我有一个 RSS 应用程序，我正在使用 viewpager 从一篇文章到另一篇文章。我的问题是，如果我从列表中打开一篇文章，我总是可以播放其中的视频。如果我在文章之间移动（滑动），我无法播放视频。
所以，我想我刷卡时必须刷新片段？这是解决方案吗？
这是我的片段适配器：
public class DescAdapter extends FragmentStatePagerAdapter {
public DescAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
entry = new HotOrNot_all(DetailActivity.this);
entry.open();
long count = entry.fetchPlacesCount();
entry.close();
return (int) count;
}
@Override
public Fragment getItem(int position) {
DetailFragment frag = new DetailFragment();
Bundle bundle = new Bundle();
bundle.putInt("pos", position);
frag.setArguments(bundle);
return frag;
}
}
DetailActivity.java
public class DetailActivity extends SherlockFragmentActivity {
int pos;
private DescAdapter adapter;
private ViewPager pager;
private ShareActionProvider mShareActionProvider;
private HotOrNot_all entry;
String TITLE;
String CAT;
String DESC;
String ROWID;
String IMAGE;
String DATE;
String LINK;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.detail);
Log.i(this.getComponentName().toString(), "Started");
pos = getIntent().getExtras().getInt("pos");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
// Initialize the views
adapter = new DescAdapter(getSupportFragmentManager());
adapter.notifyDataSetChanged();
pager = (ViewPager) findViewById(R.id.pager);
// Set Adapter to pager:
pager.setAdapter(adapter);
pager.setCurrentItem(pos);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
this.
finish();
overridePendingTransition(R.anim.animation_slide_in_left,
R.anim.animation_slide_out_right);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
finish();
overridePendingTransition(R.anim.animation_slide_in_left,
R.anim.animation_slide_out_right);
return super.onKeyDown(keyCode, event);
}
public class DescAdapter extends FragmentStatePagerAdapter {
public DescAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
entry = new HotOrNot_all(DetailActivity.this);
entry.open();
long count = entry.fetchPlacesCount();
entry.close();
return (int) count;
}
@Override
public Fragment getItem(int position) {
DetailFragment frag = new DetailFragment();
Bundle bundle = new Bundle();
// bundle.putSerializable("list",TITLE_LIST);
bundle.putInt("pos", position);
frag.setArguments(bundle);
return frag;
}
}
}
DetailFragment.java
public class DetailFragment extends SherlockFragment {
private int fPos;
private ShareActionProvider mShareActionProvider;
String TITLE;
String CAT;
String DESC;
String ROWID;
String IMAGE;
String DATE;
String LINK;
private HotOrNot_all entry;
static Typeface roboto_bold;
static Typeface roboto_regular;
@SuppressWarnings("unchecked")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Bundle bundle = getActivity().getIntent().getExtras();
roboto_bold = Typeface.createFromAsset(getActivity().getAssets(),
"fonts/Roboto-Medium.ttf");
roboto_regular = Typeface.createFromAsset(getActivity().getAssets(),
"fonts/Roboto-Light.ttf");
Log.i(this.getActivity().toString(), "Started");
fPos = getArguments().getInt("pos");
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.detail_fragment, container,
false);
setHasOptionsMenu(true);
entry = new HotOrNot_all(getActivity());
entry.open();
Cursor c = entry.getAllData();
if (c.moveToPosition(fPos)) {
TITLE = c.getString(c.getColumnIndexOrThrow(DBHelper.TITLE));
CAT = c.getString(c.getColumnIndexOrThrow(DBHelper.CATEGORY));
DESC = c.getString(c.getColumnIndexOrThrow(DBHelper.DESCRIPTION));
ROWID = c.getString(c.getColumnIndexOrThrow(DBHelper.ROWID));
IMAGE = c.getString(c.getColumnIndexOrThrow(DBHelper.IMAGE));
DATE = c.getString(c.getColumnIndexOrThrow(DBHelper.DATE));
LINK = c.getString(c.getColumnIndexOrThrow(DBHelper.LINK));
}
c.close();
entry.close();
// Initializr views
final TextView title = (TextView) view.findViewById(R.id.title);
title.setTypeface(roboto_bold);
final TextView date = (TextView) view.findViewById(R.id.date);
date.setTypeface(roboto_regular);
final TextView categg = (TextView) view.findViewById(R.id.categg);
categg.setTypeface(roboto_regular);
final WebView desc = (WebView) view.findViewById(R.id.desc);
desc.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
// super.onPageFinished(view, url);
desc.loadUrl("javascript:(function() { "
+ "document.getElementsByTagName('img')[0].style.display = 'none'; "
+ "})()");
}
});
// Enable the vertical fading edge (by default it is disabled)
ScrollView sv = (ScrollView) view.findViewById(R.id.sv);
sv.setVerticalFadingEdgeEnabled(true);
// Set webview properties
WebSettings ws = desc.getSettings();
ws.setSupportZoom(true);
// ws.setDisplayZoomControls(true);
ws.setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);
ws.setLightTouchEnabled(false);
ws.setPluginState(PluginState.ON);
ws.setJavaScriptEnabled(true);
ws.setUserAgentString("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/534.36 (KHTML, like Gecko) Chrome/13.0.766.0 Safari/534.36");
// ws.setLoadsImagesAutomatically(false);
// desc.requestFocus(View.FOCUS_DOWN);
desc.loadDataWithBaseURL("", DESC,
"text/html", "UTF-8", null);
final WebView web = (WebView) view.findViewById(R.id.my_image);
web.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return true;
}
});
// read string from reader
web.getSettings().setJavaScriptEnabled(true);
web.getSettings().setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);
web.getSettings().setLightTouchEnabled(false);
web.getSettings().setPluginState(PluginState.ON);
web.getSettings()
.setUserAgentString(
"Mozilla/5.0 (Linux; U; Android 2.0; en-us; Droid Build/ESD20) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Mobile Safari/530.17");
web.setScrollbarFadingEnabled(true);
web.loadDataWithBaseURL(IMAGE,
"<img src=\" \" width=\"100%\" border=\"2\"/>", "text/html",
"utf-8", null);
// ----------------------------------------------------###############################$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
// Set the views
title.setText(TITLE);
final Button linkBtn = (Button) view.findViewById(R.id.linkBtn);
linkBtn.setBackgroundResource(R.color.white);
linkBtn.setTypeface(roboto_regular);
linkBtn.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
web.setVisibility(View.GONE);
title.setVisibility(View.GONE);
date.setVisibility(View.GONE);
categg.setVisibility(View.GONE);
linkBtn.setVisibility(View.GONE);
desc.getSettings().setJavaScriptEnabled(true);
final ProgressDialog progressDialog = new ProgressDialog(view
.getContext());
progressDialog.setMessage("Loading website ...");
progressDialog.setCancelable(true);
progressDialog.show();
desc.loadUrl(LINK);
desc.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view,
String url) {
view.getSettings().setJavaScriptEnabled(true);
view.loadUrl(url);
view.scrollTo(0, 0);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progressDialog.dismiss();
}
});
// linkBtn.setVisibility(View.GONE);
}
});
return view;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.favorite_option2:
// app icon in action bar clicked; finish activity to go home
// grafei stin vasi dedomenwn
// ------------------------
HotOrNot_favorite entry = new HotOrNot_favorite(this.getActivity());
entry.open();
if (entry.Exists(LINK) == true) {
item.setIcon(R.drawable.favorite_empty_gr);
entry.deleteItemByLink(LINK);
} else {
item.setIcon(R.drawable.favorite_full_gr);
entry.createEntryNea(TITLE, DESC, LINK, DATE, IMAGE, CAT);
// entry.update(msg.getTitle(),msg.getagonistiki(),msg.getskor(),msg.getgipedo(),msg.getDate());
// ----------------------------------------
}
entry.close();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.activity_desc, menu);
MenuItem switchButton = menu.findItem(R.id.favorite_option2);
HotOrNot_favorite entry = new HotOrNot_favorite(this.getActivity());
entry.open();
if (entry.Exists(LINK) == true) {
switchButton.setIcon(R.drawable.favorite_full_gr);
}
entry.close();
// Locate MenuItem with ShareActionProvider
MenuItem shareItem = menu.findItem(R.id.share_option);
// Fetch and store ShareActionProvider
mShareActionProvider = (ShareActionProvider) shareItem
.getActionProvider();
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain"); // eixe text/plan
shareIntent.putExtra(Intent.EXTRA_SUBJECT, getText(R.string.app_name)
+ " Android App");
if ((LINK != null) && (TITLE != null)) {
String shareBody = Html.fromHtml(TITLE + "<br><br>")
+ LINK
+ Html.fromHtml("<br><br>Send from "
+ getText(R.string.app_name) + " Android App");
shareIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
// Set the share intent
mShareActionProvider.setShareIntent(shareIntent);
}
else {
String shareBody = LINK;
shareIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
// Set the share intent
mShareActionProvider.setShareIntent(shareIntent);
}
super.onCreateOptionsMenu(menu, inflater);
}
}