Kotlin中按钮状态的不同背景 [英] Different background for a button's states in Kotlin

问题描述

我的项目中有一个按钮，其工作方式如下:

I have a button in my project that works like this:

每种状态下按钮都有3种不同的设计-禁用( state_enabled ="false" )，启用，按下.

The button has 3 different designs for each state - disabled (state_enabled="false"), enabled, pressed.

如果未选择文件，则该按钮保持禁用状态，并且具有特定的设计.尽管在选择文件时此按钮将变为启用状态并切换到其他设计.每次启用并按下该按钮时，都可以看到该按钮的突出显示颜色.

This button remains disabled if no file is selected, and has a particular design for it. Although, when file is selected, this button becomes enabled and switches to a different design. And the button's highlight color is possible to see every time when the button is enabled and pressed.

到目前为止我尝试过的:

What I have tried so far:

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

    <item android:drawable="@drawable/background_blue" android:state_enabled="true" />
    <item android:drawable="@drawable/background_blue_white" android:state_enabled="false" />
    <item android:drawable="@drawable/background_green" android:state_pressed="true" />

</selector>

我想拥有的是:

1. 已禁用:-表示除非选择了文件，否则无法单击它.

1. Disabled: - means I can't click on it unless I have a file selected.

已启用:-表示我已选择一个文件.

Enabled: - means I have selected a file.

按下:-表示是否启用了该按钮并且我按下了该按钮.

Pressed: - means if the button is enabled and I press on it.

state_enabled ="false" 和 state_enabled ="true" 正常工作，而 state_pressed ="true" 不适用于全部.您认为我做错了什么?

state_enabled="false" and state_enabled="true" work just fine, whereas state_pressed="true" doesn't work at all. What do you think I am doing wrong?

请让我知道我的解释是否复杂-我会尽力描述问题，以使其尽可能地易于理解.非常感谢.祝你今天过得愉快！

Please, let me know if my explanations are complicated - I will do my best to describe the problem to make it be as understandable as possible. Thank you so much. Have a nice day!

推荐答案

您应该为此设置按钮 clickable .

您可以使用 button.setClickable(true)(如果您使用的是JAVA)来制作它，也可以在 .xml 中添加 android:clickable ="true" .

You can make it with button.setClickable(true)(If you are using JAVA) or you can add in your .xml where you have android:clickable="true".

如果您使用的是Kotlin，请添加 button.clickable = true ，而不是第一个使用Java代码的解决方案.

If you are using Kotlin then add button.clickable = true instead of the first solution with Java code.

更新:您也应该尝试此操作.遵循此答案可能会有所帮助.根据该答案，您应该使所有状态保持正确的顺序.我不知道为什么，但是我认为这应该有所帮助.

Update: You should try a this thing as well. Follow this answer might be helpful. As per that answer, you should keep all states into proper order. I don't know why but I think it should help.

尝试一下，让我知道它是否对您有帮助.谢谢&祝您编码愉快！！

Try this and let me know if it will help you. Thanks & Happy coding..!

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