popwindow弹窗自适应

1、引入第三方库

implementation 'io.github.razerdp:BasePopup:3.2.0'

2、代码

class EditContentPopup : BasePopupWindow {
    constructor(activity: Activity) : super(activity)
    constructor(fragment: Fragment) : super(fragment)

    private var mBinding: DialogEditContentBinding? = null


    override fun onViewCreated(contentView: View) {
        super.onViewCreated(contentView)
        mBinding = DataBindingUtil.bind(contentView)

        mBinding?.apply {
            setAutoShowKeyboard(etContent, true)
            setShowKeyboardDelay(150)
            setOnKeyboardChangeListener { r, b ->
                val layoutParams = btnSave.layoutParams as ConstraintLayout.LayoutParams
                layoutParams.setMargins(0, 0, 0, r.height() + 12.dp)
                btnSave.layoutParams = layoutParams
            }

            ivClose.setOnClickListener { dismiss() }
        }

    }

    fun show(
        code: String,
        id: Int,
        title: String,
        content: String
   ) {


        showPopupWindow()
    }



    init {
        setContentView(R.layout.dialog_edit_content)
        //状态栏不遮挡
        setOverlayStatusbar(false)
    }

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/cst_whole"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="bottom"
        android:background="@color/white">

        <View
            android:id="@+id/view_topbg"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:background="@drawable/shape_f5_fb_top_radius8"
            app:layout_constraintTop_toTopOf="parent" />

        <ImageView
            android:id="@+id/ivClose"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="@dimen/dp_10"
            android:padding="@dimen/dp_4"
            android:scaleType="center"
            android:src="@drawable/icon_toolbar_close"
            app:layout_constraintBottom_toBottomOf="@+id/view_topbg"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="@+id/view_topbg" />


        <LinearLayout
            android:id="@+id/ll_bottom"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:orientation="vertical"
            app:layout_constraintBottom_toTopOf="@id/btnSave"
            app:layout_constraintTop_toBottomOf="@id/view_topbg">

            <TextView
                android:id="@+id/tvTitle"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="16dp"
                android:layout_marginTop="20dp"
                android:text="标题"
                android:textColor="@color/font_222222"
                android:textSize="14sp" />

            <RelativeLayout
                android:id="@+id/rl_editext"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">

                <EditText
                    android:id="@+id/etContent"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_centerVertical="true"
                    android:layout_marginStart="16dp"
                    android:layout_marginTop="12dp"
                    android:layout_marginEnd="16dp"
                    android:background="@drawable/shape_f5f5f5_radius4"
                    android:hint="请输入内容"
                    android:maxHeight="80dp"
                    android:minHeight="50dp"
                    android:paddingStart="10dp"
                    android:paddingTop="@dimen/dp_4"
                    android:paddingRight="20dp"
                    android:paddingBottom="@dimen/dp_4"
                    android:textColor="@color/font_222222"
                    android:textColorHint="@color/font_999999"
                    android:textCursorDrawable="@drawable/color_cursor"
                    android:textSize="16sp" />


                <ImageView
                    android:id="@+id/iv_clear"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentRight="true"
                    android:layout_centerVertical="true"
                    android:layout_marginEnd="20dp"
                    android:padding="5dp"
                    android:src="@drawable/ic_edit_clear"
                    android:visibility="gone" />
            </RelativeLayout>

        
        </LinearLayout>

        <TextView
            android:id="@+id/btnSave"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="10dp"
            android:layout_marginEnd="16dp"
            android:layout_marginBottom="12dp"
            android:background="@drawable/shape_5477f7_radius8"
            android:gravity="center"
            android:text="保存"
            android:textColor="#ffffffff"
            android:textSize="20sp"
            app:layout_constraintBottom_toBottomOf="parent" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>