Android: Layout.addView() doesn't work
16,869
Solution 1
LinearLayout layout = (LinearLayout) findViewById(R.id.mainLayout);
In your xml file main xml layout android:id="@+id/mainLayout"
Solution 2
You should set id for your root LinearLayout in main.xml like
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/mainLayout">
and then reference it as
LinearLayout layout = (LinearLayout) findViewById(R.id.mainLayout);
instead of findViewById(R.layout.main);
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Incinerator
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Updated on June 04, 2022Comments
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Incinerator almost 2 years
When I try to run the following code I get an error. The emulator gives me this error message and then the app force closes: The application has stopped unexpectedly. What is wrong?
import edu.chl.dat255.bluebanana.R; import android.app.Activity; import android.os.Bundle; import android.widget.LinearLayout; import android.widget.TextView; public class ProMan extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); LinearLayout layout = (LinearLayout) findViewById(R.layout.main); TextView t = new TextView(getApplicationContext()); t.setText("Hello world"); layout.addView(t); } }