HTML5 監聽當前位置

時間 2019-12-05

標籤 html5 html 監聽當前位置欄目 HTML5 简体版

原文原文鏈接

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>監聽當前位置</title>
		<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
		<style>
			table {border-collapse: collapse;}
			th, td {padding: 4px;}
			th {text-align:right;}
			
			.table-container
			{
			width: 100%;
			overflow-y: auto;
			_overflow: auto;
			margin: 0 0 1em;
			}
			table{border:0; border-collapse:collapse;}
			table td,table th{border:1px solid #999; padding:.5em 1em}
			//添加IOS下滾動條
			.table-container::-webkit-scrollbar
			{
			-webkit-appearance: none;
			width: 14px;
			height: 14px;
			}
			
			.table-container::-webkit-scrollbar-thumb
			{
			border-radius: 8px;
			border: 3px solid #fff;
			background-color: rgba(0, 0, 0, .3);
			}		
		</style>
	</head>
	<body>
	<div class="table-container">
		<table border="1" >
			<tr>
				<th>經度:</th><td id="longitude">-</td>
			</tr>
			<tr>
			
				<th>緯度:</th><td id="latitude">-</td>
			</tr>
			
			<tr>
				<th>海拔:</th><td id="altitude">-</td>
			</tr>
			<tr>
				<th>座標精度:</th><td id="accuracy">-</td>
			</tr>
			<tr>
				<th>海拔精度:</th><td id="altitudeAccuracy">-</td>
			</tr>
			<tr>
				<th>行進方向:</th><td id="heading">-</td>
			</tr>
			<tr>
				<th>行進速度:</th><td id="speed">-</td>
			</tr>
			<tr>
				<th>時間戳:</th><td id="timestamp">-</td>
			</tr>
			<tr>
				<th>錯誤碼:</th><td id="errcode">-</td>
			</tr>
			<tr>
				<th>錯誤信息:</th><td id="errmessage">-</td>
			</tr>
		</table>
		<button id="pressme">中止監聽</button>
	</div>
		<script>
			
			var options = {
				enableHighAccuracy: true,
				timeout: 2000,
				maximumAge: 30000
			};
			
			var watchID = navigator.geolocation.watchPosition(displayPosition, handleError, options);
			
			document.getElementById("pressme").onclick = function(e) {
				navigator.geolocation.clearWatch(watchID);
			};
			
			function displayPosition(pos) {
				var properties = ["longitude", "latitude", "altitude", "accuracy", "altitudeAccuracy", "heading", "speed"];
				for (var i =0; i< properties.length; i++) {
					var value = pos.coords[properties[i]];
					document.getElementById(properties[i]).innerHTML = value; 
				}
				document.getElementById("timestamp").innerHTML = pos.timestamp;
			}
			
			function handleError(err) {
				
				
				document.getElementById("errcode").innerHTML = err.code;
				
				switch(err.code) {
					case 1:
						
					   document.getElementById("errmessage").innerHTML = "用戶末受權使用地理定位功能"; 
					   break;
					case 2:
						 document.getElementById("errmessage").innerHTML = "不能肯定位置"; 
						  break;
					case 3:
						document.getElementById("errmessage").innerHTML = "請求位置的嘗試已超時"; 
						break;
						
						
						
					
				}
				//document.getElementById("errcode").innerHTML = err.code;
				//document.getElementById("errmessage").innerHTML = err.message;
			}
		</script>
	</body>
</html>

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