小编Nar*_*C.R的帖子

24
推荐指数
5
解决办法
2万
查看次数

如何动态更改底部导航项文本?

在此输入图像描述

我正在努力实现上述设计。我可以更改图标,但无法更改底部文本。我使用材质底部导航栏

我通过为每个图标实现单独的选择器可绘制对象来实现图标更改。有什么方法可以对导航标题做同样的事情吗?

MainActivity.class

public class MainActivity extends AppCompatActivity {
BottomNavigationView navView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    navView = findViewById(R.id.nav_view);

    // Passing each menu ID as a set of Ids because each
    // menu should be considered as top level destinations.
    AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
            R.id.navigation_home, R.id.navigation_saved, R.id.navigation_applied, R.id.navigation_profile, R.id.navigation_more)
            .build();

    NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
    NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
    NavigationUI.setupWithNavController(navView, navController);



}
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活动主文件

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingTop="?attr/actionBarSize">

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/nav_view"
        android:layout_width="0dp"
        android:layout_height="wrap_content" …
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android material-design bottomnavigationview android-bottomnav android-bottom-nav-view

9
推荐指数
1
解决办法
7642
查看次数