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LazyVerticalGridActivity.kt
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LazyVerticalGridActivity.kt
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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.compose.integration.macrobenchmark.target
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.lazy.grid.GridCells
import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
import androidx.compose.foundation.lazy.grid.items
import androidx.compose.material.Card
import androidx.compose.material.MaterialTheme
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.semantics.contentDescription
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
class LazyVerticalGridActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val itemCount = intent.getIntExtra(EXTRA_ITEM_COUNT, 12000)
val entries = List(itemCount) { Entry("$it") }
setContent {
MaterialTheme {
LazyVerticalGrid(
columns = GridCells.Fixed(4),
modifier = Modifier.fillMaxWidth().semantics { contentDescription = "IamLazy" }
) {
items(entries) {
ListCell(it)
}
}
}
}
launchIdlenessTracking()
}
companion object {
const val EXTRA_ITEM_COUNT = "ITEM_COUNT"
}
}
@Composable
private fun ListCell(entry: Entry) {
Card(
modifier = Modifier
.fillMaxWidth()
.padding(8.dp)
) {
Text(
text = entry.contents,
textAlign = TextAlign.Center,
style = MaterialTheme.typography.h5,
modifier = Modifier.padding(16.dp)
)
}
}