mirror of
https://github.com/meshtastic/Meshtastic-Android.git
synced 2026-04-20 22:23:37 +00:00
77 lines
2.6 KiB
Kotlin
77 lines
2.6 KiB
Kotlin
/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package androidx.ui.fakeandroidview
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import android.content.Context
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.view.ViewGroup.LayoutParams.MATCH_PARENT
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import androidx.annotation.LayoutRes
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import androidx.compose.Composable
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/**
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* Composes an Android [View] given a layout resource [resId]. The method handles the inflation
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* of the [View] and will call the [postInflationCallback] after this happens. Note that the
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* callback will always be invoked on the main thread.
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*
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* @param resId The id of the layout resource to be inflated.
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* @param postInflationCallback The callback to be invoked after the layout is inflated.
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*/
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@Composable
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// TODO(popam): support modifiers here
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fun AndroidView(@LayoutRes resId: Int, postInflationCallback: (View) -> Unit = { _ -> }) {
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AndroidViewHolder(postInflationCallback = postInflationCallback, resId = resId)
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}
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private class AndroidViewHolder(context: Context) : ViewGroup(context) {
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var view: View? = null
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set(value) {
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if (value != field) {
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field = value
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removeAllViews()
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addView(view)
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}
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}
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var postInflationCallback: (View) -> Unit = {}
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var resId: Int? = null
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set(value) {
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if (value != field) {
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field = value
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val inflater = LayoutInflater.from(context)
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val view = inflater.inflate(resId!!, this, false)
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this.view = view
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postInflationCallback(view)
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}
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}
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override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
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view?.measure(widthMeasureSpec, heightMeasureSpec)
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setMeasuredDimension(view?.measuredWidth ?: 0, view?.measuredHeight ?: 0)
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}
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override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {
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view?.layout(l, t, r, b)
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}
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override fun getLayoutParams(): LayoutParams? {
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return view?.layoutParams ?: LayoutParams(MATCH_PARENT, MATCH_PARENT)
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}
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}
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