// ex1, 获取gps信息的按钮的事件 private void getGpsinfoButtonClick(View v) { if (mLocationHelper == null) { mLocationHelper = LocationHelper.getInstance(); } int intRet = mLocationHelper.init(MainActivity.this, this); if (intRet == Constants.ERROR_CANT_GET_GPS_SERVICE) { Toast.makeText(this, "请打开GPS服务!", Toast.LENGTH_LONG).show(); } else if (intRet == Constants.ERROR_CANT_GET_GPS_INFO) { Log.e(TAG, "无法获得GPS数据信息!"); return; } }