Test

1.在Activity下

1.1获取版本名称

private String getVersionName() {
    String versionName = null;

    PackageManager packageManager = getPackageManager();
    try {
        PackageInfo packageInfo = packageManager.getPackageInfo(getPackageName(), 0);
        versionName = packageInfo.versionName;
    } catch (NameNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return versionName;
}

1.2获取版本号

private int getVersionCode() {
    int versionCode = -1;

    PackageManager packageManager = getPackageManager();
    try {
        PackageInfo packageInfo = packageManager.getPackageInfo(getPackageName(), 0);
        versionCode = packageInfo.versionCode;
    } catch (NameNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return versionCode;
}