支持 GCM 网络管理器的 Google Play Services 的最低版本代码是多少？

Question

我想在我的应用程序中使用 GCM Network Manager。此库需要在用户设备上安装 Google Play Service 版本 7.5 及更高版本。我想检查是否安装了 Google Play Services 并且它的版本高于 7.5。我做了如下：

private boolean isGcmNetworkManagerAvailable(Context context) {
    final int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(context);
    if (status != ConnectionResult.SUCCESS) {
        return false;
    }

    final String gpsPackageName = GooglePlayServicesUtil.GOOGLE_PLAY_SERVICES_PACKAGE;
    PackageManager pm = context.getPackageManager();
    try {
        PackageInfo gpsPackageInfo = pm.getPackageInfo(gpsPackageName,0);
        int versionCode = gpsPackageInfo.versionCode;
        //
        // What is the version code of Google Play Services version 7.5? 
        //
        if(versionCode < GOOGLE_PLAY_SERVICES_7_5_VERSION_CODE) {
            return false;
        }
    } catch (PackageManager.NameNotFoundException e) {
        return false;
    }

    return true;
}

问题是我不知道 Google Play Services 7.5 版的确切版本代码以检查此方法。

Answer 1

希望这会有所帮助

/**
 * 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.
 */
private boolean checkPlayServices() {
    int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
    if (resultCode != ConnectionResult.SUCCESS) {
        if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
            GooglePlayServicesUtil.getErrorDialog(resultCode, this,
                    PLAY_SERVICES_RESOLUTION_REQUEST).show();
        } else {

        }
        return false;
    }
    return true;
}

Answer 2

基于此 google Play Services 的版本代码只是从其版本代码创建的 7 位数字，因此版本 7.5 有 7500000 版本代码。