1. 程式人生 > >Android GPS獲取當前經緯度座標

Android GPS獲取當前經緯度座標

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:

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);
		}
	}*/
}
main.xml佈局如下

<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>
清單檔案如下:

<?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>
執行結果如下

下載Demo請猛戳

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)

下載Demo請猛戳