下面列出了android.view.MenuItem#setEnabled ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
for (int index = 0; index < menu.size(); index++) {
menu.getItem(index).setEnabled(true);
}
if (MainActivity.user == null || MainActivity.user == MainActivity.viewUser) {
MenuItem item = menu.findItem(R.id.menuFlag);
if (item != null) {
item.setEnabled(false);
}
}
if (MainActivity.user != MainActivity.viewUser) {
menu.findItem(R.id.menuChangeIcon).setEnabled(false);
menu.findItem(R.id.menuEditUser).setEnabled(false);
}
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
AppSniffer154 app = (AppSniffer154) getApplication();
MenuItem item = menu.findItem(R.id.itemToggleTestMode);
if (app.isTestModeEnblad()) {
item.setTitle(R.string.titleTestModeDisable);
} else {
item.setTitle(R.string.titleTestModeEnable);
}
item = menu.findItem(R.id.itemExport);
if (!app.isSniffingInProgress()
&& !app.getSessionUri().equals(Uri.EMPTY))
item.setEnabled(true);
else
item.setEnabled(false);
item = menu.findItem(R.id.itemManageSessions);
item.setEnabled(!app.isSniffingInProgress());
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
switch (id) {
case R.id.action_save_rule:
Log.i(TAG, "Save Menu Button Clicked");
// Set the item to disabled while saving
item.setEnabled(false);
saveEditedRule();
item.setEnabled(true);
break;
case R.id.action_delete_rule:
deleteRule();
break;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onPrepareOptionsMenu (Menu menu)
{
super.onPrepareOptionsMenu(menu);
MenuItem mi = menu.findItem(R.id.confirm);
mi.setVisible(_state.containsKey(ARG_ADD_EXISTING_LOCATION));
mi.setTitle(_state.getBoolean(ARG_ADD_EXISTING_LOCATION) ? R.string.add_container : R.string.create_new_container);
boolean enabled = checkParams();
mi.setEnabled(enabled);
@SuppressWarnings("deprecation") StateListDrawable sld = (StateListDrawable) getActivity().getResources().getDrawable(R.drawable.ic_menu_done);
if(sld!=null)
{
sld.setState(enabled ? new int[]{android.R.attr.state_enabled} : new int[0]);
mi.setIcon(sld.getCurrent());
}
}
/**
* Will be call before shown
* Use it to enable or disable item
*
* @param menu
* @return
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// find items
MenuItem killProcess = menu.findItem(R.id.m_kill_process);
MenuItem selectAllItem = menu.findItem(R.id.m_select_all);
MenuItem cancelAllItem = menu.findItem(R.id.m_cancel_all);
// get checked item count
int checkedCount = getCheckedItemCount();
if (0 == checkedCount) {
// no checked item, disable it
killProcess.setEnabled(false);
cancelAllItem.setEnabled(false);
} else {
// enable it
killProcess.setEnabled(true);
cancelAllItem.setEnabled(true);
}
// if all item are checked, no need enable select all
if (checkedCount == checkeds.size()) {
selectAllItem.setEnabled(false);
} else {
selectAllItem.setEnabled(true);
}
return true;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.fragment_locatr, menu);
MenuItem searchItem = menu.findItem(R.id.action_locate);
searchItem.setEnabled(mClient.isConnected());
}
@CallSuper
public void showNewLayoutInfo(final MenuItem item) {
item.setEnabled(false);
mRecyclerView.postDelayed(new Runnable() {
@Override
public void run() {
item.setEnabled(true);
}
}, 1000L);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem item = menu.findItem(R.id.menuMyPosts);
if (MainActivity.user == null) {
item.setEnabled(false);
}
return super.onPrepareOptionsMenu(menu);
}
/**
* Updates the bookmark item's visibility.
*
* @param bookmarkMenuItem {@link MenuItem} for adding/editing the bookmark.
* @param currentTab Current tab being displayed.
*/
protected void updateBookmarkMenuItem(MenuItem bookmarkMenuItem, Tab currentTab) {
bookmarkMenuItem.setEnabled(mBookmarkBridge.isEditBookmarksEnabled());
if (currentTab.getBookmarkId() != Tab.INVALID_BOOKMARK_ID) {
bookmarkMenuItem.setIcon(R.drawable.btn_star_filled);
bookmarkMenuItem.setChecked(true);
bookmarkMenuItem.setTitleCondensed(mActivity.getString(R.string.edit_bookmark));
} else {
bookmarkMenuItem.setIcon(R.drawable.btn_star);
bookmarkMenuItem.setChecked(false);
bookmarkMenuItem.setTitleCondensed(null);
}
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem item = menu.findItem(R.id.menuMyPosts);
if (MainActivity.user == null) {
item.setEnabled(false);
}
return true;
}
/**
* Updates the bookmark item's visibility.
*
* @param bookmarkMenuItem {@link MenuItem} for adding/editing the bookmark.
* @param currentTab Current tab being displayed.
*/
protected void updateBookmarkMenuItem(MenuItem bookmarkMenuItem, Tab currentTab) {
bookmarkMenuItem.setEnabled(mBookmarkBridge.isEditBookmarksEnabled());
if (currentTab.getBookmarkId() != Tab.INVALID_BOOKMARK_ID) {
bookmarkMenuItem.setIcon(R.drawable.btn_star_filled);
bookmarkMenuItem.setChecked(true);
bookmarkMenuItem.setTitleCondensed(mActivity.getString(R.string.edit_bookmark));
} else {
bookmarkMenuItem.setIcon(R.drawable.btn_star);
bookmarkMenuItem.setChecked(false);
bookmarkMenuItem.setTitleCondensed(null);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == R.id.action_share) {
item.setEnabled(false);
createArticle();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem item = menu.findItem(R.id.menuMyBots);
if (MainActivity.user == null) {
item.setEnabled(false);
}
item.setTitle("My " + getType() + "s");
return true;
}
/**
* {@inheritDoc}
*/
@Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
if (mContainerActivity != null && mContainerActivity.getStorageManager() != null) {
// Update the file
setFile(mContainerActivity.getStorageManager().getFileById(getFile().getFileId()));
FileMenuFilter mf = new FileMenuFilter(
getFile(),
mContainerActivity.getStorageManager().getAccount(),
mContainerActivity,
getActivity()
);
mf.filter(menu);
}
// additional restriction for this fragment
// TODO allow renaming in PreviewImageFragment
MenuItem item = menu.findItem(R.id.action_rename_file);
if (item != null) {
item.setVisible(false);
item.setEnabled(false);
}
// additional restriction for this fragment
// TODO allow refresh file in PreviewImageFragment
item = menu.findItem(R.id.action_sync_file);
if (item != null) {
if (getFile().isDown()) {
item.setVisible(false);
item.setEnabled(false);
} else
{
item.setVisible(true);
item.setEnabled(true);
}
}
// additional restriction for this fragment
// TODO allow refresh file in PreviewImageFragment
item = menu.findItem(R.id.action_download_file);
if (item != null) {
item.setVisible(false);
item.setEnabled(false);
}
// additional restriction for this fragment
// TODO allow refresh file in PreviewImageFragment
item = menu.findItem(R.id.action_send_file);
if (item != null && !getFile().isDown()) {
item.setVisible(false);
item.setEnabled(false);
}
// additional restriction for this fragment
item = menu.findItem(R.id.action_move);
if (item != null) {
item.setVisible(false);
item.setEnabled(false);
}
// additional restriction for this fragment
item = menu.findItem(R.id.action_copy);
if (item != null) {
item.setVisible(false);
item.setEnabled(false);
}
}
@Override
public boolean onOptionsItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if (isPosting) {
promptAlertDialog(R.string.exit_when_submit, R.string.exit_when_submit_post_detail);
return true;
} else {
if (!titleEditText.getText().toString().equals("") || !contentEditText.getText().toString().equals("")) {
promptAlertDialog(R.string.discard, R.string.discard_detail);
return true;
}
}
finish();
return true;
case R.id.action_send_post_text_activity:
if (!subredditSelected) {
Snackbar.make(coordinatorLayout, R.string.select_a_subreddit, Snackbar.LENGTH_SHORT).show();
return true;
}
if (titleEditText.getText() == null || titleEditText.getText().toString().equals("")) {
Snackbar.make(coordinatorLayout, R.string.title_required, Snackbar.LENGTH_SHORT).show();
return true;
}
isPosting = true;
item.setEnabled(false);
item.getIcon().setAlpha(130);
mPostingSnackbar.show();
String subredditName;
if (subredditIsUser) {
subredditName = "u_" + subredditNameTextView.getText().toString();
} else {
subredditName = subredditNameTextView.getText().toString();
}
Intent intent = new Intent(this, SubmitPostService.class);
intent.putExtra(SubmitPostService.EXTRA_ACCESS_TOKEN, mAccessToken);
intent.putExtra(SubmitPostService.EXTRA_SUBREDDIT_NAME, subredditName);
intent.putExtra(SubmitPostService.EXTRA_TITLE, titleEditText.getText().toString());
intent.putExtra(SubmitPostService.EXTRA_CONTENT, contentEditText.getText().toString());
intent.putExtra(SubmitPostService.EXTRA_KIND, APIUtils.KIND_SELF);
intent.putExtra(SubmitPostService.EXTRA_FLAIR, flair);
intent.putExtra(SubmitPostService.EXTRA_IS_SPOILER, isSpoiler);
intent.putExtra(SubmitPostService.EXTRA_IS_NSFW, isNSFW);
intent.putExtra(SubmitPostService.EXTRA_POST_TYPE, SubmitPostService.EXTRA_POST_TEXT_OR_LINK);
startService(intent);
return true;
}
return false;
}
public void setInOperation(boolean inOperation, OnClickListener stopHandler)
{
this.inOperation = inOperation;
this.stopHandler = stopHandler;
if (mainMenu == null)
{
return;
}
// update menu items
for (int i = 0; i < mainMenu.size(); i++)
{
MenuItem m = mainMenu.getItem(i);
if (m.getItemId() == R.id.action_exit)
{
continue;
}
m.setEnabled(!inOperation);
// update undo button
if (m.getItemId() == R.id.action_undo && !inOperation)
{
formulas.getUndoState().updateMenuItemState(m);
}
// update save button for work-sheet fragment
if (fragmentNumber == WORKSHEET_FRAGMENT_ID && m.getItemId() == R.id.action_save)
{
final String str = preferences.getString(OPENED_URI, OPENED_FILE_EMPTY);
final Uri uri = str.equals(OPENED_FILE_EMPTY) ? null : Uri.parse(str);
m.setVisible(!FileUtils.isAssetUri(uri));
}
// update buttons background
ViewUtils.updateMenuIconColor(activity, m);
}
// update floating buttons
if (!inOperation)
{
primaryButtonsSet.activate(R.id.main_flb_action_play, this);
}
else if (inOperation)
{
if (stopHandler != null)
{
primaryButtonsSet.activate(R.id.main_flb_action_stop, stopHandler);
}
else
{
primaryButtonsSet.activate(-1, null);
}
}
// update progress bar
final ProgressBar progressBar = activity.findViewById(R.id.main_progress_bar);
if (progressBar != null)
{
progressBar.setVisibility(inOperation ? View.VISIBLE : View.GONE);
}
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
invalidateDarkOrLightMenuItems(this, menu);
boolean showingMainLog = (mTask != null);
MenuItem item = menu.findItem(R.id.menu_expand_all);
if (mCollapsedMode) {
item.setIcon(R.drawable.ic_expand_more_white_24dp);
item.setTitle(R.string.expand_all);
} else {
item.setIcon(R.drawable.ic_expand_less_white_24dp);
item.setTitle(R.string.collapse_all);
}
MenuItem clear = menu.findItem(R.id.menu_clear);
MenuItem pause = menu.findItem(R.id.menu_play_pause);
clear.setVisible(mCurrentlyOpenLog == null);
pause.setVisible(mCurrentlyOpenLog == null);
MenuItem saveLogMenuItem = menu.findItem(R.id.menu_save_log);
MenuItem saveAsLogMenuItem = menu.findItem(R.id.menu_save_as_log);
saveLogMenuItem.setEnabled(showingMainLog);
saveLogMenuItem.setVisible(showingMainLog);
saveAsLogMenuItem.setEnabled(!showingMainLog);
saveAsLogMenuItem.setVisible(!showingMainLog);
boolean recordingInProgress = ServiceHelper.checkIfServiceIsRunning(getApplicationContext(), LogcatRecordingService.class);
MenuItem recordMenuItem = menu.findItem(R.id.menu_record_log);
recordMenuItem.setEnabled(!recordingInProgress);
recordMenuItem.setVisible(!recordingInProgress);
MenuItem crazyLoggerMenuItem = menu.findItem(R.id.menu_crazy_logger_service);
crazyLoggerMenuItem.setEnabled(UtilLogger.DEBUG_MODE);
crazyLoggerMenuItem.setVisible(UtilLogger.DEBUG_MODE);
MenuItem partialSelectMenuItem = menu.findItem(R.id.menu_partial_select);
partialSelectMenuItem.setEnabled(!partialSelectMode);
partialSelectMenuItem.setVisible(!partialSelectMode);
return super.onPrepareOptionsMenu(menu);
}
private void updateToolbar(State state)
{
// Logo
if (state == null)
{
toolbar.setSubtitle(R.string.state_not_connected);
}
else
{
final StringBuilder subTitle = new StringBuilder();
subTitle.append(state.getDeviceName(configuration.isFriendlyNames()));
if (state.isExtendedZone())
{
if (!subTitle.toString().isEmpty())
{
subTitle.append("/");
}
subTitle.append(state.getActiveZoneInfo().getName());
}
if (!state.isOn())
{
subTitle.append(" (").append(getResources().getString(R.string.state_standby)).append(")");
}
toolbar.setSubtitle(subTitle.toString());
}
// Main menu
if (mainMenu != null)
{
for (int i = 0; i < mainMenu.size(); i++)
{
final MenuItem m = mainMenu.getItem(i);
if (m.getItemId() == R.id.menu_power_standby)
{
m.setEnabled(state != null);
Utils.updateMenuIconColor(this, m);
if (m.isEnabled() && state != null)
{
Utils.setDrawableColorAttr(this, m.getIcon(),
state.isOn() ? android.R.attr.textColorTertiary : R.attr.colorAccent);
}
}
}
}
}
@Override
public void prepareMenu(Menu menu) {
Tab currentTab = mActivity.getActivityTab();
if (currentTab != null) {
MenuItem forwardMenuItem = menu.findItem(R.id.forward_menu_id);
forwardMenuItem.setEnabled(currentTab.canGoForward());
mReloadMenuItem = menu.findItem(R.id.reload_menu_id);
mReloadMenuItem.setIcon(R.drawable.btn_reload_stop);
loadingStateChanged(currentTab.isLoading());
MenuItem shareItem = menu.findItem(R.id.share_row_menu_id);
shareItem.setVisible(mShowShare);
shareItem.setEnabled(mShowShare);
if (mShowShare) {
ShareHelper.configureDirectShareMenuItem(
mActivity, menu.findItem(R.id.direct_share_menu_id));
}
MenuItem iconRow = menu.findItem(R.id.icon_row_menu_id);
MenuItem openInChromeItem = menu.findItem(R.id.open_in_browser_id);
MenuItem bookmarkItem = menu.findItem(R.id.bookmark_this_page_id);
MenuItem downloadItem = menu.findItem(R.id.offline_page_id);
boolean addToHomeScreenVisible = true;
// Hide request desktop site on all chrome:// pages except for the NTP. Check request
// desktop site if it's activated on this page.
MenuItem requestItem = menu.findItem(R.id.request_desktop_site_id);
updateRequestDesktopSiteMenuItem(requestItem, currentTab);
if (mIsMediaViewer) {
// Most of the menu items don't make sense when viewing media.
iconRow.setVisible(false);
openInChromeItem.setVisible(false);
menu.findItem(R.id.find_in_page_id).setVisible(false);
menu.findItem(R.id.request_desktop_site_id).setVisible(false);
addToHomeScreenVisible = false;
} else {
openInChromeItem.setTitle(
DefaultBrowserInfo.getTitleOpenInDefaultBrowser(mIsOpenedByChrome));
updateBookmarkMenuItem(bookmarkItem, currentTab);
}
bookmarkItem.setVisible(mShowStar);
downloadItem.setVisible(mShowDownload);
if (!FirstRunStatus.getFirstRunFlowComplete()) {
openInChromeItem.setVisible(false);
bookmarkItem.setVisible(false);
downloadItem.setVisible(false);
addToHomeScreenVisible = false;
}
downloadItem.setEnabled(DownloadUtils.isAllowedToDownloadPage(currentTab));
String url = currentTab.getUrl();
boolean isChromeScheme = url.startsWith(UrlConstants.CHROME_URL_PREFIX)
|| url.startsWith(UrlConstants.CHROME_NATIVE_URL_PREFIX);
if (isChromeScheme) {
addToHomeScreenVisible = false;
}
// Add custom menu items. Make sure they are only added once.
if (!mIsCustomEntryAdded) {
mIsCustomEntryAdded = true;
for (int i = 0; i < mMenuEntries.size(); i++) {
MenuItem item = menu.add(0, 0, 1, mMenuEntries.get(i));
mItemToIndexMap.put(item, i);
}
}
prepareAddToHomescreenMenuItem(menu, currentTab, addToHomeScreenVisible);
}
}
public static void configureMucDetailsContextMenu(Activity activity, Menu menu, Conversation conversation, User user) {
final MucOptions mucOptions = conversation.getMucOptions();
final boolean advancedMode = PreferenceManager.getDefaultSharedPreferences(activity).getBoolean("advanced_muc_mode", false);
final boolean isGroupChat = mucOptions.isPrivateAndNonAnonymous();
MenuItem sendPrivateMessage = menu.findItem(R.id.send_private_message);
if (user != null && user.getRealJid() != null) {
MenuItem showContactDetails = menu.findItem(R.id.action_contact_details);
MenuItem startConversation = menu.findItem(R.id.start_conversation);
MenuItem giveMembership = menu.findItem(R.id.give_membership);
MenuItem removeMembership = menu.findItem(R.id.remove_membership);
MenuItem giveAdminPrivileges = menu.findItem(R.id.give_admin_privileges);
MenuItem giveOwnerPrivileges = menu.findItem(R.id.give_owner_privileges);
MenuItem removeOwnerPrivileges = menu.findItem(R.id.revoke_owner_privileges);
MenuItem removeAdminPrivileges = menu.findItem(R.id.remove_admin_privileges);
MenuItem removeFromRoom = menu.findItem(R.id.remove_from_room);
MenuItem managePermissions = menu.findItem(R.id.manage_permissions);
removeFromRoom.setTitle(isGroupChat ? R.string.remove_from_room : R.string.remove_from_channel);
MenuItem banFromConference = menu.findItem(R.id.ban_from_conference);
banFromConference.setTitle(isGroupChat ? R.string.ban_from_conference : R.string.ban_from_channel);
MenuItem invite = menu.findItem(R.id.invite);
startConversation.setVisible(true);
final Contact contact = user.getContact();
final User self = conversation.getMucOptions().getSelf();
if ((contact != null && contact.showInRoster()) || mucOptions.isPrivateAndNonAnonymous()) {
showContactDetails.setVisible(contact == null || !contact.isSelf());
}
if ((activity instanceof ConferenceDetailsActivity || activity instanceof MucUsersActivity) && user.getRole() == MucOptions.Role.NONE) {
invite.setVisible(true);
}
boolean managePermissionsVisible = false;
if ((self.getAffiliation().ranks(MucOptions.Affiliation.ADMIN) && self.getAffiliation().outranks(user.getAffiliation())) || self.getAffiliation() == MucOptions.Affiliation.OWNER) {
if (advancedMode) {
if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
managePermissionsVisible = true;
giveMembership.setVisible(true);
} else if (user.getAffiliation() == MucOptions.Affiliation.MEMBER) {
managePermissionsVisible = true;
removeMembership.setVisible(true);
}
if (!Config.DISABLE_BAN) {
managePermissionsVisible = true;
banFromConference.setVisible(true);
}
} else {
if (!Config.DISABLE_BAN || conversation.getMucOptions().membersOnly()) {
removeFromRoom.setVisible(true);
}
}
}
if (self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
if (isGroupChat || advancedMode || user.getAffiliation() == MucOptions.Affiliation.OWNER) {
if (!user.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
managePermissionsVisible = true;
giveOwnerPrivileges.setVisible(true);
} else if (user.getAffiliation() == MucOptions.Affiliation.OWNER){
managePermissionsVisible = true;
removeOwnerPrivileges.setVisible(true);
}
}
if (!isGroupChat || advancedMode || user.getAffiliation() == MucOptions.Affiliation.ADMIN) {
if (!user.getAffiliation().ranks(MucOptions.Affiliation.ADMIN)) {
managePermissionsVisible = true;
giveAdminPrivileges.setVisible(true);
} else if (user.getAffiliation() == MucOptions.Affiliation.ADMIN) {
managePermissionsVisible = true;
removeAdminPrivileges.setVisible(true);
}
}
}
managePermissions.setVisible(managePermissionsVisible);
sendPrivateMessage.setVisible(!isGroupChat && mucOptions.allowPm() && user.getRole().ranks(MucOptions.Role.VISITOR));
} else {
sendPrivateMessage.setVisible(true);
sendPrivateMessage.setEnabled(user != null && mucOptions.allowPm() && user.getRole().ranks(MucOptions.Role.VISITOR));
}
}