触发下拉刷新
		onPullDownRefresh() {

		},
		// 页面上拉触底事件的处理函数
		onReachBottom() {

		},
	}
</script>

<style lang="scss" scoped>
	.demo {
		height: 100vh;
		overflow: auto;
		background-color: #fcfcfc;

		.movableArea {
			position: fixed;
			top: 0;
			left: 0;
			width: 100%;
			height: 100%;
			pointer-events: none; //设置area元素不可点击，则事件便会下移至页面下层元素
			z-index: 999;

			.movableView {
				pointer-events: auto; //可以点击
				width: 120rpx;
				height: 120rpx;
				padding: 10rpx;
				border-radius: 100%;
				border: 2px solid #f8931f;

				.iconImage {
					display: block;
					width: 120rpx;
					height: 120rpx;
					// animation: iconImage 5s linear infinite;	//进行旋转
				}

				@keyframes iconImage {
					0% {
						-webkit-transform: rotate(0deg);
					}

					25% {
						-webkit-transform: rotate(90deg);
					}

					50% {
						-webkit-transform: rotate(180deg);
					}

					75% {
						-webkit-transform: rotate(270deg);
					}

					100% {
						-webkit-transform: rotate(360deg);
					}
				}

				// 客服
				.contact {
					width: 50px;
					height: 50px;
					overflow: hidden;
					position: absolute;
					left: 0px;
					top: 0px;
					border-radius: 100%;
					opacity: 0;
				}

			}
		}
	}
</style>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196

案例二、

<template>
	<movable-area class="movable-area">
		<movable-view class="movable-view" :x="x" :y="y" direction="all">
			<view class="float-btn">悬浮</view>
		</movable-view>
	</movable-area>
</template>
<script>
	export default {
		data() {
			return {
				// x: 280,
				// y: 700,
				x: 0,
				y: 0,
				screenWidth: 0,
				screenHeight: 0
			}
		},
		// 页面加载
		onLoad(e) {
			const res = uni.getSystemInfoSync()
			this.screenWidth = res.windowWidth;
			this.screenHeight = res.windowHeight;
			this.x = this.screenWidth - 100;
			this.y = this.screenHeight - 150;
			console.log(this.screenWidth, this.screenHeight);
			console.log(this.x, 'this.x');
			console.log(this.y, 'this.y');
		},
		// 页面显示
		onShow() {

		},
	}
</script>
<style scoped lang="less">
	page {
		width: 100vw;
		height: 100%;
	}

	.movable-area {
		//  可移动的范围    
		height: 100vh;
		width: 750rpx;
		top: 0;
		position: fixed;
		pointer-events: none; //鼠标事件可以渗透  
	}

	.movable-view {
		width: 140rpx; // 按钮大小    
		height: 140rpx;
		pointer-events: auto; //恢复鼠标事件  
	}

	.float-btn {
		width: 140rpx;
		height: 140rpx;
		line-height: 140rpx;
		text-align: center;
		background: #e0241b;
		box-shadow: 0 3rpx 6rpx 1rpx rgba(224, 36, 27, .3);
		border-radius: 50%;
		position: fixed;
	}
</style>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68