If you use Eclipse, do Project | Clean from the main menu. If you use
Ant, run ant clean install. See if one of these clears up your
problem.
On Thu, Feb 24, 2011 at 10:28 AM, Premier a.grum...@gmail.com wrote:
Hello,
i've created a new android project target 8, with default activity
I've assigned an id to textview with text Hello world.
?xml version=1.0 encoding=utf-8?
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:orientation=vertical
android:layout_width=fill_parent
android:layout_height=fill_parent
TextView
android:id=@+id/tvProva
android:layout_width=fill_parent
android:layout_height=wrap_content
android:text=@string/hello
/
/LinearLayout
This is the unique activity
package it.prova;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class EmptyActivity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView tv = (TextView) findViewById(R.id.tvProva);
tv.setText(Prova );
}
}
And this is logcat
02-24 16:09:25.374: ERROR/AndroidRuntime(537): Caused by:
java.lang.NullPointerException
02-24 16:09:25.374: ERROR/AndroidRuntime(537): at
it.prova.EmptyActivity.onCreate(EmptyActivity.java:22)
02-24 16:09:25.374: ERROR/AndroidRuntime(537): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1047)
02-24 16:09:25.374: ERROR/AndroidRuntime(537): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2627)
02-24 16:09:25.374: ERROR/AndroidRuntime(537): ... 11 more
I'm using sdk r11 and adt v10.
I think there is a problem with resources.
Any idea?
Thanks.
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