自定义对话框大小以匹配Theme.Holo.Light.Dialog

Question

如果我有一个将其主题设置为的活动Theme.Holo.Light.Dialog,它将扩展得很好.它几乎完全以纵向模式填充在手机屏幕上,但在横向模式下,它不会长时间不合理地伸展.例如,在Google的这张图片中,您可以看到对话框没有填满整个屏幕.

它不会崩溃以匹配标题的宽度,如果你有一个扩展Dialog类的类有你自己的Dialog构建会发生什么.

这是我的布局会发生的事情.

我需要将哪些属性应用于LinearLayout以使其扩展得相当漂亮？

Answer 1

您可以使用Theme.Holo.Light.Dialog.MinWidth正确调整布局大小.

从文档:

public static final int Theme_Holo_Light_Dialog_MinWidth

Theme.Holo.Light.Dialog的变体,具有常规对话框的最小宽度.

使用它的方法是通过将ContextThemeWrapper代替Context(使用它)传递给自定义Dialog的构造函数:

YourCustomDialog cDialog = new YourCustomDialog(
                        new ContextThemeWrapper(this, 
                              android.R.style.Theme_Holo_Light_Dialog_MinWidth));

这是如何Theme.Holo.Light.Dialog.MinWidth定义的:

<style name="Theme.Holo.Light.Dialog.MinWidth">
    <item name="android:windowMinWidthMajor">@android:dimen/dialog_min_width_major</item>
    <item name="android:windowMinWidthMinor">@android:dimen/dialog_min_width_minor</item>
</style>

来自dimens.xml:

@android:扪/ dialog_min_width_major:

<!-- The platform's desired minimum size for a dialog's width when it
     is along the major axis (that is the screen is landscape).  This may
     be either a fraction or a dimension. -->
<item type="dimen" name="dialog_min_width_major">65%</item>

@android:扪/ dialog_min_width_minor:

<!-- The platform's desired minimum size for a dialog's width when it
     is along the minor axis (that is the screen is portrait).  This may
     be either a fraction or a dimension. -->
<item type="dimen" name="dialog_min_width_minor">95%</item>

看起来,您发布的图片中对话框的宽度约为65%.在肖像模式中,它将是95%.

老实说,在纵向模式下宽度看起来不像95%,但它比以前更好:):