PlayServicesUtils.java 文件源码

/**
 * Check the device to make sure it has the Google Play Services APK. If
 * it doesn't, display a dialog that allows users to download the APK from
 * the Google Play Store or enable it in the device's system settings.
 */
public static boolean checkPlayServices(AppCompatActivity activity, int PLAY_SERVICES_RESOLUTION_REQUEST) {
    GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
    int resultCode = apiAvailability.isGooglePlayServicesAvailable(activity);
    if (resultCode != ConnectionResult.SUCCESS) {
        if (apiAvailability.isUserResolvableError(resultCode)) {
            apiAvailability.getErrorDialog(activity, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST)
                    .show();
        } else {
            MaterialDialog dialog = new MaterialDialog.Builder(activity)
                    .content("This device is not supported.")
                    .show();
        }
        return false;
    }
    return true;
}