我有 2 個(gè)活動(dòng)。一是AlertDialogActivity& 二是MainActivity。我AlertDialogActivity在MainActivity.像這樣public class MainActivity extends AlertDialogActivity現(xiàn)在如何覆蓋AlertDialogActivity我的方法MainActivity？警報(bào)對(duì)話(huà)活動(dòng)：package com.jimmytrivedi.alertdialog;import android.app.AlertDialog;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.widget.EditText;import android.widget.TextView;import androidx.appcompat.app.AppCompatActivity;public class AlertDialogActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_alert_dialog);        showAlertDialog(AlertDialogActivity.this);    }    private void showAlertDialog(final Context context) {        // 1. Instantiate an <code><a href="/reference/android/app/AlertDialog.Builder.html">AlertDialog.Builder</a></code> with its constructor        AlertDialog.Builder builder = new AlertDialog.Builder(AlertDialogActivity.this);// 2. Chain together various setter methods to set the dialog characteristics        builder.setMessage("How are you?")                .setTitle("Hello");// 3. Get the <code><a href="/reference/android/app/AlertDialog.html">AlertDialog</a></code> from <code><a href="/reference/android/app/AlertDialog.Builder.html#create()">create()</a></code>        AlertDialog dialog = builder.create();        dialog.show();    }}