先看效果图：
1.在需要的调用软键盘的activity_mian.xml中加入键盘控件
android:layout_height="wrap_content"
android:gravity="center_horizontal">
1.1
android:keyPreviewLayout="@layout/key_preview_layout"这个是长按键盘时弹出框的样式，如果不写，系统默认，默认的有时会会看不清
key_preview_layout.xml：
android:layout_height="wrap_content"
android:textSize="40sp"
android:textColor="@android:color/white"
android:gravity="center"
android:background="#80929299"/>
1.2
android:keyBackground="@drawable/btn_keyboard_key"按键的形状
btn_keyboard_key.xml:
android:bottomRightRadius="8dip"
android:bottomLeftRadius="8dip" />
2.然后在res文件夹下新建文件夹，里面新建三个文件，即每种键盘样式的布局分别为qwerty.xml, symbols.xml, punctuate.xml
字母键盘-qwerty.xml：
xmlns:android="http://schemas.android.com/apk/res/android">
android:horizontalGap="33dp"
android:isSticky="true" android:keyIcon="@drawable/shift" />
android:keyEdgeFlags="right" android:isRepeatable="true"
android:keyIcon="@drawable/delete" />
数字键盘-symbols.xml：
android:verticalGap="15dp" android:keyHeight="60dp">
android:isSticky="true" android:keyIcon="@drawable/punctuate" />
android:keyEdgeFlags="right" android:isRepeatable="true"
android:keyIcon="@drawable/delete" />
标点键盘-punctuate.xml
android:verticalGap="15dp" android:keyHeight="60dp">
android:keyIcon="@drawable/space" 的部分没有图片的话可以换成 android:keyLabel=" "括号里用相应字母或符号代替
3.然后就是KeyBoardUtil工具类，网上有很多内容大同小异，我为了实现三种键盘的切换进行了一些改动
KeyBoardUtil.java
package com.dcdz.app.base;
import android.app.Activity;
import android.content.Context;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.Keyboard.Key;
import android.inputmethodservice.KeyboardView;
import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;
import android.text.Editable;
import android.view.View;
import android.widget.EditText;
import com.dcdz.app.R;
import java.util.List;
public class KeyboardUtil {
private Context ctx;
private Activity act;
private KeyboardView keyboardView;
private Keyboard k1;// 字母键盘
private Keyboard k2;// 数字键盘
private Keyboard k3;//标点符号键盘
public boolean isnun = false;// 是否数据键盘
public boolean ispun = false;//是否标点键盘
public boolean isupper = false;// 是否大写
public static final int KEYCODE_PUN = -7;
private EditText ed;
public KeyboardUtil(Activity act, Context ctx, EditText edit) {
this.act = act;
this.ctx = ctx;
this.ed = edit;
k1 = new Keyboard(ctx, R.xml.qwerty);
k2 = new Keyboard(ctx, R.xml.symbols);
k3 = new Keyboard(ctx,R.xml.punctuate);
keyboardView = (KeyboardView) act.findViewById(R.id.keyboard_view);
keyboardView.setKeyboard(k1);
keyboardView.setEnabled(true);
keyboardView.setPreviewEnabled(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 == Keyboard.KEYCODE_MODE_CHANGE) {// 数字键盘切换
if (isnun) {
isnun = false;
keyboardView.setKeyboard(k1);
} else {
isnun = true;
keyboardView.setKeyboard(k2);
}
}else if(primaryCode == KEYCODE_PUN){
if(ispun){
ispun = false;
keyboardView.setKeyboard(k2);
}else {
ispun = true;
keyboardView.setKeyboard(k3);
}
}
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 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 {//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;
}
}
}
}
public void showKeyboard() {
int visibility = keyboardView.getVisibility();
if (visibility == View.GONE || visibility == View.INVISIBLE) {
keyboardView.setVisibility(View.VISIBLE);
}
}
public void hideKeyboard() {
int visibility = keyboardView.getVisibility();
if (visibility == View.VISIBLE) {
keyboardView.setVisibility(View.INVISIBLE);
}
}
private boolean isword(String str){
String wordstr = "abcdefghijklmnopqrstuvwxyz";
if (wordstr.indexOf(str.toLowerCase())>-1) {
return true;
}
return false;
}
}
4.最后是调用
4.1在Fragment里调
一般的项目都是在Fragment里调的，这个根据你的文本框的位置具体来定吧
我这边内容较多，只写关键代码
public class UserLoginFragment extends SupportFragment {
FragmentFingerUserloginBinding binding;
private EditText etUserName;
private EditText etPassword;
private Context ctx;
private Activity act;
private KeyboardView keyboardView;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
binding = DataBindingUtil.inflate(inflater, R.layout.fragment_finger_userlogin, container, false);
act = getActivity();
ctx = getActivity().getBaseContext();
keyboardView = (KeyboardView) getActivity().findViewById(R.id.keyboard_view);
etUserName = binding.etUsername;
etPassword = binding.etPassword;
initView();
return binding.getRoot();
}
private void initView() {
if (binding != null) {
etUserName.requestFocus();
// etUserName.setFocusableInTouchMode(true);
etUserName.addTextChangedListener(watcher);
etPassword.addTextChangedListener(watcher);
etUserName.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI);
etPassword.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI);
//调用自定义键盘
etUserName.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
keyboardView.setKeyboard(k1);
// int inputback = etUserName.getInputType();
// etUserName.setInputType(InputType.TYPE_NULL);
new KeyboardUtil(act,act.getBaseContext(), etUserName).showKeyboard();
// etUserName.setInputType(inputback);
return false;
}
});
etPassword.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
keyboardView.setKeyboard(k2);
new KeyboardUtil(act, act.getBaseContext(), etPassword).showKeyboard();
return false;
}
});
}
}
}
4.2在Activity里调，在Activity里调我是为了在这里实现触摸屏幕其他位置隐藏软键盘
关键代码
public class FingerActivity extends SupportActivity {
private KeyboardView keyboardView;
@SuppressLint("ResourceType")
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = DataBindingUtil.setContentView(this, R.layout.activity_finger);
keyboardView = (KeyboardView) findViewById(R.id.keyboard_view);
initView();
loadRootFragment(new UserLoginFragment());
}
public boolean onTouchEvent(MotionEvent event) {
if(null != this.getCurrentFocus()){
/**
* 点击空白位置 隐藏软键盘
*/
keyboardView.setVisibility(View.INVISIBLE);
}
return super .onTouchEvent(event);
}
5到这里即基本可以实现了，在使用的时候肯定还会遇到很多小问题，这里也不一 一列举了。