Android EditText与RadioButton混用

需要实现的效果
可单选、单选某一条可编辑
xml布局：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorBg"
    android:focusable="true"
    android:focusableInTouchMode="true"
    tools:context=".ui.activity.other.SignTypeActivity">

    <android.support.v4.widget.NestedScrollView
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/toolbar"
        tools:ignore="UnknownIdInLayout">

        <LinearLayout
            android:id="@+id/llSignNormal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dimen_10"
            android:orientation="vertical">


            <RadioGroup
                android:id="@+id/rgE"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="@dimen/dimen_5"
                android:divider="#F2F2F2"
                android:showDividers="middle">


                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:paddingStart="@dimen/dimen_20"
                    android:text="@string/sign_normal"
                    android:textColor="@color/text_gray2"
                    android:textSize="@dimen/text_12_size" />


                <RadioButton
                    android:id="@+id/rbNormal"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/dimen_50"
                    android:layout_gravity="center_vertical"
                    android:layout_marginTop="@dimen/dimen_5"
                    android:background="@color/white"
                    android:button="@null"
                    android:drawableBottom="@drawable/sender_home_bg_blue"
                    android:drawableRight="@drawable/icon_dispatcher_selector"
                    android:gravity="left|center_vertical"
                    android:paddingEnd="@dimen/dimen_20"
                    android:paddingStart="@dimen/dimen_20"
                    android:text="@string/sign_normal"
                    android:textColor="@color/colorBlack"
                    android:textSize="@dimen/text_16_size" />
                <View
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/dimen_1"
                    android:background="@color/line" />
            </RadioGroup>

            <LinearLayout
                android:id="@+id/llEO"
                android:layout_width="match_parent"
                android:layout_height="@dimen/dimen_50"
                android:background="@color/white"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:paddingStart="@dimen/dimen_20"
                    android:text="@string/sign_e7"
                    android:textColor="@color/colorBlack"
                    android:textSize="@dimen/text_16_size" />

                <EditText
                    android:id="@+id/etE99"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_marginEnd="@dimen/dimen_10"
                    android:layout_marginStart="@dimen/dimen_10"
                    android:layout_weight="2"
                    android:background="@null"
                    android:textSize="@dimen/text_14_size"
                    android:hint="填写原因,少于20个字"
                    android:maxLength="20"
                    android:maxLines="1" />

                <RadioButton
                    android:id="@+id/rbE99"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_gravity="center_vertical"
                    android:layout_weight="1"
                    android:background="@color/white"
                    android:button="@null"
                    android:drawableBottom="@drawable/sender_home_bg_blue"
                    android:drawableRight="@drawable/icon_dispatcher_selector"
                    android:gravity="left|center_vertical"
                    android:paddingEnd="@dimen/dimen_20"
                    android:paddingStart="@dimen/dimen_20"
                    android:textColor="@color/colorBlack"
                    android:textSize="@dimen/text_16_size" />
            </LinearLayout>
        </LinearLayout>
    </android.support.v4.widget.NestedScrollView>
</android.support.constraint.ConstraintLayout>

点击编辑框，清除原来的选择

 //编辑
 etE99.setOnClickListener({ v ->
      val et = v as EditText
      if (!et.isCursorVisible) {
             etGetFocus(et)
      }
 })
 etE99.onFocusChangeListener = OnFocusChangeListener { v, hasFocus ->
            if (hasFocus) {
                clearRbutton()
                etGetFocus(etE99)
            } else {
                etLostFocus(etE99)
            }
        }

 private fun clearRbutton() {
        if (rbNormal.isChecked) {
            rbNormal.isChecked = false
        } 
}

   private fun etGetFocus(etE99: EditText?) {
        etE99!!.requestFocus()
        etE99.post(Runnable {
            val manager = etE99.context.getSystemService(
                    Context.INPUT_METHOD_SERVICE) as InputMethodManager
            manager.showSoftInput(etE99, 0)
        })
        // 光标置于文字最后
        etE99.setSelection(etE99.text.toString().length)
    }

 private fun etLostFocus(etE99: EditText?) {
        etE99!!.clearFocus()
        val manager = etE99.context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        manager.hideSoftInputFromWindow(etE99.windowToken, 0)

    }

/**
     * 点击屏幕其他地方，使 etName 失去焦点（EditText）
     */
    override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
        if (ev.action == MotionEvent.ACTION_DOWN) {
            // 获取当前焦点所在的控件；
            val view = currentFocus
            if (view != null && view is EditText) {
                val r = Rect()
                view.getGlobalVisibleRect(r)
                val rawX = ev.rawX.toInt()
                val rawY = ev.rawY.toInt()

                // 判断点击的点是否落在当前焦点所在的 view 上；
                if (!r.contains(rawX, rawY)) {
                    view.clearFocus()
                }
            }
        }
        return super.dispatchTouchEvent(ev)
    }

效果：

11.png 22.png