android 位置属性,android定位服务：查看位置源及其属性

activity_main.xml：

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context=".LocationProviderActivity" >

android:id="@+id/location"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/hello_world"

android:textSize="30dp"/>

LocationProviderActivity.java：

package com.example.demolocation;

import java.util.Iterator;

import java.util.List;

import android.app.Activity;

import android.location.Criteria;

import android.location.LocationManager;

import android.location.LocationProvider;

import android.os.Bundle;

import android.widget.TextView;

public class LocationProviderActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

StringBuilder sb = new StringBuilder();

LocationManager manager = (LocationManager)getSystemService(LOCATION_SERVICE);

List providers = manager.getAllProviders();

String str = "";

LocationProvider provider = null;

for(Iterator it = providers.iterator();it.hasNext();){

str = it.next();

sb.append("位置源:"+str+"\n精度：");

provider = manager.getProvider(str);

switch(provider.getAccuracy()){

case Criteria.ACCURACY_COARSE:

sb.append("中等精度");

break;

case Criteria.ACCURACY_FINE:

sb.append("低等精度");

break;

case Criteria.ACCURACY_HIGH:

sb.append("高等精度");

break;

}

sb.append("\n耗电量：");

switch(provider.getPowerRequirement()){

case Criteria.POWER_HIGH:

sb.append("高耗电量");

break;

case Criteria.POWER_MEDIUM:

sb.append("中耗电量");

break;

case Criteria.POWER_LOW:

sb.append("低耗电量");

break;

}

sb.append("\n-------------\n");

}

TextView text = (TextView)findViewById(R.id.location);

text.setText(sb.toString());

}

}

在 android配置文件中，增加android.permission.ACCESS_FINE_LOCATION权限：

AndroidManifest.xml：

package="com.example.demolocation"

android:versionCode="1"

android:versionName="1.0" >

android:minSdkVersion="8"

android:targetSdkVersion="19" />

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

android:name="com.example.demolocation.LocationProviderActivity"

android:label="@string/app_name" >