安卓实战：自定义软键盘(2)，kotlinlambda匿名内部类

android:keyHeight&＃61;“50dp”

android:keyWidth&＃61;“25%p” //一行四个按键

android:horizontalGap&＃61;“1px” //键盘与键盘间水平方向分割

android:verticalGap&＃61;“1px”> //键盘与键盘间垂直方向分割

//数字键1

android:codes&＃61;“50” android:keyLabel&＃61;“2”/> //数字键2

//数字键3

//删除键

//数字键4

//数字键5

//数字键6

//确定键&＃xff0c;设置较大

//数字键7

//数字键8

//数字键9

//清零键

//0键

//.键

然后是逻辑编写&＃xff1a;

KeyboardUtils.java

package com.example.mytally.utils;

import android.inputmethodservice.Keyboard;

import android.inputmethodservice.KeyboardView;

import android.text.Editable;

import android.text.InputType;

import android.view.View;

import android.widget.EditText;

import com.example.mytally.R;

public class KeyBoardUtils {

private final Keyboard k1; //自定义键盘

private KeyboardView keyboardView;

private EditText editText; //设置一个变量EditText使得输入处随软键盘输入变化

//生成两者的构造方法

public interface OnEnsureListener{

public void onEnsure();

}

OnEnsureListener onEnsureListener;

public void setOnEnsureListener(OnEnsureListener onEnsureListener) {

this.onEnsureListener &＃61; onEnsureListener;

}

public KeyBoardUtils(KeyboardView keyboardView, EditText editText) {

this.keyboardView &＃61; keyboardView;

this.editText &＃61; editText;

this.editText.setInputType(InputType.TYPE_NULL); //取消弹出系统键盘

k1 &＃61; new Keyboard(this.editText.getContext(), R.xml.key); //获取自定义键盘的对象

this.keyboardView.setKeyboard(k1); //设置要显示键盘的样式

this.keyboardView.setEnabled(true);

this.keyboardView.setPreviewEnabled(false); //能进行预览

this.keyboardView.setOnKeyboardActionListener(listener); //设置键盘按钮被点击了的监听

}

KeyboardView.OnKeyboardActionListener listener &＃61; new KeyboardView.OnKeyboardActionListener() {

&＃64;Override

public void onPress(int primaryCode) {

}

&＃64;Override

public void onRelease(int primaryCode) {

}

&＃64;Override

public void onKey(int primaryCode, int[] keyCodes) {

Editable editable &＃61; editText.getText();

int start &＃61; editText.getSelectionStart();

switch (primaryCode) {

case Keyboard.KEYCODE_DELETE: //点击了删除键

if (editable!&＃61;null &&editable.length()>0) {

if (start>0) {

editable.delete(start-1,start);

}
lectionStart();

switch (primaryCode) {

case Keyboard.KEYCODE_DELETE: //点击了删除键

if (editable!&＃61;null &&editable.length()>0) {

if (start>0) {

editable.delete(start-1,start);

}