116 lines
3.2 KiB
Kotlin
116 lines
3.2 KiB
Kotlin
package com.meloda.fast.extensions
|
|
|
|
import androidx.annotation.UiThread
|
|
import androidx.lifecycle.MutableLiveData
|
|
|
|
object LiveDataExtensions {
|
|
|
|
operator fun <T> MutableLiveData<MutableList<T>>.set(position: Int, v: T) {
|
|
val value = (this.value ?: arrayListOf()).apply { this[position] = v }
|
|
this.value = value
|
|
}
|
|
|
|
operator fun <T> MutableLiveData<MutableList<T>>.get(position: Int): T {
|
|
return (value as MutableList<T>)[position]
|
|
}
|
|
|
|
@JvmOverloads
|
|
fun <T> MutableLiveData<MutableList<T>>.add(v: T, position: Int = -1) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
if (position == -1) this.add(v) else this.add(position, v)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
@JvmOverloads
|
|
fun <T> MutableLiveData<MutableList<T>>.addAll(values: List<T>, position: Int = -1) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
if (position == -1) this.addAll(values)
|
|
else this.addAll(position, values)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
@Suppress("TYPE_INFERENCE_ONLY_INPUT_TYPES_WARNING")
|
|
fun <T> MutableLiveData<MutableList<T>>.removeAll(values: List<T>) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.removeAll(values)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
fun <T> MutableLiveData<MutableList<T>>.removeAt(index: Int) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.removeAt(index)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
fun <T> MutableLiveData<MutableList<T>>.remove(item: T) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.remove(item)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
operator fun <T> MutableLiveData<MutableList<T>>.iterator(): Iterator<T> {
|
|
return (value as MutableList<T>).iterator()
|
|
}
|
|
|
|
fun <T> MutableLiveData<MutableList<T>>.clear() {
|
|
value = arrayListOf()
|
|
}
|
|
|
|
val <T> MutableLiveData<MutableList<T>>.indices get() = (value as MutableList<T>).indices
|
|
|
|
val <T> MutableLiveData<MutableList<T>>.size get() = (value as MutableList<T>).size
|
|
|
|
fun <T> MutableLiveData<MutableList<T>>.isEmpty(): Boolean {
|
|
return (value as MutableList<T>).isEmpty()
|
|
}
|
|
|
|
fun <T> MutableLiveData<MutableList<T>>.isNotEmpty(): Boolean {
|
|
return !isEmpty()
|
|
}
|
|
|
|
fun <T> MutableLiveData<MutableList<T>>.requireValue() = value!!
|
|
|
|
@UiThread
|
|
operator fun <T> MutableLiveData<MutableList<T>>.plusAssign(values: List<T>) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.addAll(values)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
operator fun <T> MutableLiveData<MutableList<T>>.plusAssign(v: T) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.add(v)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
operator fun <T> MutableLiveData<MutableList<T>>.minusAssign(values: List<T>) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.removeAll(values)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
operator fun <T> MutableLiveData<MutableList<T>>.minusAssign(v: T) {
|
|
val value = (this.value ?: arrayListOf()).apply {
|
|
this.remove(v)
|
|
}
|
|
|
|
this.value = value
|
|
}
|
|
|
|
} |