Après avoir ajouté 4 éléments dans mon fichier menu.xml pour BottomNavigationView, il n’affiche que le titre de l’élément sélectionné et masque tous les autres titres ..__ Puis-je forcer l’affichage du titre et de l’icône. voici mon code.
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:app="http://schemas.Android.com/apk/res-auto">
<item
Android:id="@+id/action_home"
Android:enabled="true"
Android:icon="@drawable/ic_home_24dp"
Android:title="@string/text_home"
app:showAsAction="ifRoom" />
<item
Android:id="@+id/action_category"
Android:enabled="true"
Android:icon="@drawable/ic_grid_24dp"
Android:title="@string/text_category"
app:showAsAction="ifRoom" />
<item
Android:id="@+id/action_me"
Android:enabled="true"
Android:icon="@drawable/ic_me_24dp"
Android:title="@string/text_me"
app:showAsAction="ifRoom" />
<item
Android:id="@+id/action_setting"
Android:enabled="true"
Android:icon="@drawable/ic_cog_24dp"
Android:title="@string/text_setting"
app:showAsAction="ifRoom" />
</menu>
<Android.support.design.widget.BottomNavigationView
Android:id="@+id/bottom_navigation"
Android:layout_width="match_parent"
Android:layout_height="wrap_content"
Android:layout_alignParentBottom="true"
Android:background="@Android:color/white"
Android:elevation="6dp"
Android:translationZ="6dp"
app:menu="@menu/bottom_navigation_main" />
Essayez ce code,
activity_main.xml:
<LinearLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:tools="http://schemas.Android.com/tools"
xmlns:design="http://schemas.Android.com/apk/res-auto"
Android:id="@+id/activity_main"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
Android:orientation="vertical"
tools:context="com.segunfamisa.sample.bottomnav.MainActivity">
<FrameLayout
Android:id="@+id/container"
Android:layout_width="match_parent"
Android:layout_height="0dp"
Android:layout_weight="1"
Android:background="#f1f1f1">
</FrameLayout>
<Android.support.design.widget.BottomNavigationView
Android:id="@+id/navigation"
Android:layout_width="match_parent"
Android:layout_height="wrap_content"
Android:layout_gravity="start"
design:menu="@menu/bottom_nav_items" />
</LinearLayout>
fragment_menu.xml:
<RelativeLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:tools="http://schemas.Android.com/tools"
Android:id="@+id/fragment_content"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
tools:context="com.segunfamisa.sample.bottomnav.MenuFragment">
<TextView
Android:id="@+id/text"
Android:layout_width="match_parent"
Android:layout_height="wrap_content"
Android:layout_centerInParent="true"
Android:textColor="@Android:color/white"
Android:gravity="center"
/>
</RelativeLayout>
Créez ce fichier dans le dossier menu,
bottom_nav_items.xml:
<menu xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:app="http://schemas.Android.com/apk/res-auto">
<item
Android:id="@+id/action_home"
Android:enabled="true"
Android:icon="@Android:drawable/ic_dialog_map"
Android:title="One"
app:showAsAction="ifRoom"/>
<item
Android:id="@+id/action_category"
Android:enabled="true"
Android:icon="@Android:drawable/ic_dialog_info"
Android:title="Two"
app:showAsAction="ifRoom"/>
<item
Android:id="@+id/action_me"
Android:enabled="true"
Android:icon="@Android:drawable/ic_dialog_email"
Android:title="Three"
app:showAsAction="ifRoom"/>
<item
Android:id="@+id/action_setting"
Android:enabled="true"
Android:icon="@Android:drawable/ic_popup_reminder"
Android:title="Four"
app:showAsAction="ifRoom"/>
</menu>
MainActivity.Java:
public class MainActivity extends AppCompatActivity {
private static final String SELECTED_ITEM = "arg_selected_item";
private BottomNavigationView mBottomNav;
private int mSelectedItem;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mBottomNav = (BottomNavigationView) findViewById(R.id.navigation);
disableShiftMode(mBottomNav);
mBottomNav.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
selectFragment(item);
return true;
}
});
MenuItem selectedItem;
if (savedInstanceState != null) {
mSelectedItem = savedInstanceState.getInt(SELECTED_ITEM, 0);
selectedItem = mBottomNav.getMenu().findItem(mSelectedItem);
} else {
selectedItem = mBottomNav.getMenu().getItem(0);
}
selectFragment(selectedItem);
}
public static void disableShiftMode(BottomNavigationView view) {
BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
try {
Field shiftingMode = menuView.getClass().getDeclaredField("mShiftingMode");
shiftingMode.setAccessible(true);
shiftingMode.setBoolean(menuView, false);
shiftingMode.setAccessible(false);
for (int i = 0; i < menuView.getChildCount(); i++) {
BottomNavigationItemView item = (BottomNavigationItemView) menuView.getChildAt(i);
item.setShiftingMode(false);
// set once again checked value, so view will be updated
item.setChecked(item.getItemData().isChecked());
}
} catch (NoSuchFieldException e) {
//Timber.e(e, "Unable to get shift mode field");
} catch (IllegalAccessException e) {
//Timber.e(e, "Unable to change value of shift mode");
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putInt(SELECTED_ITEM, mSelectedItem);
super.onSaveInstanceState(outState);
}
@Override
public void onBackPressed() {
MenuItem homeItem = mBottomNav.getMenu().getItem(0);
if (mSelectedItem != homeItem.getItemId()) {
// select home item
selectFragment(homeItem);
} else {
super.onBackPressed();
}
}
private void selectFragment(MenuItem item) {
Fragment frag = null;
// init corresponding fragment
switch (item.getItemId()) {
case R.id.action_home:
frag = MenuFragment.newInstance(getString(R.string.text_home),
getColorFromRes(R.color.color_home));
break;
case R.id.action_category:
frag = MenuFragment.newInstance(getString(R.string.text_notifications),
getColorFromRes(R.color.color_notifications));
break;
case R.id.action_me:
frag = MenuFragment.newInstance(getString(R.string.text_search),
getColorFromRes(R.color.color_search));
break;
case R.id.action_setting:
frag = MenuFragment.newInstance(getString(R.string.text_home),
getColorFromRes(R.color.color_home));
break;
}
// update selected item
mSelectedItem = item.getItemId();
// uncheck the other items.
for (int i = 0; i < mBottomNav.getMenu().size(); i++) {
MenuItem menuItem = mBottomNav.getMenu().getItem(i);
menuItem.setChecked(menuItem.getItemId() == item.getItemId());
}
updateToolbarText(item.getTitle());
if (frag != null) {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.container, frag, frag.getTag());
ft.commit();
}
}
private void updateToolbarText(CharSequence text) {
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setTitle(text);
}
}
private int getColorFromRes(@ColorRes int resId) {
return ContextCompat.getColor(this, resId);
}
MenuFragment.Java:
public class MenuFragment extends Fragment {
private static final String ARG_TEXT = "arg_text";
private static final String ARG_COLOR = "arg_color";
private String mText;
private int mColor;
private View mContent;
private TextView mTextView;
public static Fragment newInstance(String text, int color) {
Fragment frag = new MenuFragment();
Bundle args = new Bundle();
args.putString(ARG_TEXT, text);
args.putInt(ARG_COLOR, color);
frag.setArguments(args);
return frag;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_menu, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// retrieve text and color from bundle or savedInstanceState
if (savedInstanceState == null) {
Bundle args = getArguments();
mText = args.getString(ARG_TEXT);
mColor = args.getInt(ARG_COLOR);
} else {
mText = savedInstanceState.getString(ARG_TEXT);
mColor = savedInstanceState.getInt(ARG_COLOR);
}
// initialize views
mContent = view.findViewById(R.id.fragment_content);
mTextView = (TextView) view.findViewById(R.id.text);
// set text and background color
mTextView.setText(mText);
mContent.setBackgroundColor(mColor);
}
@Override
public void onSaveInstanceState(Bundle outState) {
outState.putString(ARG_TEXT, mText);
outState.putInt(ARG_COLOR, mColor);
super.onSaveInstanceState(outState);
}
}
tout ce que vous devez faire est simplement de désactiver le mode Shift BottomNavigationView, en utilisant cette méthode dans votre code.
public static void disableShiftMode(BottomNavigationView view) {
BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
try {
Field shiftingMode = menuView.getClass().getDeclaredField("mShiftingMode");
shiftingMode.setAccessible(true);
shiftingMode.setBoolean(menuView, false);
shiftingMode.setAccessible(false);
for (int i = 0; i < menuView.getChildCount(); i++) {
BottomNavigationItemView item = (BottomNavigationItemView) menuView.getChildAt(i);
item.setShiftingMode(false);
// set once again checked value, so view will be updated
item.setChecked(item.getItemData().isChecked());
}
} catch (NoSuchFieldException e) {
//Timber.e(e, "Unable to get shift mode field");
} catch (IllegalAccessException e) {
//Timber.e(e, "Unable to change value of shift mode");
}
}
appelez cette méthode comme ça,
mBottomNav = (BottomNavigationView) findViewById(R.id.navigation);
disableShiftMode(mBottomNav);
Cela fonctionnera. Je joins la capture d’écran ici,
C'est simplement comme ça:
Kotlin
bottomNavigationView.labelVisibilityMode=LabelVisibilityMode.LABEL_VISIBILITY_LABELED
Java
bottomNavigationView.setLabelVisibilityMode(LabelVisibilityMode.LABEL_VISIBILITY_LABELED)
Au-dessus de celui-ci, je trouve une solution un peu plus longue à ce problème. J'ai eu une solution plus simple pour cela.
Ajoutez cette classe dans votre application:
class BottomNavigationViewHelper {
@SuppressLint("RestrictedApi")
public static void removeShiftMode(BottomNavigationView view) {
BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
try {
Field shiftingMode = menuView.getClass().getDeclaredField("mShiftingMode");
shiftingMode.setAccessible(true);
shiftingMode.setBoolean(menuView, false);
shiftingMode.setAccessible(false);
for (int i = 0; i < menuView.getChildCount(); i++) {
BottomNavigationItemView item = (BottomNavigationItemView) menuView.getChildAt(i);
item.setShiftingMode(false);
// set once again checked value, so view will be updated
item.setChecked(item.getItemData().isChecked());
}
} catch (NoSuchFieldException e) {
Log.e("ERROR NO SUCH FIELD", "Unable to get shift mode field");
} catch (IllegalAccessException e) {
Log.e("ERROR ILLEGAL ALG", "Unable to change value of shift mode");
}
}
}
puis ajoutez ceci dans votre activité où bottomnavigationview est disponible
BottomNavigationViewHelper.removeShiftMode(bottomNavigationView);//disable BottomNavigationView shift mode
Cela désactivera le mode de navigation de navigation et le texte et l'icône seront toujours affichés.
après la bibliothèque de support 28.0.0, supportez LabelVisibilityMode.
xml config: app: labelVisibilityMode = "libellé"
<Android.support.design.widget.BottomNavigationView
Android:id="@+id/bottom_navigation"
Android:layout_width="match_parent"
Android:layout_height="wrap_content"
Android:layout_margin="0dp"
Android:background="?bottom_tint_color"
app:elevation="@dimen/padding_4"
app:labelVisibilityMode="labeled"
app:itemIconTint="?drawer_tint_color"
app:itemTextColor="?drawer_tint_color"
app:menu="@menu/bottom_navigation_lite"/>
ou
tu peux appeler :
BottomNavigationView.setLabelVisibilityMode(LabelVisibilityMode.LABEL_VISIBILITY_LABELED);
Cela fonctionne pour moi:
navigation = (BottomNavigationView) view.findViewById(R.id.bottom_navigation);
try{disableShiftMode(navigation);}catch(Exception ew){}
Créez cette méthode dans votre activité ou votre fragment où vous souhaitez appeler:
@SuppressLint("RestrictedApi")
public static void disableShiftMode(BottomNavigationView view) {
BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
try {
Field shiftingMode = menuView.getClass().getDeclaredField("mShiftingMode");
shiftingMode.setAccessible(true);
shiftingMode.setBoolean(menuView, false);
shiftingMode.setAccessible(false);
for (int i = 0; i < menuView.getChildCount(); i++) {
BottomNavigationItemView item = (BottomNavigationItemView) menuView.getChildAt(i);
item.setShiftingMode(false);
item.setChecked(item.getItemData().isChecked());
}
} catch (NoSuchFieldException e) {
} catch (IllegalAccessException e) {
}
}