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94 lines
2.2 KiB
94 lines
2.2 KiB
package com.gyf.csams.uikit
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import androidx.compose.material.SnackbarDuration
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import androidx.lifecycle.LiveData
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import androidx.lifecycle.MutableLiveData
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import androidx.lifecycle.ViewModel
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import com.orhanobut.logger.Logger
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interface FormLength {
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val nameLengthError: String
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}
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abstract class FormName<T>(val formDesc: String) {
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protected val _formValue = MutableLiveData<T>()
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val formValue: LiveData<T> = _formValue
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val formPlaceholder = "请输入$formDesc"
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abstract fun onChange(value: T)
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}
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/**
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* 文本输入框控制
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*
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* @property textLength
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* @constructor
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*
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* @param formDesc
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*/
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open class StringForm(formDesc: String, val textLength: Int) :
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FormName<String>(formDesc = formDesc),
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FormLength {
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constructor(formDesc: String, textLength: Int, value: String) : this(
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formDesc = formDesc,
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textLength = textLength
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) {
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_formValue.value = value
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}
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override val nameLengthError = "${formDesc}不能超过最大长度$textLength"
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override fun onChange(value: String) {
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if (value.length > textLength) {
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_formValue.value = value.slice(IntRange(0, textLength - 1))
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} else {
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_formValue.value = value
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}
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Logger.i("${formDesc}更新值：${_formValue.value}")
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}
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}
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data class SnackBar(
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val message: String?,
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val actionLabel: String? = null,
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val duration: SnackbarDuration = SnackbarDuration.Short,
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val callback: () -> Unit?
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)
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/**
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* snackbar
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*
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*/
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class ScaffoldModel : ViewModel() {
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private val _data = MutableLiveData<SnackBar>()
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val data: LiveData<SnackBar> = _data
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fun update(message: String? = null, actionLabel: String? = null, callback: () -> Unit? = {}) {
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if (message == null) {
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_data.value = null
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} else {
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_data.value =
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SnackBar(message = message, actionLabel = actionLabel, callback = callback)
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}
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}
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}
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abstract class ScrollList<T> : ViewModel() {
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protected val _data = MutableLiveData<MutableList<T>>(mutableListOf())
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val data: LiveData<MutableList<T>> = _data
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abstract val initSize: Int
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//加载列表
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abstract fun load()
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//加载更多数据
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abstract fun loadMore(callback: (message: String) -> Unit)
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}
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