Android 自定义键盘不起作用并显示系统键盘

问题描述

我创建了一个自定义键盘，但没有在显示系统关键字的编辑文本中显示。我
这是我的代码： BasicOnKeyboardActionListener

import android.app.Activity
import android.app.Dialog
import android.inputmethodservice.KeyboardView
import android.text.Editable
import android.text.InputType
import android.text.TextWatcher
import android.view.KeyEvent
import android.view.View
import android.view.WindowManager
import android.widget.EditText
import androidx.core.view.isGone
import androidx.core.view.isVisible


class BasicOnKeyboardActionListener(
    private val activity: Activity,private val keyboardView: KeyboardView
) : KeyboardView.OnKeyboardActionListener {

    override fun swipeRight() {

    }

    override fun onPress(p0: Int) {
    }

    override fun onRelease(p0: Int) {
    }

    override fun swipeLeft() {
    }

    override fun swipeUp() {
    }

    override fun swipeDown() {
    }

    override fun onKey(primaryCode: Int,p1: IntArray?) {
        val eventTime = System.currentTimeMillis()
        val event = KeyEvent(
            eventTime,eventTime,KeyEvent.ACTION_DOWN,primaryCode,KeyEvent.FLAG_SOFT_KEYBOARD or KeyEvent.FLAG_KEEP_TOUCH_MODE
        )


        activity.dispatchKeyEvent(event)
    }

    override fun onText(p0: CharSequence?) {
    }

    fun registerEditText(edittext: EditText?) {
        with(edittext) {
            this?.addTextChangedListener(object : TextWatcher {
                override fun beforeTextChanged(
                    s: CharSequence,start: Int,count: Int,after: Int
                ) {
                }

                override fun onTextChanged(
                    s: CharSequence,before: Int,count: Int
                ) {
                }

                override fun afterTextChanged(editable: Editable) {
                    val mS = editable.subSequence(0,editable.length)
                    if (mS.toString() == "" || mS.toString() == null) {
                        return
                    }

                    if (editable.isNotEmpty() && mS.toString().contains("=")) {
                        editable.replace(editable.length - 1,editable.length,"")
                    }
                }
            })

            this!!.onFocuschangelistener = View.OnFocuschangelistener { v,hasFocus ->
                if (hasFocus) showCustomKeyboard(v) else hideCustomKeyboard()
            }

            setonTouchListener { view,event ->
                val editableText = view as EditText
                val inputType = editableText.inputType

                with(editableText) {
                    setInputType(InputType.TYPE_NULL)
                    onTouchEvent(event)
                    setInputType(inputType)
                }

                true
            }
        }
    }

    private fun hideCustomKeyboard() {
        with(keyboardView) {
            isGone = true
            isEnabled = false
        }
    }

    private fun showCustomKeyboard(view: View?) {
        with(keyboardView) {
            isVisible = true
            isEnabled = true
        }




        view?.let {





            activity.getwindow()!!.setSoftInputMode(WindowManager.LayoutParams.soFT_INPUT_STATE_ALWAYS_HIDDEN)




        }


    }
}

这里是bottomsheetdialogfragmentListDialogFragment：

这是我的bottomsheetdialogfragmentListDialogFragment，我在其中声明了主要活动edittext。

import android.app.Dialog
import android.inputmethodservice.Keyboard
import android.os.Bundle
import android.view.View
import android.widget.EditText
import com.google.android.material.bottomsheet.BottomSheetDialogFragment
import kotlinx.android.synthetic.main.keyboard_view.*


// Todo: Customize parameter argument names
const val ARG_ITEM_COUNT = "item_count"

/**
 *
 * A fragment that shows a list of items as a modal bottom sheet.
 *
 * You can show this modal bottom sheet from your activity like this:
 * <pre>
 *    bottomsheetdialogfragmentListDialogFragment.newInstance(30).show(supportFragmentManager,"dialog")
 * </pre>
 */
class bottomsheetdialogfragmentListDialogFragment : BottomSheetDialogFragment() {


    private  lateinit var edit: EditText


    private val keyboardListener by lazy {
        BasicOnKeyboardActionListener(activity ?: requireActivity(),keyboard_view)
    }

    private val customKeyboard by lazy {
        Keyboard(requireContext(),R.xml.number_pad)
    }

    override fun onViewCreated(view: View,savedInstanceState: Bundle?) {
        super.onViewCreated(view,savedInstanceState)
        registerKeyboardEvent()
        setCustomKeyboard()

        edit = view.findViewById(R.id.board) as EditText
    }

    private fun setCustomKeyboard() {
        with(keyboard_view) {
            isPreviewEnabled = false
            keyboard = customKeyboard
            setonKeyboardActionListener(keyboardListener)
        }
    }

    private fun registerKeyboardEvent() {
        with(keyboardListener) {
            registerEditText(edit)


        }
    }

}

清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.a.customkeyboard">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service
            android:name=".BasicOnKeyboardActionListener"
            android:label="Keyboard"
            android:permission="android.permission.BIND_INPUT_METHOD">

            <intent-filter>
                <action android:name="android.view.InputMethod"/>
            </intent-filter>

            <Meta-data
                android:name="android.view.im"
                android:resource="@xml/method"/>

        </service>
    </application>

</manifest>

键盘 Xml

<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="20%p"
    android:horizontalGap="5dp"
    android:verticalGap="5dp"
    android:keyHeight="60dp">


    <Row>
        <Key android:codes="55" android:keyLabel="7" android:keyEdgeFlags="left"/>
        <Key android:codes="56" android:keyLabel="8"/>
        <Key android:codes="57" android:keyLabel="9"/>
        <Key android:codes="10" android:keyLabel="Next"/>
        <Key android:keyLabel="13/16" android:keyOutputText="13/16"/>
        <Key android:keyOutputText="7/8" android:keyLabel="7/8"/>
        <Key android:keyOutputText="15/16" android:keyLabel="15/16"/>
        <Key android:codes="-4" android:keyLabel="C" android:keyEdgeFlags="right"/>
    </Row>

    <Row>
        <Key android:codes="52" android:keyLabel="4" android:keyEdgeFlags="left"/>
        <Key android:codes="53" android:keyLabel="5"/>
        <Key android:codes="54" android:keyLabel="6"/>
        <Key android:codes="43" android:keyLabel="+"/>
        <Key android:keyOutputText="9/16" android:keyLabel="9/16"/>
        <Key android:keyOutputText="5/8" android:keyLabel="5/8"/>
        <Key android:keyOutputText="11/16" android:keyLabel="11/16"/>
        <Key android:keyOutputText="3/4" android:keyLabel="3/4" android:keyEdgeFlags="right"/>
    </Row>

    <Row>
        <Key android:codes="49" android:keyLabel="1" android:keyEdgeFlags="left"/>
        <Key android:codes="50" android:keyLabel="2"/>
        <Key android:codes="51" android:keyLabel="3"/>
        <Key android:codes="45" android:keyLabel="-"/>
        <Key android:keyOutputText="5/16" android:keyLabel="5/16"/>
        <Key android:keyOutputText="3/8" android:keyLabel="3/8"/>
        <Key android:keyOutputText="7/16" android:keyLabel="7/16"/>
        <Key android:keyOutputText="1/2" android:keyLabel="1/2" android:keyEdgeFlags="right"/>
    </Row>

    <Row>
        <Key android:codes="48" android:keyLabel="0" android:keyEdgeFlags="left"/>
        <Key android:codes="46" android:keyLabel="."/>
        <Key android:codes="-5" android:keyLabel="Back" />
        <Key android:keyOutputText="1/16" android:keyLabel="1/16"/>
        <Key android:keyOutputText="1/8" android:keyLabel="1/8"/>
        <Key android:keyOutputText="3/16" android:keyLabel="3/16"/>
        <Key android:keyOutputText="1/4" android:keyLabel="1/4" android:keyEdgeFlags="right"/>
    </Row>

</Keyboard>

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

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