Android自定义随机键盘

package cn.key; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; import java.util.Random; 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.text.Selection; import android.text.Spannable; import android.text.TextUtils; import android.util.Log; import android.view.View; import android.widget.EditText; import android.widget.Toast; public class KeyboardUtil { private Activity mActivity; @SuppressWarnings("unused") private Context mContext; @SuppressWarnings("unused") private KeyboardView keyboardView; private Keyboard keyAlp;// 字母键盘 private Keyboard keyDig;// 数字键盘 public boolean isnun = false;// 是否数字键盘 public boolean isupper = false;// 是否大写 private EditText ed; public KeyboardUtil(Activity mActivity,Context mContext, EditText edit) { this.mActivity=mActivity; this.mContext = mContext; this.ed = edit; keyAlp = new Keyboard(mContext, R.xml.qwerty); keyDig = new Keyboard(mContext, R.xml.symbols); keyboardView = (KeyboardView) mActivity.findViewById(R.id.keyboard_view); randomalpkey(); //keyboardView.setKeyboard(keyAlp); 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(); Toast.makeText(mContext, ed.getText().toString(), Toast.LENGTH_LONG).show(); } else if (primaryCode == Keyboard.KEYCODE_DELETE) {// 回退 if (!TextUtils.isEmpty(editable)) { if (start > 0) { editable.delete(start - 1, start); } } } else if (primaryCode == Keyboard.KEYCODE_SHIFT) {// 大小写切换 changeKey(); keyboardView.setKeyboard(keyAlp); } else if (primaryCode == Keyboard.KEYCODE_MODE_CHANGE) {// 数字键盘切换 if (isnun) { isnun = false; randomalpkey(); } else { isnun = true; randomdigkey(); } }else { editable.insert(start, Character.toString((char) primaryCode)); } } }; /** * 键盘大小写切换 */ private void changeKey() { List<Key> keylist = keyAlp.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 isNumber(String str) { String wordstr = "0123456789"; if (wordstr.indexOf(str) > -1) { return true; } return false; } private boolean isword(String str) { String wordstr = "abcdefghijklmnopqrstuvwxyz"; if (wordstr.indexOf(str.toLowerCase()) > -1) { return true; } return false; } private void randomdigkey(){ List<Key> keyList = keyDig.getKeys(); // 查找出0-9的数字键 List<Key> newkeyList = new ArrayList<Key>(); for (int i = 0; i < keyList.size(); i++) { if (keyList.get(i).label != null && isNumber(keyList.get(i).label.toString())) { newkeyList.add(keyList.get(i)); } } // 数组长度 int count = newkeyList.size(); // 结果集 List<KeyModel> resultList = new ArrayList<KeyModel>(); // 用一个LinkedList作为中介 LinkedList<KeyModel> temp = new LinkedList<KeyModel>(); // 初始化temp for (int i = 0; i < count; i++) { temp.add(new KeyModel(48 + i, i + "")); } // 取数 Random rand = new Random(); for (int i = 0; i < count; i++) { int num = rand.nextInt(count - i); resultList.add(new KeyModel(temp.get(num).getCode(), temp.get(num).getLable())); temp.remove(num); } for (int i = 0; i < newkeyList.size(); i++) { newkeyList.get(i).label = resultList.get(i).getLable(); newkeyList.get(i).codes[0] = resultList.get(i) .getCode(); } keyboardView.setKeyboard(keyDig); } private void randomalpkey(){ List<Key> keyList = keyAlp.getKeys(); // 查找出a-z的数字键 List<Key> newkeyList = new ArrayList<Key>(); for (int i = 0; i < keyList.size(); i++) { if (keyList.get(i).label != null && isword(keyList.get(i).label.toString())) { newkeyList.add(keyList.get(i)); } } // 数组长度 int count = newkeyList.size(); // 结果集 List<KeyModel> resultList = new ArrayList<KeyModel>(); // 用一个LinkedList作为中介 LinkedList<KeyModel> temp = new LinkedList<KeyModel>(); // 初始化temp for (int i = 0; i < count; i++) { temp.add(new KeyModel(97 + i, "" + (char) (97 + i))); } // 取数 Random rand = new Random(); for (int i = 0; i < count; i++) { int num = rand.nextInt(count - i); resultList.add(new KeyModel(temp.get(num).getCode(), temp.get(num).getLable())); temp.remove(num); } for (int i = 0; i < newkeyList.size(); i++) { newkeyList.get(i).label = resultList.get(i).getLable(); newkeyList.get(i).codes[0] = resultList.get(i) .getCode(); } keyboardView.setKeyboard(keyAlp); } }