I am newbie to android. I am developing an android app for an University. For this I am creating a news page. I am trying to parse the xml file onclick of a listitem. But getting error. The main error occurs in the switch statement. Here are my files. Please help me in getting this.
MainActivity.java
package com.example.listviewdemo;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends ListActivity {
String[] presidents ={
"ABC1",
"ABC2",
"ABC3"
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_main);
setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, presidents));
}
@Override
public void onListItemClick(
ListView parent, View v, int position, long id)
{
switch (item.getItemId()) {
case R.id.news1:
Intent a = new Intent(getApplicationContext(), News1.class);
startActivity(a);
return true;
case R.id.news2:
Intent b= new Intent(getApplicationContext(), News2.class);
startActivity(a);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
activity_news1.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.listviewdemo.News1" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:src="@drawable/img1" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/imageView1"
android:layout_alignLeft="@+id/imageView1"
android:layout_marginBottom="90dp"
android:text="bla bla bla" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/imageView1"
android:layout_alignTop="@+id/textView1"
android:layout_marginTop="14dp"
android:text="bla bla bla"/>
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/imageView1"
android:layout_below="@+id/textView2"
android:layout_marginTop="14dp"
android:text="bla bla bla" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/imageView1"
android:layout_alignLeft="@+id/imageView1"
android:text="bla bla bla" />
</RelativeLayout>
activity_news2.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.listviewdemo.News1" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:src="@drawable/img1" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/imageView1"
android:layout_alignLeft="@+id/imageView1"
android:layout_marginBottom="90dp"
android:text="bla bla bla" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/imageView1"
android:layout_alignTop="@+id/textView1"
android:layout_marginTop="14dp"
android:text="bla bla bla"/>
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/imageView1"
android:layout_below="@+id/textView2"
android:layout_marginTop="14dp"
android:text="bla bla bla" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/imageView1"
android:layout_alignLeft="@+id/imageView1"
android:text="bla bla bla" />
</RelativeLayout>
Here is my Logcat:
Description Resource Path Location Type item cannot be resolved MainActivity.java /ListViewDemo/src/com/example/listviewdemo line 34 Java Problem
Description Resource Path Location Type item cannot be resolved to a variable MainActivity.java /ListViewDemo/src/com/example/listviewdemo line 47 Java Problem
Description Resource Path Location Type news1 cannot be resolved or is not a field MainActivity.java /ListViewDemo/src/com/example/listviewdemo line 36 Java Problem
Description Resource Path Location Type news2 cannot be resolved or is not a field MainActivity.java /ListViewDemo/src/com/example/listviewdemo line 41 Java Problem
Description Resource Path Location Type Void methods cannot return a value MainActivity.java /ListViewDemo/src/com/example/listviewdemo line 39 Java Problem
Description Resource Path Location Type Void methods cannot return a value MainActivity.java /ListViewDemo/src/com/example/listviewdemo line 44 Java Problem
