上一篇文章，介绍了自定义输入法的界面和布局，候选词列表采用的是GIF列表图片的形式。现在我把候选词列表改成正真的候选词列表，可以点击选词。如下图：
候选词列表主要采用的Recyclerview来实现的（自己同时也学习了Recyclerview的使用方法）。候选词我存放到SQLite数据库中（网上下载的），常用单词可能不全。当输入某一个或者某一组字母的时候，候选词列表就会显示出当前的联想词来。用户可以左右滑动来选择单词，单击输入。
以下是联想词的选择SQL语句：
String sql = "select english from t_words where english like ?";
Cursor cursor = mSQLiteDatabase.rawQuery(sql, new String[]{inputWord + "%"});其实很简单，采用了SQL语句中的通配符来实现。直接上代码：
数据库操作类 DbUtils.java，比较简单，主要是以实现功能为目的。
package com.manboker.wb.momentcamime.db;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;
import com.manboker.wb.momentcamime.R;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
/**
* Author: aaa
* Date: 2016/11/15 16:07.
*/
public class DbUtils {
private Context mContext;
private volatile static DbUtils dbUtils;
private static final String DATABASE_PATH = android.os.Environment.getExternalStorageDirectory().getAbsolutePath() + "/dictionary";
// 定义数据库的名字
private final String DATABASE_FILENAME = "dictionary.db";
private SQLiteDatabase mSQLiteDatabase;
private DbUtils(Context context) {
mContext = context;
}
public static DbUtils getInstance(Context context) {
if (dbUtils == null) {
synchronized (DbUtils.class) {
if (dbUtils == null) {
dbUtils = new DbUtils(context);
}
}
}
return dbUtils;
}
// 打开数据库
public SQLiteDatabase openDatabase() {
try {
// 获得dictionary.db文件的绝对路径
String databaseFilename = DATABASE_PATH + "/" + DATABASE_FILENAME;
File dir = new File(DATABASE_PATH);
// 如果目录不存在，则创建这个目录
if (!dir.exists()) {
if (!dir.mkdir()) {
Log.i("aaa", "DATABASE_PATH = " + DATABASE_PATH + " Failed");
}
}
// 如果在/sdcard/dictionary目录中不存在
// dictionary.db文件，则从res\raw目录中复制这个文件到
// SD卡的目录（/sdcard/dictionary）
if (!(new File(databaseFilename)).exists()) {
// 获得封装dictionary.db文件的InputStream对象
InputStream is = mContext.getResources().openRawResource(R.raw.dictionary);
FileOutputStream fos = new FileOutputStream(databaseFilename);
byte[] buffer = new byte[8192];
int count = 0;
// 开始复制dictionary.db文件
while ((count = is.read(buffer)) > 0) {
fos.write(buffer, 0, count);
}
// 关闭文件流
fos.close();
is.close();
}
// 打开/sdcard/dictionary目录中的dictionary.db文件
mSQLiteDatabase = SQLiteDatabase.openOrCreateDatabase(databaseFilename, null);
return mSQLiteDatabase;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public ArrayList<String> getCandidateWords(String inputWord) {
ArrayList<String> arrayList = new ArrayList<String>();
// 查询指定的单词
String sql = "select english from t_words where english like ?";
Cursor cursor = mSQLiteDatabase.rawQuery(sql, new String[]{inputWord + "%"});
String result = "@@@";
// 如果查找单词，显示其中文的意思
while (cursor.moveToNext()) {
result = cursor.getString(cursor.getColumnIndex("english"));
arrayList.add(result);
}
cursor.close();
return arrayList;
}
}候选词之间的间隔线 DividerItemDecoration.java
package com.manboker.wb.momentcamime.view;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
/**
* Author: aaa
* Date: 2016/11/15 10:57.
*/
public class DividerItemDecoration extends RecyclerView.ItemDecoration {
private Context mContext;
private Drawable mDivider;
private int mOrientation;
public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;
public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;
//我们通过获取系统属性中的listDivider来添加，在系统中的AppTheme中设置
public static final int[] ATRRS = new int[]{
android.R.attr.listDivider
};
public DividerItemDecoration(Context context, int orientation) {
this.mContext = context;
final TypedArray ta = context.obtainStyledAttributes(ATRRS);
this.mDivider = ta.getDrawable(0);
ta.recycle();
setOrientation(orientation);
}
//设置屏幕的方向
public void setOrientation(int orientation) {
if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) {
throw new IllegalArgumentException("invalid orientation");
}
mOrientation = orientation;
}
@Override
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
super.onDraw(c, parent, state);
if (mOrientation == HORIZONTAL_LIST) {
drawVerticalLine(c, parent, state);
} else {
drawHorizontalLine(c, parent, state);
}
}
//画横线, 这里的parent其实是显示在屏幕显示的这部分
public void drawHorizontalLine(Canvas c, RecyclerView parent, RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
//获得child的布局信息
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
//由于Divider也有长宽高，每一个Item需要向下或者向右偏移
//画竖线
public void drawVerticalLine(Canvas c, RecyclerView parent, RecyclerView.State state) {
int top = parent.getPaddingTop();
int bottom = parent.getHeight() - parent.getPaddingBottom();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
//获得child的布局信息
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
final int left = child.getRight() + params.rightMargin;
final int right = left + mDivider.getIntrinsicWidth();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
super.getItemOffsets(outRect, view, parent, state);
if (mOrientation == HORIZONTAL_LIST) {
//画横线，就是往下偏移一个分割线的高度
outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
} else {
//画竖线，就是往右偏移一个分割线的宽度
outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
}
}
}回调接口
package com.manboker.wb.momentcamime.interf;
import android.view.View;
/**
* Author: aaa
* Date: 2016/11/15 11:40.
*/
public interface IRecyclerItemClickListener {
public void onItemClick(View view, String text);
}修改之后的 MomentCamIME.java
package com.manboker.wb.momentcamime;
import android.inputmethodservice.InputMethodService;
import android.view.KeyEvent;
import android.view.View;
import com.manboker.wb.momentcamime.db.DbUtils;
import com.manboker.wb.momentcamime.interf.IKeyBoard;
import com.manboker.wb.momentcamime.interf.IRecyclerItemClickListener;
import com.manboker.wb.momentcamime.view.CandidateView;
import com.manboker.wb.momentcamime.view.MyKeyboardView;
import java.util.ArrayList;
/**
* Author: aaa
* Date: 2016/11/8 15:58.
*/
public class MomentCamIME extends InputMethodService {
private MyKeyboardView mMyKeyboardView;
private CandidateView mCandidateView;
private IKeyBoard mIKeyBoard = new IKeyBoard() {
@Override
public void setInputText(String text, boolean b) {
if (!b) {
getCurrentInputConnection().commitText(text, 1);
} else {
getCurrentInputConnection().setComposingText(mMyKeyboardView.mInputWord, 1);
}
}
@Override
public void deleteInputOne() {
if (mMyKeyboardView.mInputWord.length() >= 0) {
getCurrentInputConnection().setComposingText(mMyKeyboardView.mInputWord, 1);
}
if (mMyKeyboardView.mInputWord.length() == 0) {
getCurrentInputConnection().deleteSurroundingText(1, 0);
}
}
@Override
public void enter() {
getCurrentInputConnection().sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER));
}
@Override
public void done() {
requestHideSelf(0);
}
@Override
public void setCondiateShow(boolean b, ArrayList<String> words) {
setCandidatesViewShown(b);
if (b) {
mCandidateView.refreshWords(words);
}
}
};
private IRecyclerItemClickListener mIRecyclerItemClickListener = new IRecyclerItemClickListener() {
@Override
public void onItemClick(View view, String text) {
getCurrentInputConnection().commitText(text, 1);
mMyKeyboardView.mInputWord = "";
setCandidatesViewShown(false);
}
};
@Override
public void onInitializeInterface() {
super.onInitializeInterface();
DbUtils.getInstance(this).openDatabase();
}
@Override
public View onCreateInputView() {
mMyKeyboardView = new MyKeyboardView(this);
mMyKeyboardView.setInterface(mIKeyBoard);
return mMyKeyboardView;
}
@Override
public View onCreateCandidatesView() {
mCandidateView = new CandidateView(this);
mCandidateView.setOnRecyclerItemClickListener(mIRecyclerItemClickListener);
return mCandidateView;
}
@Override
public void showWindow(boolean showInput) {
if (mMyKeyboardView != null) {
mMyKeyboardView.mInputWord = "";
setCandidatesViewShown(false);
}
super.showWindow(showInput);
}
}修改之后的 MyKeyboardView.java
package com.manboker.wb.momentcamime.view;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import com.manboker.wb.momentcamime.R;
import com.manboker.wb.momentcamime.db.DbUtils;
import com.manboker.wb.momentcamime.interf.IKeyBoard;
import java.util.ArrayList;
import java.util.Arrays;
/**
* Author: aaa
* Date: 2016/11/8 16:14.
*/
public class MyKeyboardView extends LinearLayout {
private final int LETTER_NUM = 26;//字母数量
private Context mContext;
private IKeyBoard mIKeyBoard;
private Button mButtonA, mButtonB, mButtonC, mButtonD, mButtonE, mButtonF, mButtonG, mButtonH, mButtonI, mButtonJ, mButtonK, mButtonL,
mButtonM, mButtonN, mButtonO, mButtonP, mButtonQ, mButtonR, mButtonS, mButtonT, mButtonU, mButtonV, mButtonW, mButtonX, mButtonY, mButtonZ;
private Button[] mLetterButtons = new Button[]{mButtonA, mButtonB, mButtonC, mButtonD, mButtonE, mButtonF, mButtonG, mButtonH, mButtonI, mButtonJ, mButtonK,
mButtonL, mButtonM, mButtonN, mButtonO, mButtonP, mButtonQ, mButtonR, mButtonS, mButtonT, mButtonU, mButtonV, mButtonW, mButtonX, mButtonY, mButtonZ};
private Integer[] mLetterButtonIds = new Integer[]{
R.id.keyboard_a, R.id.keyboard_b, R.id.keyboard_c, R.id.keyboard_d, R.id.keyboard_e, R.id.keyboard_f, R.id.keyboard_g, R.id.keyboard_h,
R.id.keyboard_i, R.id.keyboard_j, R.id.keyboard_k, R.id.keyboard_l, R.id.keyboard_m, R.id.keyboard_n, R.id.keyboard_o, R.id.keyboard_p,
R.id.keyboard_q, R.id.keyboard_r, R.id.keyboard_s, R.id.keyboard_t, R.id.keyboard_u, R.id.keyboard_v, R.id.keyboard_w, R.id.keyboard_x,
R.id.keyboard_y, R.id.keyboard_z};
private String mLowerletters;//字母小写
private String mUpperletters;//字母大写
private String mLowerNumber;//数字小写
private String mUpperNumber;//数字大写
private ImageButton mIBtnShift, mIBtnDelete, mIBtnDone, mIBtnSpace, mIBtnReturn;
private Button mBtnDot, mBtnComma;
private Button mBtnChange123;
private boolean mCapsLock, mNumberCapsLock;// true - 大写锁定
private View mLetterLayout, mNumberLayout;
public String mInputWord = "";//保存输入法输入的内容
public MyKeyboardView(Context context) {
super(context);
mContext = context;
init();
initABC();
init123();
showLetterLayout(true);
showNumberLayout(false);
}
private void init() {
// 加载布局
LayoutInflater.from(mContext).inflate(R.layout.main, this);
mLetterLayout = findViewById(R.id.main_letter);
mNumberLayout = findViewById(R.id.main_number);
mCapsLock = false;
mNumberCapsLock = false;
mLowerletters = "abcdefghijklmnopqrstuvwxyz";
mUpperletters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
mLowerNumber = "1234567890@#$%&*-=()!\"':;/?";
mUpperNumber = "~±×÷•°`´{}©£€^®¥_+[]¡<>¢|\\¿";
}
/**
* 初始化ABC布局
*/
private void initABC() {
for (int i = 0; i < LETTER_NUM; i++) {
mLetterButtons[i] = (Button) findViewById(mLetterButtonIds[i]);
mLetterButtons[i].setOnClickListener(new MyOnClickListener());
}
mBtnDot = (Button) findViewById(R.id.keyboard_dot);
mBtnDot.setOnClickListener(new MyOnClickListener());
mBtnComma = (Button) findViewById(R.id.keyboard_comma);
mBtnComma.setOnClickListener(new MyOnClickListener());
mIBtnShift = (ImageButton) findViewById(R.id.keyboard_shift);
mIBtnDelete = (ImageButton) findViewById(R.id.keyboard_delete);
mIBtnDone = (ImageButton) findViewById(R.id.keyboard_done);
mIBtnSpace = (ImageButton) findViewById(R.id.keyboard_space);
mIBtnReturn = (ImageButton) findViewById(R.id.keyboard_return);
mIBtnShift.setOnClickListener(new MyOnClickListener());
mIBtnDelete.setOnClickListener(new MyDeleteClickListener());
mIBtnDelete.setOnTouchListener(new MyDeleteClickListener());
mIBtnDone.setOnClickListener(new MyOnClickListener());
mIBtnSpace.setOnClickListener(new MyOnClickListener());
mIBtnReturn.setOnClickListener(new MyOnClickListener());
mBtnChange123 = (Button) findViewById(R.id.keyboard_change_123);
mBtnChange123.setOnClickListener(new MyOnClickListener());
}
private class MyOnClickListener implements OnClickListener {
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.keyboard_a:
case R.id.keyboard_b:
case R.id.keyboard_c:
case R.id.keyboard_d:
case R.id.keyboard_e:
case R.id.keyboard_f:
case R.id.keyboard_g:
case R.id.keyboard_h:
case R.id.keyboard_i:
case R.id.keyboard_j:
case R.id.keyboard_k:
case R.id.keyboard_l:
case R.id.keyboard_m:
case R.id.keyboard_n:
case R.id.keyboard_o:
case R.id.keyboard_p:
case R.id.keyboard_q:
case R.id.keyboard_r:
case R.id.keyboard_s:
case R.id.keyboard_t:
case R.id.keyboard_u:
case R.id.keyboard_v:
case R.id.keyboard_w:
case R.id.keyboard_x:
case R.id.keyboard_y:
case R.id.keyboard_z:
clickLetter(view.getId());
break;
case R.id.keyboard_shift:
clickShift();
break;
case R.id.keyboard_num_shift:
clickNumberShift();
break;
case R.id.keyboard_done:
case R.id.keyboard_num_done:
mIKeyBoard.done();
break;
case R.id.keyboard_space://空格
showCandidateView(mInputWord);
case R.id.keyboard_num_space:
mIKeyBoard.setInputText(mInputWord + " ", false);
mInputWord = "";
break;
case R.id.keyboard_return:
mInputWord = "";
showCandidateView(mInputWord);
case R.id.keyboard_num_return:
mIKeyBoard.enter();
break;
case R.id.keyboard_dot://点
showCandidateView(mInputWord);
case R.id.keyboard_num_dot:
mIKeyBoard.setInputText(mInputWord + ".", false);
mInputWord = "";
break;
case R.id.keyboard_comma://逗号
showCandidateView(mInputWord);
case R.id.keyboard_num_comma:
mIKeyBoard.setInputText(mInputWord + ",", false);
mInputWord = "";
break;
case R.id.keyboard_change_123://切换数字键盘
mIKeyBoard.setInputText(mInputWord, false);
mInputWord = "";
showCandidateView(mInputWord);
showLetterLayout(false);
showNumberLayout(true);
if (mNumberCapsLock) {//大写转换成小写
clickNumberShift();
}
break;
case R.id.keyboard_num_1:
case R.id.keyboard_num_2:
case R.id.keyboard_num_3:
case R.id.keyboard_num_4:
case R.id.keyboard_num_5:
case R.id.keyboard_num_6:
case R.id.keyboard_num_7:
case R.id.keyboard_num_8:
case R.id.keyboard_num_9:
case R.id.keyboard_num_10:
case R.id.keyboard_num_11:
case R.id.keyboard_num_12:
case R.id.keyboard_num_13:
case R.id.keyboard_num_14:
case R.id.keyboard_num_15:
case R.id.keyboard_num_16:
case R.id.keyboard_num_17:
case R.id.keyboard_num_18:
case R.id.keyboard_num_19:
case R.id.keyboard_num_20:
case R.id.keyboard_num_21:
case R.id.keyboard_num_22:
case R.id.keyboard_num_23:
case R.id.keyboard_num_24:
case R.id.keyboard_num_25:
case R.id.keyboard_num_26:
case R.id.keyboard_num_27:
clickNumber(view.getId());
break;
case R.id.keyboard_num_change_abc://切换字母键盘
showNumberLayout(false);
showLetterLayout(true);
if (mCapsLock) {//如果是大写，则转换成小写
clickShift();
}
break;
}
}
}
public void setInterface(IKeyBoard iKeyBoard) {
mIKeyBoard = iKeyBoard;
}
/**
* 点击Shift
*/
private void clickShift() {
mCapsLock = !mCapsLock;
if (mCapsLock) {//大写锁定
mIBtnShift.setImageResource(R.mipmap.sym_keyboard_shift_click);
for (int i = 0; i < LETTER_NUM; i++) {
mLetterButtons[i].setText(String.valueOf(mUpperletters.charAt(i)));
}
} else {
mIBtnShift.setImageResource(R.mipmap.sym_keyboard_shift);
for (int i = 0; i < LETTER_NUM; i++) {
mLetterButtons[i].setText(String.valueOf(mLowerletters.charAt(i)));
}
}
}
/**
* 点击字母按键
*/
private void clickLetter(int id) {
int idx = Arrays.asList(mLetterButtonIds).indexOf(id);
if (idx == -1) {
return;
}
String word = "";
if (mCapsLock) {
word = String.valueOf(mUpperletters.charAt(idx));
} else {
word = String.valueOf(mLowerletters.charAt(idx));
}
mInputWord += word;
mIKeyBoard.setInputText(mInputWord, true);
showCandidateView(mInputWord);
}
private Handler mHandler = new Handler();
private CheckForLongPress mPendingCheckForLongPress = null;
/**
* 删除按钮事件监听
*/
private class MyDeleteClickListener implements OnClickListener, OnTouchListener {
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.keyboard_delete:
if (mInputWord.length() > 0) {
mInputWord = mInputWord.substring(0, mInputWord.length() - 1);
showCandidateView(mInputWord);
}
case R.id.keyboard_num_delete:
mIKeyBoard.deleteInputOne();
break;
}
}
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if (view.getId() == R.id.keyboard_delete || view.getId() == R.id.keyboard_num_delete) {
if (motionEvent.getAction() == MotionEvent.ACTION_UP) {
removeLongPressCallback();
showCandidateView(mInputWord);
} else if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
checkForLongClick();
}
}
return false;
}
}
private void checkForLongClick() {
if (mPendingCheckForLongPress == null) {
mPendingCheckForLongPress = new CheckForLongPress();
}
mHandler.postDelayed(mPendingCheckForLongPress, 1000);
}
class CheckForLongPress implements Runnable {
int currentKeycode = 0;
public void run() {
longPressDelete(currentKeycode);
mHandler.postDelayed(this, 50);
}
}
private void longPressDelete(int keycode) {
mIKeyBoard.deleteInputOne();
if (mInputWord.length() > 0) {
mInputWord = mInputWord.substring(0, mInputWord.length() - 1);
}
}
private void removeLongPressCallback() {
if (mPendingCheckForLongPress != null) {
mHandler.removeCallbacks(mPendingCheckForLongPress);
mPendingCheckForLongPress = null;
}
}
private final int NUMBER_NUM = 27;//数字数量
private Button mButton1, mButton2, mButton3, mButton4, mButton5, mButton6, mButton7, mButton8, mButton9, mButton10, mButton11, mButton12,
mButton13, mButton14, mButton15, mButton16, mButton17, mButton18, mButton19, mButton20, mButton21, mButton22, mButton23, mButton24,
mButton25, mButton26, mButton27;
private Button[] mNumberButtons = new Button[]{mButton1, mButton2, mButton3, mButton4, mButton5, mButton6, mButton7, mButton8, mButton9, mButton10, mButton11,
mButton12, mButton13, mButton14, mButton15, mButton16, mButton17, mButton18, mButton19, mButton20, mButton21, mButton22, mButton23, mButton24,
mButton25, mButton26, mButton27};
private Integer[] mNumberButtonIds = new Integer[]{
R.id.keyboard_num_1, R.id.keyboard_num_2, R.id.keyboard_num_3, R.id.keyboard_num_4, R.id.keyboard_num_5, R.id.keyboard_num_6, R.id.keyboard_num_7,
R.id.keyboard_num_8, R.id.keyboard_num_9, R.id.keyboard_num_10, R.id.keyboard_num_11, R.id.keyboard_num_12, R.id.keyboard_num_13, R.id.keyboard_num_14,
R.id.keyboard_num_15, R.id.keyboard_num_16, R.id.keyboard_num_17, R.id.keyboard_num_18, R.id.keyboard_num_19, R.id.keyboard_num_20, R.id.keyboard_num_21,
R.id.keyboard_num_22, R.id.keyboard_num_23, R.id.keyboard_num_24, R.id.keyboard_num_25, R.id.keyboard_num_26, R.id.keyboard_num_27};
private Button mNumberBtnDot, mNumberBtnComma;
private ImageButton mNumberIBtnShift, mNumberIBtnDelete, mNumberIBtnDone, mNumberIBtnSpace, mNumberIBtnReturn;
private Button mNumberBtnChangeabc;
/**
* 初始化数字键盘
*/
private void init123() {
for (int i = 0; i < NUMBER_NUM; i++) {
mNumberButtons[i] = (Button) findViewById(mNumberButtonIds[i]);
mNumberButtons[i].setOnClickListener(new MyOnClickListener());
}
mNumberBtnDot = (Button) findViewById(R.id.keyboard_num_dot);
mNumberBtnDot.setOnClickListener(new MyOnClickListener());
mNumberBtnComma = (Button) findViewById(R.id.keyboard_num_comma);
mNumberBtnComma.setOnClickListener(new MyOnClickListener());
mNumberIBtnShift = (ImageButton) findViewById(R.id.keyboard_num_shift);
mNumberIBtnDelete = (ImageButton) findViewById(R.id.keyboard_num_delete);
mNumberIBtnDone = (ImageButton) findViewById(R.id.keyboard_num_done);
mNumberIBtnSpace = (ImageButton) findViewById(R.id.keyboard_num_space);
mNumberIBtnReturn = (ImageButton) findViewById(R.id.keyboard_num_return);
mNumberIBtnShift.setOnClickListener(new MyOnClickListener());
mNumberIBtnDelete.setOnClickListener(new MyDeleteClickListener());
mNumberIBtnDelete.setOnTouchListener(new MyDeleteClickListener());
mNumberIBtnDone.setOnClickListener(new MyOnClickListener());
mNumberIBtnSpace.setOnClickListener(new MyOnClickListener());
mNumberIBtnReturn.setOnClickListener(new MyOnClickListener());
mNumberBtnChangeabc = (Button) findViewById(R.id.keyboard_num_change_abc);
mNumberBtnChangeabc.setOnClickListener(new MyOnClickListener());
}
/**
* 点击字母按键
*/
private void clickNumber(int id) {
int idx = Arrays.asList(mNumberButtonIds).indexOf(id);
if (idx == -1) {
return;
}
if (mNumberCapsLock) {
mIKeyBoard.setInputText(String.valueOf(mUpperNumber.charAt(idx)), false);
} else {
mIKeyBoard.setInputText(String.valueOf(mLowerNumber.charAt(idx)), false);
}
}
/**
* 点击Shift
*/
private void clickNumberShift() {
mNumberCapsLock = !mNumberCapsLock;
if (mNumberCapsLock) {//大写锁定
mNumberIBtnShift.setImageResource(R.mipmap.sym_keyboard_shift_click);
for (int i = 0; i < NUMBER_NUM; i++) {
mNumberButtons[i].setText(String.valueOf(mUpperNumber.charAt(i)));
}
} else {
mNumberIBtnShift.setImageResource(R.mipmap.sym_keyboard_shift);
for (int i = 0; i < NUMBER_NUM; i++) {
mNumberButtons[i].setText(String.valueOf(mLowerNumber.charAt(i)));
}
}
}
/**
* 隐藏字母键盘布局
*
* @param b
*/
private void showLetterLayout(boolean b) {
int show = View.VISIBLE;
if (!b) {
show = View.GONE;
}
mLetterLayout.setVisibility(show);
}
/**
* 隐藏数字键盘布局
*
* @param b
*/
private void showNumberLayout(boolean b) {
int show = View.VISIBLE;
if (!b) {
show = View.GONE;
}
mNumberLayout.setVisibility(show);
}
ArrayList<String> words = null;//从数据库中找到的单词列表
/*
* 显示候选词列表
*/
private void showCandidateView(final String word) {
Log.i("aaa", "word=" + word + " size:" + word.length());
if (word.length() <= 0) {
mIKeyBoard.setCondiateShow(false, null);
} else {
final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case 100:
if (words.size() > 0 && mInputWord.length() > 0) {
mIKeyBoard.setCondiateShow(true, words);
}
break;
default:
break;
}
}
};
new Thread() {
@Override
public void run() {
super.run();
words = DbUtils.getInstance(mContext).getCandidateWords(word);
Message msg = new Message();
msg.obj = 0;
msg.what = 100;
handler.sendMessage(msg);
}
}.start();
}
}
}修改后候选词View CandidateView.java
package com.manboker.wb.momentcamime.view;
import android.content.Context;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.manboker.wb.momentcamime.R;
import com.manboker.wb.momentcamime.interf.IRecyclerItemClickListener;
import java.util.ArrayList;
/**
* Author: aaa
* Date: 2016/11/11 09:17.
*/
public class CandidateView extends LinearLayout {
private Context mContext;
private RecyclerView mRecyclerView;
private ArrayList<String> mDatas;
private MyAdapter mMyAdapter;
private IRecyclerItemClickListener mIRecyclerItemClickListener;
public CandidateView(Context context) {
super(context);
mContext = context;
initData();
init();
}
private void initData() {
mDatas = new ArrayList<String>();
mMyAdapter = new MyAdapter();
}
private void init() {
LayoutInflater.from(mContext).inflate(R.layout.candidate, this);
mRecyclerView = (RecyclerView) findViewById(R.id.candiate_rv);
mRecyclerView.setLayoutManager(new LinearLayoutManager(mContext, LinearLayoutManager.HORIZONTAL, false));//水平放置
mRecyclerView.setAdapter(mMyAdapter);
//这句就是添加我们自定义的分隔线
mRecyclerView.addItemDecoration(new DividerItemDecoration(mContext, DividerItemDecoration.HORIZONTAL_LIST));
}
public void refreshWords(ArrayList<String> words) {
mMyAdapter.setWords(words);
}
public void setOnRecyclerItemClickListener(IRecyclerItemClickListener iRecyclerItemClickListener) {
mIRecyclerItemClickListener = iRecyclerItemClickListener;
}
private class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.recylerview_item, parent, false);
MyViewHolder viewHolder = new MyViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(MyViewHolder holder, final int position) {
if (mDatas.size() <= 0) {
return;
}
holder.mItemTextView.setText(mDatas.get(position));
holder.mItemTextView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mIRecyclerItemClickListener.onItemClick(view, mDatas.get(position));
}
});
}
public void setWords(ArrayList<String> words) {
mDatas = words;
notifyDataSetChanged();
}
@Override
public int getItemCount() {
return mDatas.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
public TextView mItemTextView;
public MyViewHolder(View itemView) {
super(itemView);
mItemTextView = (TextView) itemView.findViewById(R.id.recyclerview_item_tv);
}
}
}
}以上实现了后输入法的只要功能，基本逻辑也是没有问题的，但是由于没有严格的测试，也许会有部分逻辑问题或者BUG，希望各位朋友仔细测试使用。以上代码仅供参考。
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