一、代码
1.xml
(1)activity_main.xml
1 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> 2 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
2.java
(1)MainActivity.java
1 package com.location2; 2 3 import java.util.Iterator; 4 import java.util.List; 5 6 import android.app.Activity; 7 import android.content.Context; 8 import android.location.Criteria; 9 import android.location.LocationManager; 10 import android.os.Bundle; 11 import android.view.View; 12 import android.view.View.OnClickListener; 13 import android.widget.Button; 14 15 public class MainActivity extends Activity { 16 private Button scanProvider = null; 17 private Button bestProvider = null; 18 private LocationManager locationManager = null; 19 20 @Override 21 protected void onCreate(Bundle savedInstanceState) { 22 super.onCreate(savedInstanceState); 23 setContentView(R.layout.activity_main); 24 scanProvider = (Button)findViewById(R.id.ScanProvidersButton); 25 bestProvider = (Button)findViewById(R.id.bestProviderButton); 26 locationManager = (LocationManager) MainActivity.this.getSystemService(Context.LOCATION_SERVICE); 27 28 scanProvider.setOnClickListener(new OnClickListener() { 29 @Override 30 public void onClick(View v) { 31 List<String> providers = locationManager.getAllProviders(); 32 System.out.println("providers----->"); 33 for(Iterator<String> it = providers.iterator() ; it.hasNext() ; ) { 34 System.out.println(it.next()); 35 } 36 } 37 }); 38 39 bestProvider.setOnClickListener(new OnClickListener() { 40 @Override 41 public void onClick(View v) { 42 Criteria criteria = new Criteria(); 43 criteria.setAccuracy(Criteria.ACCURACY_FINE); 44 criteria.setPowerRequirement(Criteria.POWER_LOW); 45 criteria.setAltitudeRequired(false); 46 criteria.setSpeedRequired(false); 47 criteria.setCostAllowed(false); 48 //获得最好的provider，第二个参数表示是否考虑provider可用 49 String provider = locationManager.getBestProvider(criteria, false); 50 System.out.println("best provider ---> "+provider); 51 } 52 }); 53 } 54 }
package com.location2;
import java.util.Iterator;import java.util.List;
import android.app.Activity;import android.content.Context;import android.location.Criteria;import android.location.LocationManager;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;
public class MainActivity extends Activity {private Button scanProvider = null;private Button bestProvider = null;private LocationManager locationManager = null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main); scanProvider = (Button)findViewById(R.id.ScanProvidersButton); bestProvider = (Button)findViewById(R.id.bestProviderButton); locationManager = (LocationManager) MainActivity.this.getSystemService(Context.LOCATION_SERVICE); scanProvider.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {List<String> providers = locationManager.getAllProviders();System.out.println("providers----->");for(Iterator<String> it = providers.iterator() ; it.hasNext() ; ) {System.out.println(it.next());}}}); bestProvider.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Criteria criteria = new Criteria();criteria.setAccuracy(Criteria.ACCURACY_FINE);criteria.setPowerRequirement(Criteria.POWER_LOW);criteria.setAltitudeRequired(false);criteria.setSpeedRequired(false);criteria.setCostAllowed(false);//获得最好的provider，第二个参数表示是否考虑provider可用String provider = locationManager.getBestProvider(criteria, false);System.out.println("best provider ---> "+provider);}});}}