如何以编程方式更改渐变的startColor属性-Android [英] How to programatically change the startColor attribute of gradient - Android

问题描述

我有一个正在布局中使用的形状.我希望在活动中以编程方式更改颜色.

I have a shape that I'm using in a layout. I want the color to be programmatically changed in my activity.

<shape android:id="@+id/shape1" xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> 
   <gradient android:id="@+id/gradient1"
        android:startColor="@color/widget_header"
        android:endColor="#0000CC" 
        android:angle="270"/> 

   <corners android:bottomRightRadius="1dp"
        android:bottomLeftRadius="1dp" 
        android:topLeftRadius="7dp"
        android:topRightRadius="7dp"/> 
</shape>

有什么办法可以更改我的Activity中的"startColor"和"endColor"属性?

Is there any way I could change the "startColor" and "endColor" attributes in my Activity?

推荐答案

检查

Check this out, there's quite a bit of additional code but it seems to demonstrate how to create a drawable and gradient drawable in code... look around line 159. You may not need to create the shape in XML as you will probably need to progmatically create the shape etc

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