自定义 android 键盘

package com.example.yangkexue.myapplication; /** * → * author : yangkexue * time : 2017/5/3 * 简书博客 : http://www.jianshu.com/u/eb77504b1d68 */ import android.app.Activity; import android.inputmethodservice.Keyboard; import android.inputmethodservice.Keyboard.Key; import android.inputmethodservice.KeyboardView; import android.inputmethodservice.KeyboardView.OnKeyboardActionListener; import android.os.Build; import android.text.Editable; import android.view.View; import android.view.animation.Animation; import android.widget.EditText; import java.lang.reflect.Method; import java.util.List; public class KeyboardViewS implements OnKeyboardActionListener { private static final int KEYBOARD_DURATION = 350; private EditText mEditText; private Keyboard mKeyboard; /** 是否大写 */ private boolean isUperCase = false; private android.inputmethodservice.KeyboardView keyboardView; public KeyboardViewS(Activity act, EditText edit) { this.mEditText = edit; mKeyboard = new Keyboard(act, R.xml.qwerty); keyboardView = (android.inputmethodservice.KeyboardView) (act.findViewById(R.id.keyboard_view)); keyboardView.setKeyboard(mKeyboard); /** 设置没有弹窗的提示 */ keyboardView.setPreviewEnabled(false); keyboardView.setOnKeyboardActionListener(this); uperCase(); } @Override public void onKey(int primaryCode, int[] keyCodes) { Editable editable = mEditText.getText(); int start = mEditText.getSelectionStart(); if (primaryCode == Keyboard.KEYCODE_CANCEL) { // 完成 hideKeyboard(keyboardView); } 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 uperCase(); keyboardView.setKeyboard(mKeyboard); } else if (primaryCode == 57419) { if (start > 0) { mEditText.setSelection(start - 1); } } else if (primaryCode == 57421) { if (start < mEditText.length()) { mEditText.setSelection(start + 1); } } else { editable.insert(start, Character.toString((char) primaryCode)); } } /** 键盘大小写切换 */ private void uperCase() { final List<Key> keylist = mKeyboard.getKeys(); if (isUperCase) { isUperCase = 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 { isUperCase = 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; } } } } /** 隐藏输入法，显示光标 */ public static void setSystemInputGone(EditText editText) { if (Build.VERSION.SDK_INT >= 11) { Class<EditText> cls = EditText.class; try { Method setShowSoftInputOnFocus = cls.getMethod("setShowSoftInputOnFocus", boolean.class); setShowSoftInputOnFocus.setAccessible(false); setShowSoftInputOnFocus.invoke(editText, false); } catch (Exception e) { e.printStackTrace(); } } else { editText.setInputType(android.text.InputType.TYPE_NULL); editText.setInputType(editText.getInputType()); } } /** 显示键盘 */ public void showKeyboard() { int visibility = keyboardView.getVisibility(); if (visibility == View.GONE || visibility == View.INVISIBLE) { Animation anim = AnimationUtils.translateAnimationOut(KEYBOARD_DURATION); keyboardView.setVisibility(View.VISIBLE); keyboardView.startAnimation(anim); anim.setAnimationListener(new AnimationListener() { @Override public void onAnimationEnd(Animation animation) { super.onAnimationEnd(animation); keyboardView.clearAnimation(); } }); } } /** 隐藏键盘 */ public static void hideKeyboard(final KeyboardView keyboardView) { if (keyboardView == null) { return; } if (keyboardView.getVisibility() == View.VISIBLE) { Animation anim = AnimationUtils.translateAnimationIn(KEYBOARD_DURATION); keyboardView.startAnimation(anim); anim.setAnimationListener(new AnimationListener() { @Override public void onAnimationEnd(Animation animation) { super.onAnimationEnd(animation); keyboardView.clearAnimation(); } }); keyboardView.setVisibility(View.GONE); } } private boolean isword(String str) { final String wordstr = "abcdefghijklmnopqrstuvwxyz"; if (wordstr.indexOf(str.toLowerCase()) > -1) { return true; } return false; } @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) {} }