Java Code Examples for androidx.fragment.app.Fragment#instantiate()

private BaseDialogFragment create() {
    final Bundle args = prepareArguments();

    final BaseDialogFragment fragment = (BaseDialogFragment) Fragment.instantiate(mContext, mClass.getName(), args);

    args.putBoolean(ARG_CANCELABLE_ON_TOUCH_OUTSIDE, mCancelableOnTouchOutside);

    args.putBoolean(ARG_USE_DARK_THEME, mUseDarkTheme);

    args.putBoolean(ARG_USE_LIGHT_THEME, mUseLightTheme);

    if (mTargetFragment != null) {
        fragment.setTargetFragment(mTargetFragment, mRequestCode);
    } else {
        args.putInt(ARG_REQUEST_CODE, mRequestCode);
    }
    fragment.setCancelable(mCancelable);
    return fragment;
}
 

/**
 * Shows the fragment, which is associated with a specific navigation preference.
 *
 * @param navigationPreference
 *         The navigation preference, whose fragment should be shown, as an instance of the
 *         class {@link NavigationPreference}. The navigation preference may not be null
 * @param arguments
 *         The arguments, which should be passed to the fragment, as an instance of the class
 *         {@link Bundle} or null, if the navigation preferences's extras should be used
 *         instead
 */
private void showPreferenceFragment(@NonNull final NavigationPreference navigationPreference,
                                    @Nullable final Bundle arguments) {
    if (arguments != null && navigationPreference.getExtras() != null) {
        arguments.putAll(navigationPreference.getExtras());
    }

    selectedPreferenceFragment = navigationPreference.getFragment();
    selectedPreferenceFragmentArguments =
            arguments != null ? arguments : navigationPreference.getExtras();

    if (!TextUtils.isEmpty(selectedPreferenceFragment)) {
        Fragment fragment = Fragment.instantiate(this, navigationPreference.getFragment(),
                selectedPreferenceFragmentArguments);
        showPreferenceFragment(navigationPreference, fragment);
        showBreadCrumb(navigationPreference, selectedPreferenceFragmentArguments);
    } else {
        removePreferenceFragmentUnconditionally();

        if (isSplitScreen()) {
            showBreadCrumb(navigationPreference, selectedPreferenceFragmentArguments);
        }
    }

    adaptWizardButtonVisibilities();
}
 

/**
 * Initializes the activity's fragments.
 */
private void initializeFragments() {
    navigationFragment = (NavigationFragment) getSupportFragmentManager()
            .findFragmentByTag(NAVIGATION_FRAGMENT_TAG);

    if (navigationFragment == null) {
        navigationFragment = (NavigationFragment) Fragment
                .instantiate(this, NavigationFragment.class.getName());
        navigationFragment.setRetainInstance(true);
        navigationFragment.setCallback(this);
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        transaction.add(R.id.navigation_fragment_container, navigationFragment,
                NAVIGATION_FRAGMENT_TAG);
        transaction.commit();
    } else if (!navigationFragment.isAdapterCreated()) {
        navigationFragment.setCallback(this);
    }

    navigationFragment.setAdapterCallback(this);
    preferenceFragment = getSupportFragmentManager().findFragmentByTag(PREFERENCE_FRAGMENT_TAG);
    adaptNavigationSelectionColor();
    adaptNavigationDividerColor();
    adaptNavigationEnabledState();
}
 

@Before
public void setUp() {
    TestApplication.applicationGraph.inject(this);
    reset(readabilityClient);
    controller = Robolectric.buildActivity(TestReadabilityActivity.class);
    activity = controller.create().start().resume().visible().get();
    PreferenceManager.getDefaultSharedPreferences(activity)
            .edit()
            .putString(activity.getString(R.string.pref_story_display),
                    activity.getString(R.string.pref_story_display_value_readability))
            .apply();
    Bundle args = new Bundle();
    WebItem item = new TestWebItem() {
        @Override
        public String getId() {
            return "1";
        }

        @Override
        public String getUrl() {
            return "http://example.com/article.html";
        }
    };
    args.putParcelable(WebFragment.EXTRA_ITEM, item);
    fragment = (WebFragment) Fragment.instantiate(activity, WebFragment.class.getName(), args);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    setTheme(R.style.AppTheme);
    super.onCreate(savedInstanceState);
    if (savedInstanceState == null) {
        WebItem item = getIntent().getParcelableExtra(EXTRA_ITEM);
        Bundle args = new Bundle();
        args.putParcelable(WebFragment.EXTRA_ITEM, item);
        fragment = (WebFragment) Fragment.instantiate(this, WebFragment.class.getName(), args);
        getSupportFragmentManager()
                .beginTransaction()
                .add(android.R.id.content,
                        fragment,
                        WebFragment.class.getName())
                .commit();
    } else {
        fragment = (WebFragment) getSupportFragmentManager().findFragmentByTag(WebFragment.class.getName());
    }
}
 

@Override
public Fragment getItem(int position) {
    if (mFragments[position] != null) {
        return mFragments[position];
    }
    String fragmentName;
    Bundle args = new Bundle();
    args.putBoolean(LazyLoadFragment.EXTRA_EAGER_LOAD, mDefaultItem == position);
    if (position == 0) {
        args.putParcelable(ItemFragment.EXTRA_ITEM, mItem);
        args.putInt(ItemFragment.EXTRA_CACHE_MODE, mCacheMode);
        args.putBoolean(ItemFragment.EXTRA_RETAIN_INSTANCE, mRetainInstance);
        fragmentName = ItemFragment.class.getName();
    } else {
        args.putParcelable(WebFragment.EXTRA_ITEM, mItem);
        args.putBoolean(WebFragment.EXTRA_RETAIN_INSTANCE, mRetainInstance);
        fragmentName = WebFragment.class.getName();
    }
    return Fragment.instantiate(mContext, fragmentName, args);
}
 

public void initFragment(Class... fragments){
    for (int i = 0; i < fragments.length; i++) {
        Class fragment = fragments[i];
        if(!Fragment.class.isAssignableFrom(fragment))
            throw new IllegalArgumentException("类型不是frament 不能展示");
        else{
            FragmentEntity entity = new FragmentEntity();
            entity.fragment=Fragment.instantiate(frameActivity,fragment.getName());
            if((ani_in_pri!=-1||ani_out_pri!=-1)){
                entity.ani_in=ani_in_pri;
                entity.ani_out=ani_out_pri;
            }
            entity.tag=TAG+i;
            fragmentEntityList.add(entity);
        }
    }
    init=true;
}
 

private Fragment getFragment(int res) {
    FragmentManager fragmentManager = getSupportFragmentManager();
    Fragment fragment = fragmentManager.findFragmentByTag(res + "_key");
    if (fragment == null && mActualFragments.containsKey(res)) {
        fragment = Fragment.instantiate(this, Objects.requireNonNull(Objects.requireNonNull(mActualFragments.get(res)).getCanonicalName()));
    }
    return fragment;
}
 

@Override
protected final void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Fragment fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG);

    if (fragment == null) {
        fragment = Fragment.instantiate(this, PreferenceFragment.class.getName());
    }

    FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
    transaction.replace(R.id.fragment, fragment);
    transaction.commit();
}
 

@Override
protected Fragment instantiateListFragment() {
    Bundle args = new Bundle();
    setRange(Preferences.getPopularRange(this));
    args.putString(ListFragment.EXTRA_FILTER, mRange);
    args.putString(ListFragment.EXTRA_ITEM_MANAGER, AlgoliaPopularClient.class.getName());
    return Fragment.instantiate(this, ListFragment.class.getName(), args);
}
 

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    if (savedInstanceState == null) {
        Fragment fragment = Fragment.instantiate(getActivity(),
                PreferenceFragment.class.getName(), getArguments());
        getChildFragmentManager()
                .beginTransaction()
                .add(R.id.content, fragment)
                .commit();
    }
}
 

@Override
public final Fragment getItem(final int index) {
    ViewPagerItem item = items.get(index);
    Class<? extends Fragment> fragmentClass = item.getFragmentClass();
    Bundle arguments = item.getArguments();
    return Fragment.instantiate(context, fragmentClass.getName(), arguments);
}
 

private Fragment getFragment(int res) {
    FragmentManager fragmentManager = getSupportFragmentManager();
    Fragment fragment = fragmentManager.findFragmentByTag(res + "_key");
    if (fragment == null && mActualFragments.containsKey(res)) {
        fragment = Fragment.instantiate(this,
                mActualFragments.get(res).getCanonicalName());
    }
    return fragment;
}
 

@Override
protected final void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    if (getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG) == null) {
        fragment = (PreferenceFragment) Fragment
                .instantiate(this, PreferenceFragment.class.getName());
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        transaction.replace(R.id.fragment, fragment, FRAGMENT_TAG);
        transaction.commit();
    }

    initializeFloatingActionButton();
}
 

public Fragment instantiate(Context context, int position) {
  setPosition(args, position);
  return Fragment.instantiate(context, className, args);
}
 

@Override
@Nullable
public Fragment getItem(int position) {
    //Fragment fragment = (Fragment) visibleFragmentList.get(position);
    return Fragment.instantiate(context, visibleFragmentList.get(position).pluginDescription.getFragmentClass());
}
 

@Override
protected Fragment instantiateListFragment() {
    Bundle args = new Bundle();
    args.putString(FavoriteFragment.EXTRA_FILTER, mFilter);
    return Fragment.instantiate(this, FavoriteFragment.class.getName(), args);
}
 

@Override
public Fragment getItem(int position) {
    ViewPagerFragmentInfo curFragmentInfo = fragmentPagers.get(position);
    return Fragment.instantiate(mContext, curFragmentInfo.fragmentClass.getName(), curFragmentInfo.extraBundleData);
}
 

@Override
public Fragment getItem(final int position) {
    final Holder mCurrentHolder = mHolderList.get(position);
    return Fragment.instantiate(mContext,
            mCurrentHolder.mClassName, mCurrentHolder.mParams);
}
 

@Override
public Fragment getItem(int position) {
    TabInfo info = tabInfos.get(position);
    return Fragment.instantiate(context, info.fragmentClass.getName(), info.args);
}