Dialog.setTitle不显示标题 [英] Dialog.setTitle not showing a title

问题描述

我正在尝试向对话框中添加自定义标题，但是，每当我运行应用程序时，它都不会显示标题.

I am trying to add a custom title to my Dialog, however whenever I run my application it doesn't show a title.

我创建对话框的代码是

 final Dialog passwordDialog = new Dialog(this);
 passwordDialog.setContentView(R.layout.admin_password_dialog);
 passwordDialog.setTitle("Enter An Administrative Password");
 passwordDialog.show();

我的布局文件是

<?xml version="1.0" encoding="utf-8"?>
<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_confirmPassword"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentEnd="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentStart="true"
    android:layout_below="@+id/edit_adminPassword"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:text="@string/confirmPassword"/>

<EditText
    android:id="@+id/edit_adminPassword"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentEnd="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentStart="true"
    android:layout_alignParentTop="true"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:ems="10"
    android:inputType="textPassword"/>

这就是我要得到的

有什么我想念的吗?

推荐答案

您应该这样定义自己的样式:

you should define your style like this:

 <style name="Dialog" parent="Theme.AppCompat.Dialog">
    <item name="android:windowNoTitle">false</item>
    <item name="android:windowIsFloating">true</item>
</style>

，然后将此样式传递给Dialog的构造器

and then pass this style to the constructor of the Dialog

final Dialog passwordDialog = new Dialog(this,R.style.Dialog);

这篇关于Dialog.setTitle不显示标题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！