Android GPS獲取當前經緯度座標
阿新 • • 發佈:2018-11-01
APP中可能會遇到一種需求,就是將當前所在位置的座標傳到伺服器上,今天我提供三種途徑去獲取經緯度座標資訊,第一種是通過Android API來實現,第二種通過百度地圖API來實現,第三種通過天地圖API來實現。
第一種方法(Android API實現),廢話不多說,上程式碼。
MainActivity程式碼如下:
main.xml佈局如下public class MainActivity extends Activity { private static final String TAG = MainActivity.class.getSimpleName(); private double latitude = 0.0; private double longitude = 0.0; private TextView info; private LocationManager locationManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); info = (TextView) findViewById(R.id.tv); locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) { getLocation(); //gps已開啟 } else { toggleGPS(); new Handler() { }.postDelayed(new Runnable() { @Override public void run() { getLocation(); } }, 2000); } } private void toggleGPS() { Intent gpsIntent = new Intent(); gpsIntent.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); gpsIntent.addCategory("android.intent.category.ALTERNATIVE"); gpsIntent.setData(Uri.parse("custom:3")); try { PendingIntent.getBroadcast(this, 0, gpsIntent, 0).send(); } catch (CanceledException e) { e.printStackTrace(); locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, locationListener); Location location1 = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); if (location1 != null) { latitude = location1.getLatitude(); // 經度 longitude = location1.getLongitude(); // 緯度 } } } private void getLocation() { Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); if (location != null) { latitude = location.getLatitude(); longitude = location.getLongitude(); } else { locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, locationListener); } info.setText("緯度:" + latitude + "\n" + "經度:" + longitude); } LocationListener locationListener = new LocationListener() { // Provider的狀態在可用、暫時不可用和無服務三個狀態直接切換時觸發此函式 @Override public void onStatusChanged(String provider, int status, Bundle extras) { } // Provider被enable時觸發此函式,比如GPS被開啟 @Override public void onProviderEnabled(String provider) { Log.e(TAG, provider); } // Provider被disable時觸發此函式,比如GPS被關閉 @Override public void onProviderDisabled(String provider) { Log.e(TAG, provider); } // 當座標改變時觸發此函式,如果Provider傳進相同的座標,它就不會被觸發 @Override public void onLocationChanged(Location location) { if (location != null) { Log.e("Map", "Location changed : Lat: " + location.getLatitude() + " Lng: " + location.getLongitude()); latitude = location.getLatitude(); // 經度 longitude = location.getLongitude(); // 緯度 } } }; /* * * 開啟和關閉gps第二種方法 * private void openGPSSettings() { //獲取GPS現在的狀態(開啟或是關閉狀態) boolean gpsEnabled = Settings.Secure.isLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER); if (gpsEnabled) { //關閉GPS Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, false); } else { //開啟GPS Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, true); } }*/ }
清單檔案如下:<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/layout" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/white" android:orientation="vertical" > <TextView android:id="@+id/tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="經緯度資訊:" android:textColor="#660000" android:textSize="20sp" /> </LinearLayout>
執行結果如下<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.tqmapdemo" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /> <!-- 連線網際網路Internet許可權 --> <uses-permission android:name="android.permission.INTERNET" /> <!-- GPS定位許可權 --> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@android:style/Theme.Black" > <activity android:name="com.example.tqmapdemo.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
第二種方法(百度地圖API實現,注:需要自己申請apikey)
下載Demo請猛戳
第三種方法(天地圖API實現)