如何在键盘xml中映射重音字符

时间:2013-03-14 18:11:50

标签: android android-softkeyboard android-xml

我必须在我的应用程序中实现一个简单的自定义软键盘,我也想在键盘上显示重音字符。

这些是: í,é,á,ű,ú,ő,ó,ü,ö

我的问题是如何在键盘xml中映射这些?这些的关键代码是什么?我无法在官方KeyEvent文件中找到它们。

我当前的键盘定义xml如下所示:

<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="10%p"
    android:horizontalGap="0px"
    android:verticalGap="0px"
    >

<Row android:keyHeight="16%">
    <Key android:codes="45" android:keyLabel="q" android:keyEdgeFlags="left"/>
    <Key android:codes="51" android:keyLabel="w"/>
    <Key android:codes="33" android:keyLabel="e"/>
    <Key android:codes="46" android:keyLabel="r"/>
    <Key android:codes="48" android:keyLabel="t"/>
    <Key android:codes="54" android:keyLabel="z"/>
    <Key android:codes="49" android:keyLabel="u"/>
    <Key android:codes="37" android:keyLabel="i"/>
    <Key android:codes="43" android:keyLabel="o"/>
    <Key android:codes="44" android:keyLabel="p" android:keyEdgeFlags="right"/>
</Row>

<Row android:keyHeight="16%">
    <Key android:codes="?" android:keyLabel="ö" android:keyEdgeFlags="left"/>
    <Key android:codes="?" android:keyLabel="ő"/>
    <Key android:codes="?" android:keyLabel="ü"/>
    <Key android:codes="?" android:keyLabel="ű"/>
    <Key android:codes="?" android:keyLabel="ó"/>
    <Key android:codes="?" android:keyLabel="é"/>
    <Key android:codes="?" android:keyLabel="á"/>
    <Key android:codes="?" android:keyLabel="í" android:keyEdgeFlags="right"/>
</Row>
</Keyboard>

2 个答案:

答案 0 :(得分:4)

最后我用一招来解决了这个问题。

将自定义键码从900到908插入到包含我的重音字符的行中。

<Row android:keyHeight="16%">
    <Key android:codes="900" android:keyLabel="ö" android:keyEdgeFlags="left"/>
    <Key android:codes="901" android:keyLabel="ő"/>
    <Key android:codes="902" android:keyLabel="ü"/>
    <Key android:codes="903" android:keyLabel="ű"/>
    <Key android:codes="904" android:keyLabel="ó"/>
    <Key android:codes="905" android:keyLabel="ú"/>
    <Key android:codes="906" android:keyLabel="á"/>
    <Key android:codes="907" android:keyLabel="é"/>
    <Key android:codes="908" android:keyLabel="í" android:keyEdgeFlags="right"/>
</Row>

我设置了我的KeyboardView的Action Listener,我将目标EditText作为对象传递给我的OnKeyboardActionListener。

这样在我的OnKeyboardActionListener的onKey方法中,我可以检查primaryCode是否大于900或等于它,那么我只需设置EditText的文本并将我的重音字符插入光标位置:

@Override
public void onKey(int primaryCode, int[] keyCodes) {        
    if(primaryCode >= 900) {
    String character = null;

    switch(keyCode) {
        case 900:
            character = "ö";
            break;
        case 901:
            character = "ő";
            break;
        case 902:
            character = "ü";
            break;
        case 903:
            character = "ű";
            break;
        case 904:
            character = "ó";
            break;
        case 905:
            character = "ú";
            break;
        case 906:
            character = "á";
            break;
        case 907:
            character = "é";
            break;
        case 908:
            character = "í";
            break;
        default:
            return;
    }

    int start = mTargetView.getSelectionStart();
    int end = mTargetView.getSelectionEnd();
    mTargetView.getText().replace(Math.min(start, end), Math.max(start, end), character, 0, character.length());
    } else {
        long eventTime = System.currentTimeMillis();
        KeyEvent event = new KeyEvent(eventTime, eventTime,
                KeyEvent.ACTION_DOWN, primaryCode, 0, 0, 0, 0,
                KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE);

        mTargetActivity.dispatchKeyEvent(event);
    }

}

其中mTargetView是我的EditText。有了这个技巧,我可以将重音的unicode字符和基本上所有内容插入到带有标准键盘xml映射的EditText中。

答案 1 :(得分:0)

稍微简短的解决方案就是删除codes,因为在这种情况下会发送标签文本。

<Row>
    <Key android:keyLabel="ö" android:keyEdgeFlags="left"/>
    <Key android:keyLabel="ő"/>
    <Key android:keyLabel="ü"/>
    <Key android:keyLabel="ű"/>
    <Key android:keyLabel="ó"/>
    <Key android:keyLabel="ú"/>
    <Key android:keyLabel="á"/>
    <Key android:keyLabel="é"/>
    <Key android:keyLabel="í" android:keyEdgeFlags="right"/>
</Row>

另见How to make an Android custom keyboard