问题描述

我有一个 EditText 我正在设置以下属性，以便当用户单击 EditText 时我可以在键盘上显示完成按钮.

I am having an EditText where I am setting the following property so that I can display the done button on the keyboard when user click on the EditText.

editText.setImeOptions(EditorInfo.IME_ACTION_DONE);

当用户单击屏幕键盘上的完成按钮(完成输入)时，我想更改 RadioButton 状态.

When user clicks the done button on the screen keyboard (finished typing) I want to change a RadioButton state.

如何在屏幕键盘点击完成按钮时跟踪它?

How can I track done button when it is hit from screen keyboard?

推荐答案

我最终得到了 Roberts 和 chirags 的组合答案:

I ended up with a combination of Roberts and chirags answers:

((EditText)findViewById(R.id.search_field)).setOnEditorActionListener(
        new EditText.OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        // Identifier of the action. This will be either the identifier you supplied,
        // or EditorInfo.IME_NULL if being called due to the enter key being pressed.
        if (actionId == EditorInfo.IME_ACTION_SEARCH
                || actionId == EditorInfo.IME_ACTION_DONE
                || event.getAction() == KeyEvent.ACTION_DOWN
                && event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
            onSearchAction(v);
            return true;
        }
        // Return true if you have consumed the action, else false.
        return false;
    }
});

更新:上面的代码有时会激活回调两次.相反，我选择了从 Google 聊天客户端获得的以下代码:

Update: The above code would some times activate the callback twice. Instead I've opted for the following code, which I got from the Google chat clients:

public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
    // If triggered by an enter key, this is the event; otherwise, this is null.
    if (event != null) {
        // if shift key is down, then we want to insert the '
' char in the TextView;
        // otherwise, the default action is to send the message.
        if (!event.isShiftPressed()) {
            if (isPreparedForSending()) {
                confirmSendMessageIfNeeded();
            }
            return true;
        }
        return false;
    }

    if (isPreparedForSending()) {
        confirmSendMessageIfNeeded();
    }
    return true;
}

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