databinding的自定义属性工具类

工具类如下

/**
 * View 的定义属性
 * */
object ViewAdapter {

    /**
     * 用于切换背景选中状态的颜色
     * */
    @BindingAdapter(
        value = ["isViewCheck", "viewCheckResource", "viewUnCheckResource"],
        requireAll = false
    )
    @JvmStatic
    fun viewBackgroundCheckChange(
        view: View,
        isViewCheck: Boolean = true,
        viewCheckResource: Int?,
        viewUnCheckResource: Int?
    ) {
        var viewCheck = viewCheckResource ?: R.mipmap.cb_blue_true
        var viewUnCheck = viewUnCheckResource ?: R.mipmap.cb_blue_false
        if (view is ImageView) {
            view.setImageResource(if (isViewCheck) viewCheck else viewUnCheck)
        } else
            view.setBackgroundResource(if (isViewCheck) viewCheck else viewUnCheck)
    }

    /**
     * 用于切换背景选中状态的颜色
     * */
    @SuppressLint("ResourceAsColor")
    @BindingAdapter(
        value = ["isTextViewCheck", "checkTextColor", "unCheckTextColor"],
        requireAll = false
    )
    @JvmStatic
    fun textColorCheckChange(
        view: TextView,
        isTextViewCheck: Boolean = true,
        @ColorInt checkTextColor: Int? = null,
        @ColorInt unCheckTextColor: Int? = null
    ) {
        var checkText = checkTextColor ?: Color.parseColor("#333333")
        var unCheckText = unCheckTextColor ?: Color.parseColor("#999999")
        view.setTextColor(if (isTextViewCheck) checkText else unCheckText)
    }

    /**
     * 用于切换背景选中状态的颜色
     * */
    @BindingAdapter(
        value = ["textChange"],
        requireAll = false
    )
    @JvmStatic
    fun editTextChange(
        view: TextView,
        textChange: (String) -> Unit
    ) {
        view.addTextChangedListener {
            textChange(it.toString())
        }
    }

//    @BindingAdapter(
//        value = ["pwdtextChange"],
//        requireAll = false
//    )
//    @JvmStatic
//    fun editTextChange(
//        view: TextView,
//        textChange: (String,Int) -> Unit
//    ) {
//        view.addTextChangedListener {
//            textChange(it.toString(),view.id)
//        }
//    }


    /**
     * 只能适用于同一级且在同一父布局
     * 清空TextView 的值
     *
     * @param view
     * @param editTextViewId
     */
    @BindingAdapter(
        value =["editTextViewId"],
        requireAll = false
    )
    fun clearEditTextView(view: View, @IdRes editTextViewId: Int) {
        val parent = view.rootView
        val text: TextView = parent.findViewById(editTextViewId)
        if (text != null) {
            view.setOnClickListener { v: View? ->
                text.text = ""
            }
        }
    }




    @BindingAdapter("editTextId",
        requireAll = false
    )
    @JvmStatic
    fun eyeChange(box: CheckBox, @IdRes editTextId: Int) {
        val parent = box.rootView
        val editText = parent.findViewById(editTextId) as EditText

//        editText.filters = null
//        editText.filters = arrayOf(object : InputFilter {
//            override fun filter(source: CharSequence?, start: Int, end: Int, dest: Spanned?, dstart: Int, dend: Int): CharSequence? {
//                val regex = "^\u4E00-\u9FA5+$"
//                val isChinese = Regex.matches(regex, source?.toString())
//                if (!Character.isLetterOrDigit(source!!.get(start)) || isChinese) {
//                    return ""
//                }
//                return null
//            }
//        })

        box.setOnCheckedChangeListener { buttonView, isChecked ->
            val checked = box.isChecked
            if (checked) {
//            editText.inputType = InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
                editText.transformationMethod = HideReturnsTransformationMethod.getInstance()
            } else {
//            editText.inputType = InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD
                editText.transformationMethod = PasswordTransformationMethod.getInstance()
            }
            editText.setSelection(editText.text.toString().length)
        }
    }


    /**
     * 用于切换背景选中状态的颜色
     * */
    @SuppressLint("SetTextI18n")
    @BindingAdapter(
        value = ["textStr", "startCount", "tagText", "endCount"],
        requireAll = false
    )
    @JvmStatic
    fun hideText(
        view: TextView,
        textStr: String? = "",
        startCount: Int,
        tagText: String? = "***",
        endCount: Int
    ) {
        view.text = textStr ?: ""
        val text = view.text
        text.i("hideText")
        if (text.length > endCount)
            view.text = text.substring(0, startCount) + tagText + text.substring(
                text.length - endCount,
                text.length
            )
    }




    /**
     * 短信验证码输入框
     * */
    @BindingAdapter(
        value = ["beforeInputId", "inputId", "afterInputId", "inputCallBack", "onPaste"],
        requireAll = false
    )
    @JvmStatic
    fun inputCodeView(
        view: EditText,
        @IdRes beforeInputId: Int,
        @IdRes inputId: Int,
        @IdRes afterInputId: Int,
        inputCallBack: ((String?, Boolean) -> Unit)? = { _, _ -> },
        onPaste: ((View, String) -> Unit)? = { _, _ -> false }
    ) {
        val parent = view.parent as View
        var inputView: EditText? = null
        if (inputId != null) {
            inputView = parent.findViewById(inputId)
        }
        var beforeInput: EditText? = null
        if (beforeInputId != null) {
            beforeInput = parent.findViewById(beforeInputId)
        }
        var afterInput: EditText? = null
        if (afterInputId != null) {
            afterInput = parent.findViewById(afterInputId)
        }

        inputView?.addTextChangedListener {

            if (it.toString().length > 1) {
                it.i("PhoneCodeFragment inputView ")
                onPaste?.invoke(inputView, it.toString())
                return@addTextChangedListener
            }
            if (!it.isNullOrBlank() && !it.isNullOrEmpty()) {
                afterInput?.requestFocus()
                if (afterInput == null) {
                    inputCallBack?.invoke(it.toString(), true)
                } else {
                    inputCallBack?.invoke("", false)
                }

            } else {
                beforeInput?.requestFocus()
                inputCallBack?.invoke("", false)
            }
            inputView.setSelection(inputView.text.length)
        }
    }


}