以下是一个使用Android AnyChart库和BottomNavigationView切换图表的解决方法：

1. 在build.gradle文件中添加AnyChart库的依赖项：

implementation 'com.anychart:AnyChart-Android:1.1.2'

2. 在XML布局文件中添加一个BottomNavigationView和一个FrameLayout作为容器来放置图表：

3. 创建一个Fragment来显示图表：

import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import com.anychart.AnyChart;
import com.anychart.AnyChartView;
import com.anychart.chart.common.dataentry.DataEntry;
import com.anychart.chart.common.dataentry.ValueDataEntry;
import com.anychart.charts.Pie;
import java.util.ArrayList;
import java.util.List;

public class ChartFragment extends Fragment {

    private AnyChartView anyChartView;

    public static ChartFragment newInstance() {
        ChartFragment fragment = new ChartFragment();
        return fragment;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_chart, container, false);
        anyChartView = view.findViewById(R.id.anyChartView);
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        setupChart();
    }

    private void setupChart() {
        Pie pie = AnyChart.pie();
        List data = new ArrayList<>();
        data.add(new ValueDataEntry("Apples", 15));
        data.add(new ValueDataEntry("Bananas", 10));
        data.add(new ValueDataEntry("Cherries", 5));
        pie.data(data);
        anyChartView.setChart(pie);
    }
}

4. 创建一个用于切换图表的MainActivity：

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import android.os.Bundle;
import android.view.MenuItem;
import com.google.android.material.bottomnavigation.BottomNavigationView;

public class MainActivity extends AppCompatActivity {

    private BottomNavigationView bottomNavigationView;

    private ChartFragment chartFragment;
    private AnotherChartFragment anotherChartFragment;

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

        bottomNavigationView = findViewById(R.id.bottomNavigationView);
        bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
                switch (menuItem.getItemId()) {
                    case R.id.action_chart:
                        switchFragment(chartFragment);
                        return true;
                    case R.id.action_another_chart:
                        switchFragment(anotherChartFragment);
                        return true;
                    default:
                        return false;
                }
            }
        });

        chartFragment = ChartFragment.newInstance();
        anotherChartFragment = AnotherChartFragment.newInstance();

        switchFragment(chartFragment);
    }

    private void switchFragment(Fragment fragment) {
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.chartContainer, fragment)
                .commit();
    }
}

5. 创建另一个Fragment来显示另一个图表（如果需要）。

请确保在res/menu文件夹中创建一个名为bottom_navigation_menu的菜单文件，其中包含用于切换图表的菜单项。

这样，当用户通过BottomNavigationView切换菜单项时，将会切换到相应的图表。