Java Android - 无法创建简单的矩形形状... UnsupportedOperationException？
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Android - Can't create simple rectangle shape... UnsupportedOperationException?
提问by RyanM
I'm having trouble creating a simple rounded rectangle using XML. Every time I try to add the "corners" element to the custom shape I get:
我在使用 XML 创建简单的圆角矩形时遇到问题。每次我尝试将“角”元素添加到自定义形状时，我都会得到：
java.lang.UnsupportedOperationException at android.graphics.Path.addRoundRect(Path.java:514) at android.graphics.drawable.GradientDrawable.draw(GradientDrawable.java:314) at android.view.View.draw(View.java:6520) ...
java.lang.UnsupportedOperationException at android.graphics.Path.addRoundRect(Path.java:514) at android.graphics.drawable.GradientDrawable.draw(GradientDrawable.java:314) at android.view.View.draw(View.java:第6520章 ……
res/dawable/rounded_rectangle.xml:
res/dawable/rounded_rectangle.xml:
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="#ffffff"/>
<stroke android:width="3dp"
android:color="#ff000000"/>
<padding android:left="1dp"
android:top="1dp"
android:right="1dp"
android:bottom="1dp"/>
<corners android:bottomRightRadius="7dp" android:bottomLeftRadius="7dp"
android:topLeftRadius="7dp" android:topRightRadius="7dp"/>
</shape>
simple layout.xml using the above shape:
使用上述形状的简单 layout.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<View android:id="@+id/View01"
android:background="@drawable/rounded_rectangle"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</View>
</RelativeLayout>
Fyi, I'm trying to compile for Android 2.1 and I have all the latest updates installed to Eclipse and the Android SDK. This shape is a direct copy of something I saw on another website, but for some reason It doesn't want to work for me.
仅供参考，我正在尝试针对 Android 2.1 进行编译，并且我已将所有最新更新安装到 Eclipse 和 Android SDK。这个形状是我在另一个网站上看到的东西的直接副本，但由于某种原因它不想为我工作。
Thanks.
谢谢。
采纳答案by RyanM
So, I was just playing around with this a bit and I changed a couple of lines in the rounded_rectangle.xml to get it working. See below:
所以，我只是在玩这个，我在 rounded_rectangle.xml 中更改了几行以使其正常工作。见下文：
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="#ffffff"/>
<stroke android:width="3dp"
android:color="#ff000000"/>
<padding android:left="1dp"
android:top="1dp"
android:right="1dp"
android:bottom="1dp"/>
<corners android:radius="30dp"/>
</shape>
I only wish Google would put out a proper reference doc for creating XML-based shapes. After hours (4+) of hunting down examples on the Web, I feel like it's still a guessing game as to what elements/attributes are supported in these types of XML documents. Sorry for the mini-rant.
我只希望谷歌能够发布一个适当的参考文档来创建基于 XML 的形状。经过数小时 (4+) 小时在 Web 上寻找示例后，我觉得对于这些类型的 XML 文档中支持哪些元素/属性仍然是一个猜谜游戏。对不起，小咆哮。
I hope this helps someone else.
我希望这对其他人有帮助。
