問題描述

我想覆蓋虛擬鍵盤的 ENTER 鍵的行為，以便:

I want to override the behaviour of the ENTER key of the virtual keyboard so that:

• 當屏幕上有更多字段時，它會制表"到下一個字段
• 當它是屏幕的最后一個字段時，它執(zhí)行屏幕的默認動作

我一直在使用 IME 選項和標簽，但沒有得到我想要的.有人有什么建議嗎?

I've been playing with the IME options and labels, but just don't get what I want. Anybody have any suggestions?

推薦答案

在另一個論壇的幫助下，我找到了方法.

With help on another forum, I found the way to do it.

為了使其可重用，我創(chuàng)建了自己的超級對話框類，其中包含 2 個 OnKeyListener 對象和一個抽象提交方法:

To make it reusable, I have created my own super dialog class that contains 2 OnKeyListener objects and an abstract submit method:

public abstract class MyAbstractDialog extends Dialog {

/**
 * OnKeyListener that puts the focus down when the ENTER key is pressed
 */
protected View.OnKeyListener onEnterFocusDown = new View.OnKeyListener() {

                @Override
                public boolean onKey(View v, int keyCode, KeyEvent event) {
                if ((event.getAction() == KeyEvent.ACTION_DOWN) &&
                            (keyCode == KeyEvent.KEYCODE_ENTER)) {
                                v.requestFocus(View.FOCUS_DOWN);
                        return true;
                }
                        return false;
                }
        };

/**
 * OnKeyListener that submits the page when the ENTER key is pressed
 */
protected View.OnKeyListener onEnterSubmitView = new View.OnKeyListener() {

                @Override
                public boolean onKey(View v, int keyCode, KeyEvent event) {
                if ((event.getAction() == KeyEvent.ACTION_DOWN) &&
                            (keyCode == KeyEvent.KEYCODE_ENTER)) {
                                submitView(v);
                        return true;
                }
                        return false;
                }
        };
        protected abstract void submitView(View v);

}

現(xiàn)在在 Dialog 我可以使用這些對象來設(shè)置我的字段:

Now in the Dialog I can use these objects to set on my fields:

// make the ENTER key on passwordField1 put the focus on the next field
passwordField1.setOnKeyListener(onEnterFocusDown);

// make the ENTER key on passwordField2 submit the page
passwordField2.setOnKeyListener(onEnterSubmitView);

這篇關(guān)于如何覆蓋 <ENTER>Android中虛擬鍵盤的按鍵行為的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！