我查看了stackoverflow，并找到了有关如何从默认设置中删除动画的解决方案bottom navigation.
现在我需要从底部导航中删除标题。我在底部导航xml文件的标题中设置了空字符串，但它不会改变图像的位置。我正在使用 v27
bottom navigation.删除文本后，我需要将图像居中。
这是我的代码。
//OnCreate
BottomNavigationViewHelper.removeShiftMode(bottomNavigationView);
MainActivity 中的静态类
public static 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);
//noinspection RestrictedApi
item.setShiftingMode(false);
// set once again checked value, so view will be updated
//noinspection RestrictedApi
item.setChecked(item.getItemData().isChecked());
}
} catch (NoSuchFieldException e) {
Log.e("BottomNav", "Unable to get shift mode field", e);
} catch (IllegalAccessException e) {
Log.e("BottomNav", "Unable to change value of shift mode", e);
}
}
}
我使用以下代码的变体来自定义BottomNavigationView基本上是 TextViews的标签：
private void removeBottomNavigationLabels(BottomNavigationView bottomNavigationView) {
for (int i = 0; i < bottomNavigationView.getChildCount(); i++) {
View item = bottomNavigationView.getChildAt(i);
if (item instanceof BottomNavigationMenuView) {
BottomNavigationMenuView menu = (BottomNavigationMenuView) item;
for (int j = 0; j < menu.getChildCount(); j++) {
View menuItem = menu.getChildAt(j);
View small = menuItem.findViewById(android.support.design.R.id.smallLabel);
if (small instanceof TextView) {
((TextView) small).setVisibility(View.GONE);
}
View large = menuItem.findViewById(android.support.design.R.id.largeLabel);
if (large instanceof TextView) {
((TextView) large).setVisibility(View.GONE);
}
}
}
}
BottomNavigationMenuView menuView = (BottomNavigationMenuView) bottomNavigationView.getChildAt(0);
for (int i = 0; i < menuView.getChildCount(); i++) {
final View iconView = menuView.getChildAt(i).findViewById(android.support.design.R.id.icon);
iconView.setPadding(0, 40, 0, 0);
ViewGroup.LayoutParams layoutParams = iconView.getLayoutParams();
DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
layoutParams.height = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 32, displayMetrics);
layoutParams.width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 32, displayMetrics);
iconView.setLayoutParams(layoutParams);
}
}
你可以这样称呼它：
removeBottomNavigationLabels(yourBottomNavigationView);
您也可以尝试类似地更改 TextViews 的可见性、填充或高度。
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