无法连接到 google play 服务，总是出现连接失败错误答案

【问题标题】：Unable to connect to google play services, always get connection failed error无法连接到 google play 服务，总是出现连接失败错误
【发布时间】：2016-11-23 07:38:04
【问题描述】：

我有以下简单的代码来获取最后一个位置：

build.gardle 依赖文件：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion "25.0.0"
    defaultConfig {
        applicationId "com.example.naresh2575.location"
        minSdkVersion 15
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:24.2.1'
    testCompile 'junit:junit:4.12'
    compile 'com.google.android.gms:play-services:10.0.0'
}

在清单文件中，我使用以下权限

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

这是我的活动文件：

public class MainActivity
        extends AppCompatActivity
        implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener
{

    GoogleApiClient mGoogleApiClient;
    Location mLastLocation;
    TextView tvLatLong;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvLatLong = (TextView) findViewById(R.id.tvLatLong);
        buildGoogleApiClient();
    }

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

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

    protected synchronized void buildGoogleApiClient()
    {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
    }

    public void onConnected(Bundle connectionHint)
    {
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
        {
            return;
        }
        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if (mLastLocation != null)
        {
            tvLatLong.setText("Latitude: " + String.valueOf(mLastLocation.getLatitude()) + " Longitude: " + String.valueOf(mLastLocation.getLongitude()));
        }
        else
        {
            tvLatLong.setText("mLastLocation is null");
        }
    }

    @Override
    public void onConnectionSuspended(int i) {
        Toast.makeText(this, "Connection suspended...", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Toast.makeText(this, "Failed to connect...", Toast.LENGTH_SHORT).show();
    }
}

上面的代码很简单，但是当我运行我的应用程序时，我总是收到写在onConnectionFailed中的消息“连接失败...”。这意味着我无法连接到 google play 服务。我需要在哪里寻找它？

【问题讨论】：

标签： android android-studio google-play-services

【解决方案1】：

您是否尝试使用 SHA-1 密钥在 Google 开发者控制台中创建项目？创建项目后，您可以从控制台处理身份验证密钥，您可以使用此身份验证密钥解决此问题。

【讨论】：