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| − | <div id="examples_center"> | + | <div id="examples_center"><!-- 页面标题 --><div class="title-hd">后台持续定位</div><!-- 标题下子标题及简介，可有多个 --><div class="title-mi">功能场景</div><div class="wrap-mi">本示例展示了在应用退后台的状态下，如何持续记录位置信息，增加定位进程存活率。</div><!-- --></div><div class="demos_wrap"><div class="header"><div class="andiord-header active">Android</div><div class="ios-header">iOS</div></div><div class="andiord-wrap wrap"><div class="wrap-wp"><div class="wrap_left"><div class="left-video"><div class="img-bg-and"></div><div class="phone-android"><div class="video-wrap infor"><div class="video-control"></div><!-- 安卓视频位置 (不写协议)--><pre>//mapopen-website-wiki.bj.bcebos.com/demos/AndroidVideos/后台定位.mp4</pre> |
| − | + | </div><div class="video-icon-and"><div class="play play-and"></div><div class="stop stop-and"></div></div></div><div class="progressWrap-hide-and"></div><div id="videoControls-and"><div id="progressWrap-and"><div id="playProgress-and"></div></div></div></div><div class="left-qrCode"><!-- 安卓二维码位置 --><div class="qrCode-and">1590746640|//mapopen-website-wiki.bj.bcebos.com/demos/newqrcodes/后台持续定位.png</div><div>扫码体验</div></div></div><div class="wrap_right"><div class="wrap_right_nav"><div class="wrap_right_nav_l"><div>使用产品</div><div><!-- 安卓使用产品下选项，可有多个 --><!-- 产品1|/index.php?title=test --><div class="documentA">Android定位SDK|/index.php?title=android-locsdk</div><div>></div><div class="documentA">后台持续定位|/index.php?title=android-locsdk/guide/addition-func/android10-notice</div></div></div><div class="wrap_right_nav_r">下载源码</div><!-- 安卓源码地址 --><div class="github-url-and">//mapopen-website-wiki.bj.bcebos.com/demos/location/ForegroundLocationDemo.zip</div></div><div class="wrap_table"><div class="table_nav"><div class="left-icon"></div><div>核心接口</div></div><div class="table_wrap"><div class="table_wrap_title"><div>类</div><div>接口</div><div>描述</div></div><!-- 表格接口，可有多个 --><div class="table_wrap_con"><div class="table_wrap_w"><div><div class="table-wrap-className">LocationClient</div></div><div><div>start()</div></div><div><div>启动定位sdk</div></div></div><!-- --><div class="table_wrap_w"><div><div class="table-wrap-className">LocationClient</div></div><div><div>setLocOption(LocationClientOption locOption)</div></div><div><div>给定位客户端设置参数</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">LocationClient</div></div><div><div>enableLocInForeground(int id, android.app.Notification notification)</div></div><div><div>将定位SDK的SERVICE设置成为前台服务, 提高定位进程存活率</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">LocationClient</div></div><div><div>disableLocInForeground(boolean removeNotification)</div></div><div><div>关闭前台定位服务</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">LocationClientOption</div></div><div><div>setScanSpan(int scanSpan)</div></div><div><div>连续定位时间间隔，单位是毫秒 当<1000(1s)时，定时定位无效</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">BDAbstractLocationListener</div></div><div><div>onReceiveLocation(BDLocation location)</div></div><div><div>监听定位结果回调函数</div></div></div></div></div></div></div></div><div class="pre-nav"><div class="left-icon"></div><div>重点关注</div></div><div class="pre-nav" style="margin-left: 10px;"><div>为了保证定位可以在后台一直运行，开发者可以通过开启前台服务，来保证SDK服务的存活，达到后台定位效果。</div></div><div class="pre-nav"><div class="left-icon"></div><div>核心代码</div></div><div class="pre-nav"><div>1.创建前台通知服务</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>JAVA</div></div><!-- 安卓示例代码位置 --><div class="pre-wrap-w pre-wrap-w-and"><pre class="prettyprint prettyprinted pre-and">/** | |
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* 初始化前台服务 | * 初始化前台服务 | ||
*/ | */ | ||
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} | } | ||
</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-and">复制</div><div class="pre-btn-cb-and">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>2.将sdk服务设置为前台通知服务</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>JAVA</div></div><!-- 安卓示例代码位置 --><div class="pre-wrap-w pre-wrap-w-and"><pre class="prettyprint prettyprinted pre-and">// 将定位SDK的SERVICE设置成为前台服务, 提高定位进程存活率 | |
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mClient.enableLocInForeground(1, mNotification); | mClient.enableLocInForeground(1, mNotification); | ||
</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-and">复制</div><div class="pre-btn-cb-and">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>3.创建后台定位监听</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>JAVA</div></div><!-- 安卓示例代码位置 --><div class="pre-wrap-w pre-wrap-w-and"><pre class="prettyprint prettyprinted pre-and">class MyLocationListener extends BDAbstractLocationListener { | |
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@Override | @Override | ||
public void onReceiveLocation(BDLocation bdLocation) { | public void onReceiveLocation(BDLocation bdLocation) { | ||
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} | } | ||
</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-and">复制</div><div class="pre-btn-cb-and">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>4.配置后台连续定位参数并启动定位</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>JAVA</div></div><!-- 安卓示例代码位置 --><div class="pre-wrap-w pre-wrap-w-and"><pre class="prettyprint prettyprinted pre-and">// 创建定位客户端 | |
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mClient = new LocationClient(this); | mClient = new LocationClient(this); | ||
myLocationListener = new MyLocationListener(); | myLocationListener = new MyLocationListener(); | ||
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mClient.start(); | mClient.start(); | ||
</pre> | </pre> | ||
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<div class="left-icon"></div> | <div class="left-icon"></div> | ||
<div>更多功能</div> | <div>更多功能</div> | ||
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<div class="documentA">添加文字和信息窗|/index.php?title=test</div> | <div class="documentA">添加文字和信息窗|/index.php?title=test</div> | ||
</div> | </div> | ||
| − | </div> --> | + | </div> --></div><div class="ios-wrap wrap" style="display: none;"><div class="wrap-wp"><div class="wrap_left"><div class="left-video"><div class="img-bg-ios"></div><div class="phone-ios"><div class="video-wrap infor"><div class="video-control"></div><!-- ios视频位置 --><pre>//mapopen-website-wiki.bj.bcebos.com/demos/iosVideos/location/后台持续定位@1x.mp4</pre> |
| − | + | </div><div class="video-icon-ios"><div class="play play-ios"></div><div class="stop stop-ios"></div></div></div><div class="progressWrap-hide-ios"></div><div id="videoControls-ios"><div id="progressWrap-ios"><div id="playProgress-ios"></div></div></div></div><div class="left-qrCode iosqrCode"><!-- ios二维码位置 --><div class="qrCode-ios">1590746640|//mapopen-website-wiki.bj.bcebos.com/demos/ioscodes/后台持续定位@1xios.png</div><div>扫码体验</div></div></div><div class="wrap_right"><div class="wrap_right_nav"><div class="wrap_right_nav_l"><div>使用产品</div><div><!-- IOS使用产品下选项，可有多个 --><!-- 产品1|/index.php?title=test --><div class="documentA">iOS定位SDK|/index.php?title=ios-locsdk</div><!-- --></div></div><div class="wrap_right_nav_r">下载源码</div><!-- IOS源码地址 --><div class="github-url-ios">//mapopen-website-wiki.bj.bcebos.com/demos/location/ForegroundLocationSDKDemo.zip</div></div><div class="wrap_table"><div class="table_nav"><div class="left-icon"></div><div>核心接口</div></div><div class="table_wrap"><div class="table_wrap_title"><div>类</div><div>接口</div><div>描述</div></div><!-- ios表格接口内容，可有多个 --><!-- 表格接口，可有多个 --><div class="table_wrap_con"><div class="table_wrap_w"><div><div class="table-wrap-className">BMKLocationManager</div></div><div><div>- (void)startUpdatingLocation;</div></div><div><div>开始连续定位</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">BMKLocationManager</div></div><div><div>- (void)stopUpdatingLocation;</div></div><div><div>停止连续定位</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">BMKLocationManager</div></div><div><div>- (void)BMKLocationManager:(BMKLocationManager * _Nonnull)manager doRequestAlwaysAuthorization:(CLLocationManager * _Nonnull)locationManager;</div></div><div><div>后台定位权限请求。为了适配app store关于新的后台定位的审核机制当开发者在plist配置NSLocationAlwaysUsageDescription或者NSLocationAlwaysAndWhenInUseUsageDescription时，<br/>///需要在该delegate中调用后台定位api：[locationManager requestAlwaysAuthorization]</div></div></div><div class="table_wrap_w"><div><div class="table-wrap-className">BMKLocationManager</div></div><div><div>- (void)BMKLocationManager:(BMKLocationManager *)manager didUpdateLocation:(BMKLocation *)location orError:(NSError *)error;</div></div><div><div>连续定位回调函数</div></div></div></div></div></div></div></div><div class="pre-nav"><div class="left-icon"></div><div>重点关注</div></div><div class="pre-nav" style="margin-left: 10px;"><div style="line-height: 26px;">为了保证定位可以在后台一直运行，开发者需配置info.pist、 申请后台定位权限、开启 TARGETS->Capabilities->Background Modes，来保证SDK服务的存活，达到后台定位效果。</div></div><div class="pre-nav"><div class="left-icon"></div><div>核心代码</div></div><div class="pre-nav"><div>1.创建定位管理类对象，关键属性allowsBackgroundLocationUpdates设置为YES</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>Objective-C</div></div><div class="pre-wrap-w pre-wrap-w-ios code_container"><!-- ios示例代码位置 --><pre class="prettyprint prettyprinted pre-ios">_locationManager = [[BMKLocationManager alloc] init]; | |
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| − | _locationManager = [[BMKLocationManager alloc] init]; | + | |
// 设置返回位置的坐标系类型 | // 设置返回位置的坐标系类型 | ||
_locationManager.coordinateType = BMKLocationCoordinateTypeBMK09LL; | _locationManager.coordinateType = BMKLocationCoordinateTypeBMK09LL; | ||
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</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-ios">复制</div><div class="pre-btn-cb-ios">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>2.请求后台定位权限</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>Objective-C</div></div><div class="pre-wrap-w pre-wrap-w-ios code_container"><!-- ios示例代码位置 --><pre class="prettyprint prettyprinted pre-ios">- (void)BMKLocationManager:(BMKLocationManager * _Nonnull)manager doRequestAlwaysAuthorization:(CLLocationManager * _Nonnull)locationManager { | |
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| − | - (void)BMKLocationManager:(BMKLocationManager * _Nonnull)manager doRequestAlwaysAuthorization:(CLLocationManager * _Nonnull)locationManager { | + | |
[locationManager requestAlwaysAuthorization]; | [locationManager requestAlwaysAuthorization]; | ||
} | } | ||
</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-ios">复制</div><div class="pre-btn-cb-ios">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>3.实现定位回调代理方法</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>Objective-C</div></div><div class="pre-wrap-w pre-wrap-w-ios code_container"><!-- ios示例代码位置 --><pre class="prettyprint prettyprinted pre-ios">- (void)BMKLocationManager:(BMKLocationManager *)manager didUpdateLocation:(BMKLocation *)location orError:(NSError *)error { | |
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| − | - (void)BMKLocationManager:(BMKLocationManager *)manager didUpdateLocation:(BMKLocation *)location orError:(NSError *)error { | + | |
// 定位错误信息 | // 定位错误信息 | ||
if (error) { | if (error) { | ||
| − | NSLog(@"locError:{%zd - %@};", error.code, error.localizedDescription); | + | NSLog(@"locError:{%zd - %@};", error.code, error.localizedDescription); |
return; | return; | ||
} | } | ||
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</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-ios">复制</div><div class="pre-btn-cb-ios">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>4.开始后台定位</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>Objective-C</div></div><div class="pre-wrap-w pre-wrap-w-ios code_container"><!-- ios示例代码位置 --><pre class="prettyprint prettyprinted pre-ios">[self.locationManager startUpdatingLocation]; | |
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| − | [self.locationManager startUpdatingLocation]; | + | |
</pre> | </pre> | ||
| − | + | <div class="pre-btn"><div class="pre-btn-copy-ios">复制</div><div class="pre-btn-cb-ios">深色</div></div><div class="success">复制成功</div></div></div><div class="pre-nav"><div>5.停止后台定位</div></div><div class="pre-wrap"><div class="pre-wrap-nav"><div>Objective-C</div></div><div class="pre-wrap-w pre-wrap-w-ios code_container"><!-- ios示例代码位置 --><pre class="prettyprint prettyprinted pre-ios">[self.locationManager stopUpdatingLocation]; | |
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2020年12月15日 (二) 11:46的版本
后台持续定位
功能场景
本示例展示了在应用退后台的状态下，如何持续记录位置信息，增加定位进程存活率。
Android
iOS
//mapopen-website-wiki.bj.bcebos.com/demos/AndroidVideos/后台定位.mp4
1590746640|//mapopen-website-wiki.bj.bcebos.com/demos/newqrcodes/后台持续定位.png
扫码体验
使用产品
Android定位SDK|/index.php?title=android-locsdk
>
后台持续定位|/index.php?title=android-locsdk/guide/addition-func/android10-notice
下载源码
//mapopen-website-wiki.bj.bcebos.com/demos/location/ForegroundLocationDemo.zip
核心接口
类
接口
描述
LocationClient
start()
启动定位sdk
LocationClient
setLocOption(LocationClientOption locOption)
给定位客户端设置参数
LocationClient
enableLocInForeground(int id, android.app.Notification notification)
将定位SDK的SERVICE设置成为前台服务, 提高定位进程存活率
LocationClient
disableLocInForeground(boolean removeNotification)
关闭前台定位服务
LocationClientOption
setScanSpan(int scanSpan)
连续定位时间间隔，单位是毫秒 当<1000(1s)时，定时定位无效
BDAbstractLocationListener
onReceiveLocation(BDLocation location)
监听定位结果回调函数
重点关注
为了保证定位可以在后台一直运行，开发者可以通过开启前台服务，来保证SDK服务的存活，达到后台定位效果。
核心代码
1.创建前台通知服务
JAVA
/**
* 初始化前台服务
*/
private void initNotification () {
//设置后台定位
//android8.0及以上使用NotificationUtils
if (Build.VERSION.SDK_INT >= 26) {
NotificationUtils notificationUtils = new NotificationUtils(this);
Notification.Builder builder = notificationUtils.getAndroidChannelNotification
("适配android 8限制后台定位功能", "正在后台定位");
mNotification = builder.build();
} else {
//获取一个Notification构造器
Notification.Builder builder = new Notification.Builder(MainActivity.this);
Intent nfIntent = new Intent(MainActivity.this, MainActivity.class);
builder.setContentIntent(PendingIntent.
getActivity(MainActivity.this, 0, nfIntent, 0)) // 设置PendingIntent
.setContentTitle("适配android 8限制后台定位功能") // 设置下拉列表里的标题
.setSmallIcon(R.mipmap.ic_launcher) // 设置状态栏内的小图标
.setContentText("正在后台定位") // 设置上下文内容
.setWhen(System.currentTimeMillis()); // 设置该通知发生的时间
mNotification = builder.build(); // 获取构建好的Notification
}
mNotification.defaults = Notification.DEFAULT_SOUND; //设置为默认的声音
}
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2.将sdk服务设置为前台通知服务
JAVA
// 将定位SDK的SERVICE设置成为前台服务, 提高定位进程存活率
mClient.enableLocInForeground(1, mNotification);
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3.创建后台定位监听
JAVA
class MyLocationListener extends BDAbstractLocationListener {
@Override
public void onReceiveLocation(BDLocation bdLocation) {
// 此处获取后台定位数据
}
}
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4.配置后台连续定位参数并启动定位
JAVA
// 创建定位客户端
mClient = new LocationClient(this);
myLocationListener = new MyLocationListener();
// 注册定位监听
mClient.registerLocationListener(myLocationListener);
LocationClientOption mOption = new LocationClientOption();
// 可选，默认0，即仅定位一次，设置发起连续定位请求的间隔需要大于等于1000ms才是有效的
mOption.setScanSpan(2000);
// 可选，默认gcj02，设置返回的定位结果坐标系，如果配合百度地图使用，建议设置为bd09ll;
mOption.setCoorType("bd09ll");
// 可选，默认false，设置是否开启Gps定位
mOption.setOpenGps(true);
// 设置定位参数
mClient.setLocOption(mOption);
// 启动定位
mClient.start();
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