Java Tab类代码示例

import android.app.ActionBar.Tab; //导入依赖的package包/类
/**
 * @brief Method called when the tab is selected
 * @param tab
 * @param ft
 * @details Method called when the tab is selected
 */
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
    // Check if the fragment is already initialized
	  mFragment = mActivity.getFragmentManager().findFragmentByTag(mTag);
	  mActivity.getSupportFragmentManager().findFragmentByTag(mTag);
    if (mFragment == null) {
      // If not, instantiate and add it to the activity
      mFragment = Fragment.instantiate(
                        mActivity, mClass.getName());
      //mFragment.setProviderId(mTag); // id for event provider
      setmTransaction(ft);
      ft.add(android.R.id.content, mFragment, mTag);
    } else {
      // If it exists, simply attach it in order to show it
    	setmTransaction(ft);
      ft.attach(mFragment);
    }

    
  }
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
/**
 * @brief Method called when the tab is unselected
 * @param tab
 * @param ft
 * @details Method called when the tab is unselected
 */
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
	  
	  if (mFragment != null) {
      // Detach the fragment, because another one is being attached
      ft.detach(mFragment);
    }
	  
  }
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // this.setContentView(R.layout.layout_main);

    ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    actionBar.setDisplayShowTitleEnabled(true);

    Tab customerTab = actionBar.newTab().setText(
            this.getResources().getString(R.string.customer_tab));
    final Fragment customerPackageList = new CustomerPackageFragment(this);
    customerTab.setTabListener(new PackageTabListener(customerPackageList));

    Tab systemTab = actionBar.newTab().setText(
            this.getResources().getString(R.string.system_tab));
    final Fragment systemPackageList = new SystemPackageFragment(this);
    systemTab.setTabListener(new PackageTabListener(systemPackageList));

    actionBar.addTab(customerTab);
    actionBar.addTab(systemTab);
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
public void onTabSelected(final Tab tab, final FragmentTransaction ft) {
    if (fragment == null) {
        fragment = Fragment.instantiate(MainActivity.this, clazz.getName());
        ft.replace(R.id.fragment_container, fragment, clazz.getSimpleName());
    } else if (fragment.isDetached()) {
        ft.attach(fragment);
    }

    currentFragment = fragment;

    if (searchView != null) {
        searchView.setOnQueryTextListener(null);
        searchView.setQuery(null, false);
        searchView.setOnQueryTextListener(createSearchQueryListener());
    }
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
	Fragment fragment = null;
	/*if (tab.getPosition() == 0) {
		fragment = new AlertsFragment();
	}
	else if (tab.getPosition() == 1) {
		fragment = new ConditionsFragment();
	}
	else if (tab.getPosition() == 2) {
		fragment = new ForecastFragment();
	}*/
	if (tab.getPosition() == 0) {
		fragment = new ConditionsFragment();
	}
	else if (tab.getPosition() == 1) {
		fragment = new ForecastFragment();
	}
	
	if (fragment != null) {
		mCurrentFragment = fragment;
		getFragmentManager().beginTransaction().replace(R.id.content_frame, fragment).commit();
	}
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
public void onTabSelected(Tab tab, FragmentTransaction ft) {
    int tabSelected = tab.getPosition();
    Log.d(TAG, "Tab selected " + tabSelected + " current act " + currentActivityNo);

    if (canNavigateTo(tabSelected)){
        viewPager.setCurrentItem(tabSelected);
        currentActivityNo = tabSelected;
        this.stopReading();
        WidgetFactory currentWidget = (WidgetFactory) apAdapter.getItem(currentActivityNo);
        currentWidget.resetTimeTracking();
    }
    else{
        Runnable setPreviousTab = new Runnable(){
            @Override
            public void run() {
                UIUtils.showAlert(CourseActivity.this, R.string.sequencing_dialog_title, R.string.sequencing_section_message);
                actionBar.setSelectedNavigationItem(currentActivityNo);
                viewPager.setCurrentItem(currentActivityNo);
            }
        };
        Handler handler=new Handler();
        handler.post(setPreviousTab);
    }
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
protected void onResume() {
	super.onResume();
	// Select proper stack
	ActionBar actionBar = getActionBar();
	if (actionBar != null) {
		Tab tab = actionBar.getSelectedTab();
		Stack<String> backStack = backStacks.get(tab.getTag());
		if (!backStack.isEmpty()) {
			// Restore topmost fragment (e.g. after application switch)
			String tag = backStack.peek();
			Fragment fragment = getFragmentManager().findFragmentByTag(tag);
			if (fragment.isDetached()) {
				FragmentTransaction ft = getFragmentManager().beginTransaction();
				ft.attach(fragment);
				ft.commit();
			}
		}
	}
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
protected void onPause() {
	super.onPause();
	// Select proper stack
	ActionBar actionBar = getActionBar();
	if (actionBar != null) {
		Tab tab = actionBar.getSelectedTab();
		Stack<String> backStack = backStacks.get(tab.getTag());
		if (!backStack.isEmpty()) {
			// Detach topmost fragment otherwise it will not be correctly
			// displayed
			// after orientation change
			String tag = backStack.peek();
			FragmentTransaction ft = getFragmentManager().beginTransaction();
			Fragment fragment = getFragmentManager().findFragmentByTag(tag);
			ft.detach(fragment);
			ft.commit();
		}
	}
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
	// Select proper stack
	Stack<String> backStack = backStacks.get(tab.getTag());

	if (backStack.size() > 1) {
		// ft.setCustomAnimations(R.anim.slide_from_right,
		// R.anim.slide_to_left);
		// Clean the stack leaving only initial fragment
		while (backStack.size() > 1) {
			// Pop topmost fragment
			String tag = backStack.pop();
			Fragment fragment = getFragmentManager().findFragmentByTag(tag);
			// Remove it
			ft.remove(fragment);
		}
	}
	showFragment(backStack, ft);
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
	super.onActivityResult(requestCode, resultCode, data);

	// Select proper stack
	ActionBar actionBar = getActionBar();
	if (actionBar != null) {
		Tab tab = actionBar.getSelectedTab();
		Stack<String> backStack = backStacks.get(tab.getTag());
		Fragment fragment = getFragmentManager().findFragmentByTag(backStack.peek());

		// Passing the Activity Result for the child fragment
		if (fragment != null) {
			fragment.onActivityResult(requestCode, resultCode, data);
		}
	}
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
public void addFragment(Fragment fragment) {
	// Select proper stack
	ActionBar actionBar = getActionBar();
	if (actionBar != null) {
		Tab tab = actionBar.getSelectedTab();
		Stack<String> backStack = backStacks.get(tab.getTag());

		FragmentTransaction ft = getFragmentManager().beginTransaction();

		// Get topmost fragment
		String tag = backStack.peek();
		Fragment top = getFragmentManager().findFragmentByTag(tag);
		if (top != null) {
			ft.detach(top);
		}
		// Add new fragment
		addFragment(fragment, backStack, ft);
		ft.commit();
	}
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
	if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
		// do something on back.
		ActionBar actionBar = getActionBar();
		if (actionBar != null) {
			Tab tabSelected = actionBar.getSelectedTab();
			if (tabSelected.getText().equals(getString(R.string.tab__list))) {
				finish();
				moveTaskToBack(true);
			} else {
				getActionBar().selectTab(actionBar.newTab().setTag(TabType.LIST).setText(R.string.tab__list).setTabListener(this));
			}
		}
	}
	return super.onKeyDown(keyCode, event);
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	
	ActionBar ab = getActionBar();
	ab.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
	
	// Add tabs
	Tab tab = ab.newTab()
			.setText(R.string.agendas)
			.setTabListener(new CalendarMuteTabListener<>(this, TAG_TAB_CALENDARS, CalendarsFragment.class));
	ab.addTab(tab);
	
	tab = ab.newTab()
			.setText(R.string.actions)
			.setTabListener(new CalendarMuteTabListener<>(this, TAG_TAB_ACTIONS, ActionsFragment.class));
	ab.addTab(tab);
	
	if(ACTION_SHOW_ACTIONS.equals(getIntent().getAction()))
		ab.setSelectedNavigationItem(1); // Show actions tab
	if(savedInstanceState != null && savedInstanceState.containsKey(KEY_SAVED_CURRENT_TAB))
		ab.setSelectedNavigationItem(savedInstanceState.getInt(KEY_SAVED_CURRENT_TAB));
	
	// Start service
	MuteService.startIfNecessary(this);
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
public void addTab(Tab tab, Class<?> clss, Event event){
	TabInfo info = new TabInfo(clss, event);
	tab.setTag(info);
	tab.setTabListener(this);
	mTabs.add(info);
       mFragments.add(EventFragment.newInstance(event));
	mActionBar.addTab(tab);
	notifyDataSetChanged();
}
 

import android.app.ActionBar.Tab; //导入依赖的package包/类
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
	mViewPager.setCurrentItem(tab.getPosition());
	Object tag = tab.getTag();
	for (int i = 0; i<mTabs.size(); i++){
		if (mTabs.get(i) == tag){
			mViewPager.setCurrentItem(i);
		}
	}
}