Question

Hello I started trying to develop Android applications today, but I have a problem:

I decided to try out making a Web View using this tutorial – http://developer.android.com/resources/tutorials/views/hello-webview.html

But when I put the code in for the OnCreate() method I get an “id connot be resolved or is not a field” error. Here is my code:

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<WebView  xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/webview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
/>

HelloWebView.java:

package com.example.hellowebview;

import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;

public class HelloWebView extends Activity {
    WebView mWebView;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mWebView = (WebView) findViewById(R.id.webview);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.loadUrl("http://www.google.com");
    }
}

I have tried cleaning, CTRL+SHIFT+O, and just completely restarting the project. There error is in the statement:
mWebView = (WebView) findViewById(R.id.webview);
and Eclipse just says “id cannot be resolved or is not a field”

Also, I installed everything today using the guide on developer.android.com and followed all steps correctly. I have made Java programs on this computer before so I don’t think there is a problem related to the JDK/JRE.

Answer 1

I managed to fix the problem by simply restarting my computer. I guess in order for all the development tools to work properly a computer restart is necessary? I can’t believe I didn’t think about doing this before though. Thanks for those who tried to help.