setOnNavigationItemSelectedListener deprecated

android java bottombar

2022-09-01 00:23:50

目前，我正在开发一个应用程序，该应用程序具有具有三个菜单项的底部导航栏。我用于被点击的项目。但现在我面临着该方法已贬值的问题。setOnNavigationItemSelectedListener()

应用语言：Java
问题：'setOnNavigationItemSelectedListener(com.google.android.material.bottomnavigation.BottomNavigationView.OnNavigationItemSelectedListener)' is deprecated

有什么办法可以解决它吗？是有没有比方法更好的选择。setOnNavigationItemSelectedListener()

答案 1

根据github来源，它已弃用：BottomNavigationView.setOnNavigationItemSelectedListener

在其评论中，您可以阅读：

@deprecated Use {@link NavigationBarView#setOnItemSelectedListener(OnItemSelectedListener)}
   *     instead.

因此，从其基类中使用NavigationBarView.setOnItemSelectedListener：

  /**
   * Set a listener that will be notified when a navigation item is selected. This listener will
   * also be notified when the currently selected item is reselected, unless an {@link
   * OnItemReselectedListener} has also been set.
   *
   * @param listener The listener to notify
   * @see #setOnItemReselectedListener(OnItemReselectedListener)
   */
  public void setOnItemSelectedListener(@Nullable OnItemSelectedListener listener) {
    selectedListener = listener;
  }

另请参阅此提交

因为它解释了关于此更改的混淆：

侦听器被弃用以支持和，但从未添加弃用文档，因此不清楚开发人员应该使用什么来代替。NavigationBarView#OnItemSelectedListenerNavigationBarView#OnItemReselectedListener

答案 2

你可以试试。它的工作原理与[在android 11中测试]相同setonItemSelectedListenersetOnNavigationItemSelectedListener()

bnv.setOnItemSelectedListener(new NavigationBarView.OnItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            int id = item.getItemId();
            switch(id){
              //check id
            }
            return true;
        }
    });

Kotlin：

bnv.setOnItemSelectedListener { item ->
            when (item.itemId) {
            }
            true
        }