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POAndroid Development: "Cannot be resolved"
 

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  1. POAndroid Development: "Cannot be resolved"
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    <p>Hoping to get into android app development so I'm doing some basic tutorials just now.</p> <p>Just trying to get comfortable with the basics at the moment, one of which is using the Typeface class.</p> <pre><code>package org.me.myandroidstuff; import android.os.Bundle; import android.app.Activity; import android.graphics.Typeface; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; public class HelloWorldActivity extends Activity implements OnClickListener { private View mainView; private TextView tbox1; private Button exitButton; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mainView=(View)findViewById(R.id.mainView); mainView.setBackgroundColor(getResources().getColor(R.color.silver)); tbox1 = (TextView)findViewById(R.id.textBox1); tbox1.setTypeface(Typeface.MONOSPACE); } } </code></pre> <p>The line</p> <pre><code>tbox1 = (TextView)findViewById(R.id.textBox1); </code></pre> <p>Has a red cross beside it (I'm using eclipse) with the error</p> <pre><code>tbox1 cannot be resolved </code></pre> <p>Its been a while since i have used java, but as i aware the following code</p> <ol> <li>create a new TextView object called tbox1</li> <li>Assigns the tbox1 object the id specified in the xml for the TextView tag in an external main.xml</li> <li>Then tbox1 executes the setTypeFace() method on itself?</li> </ol> <p>Obviously I'm going wrong somewhere, any ideas? Something really simple no doubt...</p>
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    1. COdid you declare a textview with id textBox1 inside your layout?
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    2. COYes, <TextView android:textColor="#FF0000" android:id="@+id/textBox1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" android:textSize="20sp" android:text="@string/salutation" />
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