上一篇介紹了AlterDialog的基本用法，今天來介紹AlterDialog的延伸用法。
第一種是條列式的點選對話框

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    Button button;
    String[] strings ={"第二天" , "第四天" , "第六天" , "第八天" , "第十天"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = findViewById(R.id.button);
        button.setOnClickListener(MainActivity.this);
    }

    @Override
    public void onClick(View view) {
        getDialog();
    }

    private void getDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
        builder.setCancelable(false);
        builder.setTitle("IT鐵人賽");
        builder.setItems(strings, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                button.setText(strings[i]);
            }
        });
        builder.create().show();
    }
}

成果如下

第二種是選擇式對話框

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    Button button;
    String[] strings ={"第二天" , "第四天" , "第六天" , "第八天" , "第十天"};
    int index;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = findViewById(R.id.button);
        button.setOnClickListener(MainActivity.this);
    }

    @Override
    public void onClick(View view) {
        getDialog();
    }

    private void getDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
        builder.setCancelable(false);
        builder.setTitle("IT鐵人賽");
        builder.setSingleChoiceItems(strings,0, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                index = i;
            }
        });
        builder.setPositiveButton("確定" , new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                button.setText(strings[index]);
                dialogInterface.dismiss();
            }
        });
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                dialogInterface.dismiss();
            }
        });
        builder.create().show();
    }
}