参考连接：http://blog.csdn.net/hfsu0419/article/details/7924673
由于项目需求，需要对软键盘中字符键自定义，实例项目如下。
首先在layout下创建布局文件activity_main.xml：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<EditText
android:id="@+id/edit1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:inputType="none" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<android.inputmethodservice.KeyboardView
android:id="@+id/keyboard_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:focusable="true"
android:focusableInTouchMode="true"
android:background="@android:color/darker_gray"
android:keyTextColor="#00ff00"
android:visibility="gone" />
</RelativeLayout>
</LinearLayout>
接着是创建键盘的各个键的分布文件custom.xml，并把它放在xml文件下：
<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:horizontalGap="0.0px"
android:keyHeight="50dp"
android:keyWidth="10.000002%p"
android:verticalGap="0.0px" >
<Row>
<Key
android:codes="49"
android:keyEdgeFlags="left"
android:keyLabel="1" />
<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:keyEdgeFlags="right"
android:keyLabel="0" />
</Row>
<Row>
<Key
android:codes="113"
android:keyEdgeFlags="left"
android:keyLabel="q" />
<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:keyEdgeFlags="right"
android:keyLabel="p" />
</Row>
<Row>
<Key
android:codes="97"
android:horizontalGap="4.999995%p"
android:keyEdgeFlags="left"
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:keyEdgeFlags="right"
android:keyLabel="l" />
</Row>
<Row>
<Key
android:codes="-1"
android:isModifier="true"
android:isSticky="true"
android:keyEdgeFlags="left"
android:keyLabel="大写"
android:keyWidth="14.999998%p" />
<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:isRepeatable="true"
android:keyEdgeFlags="right"
android:keyLabel="退格"
android:keyWidth="14.999998%p" />
</Row>
<Row android:rowEdgeFlags="bottom" >
<Key
android:codes="44"
android:keyEdgeFlags="left"
android:keyLabel=","
android:keyWidth="25%p" />
<Key
android:codes="32"
android:isRepeatable="true"
android:keyLabel="空格"
android:keyWidth="25%p" />
<Key
android:codes="46"
android:keyLabel="."
android:keyWidth="25%p" />
<Key
android:codes="-3"
android:keyEdgeFlags="right"
android:keyLabel="完成"
android:keyWidth="25%p" />
</Row>
</Keyboard>
创建键盘工具类KeyboardUtil.java：
public class KeyboardUtil {
private KeyboardView keyboardView;
private Keyboard k1;
public boolean isupper = false;// 是否大写
boolean isShow=false;
private EditText ed;
public KeyboardUtil(Activity act, Context ctx, EditText edit) {
this.ed = edit;
k1 = new Keyboard(ctx, R.xml.custom);
keyboardView = (KeyboardView) act.findViewById(R.id.keyboard_view);
keyboardView.setKeyboard(k1);
keyboardView.setEnabled(true);
keyboardView.setOnKeyboardActionListener(listener);
}
private OnKeyboardActionListener listener = new OnKeyboardActionListener() {
@Override
public void swipeUp() {
}
@Override
public void swipeRight() {
}
@Override
public void swipeLeft() {
}
@Override
public void swipeDown() {
}
@Override
public void onText(CharSequence text) {
}
@Override
public void onRelease(int primaryCode) {
}
@Override
public void onPress(int primaryCode) {
}
@Override
public void onKey(int primaryCode, int[] keyCodes) {
Editable editable = ed.getText();
int start = ed.getSelectionStart();
if (primaryCode == Keyboard.KEYCODE_CANCEL) {// 完成
hideKeyboard();
} else if (primaryCode == Keyboard.KEYCODE_DELETE) {// 回退
if (editable != null && editable.length() > 0) {
if (start > 0) {
editable.delete(start - 1, start);
}
}
} else if (primaryCode == Keyboard.KEYCODE_SHIFT) {// 大小写切换
changeKey();
keyboardView.setKeyboard(k1);
} else if (primaryCode == 57419) { // go left
if (start > 0) {
ed.setSelection(start - 1);
}
} else if (primaryCode == 57421) { // go right
if (start < ed.length()) {
ed.setSelection(start + 1);
}
} else {
editable.insert(start, Character.toString((char) primaryCode));
}
}
};
/**
* 键盘大小写切换
*/
private void changeKey() {
List<Key> keylist = k1.getKeys();
if (isupper) {//大写切换小写
isupper = false;
for(Key key:keylist){
if (key.label!=null && isword(key.label.toString())) {
key.label = key.label.toString().toLowerCase();
key.codes[0] = key.codes[0]+32;
}else if(key.label.toString().equals("小写")){
key.label="大写";
}
}
} else {//小写切换大写
isupper = true;
for(Key key:keylist){
if (key.label!=null && isword(key.label.toString())) {
key.label = key.label.toString().toUpperCase();
key.codes[0] = key.codes[0]-32;
} else if(key.label.toString().equals("大写")){
key.label="小写";
}
}
}
}
public void showKeyboard() {
int visibility = keyboardView.getVisibility();
if (visibility == View.GONE || visibility == View.INVISIBLE) {
keyboardView.setVisibility(View.VISIBLE);
isShow=true;
}
}
public void hideKeyboard() {
int visibility = keyboardView.getVisibility();
if (visibility == View.VISIBLE) {
keyboardView.setVisibility(View.INVISIBLE);
isShow=false;
}
}
private boolean isword(String str){
String wordstr = "abcdefghijklmnopqrstuvwxyz";
if (wordstr.indexOf(str.toLowerCase())>-1) {
return true;
}
return false;
}
}
最后在activity中调用KeyboardUtil：
public class KeydemoActivity extends Activity {
private Context ctx;
private Activity act;
private EditText edit;
KeyboardUtil util;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ctx = this;
act = this;
edit = (EditText) this.findViewById(R.id.edit1);
if (android.os.Build.VERSION.SDK_INT <= 10) {
edit.setInputType(InputType.TYPE_NULL);
} else {
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
try {
Class<EditText> cls = EditText.class;
Method setShowSoftInputOnFocus;
// setShowSoftInputOnFocus = cls.getMethod("setShowSoftInputOnFocus", boolean.class);
setShowSoftInputOnFocus = cls.getMethod("setSoftInputShownOnFocus", boolean.class);
//4.0的是setShowSoftInputOnFocus,4.2的是setSoftInputOnFocus
setShowSoftInputOnFocus.setAccessible(false);
setShowSoftInputOnFocus.invoke(edit, false);
} catch (Exception e) {
e.printStackTrace();
}
}
util=new KeyboardUtil(act, ctx, edit);
edit.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
util.showKeyboard();
return false;
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode==KeyEvent.KEYCODE_BACK){
if(util.isShow){
util.hideKeyboard();
}else{
finish();
}
return false;
}
return super.onKeyDown(keyCode, event);
}
}
注意红色字段，这是在处理光标出现的问题，刚开始用注销的的方法，测试不成功，调试后发现是方法名错误，改正好成功。
android自定义软键盘
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转载自l540151663.iteye.com/blog/2016257
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