该方法findViewById（INT）是未定义的类型获取数据片段的加速度计传感器 [英] The method findViewById(int) is undefined for the type Get Data Fragment for Accelerometer Sensor

问题描述

我做我的项目在android平台acceleometer传感器获取数据。我有在3最后一行codeS错误codeS。正是误差是findViewById没有为获取数据片段。所以，我怎么能在片段使用findviewbyId获取数据加速计传感器非常感谢的答案：？）

 进口android.app.Activity;
进口android.app.Fragment;
进口android.content.Context;
进口android.hardware.Sensor;
进口android.hardware.SensorManager;
进口android.os.Bundle;
进口android.view.LayoutInflater;
进口android.view.TextureView;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.TextView;
进口android.hardware.Sensor;
进口android.hardware.SensorEvent;
进口android.hardware.SensorManager;
进口android.hardware.SensorEventListener;
公共类GetDataFragment扩展片段实现SensorEventListener {// definisi variabel，variabel
// Sensor重力感应;
私人活动父;
TextView的koordinatX;
TextView的koordinatY;
TextView的koordinatZ;@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，
        捆绑savedInstanceState）{
    // TODO自动生成方法存根
    返回inflater.inflate（R.layout.get_data，集装箱，FALSE）;
}私人的SensorManager的SensorManager;
私人传感器传感器;
// TextView的koordinatX;
    @覆盖
公共无效的onCreate（捆绑savedInstanceState）{
    // TODO自动生成方法存根
    super.onCreate（savedInstanceState）;     父= getActivity（）;
    的SensorManager =（的SensorManager）parent.getSystemService（Context.SENSOR_SERVICE）;
    传感器= sensorManager.getSensorList（Sensor.TYPE_ACCELEROMETER）获得（0）;
    koordinatX =（的TextView）findViewById（R.id.coordinatx）;
    koordinatY =（的TextView）findViewById（R.id.coordinaty）;
    koordinatZ =（的TextView）findViewById（R.id.coordinatz）;
}
 

解决方案

您必须抬高在 onCreateView你的查看（）：

  @覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，
        捆绑savedInstanceState）{
    查看rootView = inflater.inflate（R.layout.get_data，集装箱，FALSE）;
    koordinatX =（TextView中）rootView.findViewById（R.id.coordinatx）;
    koordinatY =（TextView中）rootView.findViewById（R.id.coordinaty）;
    koordinatZ =（TextView中）rootView.findViewById（R.id.coordinatz）;
    返回rootView;
}
 

希望这有助于。

I'm doing my project for getting data by acceleometer sensor in android platform. I'm having error codes in the 3 last line codes. Exactly the error is the findViewById is not for get data fragment. so, how I can use findviewbyId in Fragment for getting data accelerometer sensor?many thanks for the answer :)

import android.app.Activity;
import android.app.Fragment;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorManager;
import android.hardware.SensorEventListener;


public class GetDataFragment extends Fragment implements SensorEventListener {

//definisi variabel-variabel
//Sensor accelerometer;
private Activity parent;
TextView koordinatX;
TextView koordinatY;
TextView koordinatZ;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    return inflater.inflate(R.layout.get_data, container, false);
}

private SensorManager sensorManager;
private Sensor sensor;
//TextView koordinatX;


    @Override
public void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);

     parent = getActivity();


    sensorManager = (SensorManager) parent.getSystemService(Context.SENSOR_SERVICE);
    sensor = sensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER).get(0);


    koordinatX = (TextView)findViewById(R.id.coordinatx);
    koordinatY = (TextView)findViewById(R.id.coordinaty);
    koordinatZ = (TextView)findViewById(R.id.coordinatz);


}

解决方案

You must inflate your Views in onCreateView():

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.get_data, container, false);
    koordinatX = (TextView)rootView.findViewById(R.id.coordinatx);
    koordinatY = (TextView)rootView.findViewById(R.id.coordinaty);
    koordinatZ = (TextView)rootView.findViewById(R.id.coordinatz);
    return rootView;
}

Hope this helps.

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