asasassa

最新推荐文章于 2021-03-27 09:04:19 发布

ggyyleo

最新推荐文章于 2021-03-27 09:04:19 发布

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本文介绍了一个Android应用中实现位置更新及发送功能的方法。通过监听GPS位置变化，并使用按钮触发位置信息的更新与发送，实现了对当前地理位置的实时获取与远程分享。文中详细展示了如何初始化UI元素、设置监听器以及捕获并处理异常。

@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); updateBtn = (Button) this.findViewById(R.id.update); sendBtn = (Button) this.findViewById(R.id.send); utc = (TextView) this.findViewById(R.id.val_UTC); dataStatus = (TextView) this.findViewById(R.id.val_data_status); currentLatitude = (TextView) this .findViewById(R.id.val_current_latitude); currentLontitude = (TextView) this .findViewById(R.id.val_current_longitude); direction = (TextView) this.findViewById(R.id.val_direction); speed = (TextView) this.findViewById(R.id.val_speed); locationlisterner = new TraceMeLocationListener(this); locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationlisterner); updateBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Location location = locationManager .getLastKnownLocation(LocationManager.GPS_PROVIDER); updateLocationInfo(location); } }); sendBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Location location = locationManager .getLastKnownLocation(LocationManager.GPS_PROVIDER); updateLocationInfo(location); try { sendMyLocation(location); } catch (URISyntaxException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }); }