場景

根據GPS獲取經緯度效果

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注：

博客：
https://blog.csdn.net/badao_liumang_qizhi
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實現

修改頁面布局代碼activity_main.xml，在頁面上添加一個TextView來顯示經緯度信息。

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><TextViewandroid:id="@+id/location"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_centerHorizontal="true"android:textStyle="bold" /> </RelativeLayout>

然后打開MainActivity.java,修改代碼如下

package com.badao.servicetest;import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat;import android.Manifest; import android.content.pm.PackageManager; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.view.WindowManager; import android.widget.TextView;public class MainActivity extends AppCompatActivity {private TextView text;? //定義用于顯示LocationProvider的TextView組件@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);?? //設置全屏顯示text = (TextView) findViewById(R.id.location);? //獲取顯示Location信息的TextView組件//獲取系統的LocationManager對象LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);//添加權限檢查if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {// TODO: Consider calling//??? ActivityCompat#requestPermissions// here to request the missing permissions, and then overriding//?? public void onRequestPermissionsResult(int requestCode, String[] permissions,//????????????????????????????????????????? int[] grantResults)// to handle the case where the user grants the permission. See the documentation// for ActivityCompat#requestPermissions for more details.return;}//設置每一秒獲取一次location信息locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,????? //GPS定位提供者1000,?????? //更新數據時間為1秒1,????? //位置間隔為1米//位置監聽器new LocationListener() {? //GPS定位信息發生改變時觸發，用于更新位置信息@Overridepublic void onLocationChanged(Location location) {//GPS信息發生改變時，更新位置locationUpdates(location);}@Override//位置狀態發生改變時觸發public void onStatusChanged(String provider, int status, Bundle extras) {}@Override//定位提供者啟動時觸發public void onProviderEnabled(String provider) {}@Override//定位提供者關閉時觸發public void onProviderDisabled(String provider) {}});//從GPS獲取最新的定位信息Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);locationUpdates(location);??? //將最新的定位信息傳遞給創建的locationUpdates()方法中}public void locationUpdates(Location location) {? //獲取指定的查詢信息//如果location不為空時if (location != null) {StringBuilder stringBuilder = new StringBuilder();??????? //使用StringBuilder保存數據//獲取經度、緯度、等屬性值stringBuilder.append("您的位置信息：\n");stringBuilder.append("經度：");stringBuilder.append(location.getLongitude());stringBuilder.append("\n緯度：");stringBuilder.append(location.getLatitude()); //??????????? stringBuilder.append("\n精確度："); //??????????? stringBuilder.append(location.getAccuracy()); //??????????? stringBuilder.append("\n高度："); //??????????? stringBuilder.append(location.getAltitude()); //??????????? stringBuilder.append("\n方向："); //??????????? stringBuilder.append(location.getBearing()); //??????????? stringBuilder.append("\n速度："); //??????????? stringBuilder.append(location.getSpeed()); //??????????? stringBuilder.append("\n時間："); //??????????? SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH mm ss");??? //設置日期時間格式 //??????????? stringBuilder.append(dateFormat.format(new Date(location.getTime())));text.setText(stringBuilder);??????????? //顯示獲取的信息} else {//否則輸出空信息text.setText("沒有獲取到GPS信息");}} }

最后打開AndroidMainfest.xml添加權限

??? <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

添加位置如下

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