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我有一個活動顯示一個飼料項目，它有一個上下文菜單來完成操作，如共享，添加到您的收藏夾等我已經將項目從上下文菜單移動到選項菜單，所以它可以直接從操作欄執行操作。但是選項菜單沒有顯示在操作欄中（它之前顯示過）。我還沒有將任何操作添加到項目中，但它們應該顯示在選項菜單中。選項菜單（操作欄）不顯示
FeedItemActivity：
package com.mfavez.android.feedgoal;
someimports....
import com.mfavez.android.feedgoal.storage.SharedPreferencesHelper;
public class FeedItemActivity extends Activity {
private static final String LOG_TAG = "FeedItemActivity";
private static final int KILL_ACTIVITY_CODE = 1;
private DbFeedAdapter mDbFeedAdapter;
private long mItemId = -1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//only show bar for honeycomb and over
int currentAPIVersion = android.os.Build.VERSION.SDK_INT;
if (currentAPIVersion >= android.os.Build.VERSION_CODES.HONEYCOMB) {
ActionBar bar = getActionBar();
bar.setDisplayHomeAsUpEnabled(true);
bar.show();
}
//end of actionbardisplay
mDbFeedAdapter = new DbFeedAdapter(this);
mDbFeedAdapter.open();
TrackerAnalyticsHelper.createTracker(this);
mItemId = savedInstanceState != null ? savedInstanceState.getLong(DbSchema.ItemSchema._ID) : -1;
if (mItemId == -1) {
Bundle extras = getIntent().getExtras();
mItemId = extras != null ? extras.getLong(DbSchema.ItemSchema._ID) : -1;
}
Item item = mDbFeedAdapter.getItem(mItemId);
if (item.isFavorite())
setContentView(R.layout.item_favorite);
else
setContentView(R.layout.item_notfavorite);
/*
* To test ads in emulator, remove ads:loadAdOnCreate="true" in layout
if (SharedPreferencesHelper.useAdmob(this)) {
int resourceId = getResources().getIdentifier("adView", "id", this.getPackageName());
AdView adView = (AdView)this.findViewById(resourceId);
//AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest request = new AdRequest();
request.addTestDevice(AdRequest.TEST_EMULATOR);
adView.loadAd(request);
}
*/
AdRequest request = new AdRequest();
request.addTestDevice(AdRequest.TEST_EMULATOR);
TextView title = (TextView)findViewById(R.id.title);
title.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
TrackerAnalyticsHelper.trackEvent(FeedItemActivity.this,LOG_TAG,"Link_Title",mDbFeedAdapter.getItem(mItemId).getLink().toString(),1);
adjustLinkableTextColor (v);
startItemWebActivity();
}
});
TextView channel = (TextView)findViewById(R.id.channel);
channel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Feed feed = mDbFeedAdapter.getFeed(mDbFeedAdapter.getItemFeedId(mItemId));
String channelHomepage = feed.getHomePage().toString();
TrackerAnalyticsHelper.trackEvent(FeedItemActivity.this,LOG_TAG,"Link_Channel",channelHomepage,1);
adjustLinkableTextColor (v);
if (SharedPreferencesHelper.isOnline(FeedItemActivity.this)) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(channelHomepage));
startActivity(intent);
} else
showDialog(SharedPreferencesHelper.DIALOG_NO_CONNECTION);
}
});
Button read_online = (Button)findViewById(R.id.read);
read_online.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
TrackerAnalyticsHelper.trackEvent(FeedItemActivity.this,LOG_TAG,"Button_ReadOnline",mDbFeedAdapter.getItem(mItemId).getLink().toString(),1);
startItemWebActivity();
}
});
registerForContextMenu(findViewById(R.id.item));
}
private void startItemWebActivity() {
if (SharedPreferencesHelper.isOnline(FeedItemActivity.this)) {
Intent intent = new Intent(FeedItemActivity.this, FeedWebActivity.class);
intent.putExtra(DbSchema.ItemSchema._ID, mItemId);
startActivity(intent);
} else
showDialog(SharedPreferencesHelper.DIALOG_NO_CONNECTION);
}
private void adjustLinkableTextColor (View v) {
TextView textView = (TextView) v;
textView.setTextColor(R.color.color2);
}
private void displayItemView() {
if (mItemId != -1) {
Item item = mDbFeedAdapter.getItem(mItemId);
TextView titleView = (TextView) findViewById(R.id.title);
TextView channelView = (TextView) findViewById(R.id.channel);
TextView pubdateView = (TextView) findViewById(R.id.pubdate);
TextView contentView = (TextView) findViewById(R.id.content);
if (titleView != null)
titleView.setText(item.getTitle());
if (channelView != null) {
Feed feed = mDbFeedAdapter.getFeed(mDbFeedAdapter.getItemFeedId(mItemId));
if (feed != null)
channelView.setText(feed.getTitle());
}
if (pubdateView != null) {
//DateFormat df = new SimpleDateFormat(getResources().getText(R.string.pubdate_format_pattern);
//pubdateView.setText(df.format(item.getPubdate()));
CharSequence formattedPubdate = DateFormat.format(getResources().getText(R.string.pubdate_format_pattern), item.getPubdate());
pubdateView.setText(formattedPubdate);
}
if (contentView != null) {
String content_description = item.getContent();
if (content_description == null)
content_description = item.getDescription();
if (content_description != null)
//contentView.setText(content_description,TextView.BufferType.SPANNABLE);
contentView.setText(content_description);
}
// set item as read (case when item is displayed from next/previous contextual menu or buttons)
ContentValues values = new ContentValues();
values.put(DbSchema.ItemSchema.COLUMN_READ, DbSchema.ON);
mDbFeedAdapter.updateItem(mItemId, values, null);
TrackerAnalyticsHelper.trackPageView(this,"/offlineItemView");
}
}
@Override
protected void onStart() {
super.onStart();
TrackerAnalyticsHelper.startTracker(this);
}
@Override
protected void onResume() {
super.onResume();
displayItemView();
}
@Override
protected void onStop() {
super.onStop();
TrackerAnalyticsHelper.stopTracker(this);
}
@Override
protected void onDestroy() {
super.onDestroy();
mDbFeedAdapter.close();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putLong(DbSchema.ItemSchema._ID, mItemId);
}
//---------------------------------------------------------------
//Problems is around here I think!
//---------------------------------------------------------------
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getMenuInflater();
Item item = mDbFeedAdapter.getItem(mItemId);
if (SharedPreferencesHelper.isDynamicMode(this)) {
if (item != null) {
long feedId = mDbFeedAdapter.getItemFeedId(mItemId);
boolean isFirstItem = false;
boolean isLastItem = false;
if (mItemId == mDbFeedAdapter.getFirstItem(feedId).getId())
isFirstItem = true;
else if (mItemId == mDbFeedAdapter.getLastItem(feedId).getId())
isLastItem = true;
if (item.isFavorite()) {
if (isFirstItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_notfav_next, menu);
else if (isLastItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_notfav_prev, menu);
else
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_notfav_next_prev, menu);
} else {
if (isFirstItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_fav_next, menu);
else if (isLastItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_fav_prev, menu);
else
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_fav_next_prev, menu);
}
}
MenuItem channelsMenuItem = (MenuItem) menu.findItem(R.id.menu_opt_channels);
channelsMenuItem.setIntent(new Intent(this,FeedChannelsActivity.class));
} else {
if (item != null) {
long feedId = mDbFeedAdapter.getItemFeedId(mItemId);
boolean isFirstItem = false;
boolean isLastItem = false;
if (mItemId == mDbFeedAdapter.getFirstItem(feedId).getId())
isFirstItem = true;
else if (mItemId == mDbFeedAdapter.getLastItem(feedId).getId())
isLastItem = true;
if (item.isFavorite()) {
if (isFirstItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_notfav_next, menu);
else if (isLastItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_notfav_prev, menu);
else
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_notfav_next_prev, menu);
} else {
if (isFirstItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_fav_next, menu);
else if (isLastItem)
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_fav_prev, menu);
else
inflater.inflate(R.menu.ctx_menu_item_dyn_offline_fav_next_prev, menu);
}
}
// Channels menu item
if (mDbFeedAdapter.getFeeds().size() > 1) {
MenuItem channelsMenuItem = (MenuItem) menu.findItem(R.id.menu_opt_channels);
SubMenu subMenu = channelsMenuItem.getSubMenu();
List<Feed> feeds = mDbFeedAdapter.getFeeds();
Iterator<Feed> feedIterator = feeds.iterator();
Feed feed = null;
MenuItem channelSubMenuItem = null;
Intent intent = null;
int order = 0;
while (feedIterator.hasNext()) {
feed = feedIterator.next();
channelSubMenuItem = subMenu.add(SharedPreferencesHelper.CHANNEL_SUBMENU_GROUP, Menu.NONE, order, feed.getTitle());
if (feed.getId() == SharedPreferencesHelper.getPrefTabFeedId(this, mDbFeedAdapter.getFirstFeed().getId()))
channelSubMenuItem.setChecked(true);
intent = new Intent(this, FeedTabActivity.class);
intent.putExtra(DbSchema.FeedSchema._ID, feed.getId());
channelSubMenuItem.setIntent(intent);
order++;
}
subMenu.setGroupCheckable(SharedPreferencesHelper.CHANNEL_SUBMENU_GROUP, true, true);
} else {
menu.removeItem(R.id.menu_opt_channels);
}
}
// Home menu item
MenuItem menuItem = (MenuItem) menu.findItem(R.id.menu_opt_home);
menuItem.setIntent(new Intent(this, FeedTabActivity.class));
// Preferences menu item
MenuItem preferencesMenuItem = (MenuItem) menu.findItem(R.id.menu_opt_preferences);
preferencesMenuItem.setIntent(new Intent(this,FeedPrefActivity.class));
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
//using icon to go up in honeycomb and higher
switch (item.getItemId())
{
case android.R.id.home:
Intent intent = new Intent(this, FeedTabActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
return true;
default:
}
//thats it
switch (item.getItemId()) {
case R.id.menu_opt_home:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"OptionMenu_Home","Home",1);
// Kill the FeedTabActivity that started this FeedItemActivity, because tab channel id may have changed and wouldn't be correct (wouldn't be the initial FeedTabActivity channel id) if back button is pressed
setResult(RESULT_OK);
startActivity(item.getIntent());
//finish();
return true;
case R.id.menu_opt_channels:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"OptionMenu_Channels","Channels",1);
if (SharedPreferencesHelper.isDynamicMode(this)) {
// Kill the FeedTabActivity that started this FeedItemActivity, because tab channel id may have changed and wouldn't be correct (wouldn't be the initial FeedTabActivity channel id) if back button is pressed
setResult(RESULT_OK);
startActivityForResult(item.getIntent(),KILL_ACTIVITY_CODE);
} else {
//do nothing, default case will be handled
}
return true;
case R.id.menu_opt_preferences:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"OptionMenu_Preferences","Preferences",1);
startActivity(item.getIntent());
return true;
case R.id.menu_opt_about:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"OptionMenu_AboutDialog","About",1);
showDialog(SharedPreferencesHelper.DIALOG_ABOUT);
return true;
default:
if (item.getGroupId() == SharedPreferencesHelper.CHANNEL_SUBMENU_GROUP) {
// Kill the FeedTabActivity that started this FeedItemActivity, because tab channel id is now changing and won't be correct (won't be the initial FeedTabActivity channel id) if back button is pressed
setResult(RESULT_OK);
startActivity(item.getIntent());
//finish();
return true;
}
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
switch(requestCode) {
case KILL_ACTIVITY_CODE:
if (resultCode == RESULT_OK)
finish();
break;
}
}
public void onCreateContextMenu (ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
if (v.getId() == R.id.item) {
menu.setHeaderTitle (R.string.ctx_menu_title);
MenuInflater inflater = getMenuInflater();
Item item = mDbFeedAdapter.getItem(mItemId);
if (item != null) {
long feedId = mDbFeedAdapter.getItemFeedId(mItemId);
boolean isFirstItem = false;
boolean isLastItem = false;
if (mItemId == mDbFeedAdapter.getFirstItem(feedId).getId())
isFirstItem = true;
else if (mItemId == mDbFeedAdapter.getLastItem(feedId).getId())
isLastItem = true;
if (item.isFavorite()) {
if (isFirstItem)
inflater.inflate(R.menu.ctx_menu_item_offline_notfav_next, menu);
else if (isLastItem)
inflater.inflate(R.menu.ctx_menu_item_offline_notfav_prev, menu);
else
inflater.inflate(R.menu.ctx_menu_item_offline_notfav_next_prev, menu);
} else {
if (isFirstItem)
inflater.inflate(R.menu.ctx_menu_item_offline_fav_next, menu);
else if (isLastItem)
inflater.inflate(R.menu.ctx_menu_item_offline_fav_prev, menu);
else
inflater.inflate(R.menu.ctx_menu_item_offline_fav_next_prev, menu);
}
}
}
}
public boolean onContextItemSelected(MenuItem menuItem) {
Item item = mDbFeedAdapter.getItem(mItemId);
ImageView favView = (ImageView) findViewById(R.id.fav);
ContentValues values = null;
Intent intent = null;
long feedId = -1;
switch (menuItem.getItemId()) {
case R.id.read_online:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"ContextMenu_ReadOnline",item.getLink().toString(),1);
startItemWebActivity();
return true;
case R.id.add_fav:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"ContextMenu_AddFavorite",item.getLink().toString(),1);
//item.favorite();
values = new ContentValues();
values.put(DbSchema.ItemSchema.COLUMN_FAVORITE, DbSchema.ON);
mDbFeedAdapter.updateItem(mItemId, values, null);
favView.setImageResource(R.drawable.fav);
Toast.makeText(this, R.string.add_fav_msg, Toast.LENGTH_SHORT).show();
return true;
case R.id.remove_fav:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"ContextMenu_RemoveFavorite",item.getLink().toString(),1);
//item.unfavorite();
Date now = new Date();
long diffTime = now.getTime() - item.getPubdate().getTime();
long maxTime = SharedPreferencesHelper.getPrefMaxHours(this) * 60 * 60 * 1000; // Max hours expressed in milliseconds
// test if item has expired
if (maxTime > 0 && diffTime > maxTime) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(R.string.remove_fav_confirmation)
.setCancelable(false)
.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
ContentValues values = new ContentValues();
values.put(DbSchema.ItemSchema.COLUMN_FAVORITE, DbSchema.OFF);
ImageView favView = (ImageView) findViewById(R.id.fav);
favView.setImageResource(R.drawable.no_fav);
mDbFeedAdapter.updateItem(mItemId, values, null);
Toast.makeText(FeedItemActivity.this, R.string.remove_fav_msg, Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder.create().show();
} else {
values = new ContentValues();
values.put(DbSchema.ItemSchema.COLUMN_FAVORITE, DbSchema.OFF);
mDbFeedAdapter.updateItem(mItemId, values, null);
favView.setImageResource(R.drawable.no_fav);
Toast.makeText(this, R.string.remove_fav_msg, Toast.LENGTH_SHORT).show();
}
return true;
case R.id.next:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"ContextMenu_NextItem",item.getLink().toString(),1);
feedId = mDbFeedAdapter.getItemFeedId(mItemId);
intent = new Intent(this, FeedItemActivity.class);
intent.putExtra(DbSchema.ItemSchema._ID, mDbFeedAdapter.getNextItemId(feedId, mItemId));
startActivity(intent);
finish();
return true;
case R.id.previous:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"ContextMenu_PreviousItem",item.getLink().toString(),1);
feedId = mDbFeedAdapter.getItemFeedId(mItemId);
intent = new Intent(this, FeedItemActivity.class);
intent.putExtra(DbSchema.ItemSchema._ID, mDbFeedAdapter.getPreviousItemId(feedId, mItemId));
startActivity(intent);
finish();
return true;
case R.id.share:
TrackerAnalyticsHelper.trackEvent(this,LOG_TAG,"ContextMenu_Share",item.getLink().toString(),1);
item = mDbFeedAdapter.getItem(mItemId);
if (item != null) {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_SUBJECT, String.format(getString(R.string.share_subject), getString(R.string.app_name)));
shareIntent.putExtra(Intent.EXTRA_TEXT, item.getTitle() + " " + item.getLink().toString());
shareIntent.setType("text/plain");
startActivity(Intent.createChooser(shareIntent, getString(R.string.share)));
}
return true;
default:
return super.onContextItemSelected(menuItem);
}
}
@Override
protected Dialog onCreateDialog(int id) {
Dialog dialog = null;
CharSequence title = null;
LayoutInflater inflater = null;
View dialogLayout = null;
AlertDialog.Builder builder = null;
switch (id) {
case SharedPreferencesHelper.DIALOG_ABOUT:
//title = getResources().getText(R.string.app_name) + " - " + getResources().getText(R.string.version) + " " + SharedPreferencesHelper.getVersionName(this);
title = getString(R.string.app_name) + " - " + getString(R.string.version) + " " + SharedPreferencesHelper.getVersionName(this);
/*
* Without cancel button
dialog = new Dialog(this);
dialog.setContentView(R.layout.dialog_about);
dialog.setTitle(title);
*/
inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
dialogLayout = inflater.inflate(R.layout.dialog_about, null);
TextView childView = null;
if (getString(R.string.website).equals("")) {
childView = (TextView) dialogLayout.findViewById(R.id.website);
childView.setVisibility(View.GONE);
}
if (getString(R.string.email).equals("")) {
childView = (TextView) dialogLayout.findViewById(R.id.email);
childView.setVisibility(View.GONE);
}
if (getString(R.string.contact).equals("")) {
childView = (TextView) dialogLayout.findViewById(R.id.contact);
childView.setVisibility(View.GONE);
}
if (getString(R.string.powered).equals("")) {
childView = (TextView) dialogLayout.findViewById(R.id.powered);
childView.setVisibility(View.GONE);
}
builder = new AlertDialog.Builder(this);
builder.setView(dialogLayout)
.setTitle(title)
.setIcon(R.drawable.ic_dialog)
.setNeutralButton(R.string.close, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
dialog = builder.create();
break;
case SharedPreferencesHelper.DIALOG_NO_CONNECTION:
title = getString(R.string.error);
inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
dialogLayout = inflater.inflate(R.layout.dialog_no_connection, null);
builder = new AlertDialog.Builder(this);
builder.setView(dialogLayout)
.setTitle(title)
.setIcon(R.drawable.ic_dialog)
.setNeutralButton(R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
dialog = builder.create();
break;
default:
dialog = null;
}
return dialog;
}
}
我的老FeedItemActivity： http://pastebin.com/4rV9uq15
我hopy有人可以幫助我，非常感謝你！
當按下設備或模擬器的MENU按鈕時會發生什麼？ – CommonsWare
在我的nexus 4上，沒有顯示菜單按鈕，這意味着如果有任何事情將不會發生。但我會在模擬器上測試 – Mdlc
剛剛測試過，遺憾的是沒有任何反應。 – Mdlc