andorid简易定位

权限：

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>

布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_dingwei"
    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="com.example.fuxin_zhongji.dingwei">
<TextView
    android:id="@+id/tv1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/tv2"
        android:layout_below="@+id/tv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</RelativeLayout>

main：

package com.example.fuxin_zhongji;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class dingwei extends AppCompatActivity {
    private LocationManager locationManager;
    private TextView tv1;
    private TextView tv2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_dingwei);
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        initLinter();
        initView();

    }

    private void initLinter() {
        final LocationListener lo = new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {
                //纬度
                double latitude = location.getLatitude();
                //经度
                double longitude = location.getLongitude();
                tv1.setText(String.valueOf(latitude));
                tv2.setText(String.valueOf(longitude));

            }

            @Override
            public void onStatusChanged(String s, int i, Bundle bundle) {

            }

            @Override
            public void onProviderEnabled(String s) {

            }

            @Override
            public void onProviderDisabled(String s) {

            }
        };


        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, lo);

    }

    private void initView() {
        tv1 = (TextView) findViewById(R.id.tv1);
        tv2 = (TextView) findViewById(R.id.tv2);
    }
}