使用EditText的BottomSheet

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
import androidx.appcompat.app.AppCompatActivity;
import com.google.android.material.bottomsheet.BottomSheetDialog;

public class MainActivity extends AppCompatActivity {

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

        findViewById(R.id.btn_show_bottom_sheet).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showBottomSheet();
            }
        });
    }

    private void showBottomSheet() {
        BottomSheetDialog bottomSheetDialog = new BottomSheetDialog(this);
        View bottomSheetView = LayoutInflater.from(this).inflate(R.layout.bottom_sheet_layout, null);
        EditText editText = bottomSheetView.findViewById(R.id.edit_text);

        bottomSheetDialog.setContentView(bottomSheetView);
        bottomSheetDialog.show();
    }
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <Button
        android:id="@+id/btn_show_bottom_sheet"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Bottom Sheet" />
</RelativeLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="16dp">

    <EditText
        android:id="@+id/edit_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter text here" />
</LinearLayout>

editText.requestFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);