Android 自定义数字虚拟键盘

大概两年没写文章了，有些生疏，不知如何动笔，很早以前有过转行的想法，想过考公务员，所以重心不在程序上。近期通过内推的形式入职了一家大公司（社保公积金缴全额，双休，带薪十三天年假，少加班），这么好的福利加上这几年的颠沛流离让我有了稳定下来的想法，大概以后就专心写代码了吧。打工嘛，无非是多赚点钱，生活过得更好是吧，于是有了这篇分享，下面开始搬砖。

第一步：写布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:mtv="http://schemas.android.com/apk/res-auto"android:layout_width="match_parent"android:layout_height="match_parent"android:background="?attr/com_etnet_keyboard_bg"android:orientation="horizontal" ><LinearLayoutandroid:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="3"android:orientation="vertical" ><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="0dp"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_marginTop="1dp"android:layout_weight="1" ><Buttonandroid:id="@+id/keyboard_1"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="1"android:textColor="?attr/com_etnet_keypad_text" /><Buttonandroid:id="@+id/keyboard_2"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_weight="1"android:minHeight="50dp"android:text="2"android:textColor="?attr/com_etnet_keypad_text" /><Buttonandroid:id="@+id/keyboard_3"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="3"android:textColor="?attr/com_etnet_keypad_text" /></LinearLayout><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="0dp"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_marginTop="1dp"android:layout_weight="1" ><Buttonandroid:id="@+id/keyboard_4"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="4"android:textColor="?attr/com_etnet_keypad_text" /><Buttonandroid:id="@+id/keyboard_5"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_weight="1"android:minHeight="50dp"android:text="5"android:textColor="?attr/com_etnet_keypad_text" /><Buttonandroid:id="@+id/keyboard_6"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="6"android:textColor="?attr/com_etnet_keypad_text" /></LinearLayout><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="0dp"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_marginTop="1dp"android:layout_weight="1" ><Buttonandroid:id="@+id/keyboard_7"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="7"android:textColor="?attr/com_etnet_keypad_text" /><Buttonandroid:id="@+id/keyboard_8"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_weight="1"android:minHeight="50dp"android:text="8"android:textColor="?attr/com_etnet_keypad_text" /><Buttonandroid:id="@+id/keyboard_9"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="9"android:textColor="?attr/com_etnet_keypad_text" /></LinearLayout><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="0dp"android:layout_marginBottom="1dp"android:layout_marginLeft="1dp"android:layout_marginRight="1dp"android:layout_marginTop="1dp"android:layout_weight="1" ><LinearLayoutandroid:layout_width="0dp"android:layout_weight="2"android:layout_height="match_parent"android:layout_marginRight="1dp"><Buttonandroid:id="@+id/keyboard_negative"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:layout_marginRight="1dp"android:visibility="gone"android:text="-"/><Buttonandroid:id="@+id/keyboard_0"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="0"android:textColor="?attr/com_etnet_keypad_text" /></LinearLayout><Buttonandroid:id="@+id/keyboard_00"style="@style/com_etnet_keyboard_numbers"android:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:minHeight="50dp"android:text="00"android:textColor="?attr/com_etnet_keypad_text" /></LinearLayout></LinearLayout><LinearLayoutandroid:layout_width="0dp"android:layout_height="fill_parent"android:layout_weight="1"android:layout_marginTop="1dp"android:layout_marginRight="1dp"android:layout_marginBottom="1dp"android:orientation="vertical" ><LinearLayoutandroid:id="@+id/keyboard_back"android:layout_width="fill_parent"android:layout_height="0dp"android:layout_weight="1"android:background="?attr/com_etnet_keyboard_num_selector"android:gravity="center"android:minHeight="50dp" ><ImageViewandroid:id="@+id/keyboard_back_iv"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center"android:scaleType="fitCenter"android:src="?attr/com_etnet_keyboard_back" /></LinearLayout><Buttonandroid:id="@+id/keyboard_search"android:layout_width="fill_parent"android:layout_height="0dp"android:layout_marginTop="1dp"android:layout_weight="1"android:background="#FF007AFF"android:minHeight="50dp"android:text="@string/com_etnet_keyboard_search"android:textColor="@color/com_etnet_white" /></LinearLayout></LinearLayout>

第二步：相关样式资源

<style name="com_etnet_keyboard_numbers"><item name="android:textSize">20sp</item><item name="android:gravity">center</item><item name="android:background">?attr/com_etnet_keyboard_num_selector</item><item name="android:textStyle">bold</item></style>

<item name="com_etnet_keyboard_num_selector">@drawable/com_etnet_keyboard_num_selector</item>

<selector xmlns:android="http://schemas.android.com/apk/res/android" ><item android:state_pressed="true" ><color android:color="#DEE2E2"/></item><item ><color android:color="#F2F2F2"/></item>
</selector>

第三步：自定义View

public class ForexComparisonKeyboard extends PopupWindow {private View view;Button keyboard_btn1, keyboard_btn2, keyboard_btn3, keyboard_btn4,keyboard_btn5, keyboard_btn6, keyboard_btn7, keyboard_btn8,keyboard_btn9, keyboard_btn0, keyboard_btn_search, keyboard_btn00;LinearLayout keyboard_btn_back, porfolio_ll, keypad;public EditText focusEdit;private onTextChangeListener textChangeListener;public interface onTextChangeListener {void changeText(String text);}private onCloseListener closelistener;public interface onCloseListener {void close();}public void setOnTextEditListener(onTextChangeListener listener) {this.textChangeListener = listener;}@SuppressLint("WrongViewCast")public ForexComparisonKeyboard(RefreshContentFragment f, EditText fEdit, onCloseListener listener) {focusEdit = fEdit;closelistener = listener;view = LayoutInflater.from(CommonUtils.curActivity).inflate(R.layout.com_etnet_porfolio_keyboard, null);setContentView(view);disableShowInput(fEdit);this.setWidth(LayoutParams.MATCH_PARENT);this.setHeight(LayoutParams.WRAP_CONTENT);porfolio_ll = (LinearLayout) view.findViewById(R.id.add2por);keypad = (LinearLayout) view.findViewById(R.id.keypad);keypad.getLayoutParams().height = CommonUtils.screenHeight / 3;keyboard_btn1 = (Button) view.findViewById(R.id.keyboard_1);keyboard_btn2 = (Button) view.findViewById(R.id.keyboard_2);keyboard_btn3 = (Button) view.findViewById(R.id.keyboard_3);keyboard_btn4 = (Button) view.findViewById(R.id.keyboard_4);keyboard_btn5 = (Button) view.findViewById(R.id.keyboard_5);keyboard_btn6 = (Button) view.findViewById(R.id.keyboard_6);keyboard_btn7 = (Button) view.findViewById(R.id.keyboard_7);keyboard_btn8 = (Button) view.findViewById(R.id.keyboard_8);keyboard_btn9 = (Button) view.findViewById(R.id.keyboard_9);keyboard_btn0 = (Button) view.findViewById(R.id.keyboard_0);keyboard_btn00 = (Button) view.findViewById(R.id.keyboard_00);CommonUtils.setTextSize(keyboard_btn1, 18);CommonUtils.setTextSize(keyboard_btn2, 18);CommonUtils.setTextSize(keyboard_btn3, 18);CommonUtils.setTextSize(keyboard_btn4, 18);CommonUtils.setTextSize(keyboard_btn5, 18);CommonUtils.setTextSize(keyboard_btn6, 18);CommonUtils.setTextSize(keyboard_btn7, 18);CommonUtils.setTextSize(keyboard_btn8, 18);CommonUtils.setTextSize(keyboard_btn9, 18);CommonUtils.setTextSize(keyboard_btn0, 18);CommonUtils.setTextSize(keyboard_btn00, 18);keyboard_btn00.setText(".");keyboard_btn_back = (LinearLayout) view.findViewById(R.id.keyboard_back);keyboard_btn_search = (Button) view.findViewById(R.id.keyboard_search);CommonUtils.setTextSize(keyboard_btn_search, 20);Button[] numbtn = {keyboard_btn0, keyboard_btn1, keyboard_btn2,keyboard_btn3, keyboard_btn4, keyboard_btn5, keyboard_btn6,keyboard_btn7, keyboard_btn8, keyboard_btn9};for (int i = 0; i < numbtn.length; i++) {final int j = i;numbtn[i].setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (focusEdit != null) {focusEdit.append(String.valueOf(j));if (!focusEdit.hasFocus()) {focusEdit.requestFocus();}}}});}keyboard_btn00.setOnClickListener(onclick);keyboard_btn_back.setOnClickListener(onclick);keyboard_btn_search.setOnClickListener(onclick);keyboard_btn_search.setText(CommonUtils.getString(R.string.com_etnet_keyboard_search));porfolio_ll.setVisibility(View.GONE);}OnClickListener onclick = new OnClickListener() {@Overridepublic void onClick(View v) {int id = v.getId();if (id == R.id.keyboard_search) {//搜索if (textChangeListener != null) {textChangeListener.changeText(focusEdit.getText().toString());}} else if (id == R.id.keyboard_back) {//退格按钮if (focusEdit == null) return;int st = focusEdit.getSelectionStart();int end = focusEdit.getSelectionEnd();if (st == end) {if (st > 0) {focusEdit.getText().delete(st - 1, end);}} else {focusEdit.getText().delete(st, end);}} else if (id == R.id.keyboard_00) {//小数点String tag = keyboard_btn00.getText().toString();if (tag.equals(".")) {String str = focusEdit.getText().toString();if (!str.contains(".")) {if (focusEdit != null) {focusEdit.append(tag);if (!focusEdit.hasFocus()) {focusEdit.requestFocus();}}}}}}};/*** 禁掉系统键盘，但要显示光标** @param editText*/public void disableShowInput(EditText editText) {if (android.os.Build.VERSION.SDK_INT <= 10) {editText.setInputType(InputType.TYPE_NULL);} else {Class<EditText> cls = EditText.class;Method method;try {method = cls.getMethod("setShowSoftInputOnFocus", boolean.class);method.setAccessible(true);method.invoke(editText, false);} catch (Exception e) {//TODO: handle exception}try {method = cls.getMethod("setSoftInputShownOnFocus", boolean.class);method.setAccessible(true);method.invoke(editText, false);} catch (Exception e) {//TODO: handle exception}}editText.setTextIsSelectable(false);//禁止复制粘贴等操作editText.setLongClickable(false);}public void show(View parent) {showAtLocation(parent, Gravity.BOTTOM, 0, 0);}
}

第四步：代码中调用

 //初始化，input是你要操作的EditTextmKeyboard = new ForexComparisonKeyboard(this, input, new ForexComparisonKeyboard.onCloseListener() {@Overridepublic void close() {showEditMode();}});//获取焦点，解决EditText第一次点击无响应mKeyboard.focusEdit.requestFocus();// 设置PopupWindow点击外部消失mKeyboard.setOutsideTouchable(true);mKeyboard.setTouchable(true);mKeyboard.setOnTextEditListener(new ForexComparisonKeyboard.onTextChangeListener() {@Overridepublic void changeText(String text) {Log.e("changeText==",text);showEditMode();}});//关闭对话框private void showEditMode() {if (mKeyboard.isShowing()) {mKeyboard.dismiss();}}//响应back事件@Overridepublic boolean onBackPressed() {if (mKeyboard != null & mKeyboard.isShowing()) {mKeyboard.dismiss();}return true;}//调用mKeyboard.show(getView());

效果图：

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