Question

I tried the following code for table layout in android without using xml file. But i didn’t get my screen on android emulator but getting the errror as “the application has stopped upexpectedly.Please try again.”

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ViewGroup.LayoutParams;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

public class Tablelayout extends Activity{
public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);

    LayoutParams params=new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);

    TextView tv=new TextView(this);
    tv.setLayoutParams(params);
    tv.setTextColor(Color.RED);

    TableRow tr=new TableRow(this);
    tr.addView(tv);

    TableLayout tl=new TableLayout(this);
    TableLayout.LayoutParams layoutparams=new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
    tl.addView(tr);

    this.addContentView(tl, layoutparams);
}

}

Answer 1

I’m not getting a force close when I run this code, but you are missing something.

I tried adding the following, but did not see any text:

tv.setText("Hello world!");

The problem is that when you call to tr.addView, you aren’t setting any layout parameters on the new row. If you change the line to the following, the text appears:

tr.addView(tv, new TableRow.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

Edit: Here’s a thought on the force close, is Tablelayout correctly defined in your AndroidManifest.xml? You should have something like this.

<application android:label="@string/app_name">
    <activity android:name=".Tablelayout" android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>