如何为按钮创建自定义形状 [英] How to create a custom shape for a Button

问题描述

如何为按钮创建自定义形状？我可以在许多情况下为按钮背景色设置不同的颜色。谢谢您的帮助。谢谢。

我可以将其他颜色设置为

是的，您可以在运行时进行更改。为此，您必须为每个项目分配ID，以知道要在哪里进行更改。就像我在回答代码上所做的一样。

  LayerDrawable layerDrawable =（LayerDrawable）ContextCompat.getDrawable（Your_Activity.this，R.drawable。 your_shape_test）; 
 GradientDrawablegradientDrawable =（GradientDrawable）layerDrawable.findDrawableByLayerId（R.id.id_of_drawable-one）; 
 gradientDrawable.setColor（your_color）; 
  

How to create a custom shape for a Button? Can I set different colors to button background colors for many conditions.Any help will be appreciated.Thanks.

解决方案

How to create a custom shape for a Button?

Create a test.xml file in drawable and add code:

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

<item android:id="@+id/one">       //<---- id is must for color change
    <shape android:shape="rectangle">
        <size
            android:width="150dp"
            android:height="40dp" />
        <solid android:color="@color/colorPrimary" />
        <corners android:radius="10dp"/> //<---- remove radius if not needed
    </shape>
</item>

<item
    android:top="10dp"
    android:bottom="-12dp"
    android:left="-55dp"
    android:width="75dp">
    <rotate
        android:fromDegrees="-47">
        <shape android:shape="rectangle">
            <solid android:color="#ffffff" />
        </shape>
    </rotate>
</item>
</layer-list>

In button:

     <Button
        .....
        android:background="@drawable/test"
        ...../>

Output

Can I set different colors to button background colors for many conditions?

Yes, you can change at run-time. For that you have to assign id to each item to know where you want to make changes. As I did on my answer code.

LayerDrawable layerDrawable = (LayerDrawable) ContextCompat.getDrawable(Your_Activity.this, R.drawable.your_shape_test);
GradientDrawable gradientDrawable = (GradientDrawable) layerDrawable.findDrawableByLayerId(R.id.id_of_drawable-one);
gradientDrawable.setColor(your_color);

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