您好我想将查看寻呼机添加到现有代码中。添加的最佳方式是什么？这是我的RssTabActivitty.java和RssChannelActivity.java。
RssTabActivity是我初始化标签的主要活动。 RssChannelActivity正在加载rss feed。
这里是完整的源代码 https://github.com/itcuties/Android-Multicategory-RSS-Reader
public class RssTabsActivity extends TabActivity {@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // First, set the content view setContentView(R.layout.activity_rss_tabs); // Then get the TabHost TabHost tabHost = getTabHost(); /* ***************** * Art tab */ Intent artIntent = new Intent().setClass(this, RssChannelActivity.class); // Set Art category RSS URL artIntent.putExtra("rss-url", "http://feeds.reuters.com/news/artsculture?format=xml"); // The name of the art tab taken from the String resources String artTabName = getResources().getString(R.string.tab_art); TabSpec artTabSpec = tabHost.newTabSpec(artTabName) .setIndicator(artTabName, getResources().getDrawable(R.drawable.rss_tab_art)) .setContent(artIntent); // Add art tab to the TabHost tabHost.addTab(artTabSpec); /* ***************** * Tech tab */ Intent techIntent = new Intent().setClass(this, RssChannelActivity.class); // Set Tech category RSS URL techIntent.putExtra("rss-url", "http://feeds.reuters.com/reuters/technologyNews?format=xml"); // Tech tab name taken from the string resources String techTabName = getResources().getString(R.string.tab_tech); TabSpec techTabSpec = tabHost.newTabSpec(techTabName) .setIndicator(techTabName, getResources().getDrawable(R.drawable.rss_tab_tech)) .setContent(techIntent); // Add tech tab to the TabHost tabHost.addTab(techTabSpec); /* ***************** * Sports tab */ Intent sportsIntent = new Intent().setClass(this, RssChannelActivity.class); // Set Sports category RSS URL sportsIntent.putExtra("rss-url", "http://feeds.reuters.com/reuters/sportsNews?format=xml"); // Sports tab name - string resources String sportsTabName = getResources().getString(R.string.tab_sports); TabSpec sportsTabSpec = tabHost.newTabSpec(sportsTabName) .setIndicator(sportsTabName, getResources().getDrawable(R.drawable.rss_tab_sports)) .setContent(sportsIntent); // Add sports tab to the TabHost tabHost.addTab(sportsTabSpec); // Set current tab to Technology tabHost.setCurrentTab(1); }
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // First, set the content view setContentView(R.layout.activity_rss_tabs); // Then get the TabHost TabHost tabHost = getTabHost(); /* ***************** * Art tab */ Intent artIntent = new Intent().setClass(this, RssChannelActivity.class); // Set Art category RSS URL artIntent.putExtra("rss-url", "http://feeds.reuters.com/news/artsculture?format=xml"); // The name of the art tab taken from the String resources String artTabName = getResources().getString(R.string.tab_art); TabSpec artTabSpec = tabHost.newTabSpec(artTabName) .setIndicator(artTabName, getResources().getDrawable(R.drawable.rss_tab_art)) .setContent(artIntent); // Add art tab to the TabHost tabHost.addTab(artTabSpec); /* ***************** * Tech tab */ Intent techIntent = new Intent().setClass(this, RssChannelActivity.class); // Set Tech category RSS URL techIntent.putExtra("rss-url", "http://feeds.reuters.com/reuters/technologyNews?format=xml"); // Tech tab name taken from the string resources String techTabName = getResources().getString(R.string.tab_tech); TabSpec techTabSpec = tabHost.newTabSpec(techTabName) .setIndicator(techTabName, getResources().getDrawable(R.drawable.rss_tab_tech)) .setContent(techIntent); // Add tech tab to the TabHost tabHost.addTab(techTabSpec); /* ***************** * Sports tab */ Intent sportsIntent = new Intent().setClass(this, RssChannelActivity.class); // Set Sports category RSS URL sportsIntent.putExtra("rss-url", "http://feeds.reuters.com/reuters/sportsNews?format=xml"); // Sports tab name - string resources String sportsTabName = getResources().getString(R.string.tab_sports); TabSpec sportsTabSpec = tabHost.newTabSpec(sportsTabName) .setIndicator(sportsTabName, getResources().getDrawable(R.drawable.rss_tab_sports)) .setContent(sportsIntent); // Add sports tab to the TabHost tabHost.addTab(sportsTabSpec); // Set current tab to Technology tabHost.setCurrentTab(1); }
}public class RssChannelActivity extends Activity {
// A reference to this activity
private RssChannelActivity local;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_rss_channel);
// Get the RSS URL that was set in the RssTabActivity
String rssUrl = (String)getIntent().getExtras().get("rss-url");
// Set reference to this activity
local = this;
GetRSSDataTask task = new GetRSSDataTask();
// Start process RSS task
task.execute(rssUrl);
}
/**
* This class downloads and parses RSS Channel feed.
*
* @author itcuties
*
*/
private class GetRSSDataTask extends AsyncTask<String, Void, List<RssItem> > {
@Override
protected List<RssItem> doInBackground(String... urls) {
try {
// Create RSS reader
RssReader rssReader = new RssReader(urls[0]);
// Parse RSS, get items
return rssReader.getItems();
} catch (Exception e) {
Log.e("RssChannelActivity", e.getMessage());
}
return null;
}
@Override
protected void onPostExecute(List<RssItem> result) {
// Get a ListView from the RSS Channel view
ListView itcItems = (ListView) findViewById(R.id.rssChannelListView);
// Create a list adapter
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(local,android.R.layout.simple_list_item_1, result);
// Set list adapter for the ListView
itcItems.setAdapter(adapter);
// Set list view item click listener
itcItems.setOnItemClickListener(new ListListener(result, local));
}
}
// A reference to this activity
private RssChannelActivity local;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_rss_channel);
// Get the RSS URL that was set in the RssTabActivity
String rssUrl = (String)getIntent().getExtras().get("rss-url");
// Set reference to this activity
local = this;
GetRSSDataTask task = new GetRSSDataTask();
// Start process RSS task
task.execute(rssUrl);
}
/**
* This class downloads and parses RSS Channel feed.
*
* @author itcuties
*
*/
private class GetRSSDataTask extends AsyncTask<String, Void, List<RssItem> > {
@Override
protected List<RssItem> doInBackground(String... urls) {
try {
// Create RSS reader
RssReader rssReader = new RssReader(urls[0]);
// Parse RSS, get items
return rssReader.getItems();
} catch (Exception e) {
Log.e("RssChannelActivity", e.getMessage());
}
return null;
}
@Override
protected void onPostExecute(List<RssItem> result) {
// Get a ListView from the RSS Channel view
ListView itcItems = (ListView) findViewById(R.id.rssChannelListView);
// Create a list adapter
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(local,android.R.layout.simple_list_item_1, result);
// Set list adapter for the ListView
itcItems.setAdapter(adapter);
// Set list view item click listener
itcItems.setOnItemClickListener(new ListListener(result, local));
}
}
答案 0 :(得分：0)
向您的活动添加视图寻呼机：
将ViewPager资源添加到您的活动资源：
<android.support.v4.view.PagerTitleStrip
android:id="@+id/pager_title_strip"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#33b5e5"
android:paddingBottom="4dp"
android:paddingTop="4dp"
android:textColor="#fff" />
创建寻呼机的片段资源：
<TextView
android:id="@+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
创建片段的片段类：
public static class DummySectionFragment extends Fragment { / ** * fragment参数表示此节的节号 *片段。 * / public static final String ARG_SECTION_NUMBER =“section_number”;
public DummySectionFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_dummy,
container, false);
TextView dummyTextView = (TextView) rootView
.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
return rootView;
}
}
创建寻呼机的适配器类：
公共类SectionsPagerAdapter扩展了FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
return fragment;
}
@Override
public int getCount() {
// Show 3 total pages.
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
在您的活动中使用寻呼机（您的活动必须扩展FragmentActivity）：
SectionsPagerAdapter mSectionsPagerAdapter; ViewPager mViewPager; mSectionsPagerAdapter = new SectionsPagerAdapter（getSupportFragmentManager（））; //使用sections适配器设置ViewPager。 mViewPager =（ViewPager）findViewById（R.id.pager）; mViewPager.setAdapter（mSectionsPagerAdapter）;