Android自定义键盘

2021-12-24 00:45:26

布局文件

 <?xml version="1.0" encoding="UTF-8"?>

 <Keyboard android:keyWidth="10.000002%p" android:keyHeight="@dimen/key_height"

     android:horizontalGap="0.0px" android:verticalGap="0.0px"

     xmlns:android="http://schemas.android.com/apk/res/android">

     <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:horizontalGap="4.999995%p" android:codes="97"

             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:keyWidth="14.999998%p" android:codes="-1"

             android:keyEdgeFlags="left" android:isModifier="true"

             android:isSticky="true" android:keyIcon="@drawable/sym_keyboard_shift" />

         <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:keyWidth="14.999998%p" android:codes="-5"

             android:keyEdgeFlags="right" android:isRepeatable="true"

             android:keyIcon="@drawable/sym_keyboard_delete" />

     </Row>

     <Row android:rowEdgeFlags="bottom">

         <Key android:keyWidth="20.000004%p" android:codes="-2"

             android:keyLabel="12#" />

         <Key android:keyWidth="14.999998%p" android:codes="44"

             android:keyLabel="," />

         <Key android:keyWidth="29.999996%p" android:codes="32"

             android:isRepeatable="true" android:keyIcon="@drawable/sym_keyboard_space" />

         <Key android:keyWidth="14.999998%p" android:codes="46"

             android:keyLabel="." />

         <Key android:keyWidth="20.000004%p" android:codes="-3"

             android:keyEdgeFlags="right" android:keyLabel="完成" />

     </Row>

 </Keyboard>

 <?xml version="1.0" encoding="utf-8"?>

 <Keyboard xmlns:android="http://schemas.android.com/apk/res/android"

     android:keyWidth="25%p" android:horizontalGap="0px"

     android:verticalGap="0px" android:keyHeight="@dimen/key_height">

     <Row>

         <Key android:codes="49" android:keyLabel="1" />

         <Key android:codes="50" android:keyLabel="2" />

         <Key android:codes="51" android:keyLabel="3" />

         <Key android:codes="57419" android:keyEdgeFlags="right"

             android:keyIcon="@drawable/sym_keyboard_left" />

     </Row>

     <Row>

         <Key android:codes="52" android:keyLabel="4" />

         <Key android:codes="53" android:keyLabel="5" />

         <Key android:codes="54" android:keyLabel="6" />

         <Key android:codes="57421" android:keyEdgeFlags="right"

             android:keyIcon="@drawable/sym_keyboard_right" />

     </Row>

     <Row>

         <Key android:codes="55" android:keyLabel="7" />

         <Key android:codes="56" android:keyLabel="8" />

         <Key android:codes="57" android:keyLabel="9" />

         <Key android:codes="-3" android:keyHeight="100dip"

             android:keyEdgeFlags="right" android:isRepeatable="true"

             android:keyLabel="完成" />

     </Row>

     <Row>

         <Key android:codes="-2" android:keyLabel="ABC" />

         <Key android:codes="48" android:keyLabel="0" />

         <Key android:codes="-5" android:keyIcon="@drawable/sym_keyboard_delete" />

     </Row>

 </Keyboard>

主要操作类

package com.example.administrator.yunphone.UI;

import java.util.List;

import android.app.Activity;

import android.content.Context;

import android.inputmethodservice.Keyboard;

import android.inputmethodservice.KeyboardView;

import android.inputmethodservice.Keyboard.Key;

import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;

import android.text.Editable;

import android.view.View;

import android.widget.EditText;

import com.example.administrator.yunphone.R;

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

    public boolean isnun = false;// 是否数据键盘

    public boolean isupper = false;// 是否大写

    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);

        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 == 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 {//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;

    }

}

使用

 public void setKeyBoard() {

        edit = (EditText)findViewById(R.id.edit);

        edit.setInputType(InputType.TYPE_NULL);

        edit.setOnTouchListener(new View.OnTouchListener() {

            @Override

            public boolean onTouch(View view, MotionEvent motionEvent) {

                new KeyboardUtil(activity, context, edit).showKeyboard();

                return false;

            }

        });

    }

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