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July 27, 2022 07:03
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Coil AsyncImage with the ability to return The Loaded BitmapDrawable.
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import android.graphics.drawable.Drawable | |
import androidx.compose.foundation.Image | |
import androidx.compose.runtime.Composable | |
import androidx.compose.runtime.LaunchedEffect | |
import androidx.compose.runtime.Stable | |
import androidx.compose.ui.Modifier | |
import androidx.compose.ui.graphics.painter.Painter | |
import androidx.compose.ui.layout.ContentScale | |
import androidx.compose.ui.platform.LocalContext | |
import coil.compose.AsyncImagePainter | |
import coil.compose.rememberAsyncImagePainter | |
import coil.request.ImageRequest | |
import coil.request.NullRequestDataException | |
import kotlinx.coroutines.launch | |
@Composable | |
fun AsyncImageWithDrawable( | |
model: Any?, | |
contentDescription: String?, | |
modifier: Modifier = Modifier, | |
placeholderResId: Int? = null, | |
errorResId: Int? = null, | |
fallbackResId: Int? = errorResId, | |
contentScale: ContentScale, | |
onDrawableLoad: (Drawable?) -> Unit | |
) { | |
val painter = rememberAsyncImagePainter( | |
ImageRequest.Builder(LocalContext.current).data(data = model) | |
.apply(block = fun ImageRequest.Builder.() { | |
crossfade(true) | |
placeholderResId?.let { placeholder(it) } | |
errorResId?.let { error(it) } | |
fallbackResId?.let { fallback(it) } | |
allowHardware(false) | |
}).build() | |
) | |
val state = painter.state | |
Image( | |
painter = painter, | |
contentDescription = contentDescription, | |
modifier = modifier, | |
contentScale = contentScale | |
) | |
when (state) { | |
is AsyncImagePainter.State.Success -> { | |
LaunchedEffect(key1 = painter) { | |
launch { | |
val drawable: Drawable? = painter.imageLoader.execute(painter.request).drawable | |
onDrawableLoad(drawable) | |
} | |
} | |
} | |
else -> {} | |
} | |
} |
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