這是之前公司項目，需要用身份證來查詢，絕大部分人的身份證是純數字的，這個可以直接在EditText設置inputType，輸入法彈出時會自動切換到數字鍵盤，但是，碰到身份證含有X的，這就麻煩了，得手動切換到英文輸入界面，然後還得再切換回來，甚至還牽扯到大小寫處理，雖然不算是個問題，但是互聯網思維嘛，人性化！所以，本着不怕麻煩的精神，還是學習了自定義個鍵盤來提升用戶體驗
需要說的東西感覺不多
老規矩，先看效果：
首先，先新建個xml（應該一看就明白，沒什麼可說的），來定義我們鍵盤上要擺放的東西(codes爲ASCII碼)
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyHeight="50dp"
android:keyWidth="25%p">
<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="9995"
android:keyEdgeFlags="right"
android:keyLabel="重輸" />
</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="-5"
android:keyLabel="刪除"
android:isRepeatable="true"
android:keyEdgeFlags="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="88"
android:keyLabel="X"
android:keyEdgeFlags="right"/>
</Row>
<Row>
<Key
android:codes="9994"
android:keyLabel="←" />
<Key
android:codes="48"
android:keyLabel="0" />
<Key
android:codes="9996"
android:keyLabel="→" />
<Key
android:codes="-4"
android:keyLabel="√"
android:keyEdgeFlags="right"/>
</Row>
</Keyboard>然後新建個類，CustomKeyboard，來控制我們按鍵的操作
public class CustomKeyboard {
private EditText mEdittext;
private KeyboardView mKeyboardView;
private Keyboard mKeyboard;
private IKeyboardFinish mIKeyboardFinish;
public CustomKeyboard(Context context, KeyboardView keyboardView, EditText editText, IKeyboardFinish iKeyboardFinish){
this.mEdittext = editText;
this.mIKeyboardFinish = iKeyboardFinish;
mKeyboard = new Keyboard(context, R.xml.keyboard);//從xml中加載自定義的鍵盤
mKeyboardView = keyboardView;
mKeyboardView.setKeyboard(mKeyboard);
mKeyboardView.setPreviewEnabled(false);
mKeyboardView.setOnKeyboardActionListener(actionListener);
}
private KeyboardView.OnKeyboardActionListener actionListener = new KeyboardView.OnKeyboardActionListener() {
@Override
public void onPress(int primaryCode) {
}
@Override
public void onRelease(int primaryCode) {
}
@Override
public void onKey(int primaryCode, int[] keyCodes) {
Editable editable = mEdittext.getText();
int index = mEdittext.getSelectionStart();//光標位置
switch (primaryCode){
case Keyboard.KEYCODE_DELETE://回退
if (editable != null && editable.length() > 0){
if (index > 0){
editable.delete(index - 1,index);
}
}
break;
case Keyboard.KEYCODE_DONE://完成
//hideKeyboard();
mIKeyboardFinish.inputFinish();//回調
break;
case 9995://重輸
mEdittext.setText("");
break;
case 9994://左移
if (index > 0){
mEdittext.setSelection(index - 1);
}
break;
case 9996://右移
if (index < mEdittext.length()){
mEdittext.setSelection(index + 1);
}
break;
default:
editable.insert(index,Character.toString((char)primaryCode));
break;
}
}
@Override
public void onText(CharSequence text) {
}
@Override
public void swipeLeft() {
}
@Override
public void swipeRight() {
}
@Override
public void swipeDown() {
}
@Override
public void swipeUp() {
}
};
public void showKeyboard(){
if(mKeyboardView.getVisibility() != View.VISIBLE){
mKeyboardView.setVisibility(View.VISIBLE);
}
}
public void hideKeyboard(){
if (mKeyboardView.getVisibility() == View.VISIBLE){
mKeyboardView.setVisibility(View.GONE);
}
}
}定義個回調接口：
public interface IKeyboardFinish {
void inputFinish();
}然後在Activity的佈局文件中定義
<android.inputmethodservice.KeyboardView
android:id="@+id/customKeyboard"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:focusable="true"
android:focusableInTouchMode="true"
android:shadowRadius="1.0" />後臺關鍵代碼：
private MaterialEditText edtNum;//大名鼎鼎的MaterialEditText，github上一搜便知
private Context mContext = this;
private CustomKeyboard mCustomKeyboard;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
edtNum = (MaterialEditText) findViewById(R.id.edtNum);
//屏蔽掉系統默認輸入法
if (Build.VERSION.SDK_INT <= 10) {
edtNum.setInputType(InputType.TYPE_NULL);
} else {
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
try {
Class<EditText> cls = EditText.class;
Method setShowSoftInputOnFocus = cls.getMethod("setShowSoftInputOnFocus", boolean.class);
setShowSoftInputOnFocus.setAccessible(true);
setShowSoftInputOnFocus.invoke(edtNum, false);
} catch (Exception e) {
e.printStackTrace();
}
}
//初始化鍵盤，傳入回調接口，以便在此處進行完成後的操作。默認就顯示鍵盤
KeyboardView keyboardView = (KeyboardView) findViewById(R.id.customKeyboard);
mCustomKeyboard = new CustomKeyboard(mContext, keyboardView, edtNum, iKeyboardFinish);
mCustomKeyboard.showKeyboard();
edtNum.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
mCustomKeyboard.showKeyboard();
return false;
}
});
}
/**
* 輸入完成
*/
private IKeyboardFinish iKeyboardFinish = new IKeyboardFinish() {
@Override
public void inputFinish() {
String idcard = edtNum.getText().toString();
Toast.makeText(mContext,idcard,Toast.LENGTH_SHORT).show();
}
};PS：鍵盤是android默認的樣式，沒有研究怎麼改樣式，知道的大xiong弟麻煩留言說說唄