Android-在自定义EditText上捕获退格键(删除)按钮 [英] Android - catch backspace (delete) button on custom EditText

问题描述

我想在EditText定制上的软键盘中捕获退格/删除按钮事件.

I want to catch the backspace/delete button event in soft keyboard on EditText custom.

我该怎么办?

我尝试了这些解决方案，但它们对我不起作用:

I tried these solutions but they do not work for me :

Android自定义EditText和后退按钮替代

EditText OnKeyDown

在EditText上获取键事件

Android EditText删除(退格)键事件

感谢您的帮助！

我使用函数DispatchKeyEvent找到了解决该问题的方法:

EDIT : I found a fix for that isssue with the function DispatchKeyEvent :

@Override public boolean dispatchKeyEvent(@NonNull KeyEvent event) { 
    if (event.getAction() == KeyEvent.ACTION_DOWN
        && event.getKeyCode() == KeyEvent.KEYCODE_DEL) {
     // ... 
    }
    return super.dispatchKeyEvent(event);
}

推荐答案

我使用函数DispatchKeyEvent找到了针对该问题的修复程序:

I found a fix for that isssue with the function DispatchKeyEvent :

@Override public boolean dispatchKeyEvent(@NonNull KeyEvent event) { 
    if (event.getAction() == KeyEvent.ACTION_DOWN
        && event.getKeyCode() == KeyEvent.KEYCODE_DEL) {
        // ... 
    }
    return super.dispatchKeyEvent(event);
}

这篇关于Android-在自定义EditText上捕获退格键(删除)按钮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！