Android通过GPS获取定位的流程步骤

xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp">
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <!-- ...其他权限声明... -->
    <application>
        <!-- ...其他应用配置... -->
    </application>
</manifest>

LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

LocationListener locationListener = new LocationListener() {
    @Override
    public void onLocationChanged(Location location) {
        // 处理位置更新事件
        double latitude = location.getLatitude();
        double longitude = location.getLongitude();
        // ...
    }
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
        // 处理位置状态变化事件
    }
    @Override
    public void onProviderEnabled(String provider) {
        // 处理位置提供者启用事件
    }
    @Override
    public void onProviderDisabled(String provider) {
        // 处理位置提供者禁用事件
    }
};
// 注册位置监听器
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);

        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        criteria.setAltitudeRequired(false);
        criteria.setBearingRequired(false);
        criteria.setCostAllowed(true);
        criteria.setPowerRequirement(Criteria.POWER_LOW); // 低功耗
        List<String> providerList = locationManager.getProviders(true); // 获取GPS信息
        int i = 0;
        try {
            do {
                try {
                    i++;
                    // 通过不同的provider拿到location 
                    location = locationManager.getLastKnownLocation(providerList.get(i));
                    locationManager.requestLocationUpdates(providerList.get(i), 60000, 1,
                            locationListener);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } while (location == null && i < providerList.size());
        } catch (Exception e) {
            e.printStackTrace();
        }
        if (i == providerList.size()) {
            return;
        }
        new Thread() {
            @Override
            public void run() {
                // 使用GPS原始的定位，获取详细的地址，保存城市信息到本地
                try {
                    address = getAddress(context, location.getLatitude(),         location.getLongitude());
                    String addressStr = "\nGPS获取的位置详细信息：\n城市Locality：" +
                            address.getLocality() +
                            "\n街道thoroughfare：" +
                            address.getThoroughfare() +
                            "\n经度：" +
                            address.getLongitude() +
                            "\n纬度：" +
                            address.getLatitude();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }.start();

Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (lastKnownLocation != null) {
    double latitude = lastKnownLocation.getLatitude();
    double longitude = lastKnownLocation.getLongitude();
    // 处理最新位置信息
}