如何在运行时禁用AlertDialog的正按钮？

// 创建AlertDialog
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Dialog 标题");
builder.setMessage("Dialog 的内容");

// 创建按钮
builder.setPositiveButton("禁用", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
        // 禁用按钮
        dialogInterface.dismiss();
    }
});

// 获取按钮的ID
int buttonId = builder.getButton(AlertDialog.BUTTON_POSITIVE).getId();

// 创建按钮并禁用
builder.setNegativeButton("禁用", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
        // 禁用按钮
        dialogInterface.dismiss();
    }
});
builder.setNeutralButton("禁用", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
        // 禁用按钮
        dialogInterface.dismiss();
    }
});

// 获取按钮的ID
buttonId = builder.getButton(AlertDialog.BUTTON_NEUTRAL).getId();

// 创建按钮并禁用
builder.setPositiveButton("禁用", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
        // 禁用按钮
        dialogInterface.dismiss();
    }
});

// 获取按钮的ID
buttonId = builder.getButton(AlertDialog.BUTTON_POSITIVE).getId();

// 创建按钮并禁用
builder.setNegativeButton("禁用", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
        // 禁用按钮
        dialogInterface.dismiss();
    }
});

// 获取按钮的ID
buttonId = builder.getButton(AlertDialog.BUTTON_NEUTRAL).getId();

// 创建按钮并禁用
builder.setPositiveButton("禁用", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
        // 禁用按钮
        dialogInterface.dismiss();
    }
});

// 获取按钮的ID
buttonId = builder.getButton(AlertDialog.BUTTON_POSITIVE).getId();

// 禁用按钮
builder.getButton(buttonId).setEnabled(false);

// 创建AlertDialog
AlertDialog alertDialog = builder.create();

// 显示AlertDialog
alertDialog.show();