我正在开发自定义键盘。我想添加 shift 键并在用户按下它时更改 xml 文件。
lowercase.xml
<!--
Copyright (C) 2008-2012 OMRON SOFTWARE Co., Ltd.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyWidth="10%p"
android:horizontalGap="0dip"
android:verticalGap="0dip"
android:keyHeight="@dimen/key_height"
>
<Row>
<Key android:codes="113" android:keyLabel="q" android:keyEdgeFlags="left"/>
<Key android:codes="119" android:keyLabel="w"/>
<Key android:codes="101" android:keyLabel="e"/>
<Key android:codes="114" android:keyLabel="r"/>
<Key android:codes="116" android:keyLabel="t"/>
<Key android:codes="121" android:keyLabel="y"/>
<Key android:codes="117" android:keyLabel="u"/>
<Key android:codes="105" android:keyLabel="i"/>
<Key android:codes="111" android:keyLabel="o"/>
<Key android:codes="112" android:keyLabel="p" android:keyEdgeFlags="right"/>
</Row>
<Row>
<Key android:codes="97" android:keyLabel="a" android:horizontalGap="5%p" android:keyEdgeFlags="left"/>
<Key android:codes="115" android:keyLabel="s"/>
<Key android:codes="100" android:keyLabel="d"/>
<Key android:codes="102" android:keyLabel="f"/>
<Key android:codes="103" android:keyLabel="g"/>
<Key android:codes="104" android:keyLabel="h"/>
<Key android:codes="106" android:keyLabel="j"/>
<Key android:codes="107" android:keyLabel="k"/>
<Key android:codes="108" android:keyLabel="l" android:keyEdgeFlags="right"/>
</Row>
<Row>
<Key android:codes="00"
android:keyIcon="@drawable/key_qwerty_shift" android:iconPreview="@drawable/key_qwerty_shift_b" android:keyWidth="15%p" android:isModifier="true" android:isSticky="true" android:keyEdgeFlags="left"/>
<Key android:codes="122" android:keyLabel="z"/>
<Key android:codes="120" android:keyLabel="x"/>
<Key android:codes="99" android:keyLabel="c"/>
<Key android:codes="118" android:keyLabel="v"/>
<Key android:codes="98" android:keyLabel="b"/>
<Key android:codes="110" android:keyLabel="n"/>
<Key android:codes="109" android:keyLabel="m"/>
<Key android:codes="-5" android:keyIcon="@drawable/key_del" android:iconPreview="@drawable/key_del_b" android:keyWidth="15%p" android:keyEdgeFlags="right" android:isRepeatable="true"/>
</Row>
<Row android:rowEdgeFlags="bottom">
<Key android:codes="00" android:keyLabel="123" android:keyWidth="15%p" android:popupKeyboard="@xml/default_en_symbols" android:keyEdgeFlags="left"/>
<Key android:codes="44" android:keyLabel="," android:keyWidth="10%p"/>
<Key android:codes="32" android:keyIcon="@drawable/key_qwerty_space" android:iconPreview="@drawable/key_qwerty_space_b" android:keyWidth="40%p" android:isRepeatable="true"/>
<Key android:codes="46" android:keyLabel="." android:keyWidth="10%p"/>
<Key android:codes="63" android:keyLabel="\?" android:keyWidth="10%p"/>
<Key android:codes="13" android:keyIcon="@drawable/key_enter" android:iconPreview="@drawable/key_enter_b" android:keyWidth="15%p" android:keyEdgeFlags="right"/>
</Row>
</Keyboard>
和 upercase.xml
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyWidth="10%p"
android:horizontalGap="0px"
android:verticalGap="0px"
android:keyHeight="6%p"
>
<Row android:keyWidth="18%p">
<Key android:codes="49" android:keyLabel="1" android:keyEdgeFlags="left"/>
<Key android:codes="50" android:keyLabel="2"/>
<Key android:codes="51" android:keyLabel="3"/>
<Key android:codes="52" android:keyLabel="4"/>
<Key android:codes="53" android:keyLabel="5"/>
<Key android:codes="54" android:keyLabel="6"/>
<Key android:codes="55" android:keyLabel="7"/>
<Key android:codes="56" android:keyLabel="8"/>
<Key android:codes="57" android:keyLabel="9"/>
<Key android:codes="48" android:keyLabel="0" android:keyEdgeFlags="right"/>
</Row>
<Row >
<Key android:codes="113" android:keyLabel="Q" android:keyEdgeFlags="left"/>
<Key android:codes="119" android:keyLabel="W"/>
<Key android:codes="101" android:keyLabel="E"/>
<Key android:codes="114" android:keyLabel="R"/>
<Key android:codes="116" android:keyLabel="T"/>
<Key android:codes="121" android:keyLabel="Y"/>
<Key android:codes="117" android:keyLabel="U"/>
<Key android:codes="105" android:keyLabel="I"/>
<Key android:codes="111" android:keyLabel="O"/>
<Key android:codes="112" android:keyLabel="P" android:keyEdgeFlags="right"/>
</Row>
<Row >
<Key android:codes="46" android:keyLabel="." android:keyEdgeFlags="left"/>
<Key android:codes="97" android:keyLabel="A"/>
<Key android:codes="115" android:keyLabel="S"/>
<Key android:codes="100" android:keyLabel="D"/>
<Key android:codes="102" android:keyLabel="F"/>
<Key android:codes="103" android:keyLabel="G"/>
<Key android:codes="104" android:keyLabel="H"/>
<Key android:codes="106" android:keyLabel="J"/>
<Key android:codes="107" android:keyLabel="K"/>
<Key android:codes="108" android:keyLabel="L" android:keyEdgeFlags="right"/>
<Key android:codes="-5" android:keyIcon="@drawable/sym_keyboard_delete"
android:keyWidth="15%p" android:keyEdgeFlags="right"
android:isRepeatable="true"/>
</Row>
<Row android:keyHeight="8%p">
<Key android:codes="00"
android:keyIcon="@drawable/key_qwerty_shift" android:iconPreview="@drawable/key_qwerty_shift_b" android:keyWidth="15%p" android:isModifier="true" android:isSticky="true" android:keyEdgeFlags="left"/>
<Key android:codes="32" android:keyLabel="SPACE"
android:keyWidth="20%p" android:isRepeatable="true"/>
<Key android:codes="122" android:keyLabel="Z"/>
<Key android:codes="120" android:keyLabel="X"/>
<Key android:codes="99" android:keyLabel="C"/>
<Key android:codes="118" android:keyLabel="V"/>
<Key android:codes="98" android:keyLabel="B"/>
<Key android:codes="110" android:keyLabel="N"/>
<Key android:codes="109" android:keyLabel="M"/>
<Key android:codes="10" android:keyIcon="@drawable/sym_keyboard_return"
android:keyWidth="20%p" android:keyEdgeFlags="right"/>
</Row>
</Keyboard>
自定义键盘.java
class CustomKeyboard {
/** A link to the KeyboardView that is used to render this CustomKeyboard. */
private KeyboardView mKeyboardView;
/** A link to the activity that hosts the {@link #mKeyboardView}. */
private Activity mHostActivity;
/** The key (code) handler. */
private OnKeyboardActionListener mOnKeyboardActionListener = new OnKeyboardActionListener() {
public final static int CodeDelete = -5; // Keyboard.KEYCODE_DELETE
public final static int CodePrev = 55000;
public final static int CodeNext = 55001;
public final static int CodeDone = 55002;
@Override
public void onKey(int primaryCode, int[] keyCodes) {
// NOTE We can say '<Key android:codes="49,50" ... >' in the xml
// file; all codes come in keyCodes, the first in this list in
// primaryCode
// Get the EditText and its Editable
View focusCurrent = mHostActivity.getWindow().getCurrentFocus();
if (focusCurrent == null
|| focusCurrent.getClass() != EditText.class)
return;
EditText edittext = (EditText) focusCurrent;
Editable editable = edittext.getText();
int start = edittext.getSelectionStart();
// Apply the key to the edittext
if (primaryCode == CodeDone) {
hideCustomKeyboard();
}
else if (primaryCode == CodeDelete)
{
if (editable != null && start > 0)
editable.delete(start - 1, start);
}
else if (primaryCode == CodePrev) {
View focusNew = edittext.focusSearch(View.FOCUS_BACKWARD);
if (focusNew != null)
focusNew.requestFocus();
}
else if (primaryCode == CodeNext) {
View focusNew = edittext.focusSearch(View.FOCUS_FORWARD);
if (focusNew != null)
focusNew.requestFocus();
}
else { // insert character
editable.insert(start, Character.toString((char) primaryCode));
}
}
@Override
public void onPress(int arg0) {
}
@Override
public void onRelease(int primaryCode) {
}
@Override
public void onText(CharSequence text) {
}
@Override
public void swipeDown() {
}
@Override
public void swipeLeft() {
}
@Override
public void swipeRight() {
}
@Override
public void swipeUp() {
}
};
/**
* Create a custom keyboard, that uses the KeyboardView (with resource id
* <var>viewid</var>) of the <var>host</var> activity, and load the keyboard
* layout from xml file <var>layoutid</var> (see {@link Keyboard} for
* description). Note that the <var>host</var> activity must have a
* <var>KeyboardView</var> in its layout (typically aligned with the bottom
* of the activity). Note that the keyboard layout xml file may include key
* codes for navigation; see the constants in this class for their values.
* Note that to enable EditText's to use this custom keyboard, call the
* {@link #registerEditText(int)}.
*
* @param host
* The hosting activity.
* @param viewid
* The id of the KeyboardView.
* @param layoutid
* The id of the xml file containing the keyboard layout.
*/
public CustomKeyboard(Activity host, int viewid, int layoutid) {
mHostActivity = host;
mKeyboardView = (KeyboardView) mHostActivity.findViewById(viewid);
mKeyboardView.setKeyboard(new Keyboard(mHostActivity, layoutid));
mKeyboardView.setPreviewEnabled(false); // NOTE Do not show the preview
// balloons
mKeyboardView.setOnKeyboardActionListener(mOnKeyboardActionListener);
// Hide the standard keyboard initially
mHostActivity.getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}
/** Returns whether the CustomKeyboard is visible. */
public boolean isCustomKeyboardVisible() {
return mKeyboardView.getVisibility() == View.VISIBLE;
}
/**
* Make the CustomKeyboard visible, and hide the system keyboard for view v.
*/
public void showCustomKeyboard(View v) {
mKeyboardView.setVisibility(View.VISIBLE);
mKeyboardView.setEnabled(true);
if (v != null)
((InputMethodManager) mHostActivity
.getSystemService(Activity.INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
/** Make the CustomKeyboard invisible. */
public void hideCustomKeyboard() {
mKeyboardView.setVisibility(View.GONE);
mKeyboardView.setEnabled(false);
}
/**
* Register <var>EditText<var> with resource id <var>resid</var> (on the
* hosting activity) for using this custom keyboard.
*
* @param resid
* The resource id of the EditText that registers to the custom
* keyboard.
*/
public void registerEditText(int resid) {
// Find the EditText 'resid'
EditText edittext = (EditText) mHostActivity.findViewById(resid);
// Make the custom keyboard appear
edittext.setOnFocusChangeListener(new OnFocusChangeListener() {
// NOTE By setting the on focus listener, we can show the custom
// keyboard when the edit box gets focus, but also hide it when the
// edit box loses focus
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus)
showCustomKeyboard(v);
else
hideCustomKeyboard();
}
});
edittext.setOnClickListener(new OnClickListener() {
// NOTE By setting the on click listener, we can show the custom
// keyboard again, by tapping on an edit box that already had focus
// (but that had the keyboard hidden).
@Override
public void onClick(View v) {
showCustomKeyboard(v);
}
});
// Disable standard keyboard hard way
// NOTE There is also an easy way:
// 'edittext.setInputType(InputType.TYPE_NULL)' (but you will not have a
// cursor, and no 'edittext.setCursorVisible(true)' doesn't work )
edittext.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
EditText edittext = (EditText) v;
int inType = edittext.getInputType(); // Backup the input type
edittext.setInputType(InputType.TYPE_NULL); // Disable standard
// keyboard
edittext.onTouchEvent(event); // Call native handler
edittext.setInputType(inType); // Restore input type
return true; // Consume touch event
}
});
// Disable spell check (hex strings look like words to Android)
edittext.setInputType(edittext.getInputType()
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
}
}
请帮我把大写键盘转换成小写键盘。
最佳答案
这是一个老问题。刚刚遇到它。如果有人感兴趣，这是我对 future 参考的回答。 添加:
<Key android:codes="-1" android:keyIcon="@drawable/sym_keyboard_shift" android:keyWidth="12.5%p" android:keyEdgeFlags="left"/>
例如在您的左侧添加 shift 键。 然后将其作为另一个 IF 添加到您的 onKey() 方法中:
else if (primaryCode == -1){
caps = !caps;
keyboard.setShifted(caps);
mKeyboardView.invalidateAllKeys()
}
其中 keyboard 是使用其中一个 xml 扩展的键盘实例。例如:
keyboard = new Keyboard(this, R.xml.lowercase);
caps 是一个标志，用于确定是转换为大写还是 SHIFT 返回小写。单击该键时，这基本上应该会移动您的键盘。
附注 您应该使用 switch case 语句而不是所有这些 if else 语句。
关于android - 如何在 Android 自定义键盘中添加 shift 键？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22914229/