java Android使用GoogleAppClient获取用户位置纬度和经度

1 年，1 月 Questions & Answers 2611

我正在使用GoogleAppClient获取用户的纬度和经度，这就是我到目前为止所做的。我按照谷歌地图上的Udacity教程来做这件事。我做的和Udacity上显示的一模一样，但我的纬度和经度并不像instrutor上显示的那样

没有错误，所以我看不出错误在哪里。我已经安装了Google Play Services 10.2.0版，并在构建的依赖项部分输入了该版本。gradle应用程序
非常感谢您的帮助

package com.example.udacitylocation;

import 安卓.content.pm.PackageManager;
import 安卓.location.Location;
import 安卓.support.annotation.NonNull;
import 安卓.support.annotation.Nullable;
import 安卓.support.v4.app.ActivityCompat;
import 安卓.support.v7.app.AppCompatActivity;
import 安卓.os.Bundle;
import 安卓.util.Log;
import 安卓.view.Menu;
import 安卓.view.MenuItem;
import 安卓.widget.TextView;

import com.google.安卓.gms.common.ConnectionResult;
import com.google.安卓.gms.common.api.GoogleApiClient;
import com.google.安卓.gms.location.LocationServices;
import com.google.安卓.gms.location.LocationRequest;

public class MainActivity extends AppCompatActivity implements
    GoogleApiClient.ConnectionCallbacks,
    GoogleApiClient.OnConnectionFailedListener,
    com.google.安卓.gms.location.LocationListener
{
private final String LOG_TAG = "LaurenceTestApp";
private TextView txtOutput;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addApi(LocationServices.API)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .build();
    txtOutput = (TextView) findViewById(R.id.txtOutput);
}


@Override
public void onConnected(@Nullable Bundle bundle)
{
    mLocationRequest = LocationRequest.create(); // Another way to write a new object
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    mLocationRequest.setInterval(10); // Always write in milliseconds

    if (ActivityCompat.checkSelfPermission(this, 安卓.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 安卓.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
    {
        return;
    }
    LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}

@Override
public void onLocationChanged(Location location)
{
    Log.i(LOG_TAG, location.toString());
    txtOutput.setText(location.toString());
}

@Override
public void onConnectionSuspended(int i)
{
    Log.i(LOG_TAG, "GoogleApiClient connection has been suspended");
}

@Override
public void onConnectionFailed(ConnectionResult connectionResult)
{
    Log.i(LOG_TAG, "GoogleApiClient connection has failed");
}

@Override
protected void onStart()
{
    super.onStart();
    mGoogleApiClient.connect();
}

@Override
protected void onStop()
{
    mGoogleApiClient.disconnect();
    super.onStop();
}
}

XML文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
xmlns:tools="http://schemas.安卓.com/tools"
安卓:id="@+id/activity_main"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:paddingBottom="@dimen/activity_vertical_margin"
安卓:paddingLeft="@dimen/activity_horizontal_margin"
安卓:paddingRight="@dimen/activity_horizontal_margin"
安卓:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.udacitylocation.MainActivity">

<TextView
    安卓:layout_width="wrap_content"
    安卓:layout_height="wrap_content"
    安卓:textAppearance="?安卓:attr/textAppearanceLarge"
    安卓:id="@+id/txtOutput"
    安卓:text="Location Goes Here"/>

</RelativeLayout>

AndroidManifest。xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
      package="com.example.udacitylocation">

<application
    安卓:allowBackup="true"
    安卓:icon="@mipmap/ic_launcher"
    安卓:label="@string/app_name"
    安卓:supportsRtl="true"
    安卓:theme="@style/AppTheme">
    <meta-data 安卓:name="com.google.安卓.gms.version" 
    安卓:value="@integer/google_play_services_version"/>

    <activity 安卓:name=".MainActivity">
        <intent-filter>
            <action 安卓:name="安卓.intent.action.MAIN"/>

            <category 安卓:name="安卓.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>
</application>

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

</manifest>

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java Android使用GoogleAppClient获取用户位置纬度和经度

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