Android:使用倾斜的角绘制形状 [英] Android: Draw shape with skewed corner

问题描述

我想为按钮使用背景.但是，当我使用png时，它会使应用程序变慢.因此，我想使用xml形状，但不知道如何切角(如图片所示).

I want to use a background for my buttons. But when I use a png it slows down the app. Therefore I want to use a xml shape but I do not know how to make the corner cut (like on the picture).

现在，我具有以下只是矩形的形状:

By now I have the following shape which is just a rectangle:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@color/blue_semi_transparent"/>
    <padding android:bottom="10dp" android:right="10dp" android:top="10dp" android:left="10dp"/>
    <margin android:bottom="10dp" android:right="10dp" android:top="10dp" android:left="10dp"/>
</shape>

如何绘制右下角?

推荐答案

您可以尝试一下，

skewed_background.xml

skewed_background.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <item>
        <shape android:shape="rectangle" >


            <solid android:color="#3F8EEB" />
        </shape>
    </item>
    <item>
        <rotate
            android:fromDegrees="110"
            android:pivotX="90%"
            android:pivotY="90%"
            >
            <shape android:shape="rectangle" >
                <solid android:color="#FFF" />
            </shape>
        </rotate>
    </item>

</layer-list>

sample_layout.xml

sample_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    android:orientation="vertical" >

    <View
        android:layout_width="200dp"
        android:layout_height="50dp"
        android:background="@drawable/triangle1"/>

</LinearLayout>

如果要修改倾斜区域，只需更改skewed_background.xml第二项中的fromDegrees，pivotX和ivotY值即可.

If you want to modify the skewed area you just need to change the value of fromDegrees, pivotX and pivotY value in the second item in skewed_background.xml.

这篇关于Android:使用倾斜的角绘制形状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！