Как передать параметр в RSS парсер
06.10.2013, 17:37. Показов 1442. Ответов 5
Здравствуйте уважаемые!
В своем Android приложении использую RSS парсер по описанию на сайте anddev.ru.
RSS ленты просматриваю на сайте http://www.top68.ru, где они представлены в виде ссылок
Политика http://www.top68.ru/rss-news-policy
Экономика http://www.top68.ru/rss-news-economy
Общество http://www.top68.ru/rss-news-society
Проишествия http://www.top68.ru/rss-news-incidents
Спорт http://www.top68.ru/rss-news-sports
Культура http://www.top68.ru/rss-news-culture
Здоровье http://www.top68.ru/rss-news-health
Закон http://www.top68.ru/rss-news-thelaw
Персона http://www.top68.ru/rss-news-person
Официально http://www.top68.ru/rss-news-officially
Краеведение http://www.top68.ru/rss-news-studyoflocallore
соответственно имеется layout new.xml
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| <?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:orientation="vertical" android:background="#fffabf8f" android:layout_width="fill_parent" android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:background="@drawable/backv2"
android:paddingBottom="10.0dip"
android:paddingLeft="10.0dip"
android:paddingRight="10.0dip"
android:paddingTop="10.0dip" >
<LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">
<Button
android:id="@+id/bt1"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_1"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt2"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_2"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt3"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_3"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt4"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_4"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt5"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_5"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt6"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_6"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt7"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_7"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt8"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_8"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt9"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_9"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt10"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_10"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
<Button
android:id="@+id/bt11"
android:layout_width="fill_parent"
android:layout_height="43.0dip"
android:background="@drawable/button_state"
android:text="@string/news_11"
android:textColor="@color/black"
android:textSize="15sp"
android:textStyle="bold" />
</LinearLayout>
</ScrollView>
</LinearLayout> |
|
Основное Activity - NEW.java
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| package ru.sample;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;
public class NEWS extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE); //скрываем заголовок
//скрываем статусбар:
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
this.setContentView(R.layout.news);
Button localButton1 = (Button)findViewById(R.id.bt1);
Button localButton2 = (Button)findViewById(R.id.bt2);
Button localButton3 = (Button)findViewById(R.id.bt3);
Button localButton4 = (Button)findViewById(R.id.bt4);
Button localButton5 = (Button)findViewById(R.id.bt5);
Button localButton6 = (Button)findViewById(R.id.bt6);
Button localButton7 = (Button)findViewById(R.id.bt7);
Button localButton8 = (Button)findViewById(R.id.bt8);
Button localButton9 = (Button)findViewById(R.id.bt9);
Button localButton10 = (Button)findViewById(R.id.bt10);
Button localButton11 = (Button)findViewById(R.id.bt11);
localButton1.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), RSSActivity.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
/*
localButton2.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Econom.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton3.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Sociaty.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton4.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Accident.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton5.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Sport.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton6.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Culture.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton7.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Health.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton8.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Law.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton9.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Person.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton10.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Officially.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
localButton11.setOnClickListener(new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
try
{
Intent localIntent = new Intent(paramAnonymousView.getContext(), ViewNews_Region.class);
NEWS.this.startActivity(localIntent);
return;
}
catch (Exception localException)
{
while (true)
Toast.makeText(paramAnonymousView.getContext(), localException.getMessage(), 1).show();
}
}
});
*/
}
} |
|
Работает только первая кнопка, остальные закомментированы.
Остальные Activity
RSSActivity.java
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| package ru.sample;
import java.util.ArrayList;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
public class RSSActivity extends ListActivity {
private ArrayList<PostItem> messages;
private PostAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null) {
messages = savedInstanceState.getParcelableArrayList("messages");
adapter = new PostAdapter(RSSActivity.this, R.layout.post_entry,
messages);
setListAdapter(adapter);
} else
new GetParserResult().execute();
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Intent postActivity = new Intent(this, PostActivity.class);
Bundle store = new Bundle();
store.putString("title", messages.get(position).title);
store.putString("description", messages.get(position).description);
store.putString("date", messages.get(position).date);
store.putString("link", messages.get(position).link);
postActivity.putExtras(store);
startActivity(postActivity);
}
protected void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putParcelableArrayList("messages", messages);
}
private class GetParserResult extends
AsyncTask<Context, Integer, ArrayList<PostItem>> {
private ProgressDialog loadingDialog;
private NewParser parser;
protected void onPreExecute() {
parser = new NewParser();
loadingDialog = ProgressDialog.show(RSSActivity.this, "",
"Загружается лента новостей\nПожалуйста, подождите...", true);
}
@Override
protected ArrayList<PostItem> doInBackground(Context... arg0) {
return parser.parse();
}
protected void onPostExecute(ArrayList<PostItem> result) {
if (result == null) {
AlertDialog.Builder builder = new AlertDialog.Builder(
RSSActivity.this);
builder.setMessage("Ошибка загрузки ленты новостей с www.top68.ru")
.setCancelable(false)
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
dialog.cancel();
loadingDialog.dismiss();
}
});
AlertDialog alert = builder.create();
alert.show();
} else {
messages = result;
loadingDialog.dismiss();
adapter = new PostAdapter(RSSActivity.this,
R.layout.post_entry, messages);
setListAdapter(adapter);
}
}
}
} |
|
NewParser.java
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| package ru.sample;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import android.sax.Element;
import android.sax.EndElementListener;
import android.sax.EndTextElementListener;
import android.sax.RootElement;
import android.util.Xml;
public class NewParser {
protected InputStream getInputStream() {
URL feedUrl = null;
try {
feedUrl = new URL("http://www.top68.ru/rss-news-policy");
} catch (MalformedURLException e1) {
feedUrl = null;
}
try {
return feedUrl.openConnection().getInputStream();
} catch (IOException e) {
return null;
}
}
public ArrayList<PostItem> parse() {
final PostItem currentPost = new PostItem();
final ArrayList<PostItem> messages = new ArrayList<PostItem>();
RootElement root = new RootElement("rss");
Element channel = root.getChild("channel");
Element item = channel.getChild("item");
item.setEndElementListener(new EndElementListener() {
public void end() {
messages.add(currentPost.copy());
}
});
item.getChild("title").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentPost.title = body;
}
});
item.getChild("link").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentPost.link = body;
}
});
item.getChild("description").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentPost.description = body;
}
});
item.getChild("pubDate").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
currentPost.setDate(body);
}
});
try {
Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8,
root.getContentHandler());
} catch (Exception e) {
return null;
}
return messages;
}
} |
|
PostActivity.java
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| package ru.sample;
import android.app.Activity;
import android.os.Bundle;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.widget.TextView;
public class PostActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.post);
TextView title = (TextView) findViewById(R.id.title);
TextView description = (TextView) findViewById(R.id.description);
TextView date = (TextView) findViewById(R.id.date);
Bundle store = getIntent().getExtras();
title.setText(store.getString("title").replace("[...]", ""));
String tDescription = store.getString("description").replace("[...]", "") +
"<br><a href='"+ store.getString("link") +"'>" + getString(R.string.read_more_text) + "</a>";
description.setMovementMethod(LinkMovementMethod.getInstance());
description.setText(Html.fromHtml(tDescription));
date.setText(store.getString("date"));
}
} |
|
PostAdapter.java
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| package ru.sample;
import java.util.ArrayList;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class PostAdapter extends ArrayAdapter<PostItem> {
public ArrayList<PostItem> messages;
public LayoutInflater inflater;
public PostAdapter(Activity context, int resource,
ArrayList<PostItem> objects) {
super(context, resource, objects);
messages = objects;
inflater = LayoutInflater.from(context);
}
static class ViewHolder {
public TextView titleView;
public TextView pubDateView;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.post_entry, null, true);
holder = new ViewHolder();
holder.titleView = (TextView) convertView
.findViewById(R.id.post_title);
holder.pubDateView = (TextView) convertView
.findViewById(R.id.post_pubDate);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.titleView.setText(messages.get(position).title);
holder.pubDateView.setText((CharSequence) messages.get(position).date);
return convertView;
}
} |
|
PostItem.java
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| package ru.sample;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Locale;
import android.os.Parcel;
import android.os.Parcelable;
public class PostItem implements Parcelable {
static SimpleDateFormat FORMATTER = new SimpleDateFormat(
"E, dd MMM yyyy HH:mm:ss Z", Locale.US);
static SimpleDateFormat OUT_FORMATTER = new SimpleDateFormat(
"dd MMM yyyy HH:mm");
public String title;
public String link;
public String description;
public String date;
public PostItem() {
title = "";
link = "";
description = "";
date = "";
}
public void setDate(String date) {
try {
this.date = (String) OUT_FORMATTER.format(FORMATTER.parse(date
.trim()));
} catch (ParseException e) {
this.date = null;
}
}
public PostItem copy() {
PostItem copy = new PostItem();
copy.title = title;
copy.link = link;
copy.description = description;
copy.date = date;
return copy;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeString(title);
out.writeString(link);
out.writeString(description);
out.writeString(date);
}
public static final Parcelable.Creator<PostItem> CREATOR = new Parcelable.Creator<PostItem>() {
public PostItem createFromParcel(Parcel source) {
return new PostItem(source);
}
public PostItem[] newArray(int size) {
return new PostItem[size];
}
};
private PostItem(Parcel source) {
title = source.readString();
date = source.readString();
link = source.readString();
description = source.readString();
}
} |
|
Первая кнопка - в NewParser
feedUrl = new URL("http://www.top68.ru/rss-news-policy");
ВОПРОС!!!
Как сделать так, чтобы при нажатии на вторую кнопку - в NewParser
feedUrl = new URL("http://www.top68.ru/rss-news-economy ");
при нажатии на третью кнопку - в NewParser
feedUrl = new URL("http://www.top68.ru/rss-news-society ");
и т.д.
Заранее благодарен
ALSHA
Добавлено через 12 часов 5 минут
Да....
Ну хоть кто-нибудь, ответьте.
Принимаются любые соображения.
ALSHA
0
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