msfjarvis/compose-lobsters
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app: add no posts state

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Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>
This commit is contained in:
Harsh Shandilya 2020-09-27 16:44:39 +05:30
parent 4fdb5a60d5
commit 62c2cb3fb7
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GPG key ID: 366D7BBAD1031E80
3 changed files with 36 additions and 9 deletions
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33
app/src/main/java/dev/msfjarvis/lobsters/MainActivity.kt
View file

@ -4,6 +4,9 @@ import android.os.Bundle
import androidx.activity.viewModels
import androidx.appcompat.app.AppCompatActivity
import androidx.compose.foundation.Text
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.lazy.LazyColumnForIndexed
import androidx.compose.material.Scaffold
import androidx.compose.material.TopAppBar
@ -11,10 +14,13 @@ import androidx.compose.runtime.Composable
import androidx.compose.runtime.Providers
import androidx.compose.runtime.ambientOf
import androidx.compose.runtime.collectAsState
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.setContent
import androidx.compose.ui.res.stringResource
import dagger.hilt.android.AndroidEntryPoint
import dev.msfjarvis.lobsters.api.LobstersApi
import dev.msfjarvis.lobsters.compose.utils.IconResource
import dev.msfjarvis.lobsters.data.LobstersViewModel
import dev.msfjarvis.lobsters.ui.LobstersItem
import dev.msfjarvis.lobsters.ui.LobstersTheme
@ -52,15 +58,26 @@ fun LobstersApp(
Scaffold(
topBar = { TopAppBar({ Text(text = stringResource(R.string.app_name)) }) },
bodyContent = {
LazyColumnForIndexed(state.value) { index, item ->
if (lastIndex == index) {
viewModel.getMorePosts()
if (state.value.isEmpty()) {
Column(
modifier = Modifier.fillMaxSize(),
verticalArrangement = Arrangement.Center,
horizontalAlignment = Alignment.CenterHorizontally,
) {
IconResource(R.drawable.ic_sync_problem_24px)
Text(stringResource(R.string.nothing_to_see_here))
}
} else {
LazyColumnForIndexed(state.value) { index, item ->
if (lastIndex == index) {
viewModel.getMorePosts()
}
LobstersItem(
item,
linkOpenAction = { post -> urlLauncher.launch(post.url) },
commentOpenAction = { post -> urlLauncher.launch(post.commentsUrl) },
)
}
LobstersItem(
item,
linkOpenAction = { post -> urlLauncher.launch(post.url) },
commentOpenAction = { post -> urlLauncher.launch(post.commentsUrl) },
)
}
}
)

9
app/src/main/res/drawable/ic_sync_problem_24px.xml Normal file
View file

@ -0,0 +1,9 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24">
<path
android:fillColor="#FF000000"
android:pathData="M3,12c0,2.21 0.91,4.2 2.36,5.64l-1.51,1.51c-0.31,0.31 -0.09,0.85 0.36,0.85L8.5,20c0.28,0 0.5,-0.22 0.5,-0.5v-4.29c0,-0.45 -0.54,-0.67 -0.85,-0.35l-1.39,1.39C5.68,15.15 5,13.66 5,12c0,-2.39 1.4,-4.46 3.43,-5.42 0.34,-0.16 0.57,-0.47 0.57,-0.84v-0.19c0,-0.68 -0.71,-1.11 -1.32,-0.82C4.92,5.99 3,8.77 3,12zM11,17h2v-2h-2v2zM19.79,4L15.5,4c-0.28,0 -0.5,0.22 -0.5,0.5v4.29c0,0.45 0.54,0.67 0.85,0.35l1.39,-1.39C18.32,8.85 19,10.34 19,12c0,2.39 -1.4,4.46 -3.43,5.42 -0.34,0.16 -0.57,0.47 -0.57,0.84v0.18c0,0.68 0.71,1.11 1.32,0.82C19.08,18.01 21,15.23 21,12c0,-2.21 -0.91,-4.2 -2.36,-5.64l1.51,-1.51c0.31,-0.31 0.09,-0.85 -0.36,-0.85zM12,13c0.55,0 1,-0.45 1,-1L13,8c0,-0.55 -0.45,-1 -1,-1s-1,0.45 -1,1v4c0,0.55 0.45,1 1,1z"/>
</vector>

3
app/src/main/res/values/strings.xml
View file

@ -1,3 +1,4 @@
<resources>
<string name="app_name">lobste.rs</string>
</resources>
<string name="nothing_to_see_here">Nothing to see here…</string>
</resources>