【移動應(yīng)用開發(fā)技術(shù)】如何使用Android實現(xiàn)地理定位功能

【移動應(yīng)用開發(fā)技術(shù)】如何使用Android實現(xiàn)地理定位功能

這篇文章給大家分享的是有關(guān)如何使用Android實現(xiàn)地理定位功能的內(nèi)容。在下覺得挺實用的，因此分享給大家做個參考，一起跟隨在下過來看看吧。首先需要的權(quán)限有<uses-permission

android:name="android.permission.ACCESS_COARSE_LOCATION"

/>

<uses-permission

android:name="android.permission.ACCESS_FINE_LOCATION"/>

<uses-permission

android:name="android.permission.INTERNET"/>然后是里面的代碼package

com.example.a5.myapplication;

import

android.Manifest;

import

android.content.Context;

import

android.content.pm.PackageManager;

import

android.location.Criteria;

import

android.location.Location;

import

android.location.LocationListener;

import

android.location.LocationManager;

import

android.support.v4.app.ActivityCompat;

import

android.support.v7.app.AlertDialog;

import

android.support.v7.app.AppCompatActivity;

import

android.os.Bundle;

import

android.view.View;

import

android.view.Window;

import

android.view.WindowManager;

import

android.webkit.WebView;

import

android.widget.Button;

import

android.widget.TextView;

public

class

MainActivity

extends

AppCompatActivity

{

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_NO_TITLE);

//全屏

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN);

setContentView(R.layout.activity_main);

Button

button

=

(Button)

findViewById(R.id.button);

button.setOnClickListener(new

View.OnClickListener()

{

@Override

public

void

onClick(View

v)

{

//獲取位置服務(wù)

LocationManager

locationManager

=

(LocationManager)

MainActivity.this.getSystemService(Context.LOCATION_SERVICE);

Criteria

criteria

=

new

Criteria();

//ACCURACY_HIGH/ACCURACY_LOW精度選擇

criteria.setAccuracy(Criteria.ACCURACY_FINE);

//高度

criteria.setAltitudeRequired(true);

//方位信息

criteria.setBearingRequired(true);

//是否允許付費

criteria.setCostAllowed(true);

//對電量的要求

criteria.setPowerRequirement(Criteria.POWER_LOW);

//速度

criteria.setSpeedRequired(true);

//獲取最佳服務(wù)

String

provider

=

locationManager.getBestProvider(criteria,

true);

//權(quán)限檢查

if

(ActivityCompat.checkSelfPermission(MainActivity.this,

Manifest.permission.ACCESS_FINE_LOCATION)

!=

PackageManager.PERMISSION_GRANTED

&&

ActivityCompat.checkSelfPermission(MainActivity.this,

Manifest.permission.ACCESS_COARSE_LOCATION)

!=

PackageManager.PERMISSION_GRANTED)

{

return;

}

//獲取到了位置

Location

location

=

locationManager.getLastKnownLocation(provider);

//開啟地理位置監(jiān)聽定位類型、毫秒、米、監(jiān)聽時間

locationManager.requestLocationUpdates(provider,3000,1,new

listener());

locateResult(location);

}

});

}

public

class

listener

implements

LocationListener

{

@Override

public

void

onLocationChanged(Location

location)

{

//位置變化，獲取最新的位置

locateResult(location);

}

@Override

public

void

onStatusChanged(String

provider,

int

status,

Bundle

extras)

{

}

@Override

public

void

onProviderEnabled(String

provider)

{

}

@Override

public

void

onProviderDisabled(String

provider)

{

}

}

public

void

locateResult(Location

location){

new

AlertDialog.Builder(MainActivity.this)

.setMessage("緯度"

+

String.valueOf(location.getLatitude())

+

"\n經(jīng)度"

+

String.valueOf(location.getLongitude())

+

"\n速度"

+

String.valueOf(location.getSpeed())

+

"\n高度"

+

String.valueOf(location.getAltitude())

+

"\n朝向"

+

String.valueOf(locat