下面列出了android.app.FragmentTransaction#show ( ) 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。
private void toggleCallControlFragmentVisibility() {
if (!iceConnected || !callFragment.isAdded()) {
return;
}
// Show/hide call control fragment
callControlFragmentVisible = !callControlFragmentVisible;
FragmentTransaction ft = getFragmentManager().beginTransaction();
if (callControlFragmentVisible) {
ft.show(callFragment);
ft.show(hudFragment);
} else {
ft.hide(callFragment);
ft.hide(hudFragment);
}
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
/**
* 用Fragment替换视图
*
* @param resView 将要被替换掉的视图
* @param targetFragment 用来替换的Fragment
*/
public void changeFragment(int resView, KJFragment targetFragment) {
if (targetFragment.equals(currentKJFragment)) {
return;
}
FragmentTransaction transaction = getFragmentManager()
.beginTransaction();
if (!targetFragment.isAdded()) {
transaction.add(resView, targetFragment, targetFragment.getClass()
.getName());
}
if (targetFragment.isHidden()) {
transaction.show(targetFragment);
targetFragment.onChange();
}
if (currentKJFragment != null && currentKJFragment.isVisible()) {
transaction.hide(currentKJFragment);
}
currentKJFragment = targetFragment;
transaction.commit();
}
/**
* 用Fragment替换视图
*
* @param resView 将要被替换掉的视图
* @param targetFragment 用来替换的Fragment
*/
public void changeFragment(int resView, KJFragment targetFragment) {
if (targetFragment.equals(currentKJFragment)) {
return;
}
FragmentTransaction transaction = getFragmentManager()
.beginTransaction();
if (!targetFragment.isAdded()) {
transaction.add(resView, targetFragment, targetFragment.getClass()
.getName());
}
if (targetFragment.isHidden()) {
transaction.show(targetFragment);
targetFragment.onChange();
}
if (currentKJFragment != null && currentKJFragment.isVisible()) {
transaction.hide(currentKJFragment);
}
currentKJFragment = targetFragment;
transaction.commit();
}
private void switchTo(int id) {
FragmentTransaction ft = mManager.beginTransaction();
ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out, android.R.animator.fade_in, android.R.animator.fade_out);
for (int i = 0; i < mFragments.length; i++) {
Fragment f = mFragments[i];
if (f != null) {
if (i != id) {
ft.hide(f);
} else {
ft.show(f);
}
}
}
ft.commit();
}
private LyricsViewFragment init(FragmentManager fragmentManager, boolean startEmpty) {
LyricsViewFragment lyricsViewFragment = (LyricsViewFragment) fragmentManager.findFragmentByTag(LYRICS_FRAGMENT_TAG);
if (lyricsViewFragment == null || lyricsViewFragment.isDetached())
lyricsViewFragment = new LyricsViewFragment();
lyricsViewFragment.startEmpty(startEmpty);
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.setCustomAnimations(R.animator.slide_in_end, R.animator.slide_out_start, R.animator.slide_in_start, R.animator.slide_out_end);
if (!lyricsViewFragment.isAdded()) {
fragmentTransaction.add(id.main_fragment_container, lyricsViewFragment, LYRICS_FRAGMENT_TAG);
}
Fragment[] activeFragments = getActiveFragments();
displayedFragment = getDisplayedFragment(activeFragments);
for (Fragment fragment : activeFragments)
if (fragment != null) {
if (fragment != displayedFragment && !fragment.isHidden()) {
fragmentTransaction.hide(fragment);
fragment.onHiddenChanged(true);
} else if (fragment == displayedFragment)
fragmentTransaction.show(fragment);
}
fragmentTransaction.commit();
return lyricsViewFragment;
}
private void switchFragment(int index) {
if (index == mCurrentIndex) return;
Fragment fragment = mFragments.get(index);
FragmentTransaction transaction =
mFragmentManager
.beginTransaction()
.setCustomAnimations(R.animator.fragment_in, R.animator.fragment_out);
String indexString = String.valueOf(index);
Fragment targetFragment = mFragmentManager.findFragmentByTag(indexString);
if (mCurrentIndex != -1) {
// 不是首次启动
transaction.hide(mFragments.get(mCurrentIndex));
}
if (targetFragment == null) {
// 之前没有添加过
transaction.add(R.id.fl_content, fragment, indexString);
} else {
transaction.show(targetFragment);
}
transaction.commit();
mCurrentIndex = index;
}
/**使用本方法前必须先add*/
public void show(Fragment fragment){
if (currentFragment==fragment) {
return;//如果是当前fragment，则不重新show一遍了，无意义
}
FragmentTransaction ft = fm.beginTransaction();
for (Fragment f:fs) {
ft.hide(f);
}
ft.show(fragment);
ft.commit();
currentFragment = fragment;
}
private void navToFragment(boolean isMain) {
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
if (isMain) {
fragmentTransaction.show(mMain);
mToolbar.setTitle(R.string.title_activity_user);
mIsMain = true;
} else {
fragmentTransaction.hide(mMain);
mToolbar.setTitle(R.string.title_activity_follow);
mIsMain = false;
}
fragmentTransaction.commit();
}
public void onTabSelect(View v) {
int id = v.getId();
FragmentManager manager = getFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
hideFragments(transaction);
setNormalBackgrounds();
if (id == R.id.btn_message) {
if (conversationFragment == null) {
conversationFragment = new LoveFragment();
transaction.add(R.id.fragment_container, conversationFragment);
}
transaction.show(conversationFragment);
} else if (id == R.id.btn_contact) {
if (contactFragment == null) {
contactFragment = new ContactFragment();
transaction.add(R.id.fragment_container, contactFragment);
}
transaction.show(contactFragment);
} else if (id == R.id.btn_discover) {
if (discoverFragment == null) {
discoverFragment = new MeetFragment();
transaction.add(R.id.fragment_container, discoverFragment);
}
transaction.show(discoverFragment);
} else if (id == R.id.btn_my_space) {
if (mySpaceFragment == null) {
mySpaceFragment = new MySpaceFragment();
transaction.add(R.id.fragment_container, mySpaceFragment);
}
transaction.show(mySpaceFragment);
}
int pos;
for (pos = 0; pos < FRAGMENT_N; pos++) {
if (tabs[pos] == v) {
break;
}
}
transaction.commit();
setTopDrawable(tabs[pos], tabsActiveBackIds[pos]);
}
private boolean showCamera(CallbackContext callbackContext) {
if(this.hasView(callbackContext) == false){
return true;
}
FragmentManager fragmentManager = cordova.getActivity().getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.show(fragment);
fragmentTransaction.commit();
callbackContext.success();
return true;
}
static
void showFragments(Fragment... fragments)
{
FragmentTransaction transaction = s_fragmentManager.beginTransaction();
for(Fragment fragment : fragments)
{
transaction.show(fragment);
}
transaction.commit();
}
private static
void switchToFragment(Fragment fragment, boolean addToBackStack)
{
if(fragment.isHidden())
{
Fragment[] fragments = {
s_fragmentFavourites, s_fragmentManage, s_fragmentFeeds, s_fragmentSettings
};
FragmentTransaction transaction = s_fragmentManager.beginTransaction();
for(Fragment frag : fragments)
{
if(frag.isVisible())
{
transaction.hide(frag);
}
}
transaction.show(fragment);
if(addToBackStack)
{
transaction.addToBackStack(null);
// Set the default transition for adding to the stack.
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
}
transaction.commit();
s_fragmentManager.executePendingTransactions();
fragment.getActivity().invalidateOptionsMenu();
}
}
private void showStatus ()
{
FragmentManager fm = getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.show(fm.findFragmentById(R.id.status_list));
ft.hide(fm.findFragmentById(R.id.device_list));
ft.hide(fm.findFragmentById(R.id.info_screen));
ft.commit();
}
private void showNearby ()
{
FragmentManager fm = getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.hide(fm.findFragmentById(R.id.status_list));
ft.hide(fm.findFragmentById(R.id.info_screen));
ft.show(fm.findFragmentById(R.id.device_list));
ft.commit();
}
private void showInfo ()
{
FragmentManager fm = getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.hide(fm.findFragmentById(R.id.status_list));
ft.show(fm.findFragmentById(R.id.info_screen));
ft.hide(fm.findFragmentById(R.id.device_list));
ft.commit();
}
void updateFragmentVisibility() {
FragmentTransaction ft = getFragmentManager().beginTransaction();
if (mCheckBox1.isChecked()) ft.show(mFragment1);
else ft.hide(mFragment1);
if (mCheckBox2.isChecked()) ft.show(mFragment2);
else ft.hide(mFragment2);
ft.commit();
}
private void switchToFragment(int i) {
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(android.R.animator.fade_in,
android.R.animator.fade_out);
if (mCurrentFragmentIndex == i) {
fragmentTransaction.add(R.id.fragmentContainer, getFragment(i));
fragmentTransaction.commitAllowingStateLoss();
mCurrentFragmentIndex = i;
if (i == BOTTOM_ITEM_TITLE_MEIZI_INDEX) {
mGirlFragmentAdded = true;
}
return;
}
fragmentTransaction.hide(getFragment(mCurrentFragmentIndex));
switch (i) {
case BOTTOM_ITEM_TITLE_MEIZI_INDEX:
if (mGirlFragmentAdded) {
fragmentTransaction.show(getFragment(i));
} else {
fragmentTransaction.add(R.id.fragmentContainer, getFragment(i));
mGirlFragmentAdded = true;
}
break;
case BOTTOM_ITEM_TITLE_ANDROID_INDEX:
if (mAndroidFragmentAdded) {
fragmentTransaction.show(getFragment(i));
} else {
fragmentTransaction.add(R.id.fragmentContainer, getFragment(i));
mAndroidFragmentAdded = true;
}
break;
case BOTTOM_ITEM_TITLE_IOS_INDEX:
if (mIOSFragmentAdded) {
fragmentTransaction.show(getFragment(i));
} else {
fragmentTransaction.add(R.id.fragmentContainer, getFragment(i));
mIOSFragmentAdded = true;
}
break;
case BOTTOM_ITEM_TITLE_VIDEO_INDEX:
if (mVideoFragmentAdded) {
fragmentTransaction.show(getFragment(i));
} else {
fragmentTransaction.add(R.id.fragmentContainer, getFragment(i));
mVideoFragmentAdded = true;
}
break;
case BOTTOM_ITEM_TITLE_WEB_INDEX:
if (mWebFragmentAdded) {
fragmentTransaction.show(getFragment(i));
} else {
fragmentTransaction.add(R.id.fragmentContainer, getFragment(i));
mWebFragmentAdded = true;
}
break;
default:
break;
}
fragmentTransaction.commitAllowingStateLoss();
mCurrentFragmentIndex = i;
}
/**
* Hides every tab and shows search UI for phone lookup.
*/
private void enterSearchUi() {
if (mSearchFragment == null) {
// We add the search fragment dynamically in the first onLayoutChange() and
// mSearchFragment is set sometime later when the fragment transaction is actually
// executed, which means there's a window when users are able to hit the (physical)
// search key but mSearchFragment is still null.
// It's quite hard to handle this case right, so let's just ignore the search key
// in this case. Users can just hit it again and it will work this time.
return;
}
if (mSearchView == null) {
prepareSearchView();
}
final ActionBar actionBar = getActionBar();
final Tab tab = actionBar.getSelectedTab();
// User can search during the call, but we don't want to remember the status.
if (tab != null && !DialpadFragment.phoneIsInUse()) {
mLastManuallySelectedFragment = tab.getPosition();
}
mSearchView.setQuery(null, true);
actionBar.setDisplayShowCustomEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowHomeEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
updateFakeMenuButtonsVisibility(false);
for (int i = 0; i < TAB_INDEX_COUNT; i++) {
sendFragmentVisibilityChange(i, false /* not visible */ );
}
// Show the search fragment and hide everything else.
mSearchFragment.setUserVisibleHint(true);
final FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.show(mSearchFragment);
transaction.commitAllowingStateLoss();
mViewPager.setVisibility(View.GONE);
// We need to call this and onActionViewCollapsed() manually, since we are using a custom
// layout instead of asking the search menu item to take care of SearchView.
mSearchView.onActionViewExpanded();
mInSearchUi = true;
}
private void selectItem(int position) {
FragmentManager fragmentManager = getFragmentManager();
Fragment newFragment;
String tag;
switch (position) {
default:
// Lyrics
tag = LYRICS_FRAGMENT_TAG;
newFragment = fragmentManager.findFragmentByTag(tag);
if (newFragment == null || !(newFragment instanceof LyricsViewFragment))
newFragment = new LyricsViewFragment();
((LyricsViewFragment) newFragment).showTransitionAnim = true;
break;
case 1:
// Recent Tracks
tag = RECENT_TRACKS_FRAGMENT_TAG;
newFragment = fragmentManager.findFragmentByTag(tag);
if (newFragment == null || !(newFragment instanceof RecentTracksFragment))
newFragment = new RecentTracksFragment();
((RecentTracksFragment) newFragment).showTransitionAnim = true;
break;
case 2:
// Saved Lyrics
tag = LOCAL_LYRICS_FRAGMENT_TAG;
newFragment = fragmentManager.findFragmentByTag(tag);
if (newFragment == null || !(newFragment instanceof LocalLyricsFragment))
newFragment = new LocalLyricsFragment();
((LocalLyricsFragment) newFragment).showTransitionAnim = true;
break;
case 3:
// Separator
return;
case 4:
// Settings
if (drawer instanceof DrawerLayout)
((DrawerLayout) drawer).closeDrawer(drawerView);
drawer.postDelayed(new Runnable() {
@Override
public void run() {
Intent settingsIntent = new Intent(MainActivity.this, SettingsActivity.class);
startActivityForResult(settingsIntent, 77);
}
}, 250);
return;
case 5:
// Feedback
return;
case 6:
// About Dialog
if (drawer instanceof DrawerLayout)
((DrawerLayout) drawer).closeDrawer(drawerView);
drawer.postDelayed(new Runnable() {
@Override
public void run() {
Intent aboutIntent = new Intent(MainActivity.this, AboutActivity.class);
startActivityForResult(aboutIntent, 77);
}
}, 250);
return;
}
final Fragment activeFragment = getDisplayedFragment(getActiveFragments());
prepareAnimations(activeFragment);
// Insert the fragment by replacing any existing fragment
if (newFragment != activeFragment) {
if (mActionMode != null)
mActionMode.finish();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(R.animator.slide_in_start, R.animator.slide_out_start, R.animator.slide_in_start, R.animator.slide_out_start);
fragmentTransaction.hide(activeFragment);
if (newFragment.isAdded())
fragmentTransaction.show(newFragment);
else
fragmentTransaction.add(id.main_fragment_container, newFragment, tag);
((CollapsingToolbarLayout) findViewById(R.id.toolbar_layout)).setCollapsedTitleTextColor(Color.WHITE);
fragmentTransaction.commitAllowingStateLoss();
if (activeFragment instanceof LyricsViewFragment || newFragment instanceof LyricsViewFragment) {
final Fragment newFragmentCopy = newFragment;
activeFragment.getView().postDelayed(() -> {
if (activeFragment instanceof LyricsViewFragment && activeFragment.getView() != null) {
expandToolbar(false);
showRefreshFab(false);
} else if (newFragmentCopy instanceof LyricsViewFragment && activeFragment.getView() != null) {
expandToolbar(true);
showRefreshFab(true);
}
}, getResources().getInteger(android.R.integer.config_longAnimTime));
}
MaterialSuggestionsSearchView suggestionsSearchView = findViewById(id.material_search_view);
if (suggestionsSearchView.isSearchOpen())
suggestionsSearchView.closeSearch();
}
if (drawer instanceof DrawerLayout && (newFragment == activeFragment))
((DrawerLayout) drawer).closeDrawer(drawerView);
}