Hi! Im having a problem with a tablelayout. Im trying to add rows
dinamically and display the content of these rows (there are not
content problems as T tested it and the app has all the data that it
needs).
This is the java code and the xml of the activity:
[code]import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class DisplayResult extends Activity{
/** Called when the activity is first created. */
@SuppressWarnings("unchecked")
public void onCreate(Bundle savedInstanceState) {
System.out.println("2ยบ actividad lanzada");
super.onCreate(savedInstanceState);
setContentView(R.layout.displayresults);
Bundle extras = getIntent().getExtras();
//this.setContentView(R.layout.main);
/* Find Tablelayout defined in main.xml */
TableLayout tl = (TableLayout)findViewById
(R.layout.displayresults);
ArrayList finalResults;
if(extras!=null){
finalResults = (ArrayList) (extras.getSerializable
(RemoteIR.RESULTS));
Iterator it = finalResults.iterator();
while(it.hasNext()) {
SearchResult result = ((SearchResult) it.next());
/* Create a new row to be added. */
TableRow tr = new TableRow(this);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
TextView title = new TextView(this);
title.setText(result.title.toString());
//System.out.println(title.getText());
TextView author = new TextView(this);
author.setText(result.author.toString());
TextView file = new TextView(this);
file.setText(result.file.toString());
TextView modDate = new TextView(this);
author.setText(result.modDate.toString());
TextView size = new TextView(this);
size.setText(result.size.toString());
title.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
author.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
file.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
modDate.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
size.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
tr.addView(title);
tr.addView(author);
tr.addView(file);
tr.addView(modDate);
tr.addView(size);
tl.addView(tr,new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
}
}
}[/code]
This is the xml:
[code]<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:id="@+id/DisplayResults"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TableRow>
<TextView
android:layout_column="1"
android:text="Title"
android:padding="3dip" />
<TextView
android:text="Author"
android:padding="3dip" />
<TextView
android:text="File"
android:padding="3dip" />
<TextView
android:text="ModDate"
android:padding="3dip" />
<TextView
android:text="Size"
android:padding="3dip" />
</TableRow>
</TableLayout>[/code]
And this is the error that is frustrating me :s
ERROR:
02-01 12:10:34.129: ERROR/AndroidRuntime(938): Uncaught handler:
thread main exiting due to uncaught exception
02-01 12:10:34.149: ERROR/AndroidRuntime(938): [b]
java.lang.RuntimeException: Unable to start activity ComponentInfo
{citic.android.remoteir/citic.android.remoteir.DisplayResult}:
java.lang.NullPointerException[/b]
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2496)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
2512)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.ActivityThread.access$2200(ActivityThread.java:119)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.os.Handler.dispatchMessage(Handler.java:99)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.os.Looper.loop(Looper.java:123)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.ActivityThread.main(ActivityThread.java:4363)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
java.lang.reflect.Method.invokeNative(Native Method)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
java.lang.reflect.Method.invoke(Method.java:521)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:860)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
dalvik.system.NativeStart.main(Native Method)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): Caused by:
java.lang.NullPointerException
[b]02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
citic.android.remoteir.DisplayResult.onCreate(DisplayResult.java:93)[/
b]
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1047)
02-01 12:10:34.149: ERROR/AndroidRuntime(938): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2459)
Thank you! (I hope that someone helps me)
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