android网络-获取系统所有的LocationProvider名称

获取系统所有的LocationProvider名称

LocationProvider中最常用的两个GPS_PROVIDER和NETWORK_PROVIDER

程序效果：按下按钮，显示LocationProvider名称

主activity

package com.song;

import java.util.List;

import android.app.Activity;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class C612_GooglemapActivity extends Activity {
    /** Called when the activity is first created. */
	Button button;
	TextView textview;
	LocationManager manager;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        button=(Button)findViewById(R.id.button);
        textview=(TextView)findViewById(R.id.textview);
        manager=(LocationManager)getSystemService(LOCATION_SERVICE);//获取系统location服务
        button.setOnClickListener(new OnClickListener() {
			
			@Override  
			public void onClick(View v) {
				// TODO Auto-generated method stub
				List<String> list=manager.getAllProviders();//获取系统所有的LocationProvider名称
				String t="";
				for (int i = 0; i < list.size(); i++) {
					t+=list.get(i)+"\n";
				}
				textview.setText(t);
			}
		});
    }
}

显示效果