Android：如何使用滚动标题创建对话框？ [英] Android: How to create a Dialog with a Scrolling title?

问题描述

好，所以我已经阅读了And Dev网站上的自定义对话框说明
http://developer.android.com/guide/topics/ui/dialogs.html#CustomDialog

它显示如何做一个自定义对话框，但不是如何自定义标题！

基本上我的标题太长，我想要滚动（如textview）或更好还是有一个'b'b
$ b

或者如果我无法使它滚动，给它更多的空间来包装更多的行！

任何想法，我不会抱有很大的希望，因为它不是在android.dev： - （

解决方案

Customizig窗口（从而也是对话框）的标题可以通过请求窗口功能CUSTOM_TITLE来完成，CUSTOM_TITLE必须在setContentView之前完成。

所以在对话框中/ Activity子类onCreate（），调用如下：

  super.onCreate（savedInstance）; 
 requestWindowFeature（Window.FEATURE_CUSTOM_TITLE）; //<  - 插入此
  

然后，之后您的setContentView，do这个：

  setContentView（R.layout.main）; 
 getWindow（）。setFeatureInt（Window.FEATURE_CUSTOM_TITLE，R.layout.custom_title）; //<  - 插入此
  

布局通常可以包含任何您想要的。
对于大理石文本控件。例如这样做：

layout / custom_title.xml：

  FrameLayout android：id =@ + id / FrameLayout01
 android：layout_width =fill_parent
 android：layout_height =fill_parent
 xmlns：android =http://schemas.android .com / apk / res / android
> 
< TextView android：id =@ + id / caption_text
 android：layout_height =wrap_content
 android：layout_width =fill_parent
 android：text =This是一个非常长的文本，不适合定期的标题，所以它将显示使用大括号...
 android：lines =1
 android：focusable =true
 android：focusableInTouchMode =true
 android：scrollHorizo​​ntally =true
 android：marqueeRepeatLimit =marquee_forever
 android：ellipsize =marquee
>< / TextView的> 
< / FrameLayout> 
  

由于选框功能的某些限制，文本视图必须可对焦，重点关注滚动（最初应该是滚动）。

Ok so I've read the Custom Dialog explanation on the And Dev website http://developer.android.com/guide/topics/ui/dialogs.html#CustomDialog

It show's you how to make a custom dialog, but not how to customise the title!

Basically my title is too long and I want it to scroll (like textview) or better still have a 'marquee' effect i think it's called.

Or if I can't make it scroll, give it more space to wrap onto more lines!

Any ideas, I don't hold out much hope as it's not on android.dev :-(

解决方案

Customizig window (and thus also dialog) titles can be done by requesting the window feature CUSTOM_TITLE, which must be done before setContentView.

So in your Dialog / Activity subclasses onCreate(), call the following:

super.onCreate(savedInstance);
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); // <- insert this

Then, after your setContentView, do this:

setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title); // <- insert this

The layout can generally contain anything you want. For a marquee text control. e.g. do this:

layout/custom_title.xml:

<FrameLayout android:id="@+id/FrameLayout01" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    xmlns:android="http://schemas.android.com/apk/res/android"
    >
    <TextView android:id="@+id/caption_text" 
        android:layout_height="wrap_content" 
        android:layout_width="fill_parent" 
        android:text="This is a very very long text that will not fit into a caption regularly, so it will be displayed using marquee..." 
        android:lines="1"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:scrollHorizontally="true" 
        android:marqueeRepeatLimit="marquee_forever" 
        android:ellipsize="marquee"
        ></TextView>
</FrameLayout>

Due to some constraints with the marquee feature, the text view has to be made focusable and it will only be scrolling when focused (which it initially should be).

这篇关于Android：如何使用滚动标题创建对话框？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！