以编程方式将以下代码 xml 创建到 layerlist android

Question

我必须为许多不同颜色的视图设置背景。但是如果我这样做，xml将是大约20个文件，这是巨大的，所以我想将以下xmllayer-list转换为完全独立的模块，甚至没有一个xml，这样它就可以重复使用，请帮帮我。

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    //i can create this drawable
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#ff2632"/>
        </shape> </item>

    //I don't know how to achieve this one, especially this "bottom property"
    <item android:bottom="2dp">
        <shape android:shape="rectangle">
            <solid android:color="#d7ffa2"/>
        </shape> </item>
</layer-list>

Answer 1

请找到以下代码，

// This is the first item in your XML file
GradientDrawable layer1 = new GradientDrawable();
layer1.setShape(GradientDrawable.RECTANGLE);
layer1.setColor(Color.parseColor("#ff2632"));

// This is your second item in your XML file
GradientDrawable layer2 = new GradientDrawable();
layer2.setShape(GradientDrawable.RECTANGLE);
layer2.setColor(Color.parseColor("#d7ffa2"));

// This will give the bottom space which you are unable to do    
InsetDrawable insetLayer2 = new InsetDrawable(layer2, 0, 0, 0, 2);

// This is the final drawable which is to be used
LayerDrawable layerDrawable = new LayerDrawable(new Drawable[]{layer1, insetLayer2});

参考这个，如有问题请告诉我。