在Android Studio上设置位置服务

Question

I am trying to set up Location services in an app according to instructions of developer.android.com . I have inserted the following code into the onCreate method

// Create an instance of GoogleAPIClient.
        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API)
                    .build();
        }

The class names GoogleApiClient and LocationServices appear in red and "Cannot resolve Symbol" appears on the tooltip. I have tried

• Rebuilding Project
• Cleaning Project
• Invalidate Caches/Restart
• using an import from developer.android.com

import com.google.android.gms.common.api.GoogleApiClient;

but to no avail. Will anyone please advise me? :)

Answer 1

Have You Declared this?

     private GoogleApiClient mGoogleApiClient;

and add this to your gradle file, and then sync.

then clean and build.

    apply plugin: 'com.android.application'
...

dependencies {
    compile 'com.google.android.gms:play-services:9.2.1'
}

Have a look at below link,

https://developers.google.com/android/guides/setup