AppUtil.java 文件源码

/**
 * get the current version of current application
 */
public static String getImei( Context context) {
    if (TextUtils.isEmpty(imei)) {
        if(context.checkCallingOrSelfPermission( Manifest.permission.READ_PHONE_STATE)== PackageManager.PERMISSION_GRANTED){
            TelephonyManager tm = (TelephonyManager) context.getApplicationContext()
                    .getSystemService(Context.TELEPHONY_SERVICE);
            imei = tm.getDeviceId();
        }
    }
    return imei;
}