Created
December 22, 2022 13:52
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A simple Composable / utility which uses Glide to load remote images in Jetpack compose. All goodness and featured of Glide come by default!
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import android.graphics.Bitmap | |
import android.graphics.drawable.Drawable | |
import androidx.compose.foundation.Image | |
import androidx.compose.foundation.layout.Box | |
import androidx.compose.foundation.layout.height | |
import androidx.compose.foundation.layout.width | |
import androidx.compose.runtime.* | |
import androidx.compose.ui.Modifier | |
import androidx.compose.ui.graphics.ColorFilter | |
import androidx.compose.ui.graphics.asImageBitmap | |
import androidx.compose.ui.layout.ContentScale | |
import androidx.compose.ui.platform.LocalContext | |
import androidx.compose.ui.platform.LocalDensity | |
import androidx.compose.ui.unit.Dp | |
import com.bumptech.glide.Glide | |
import com.bumptech.glide.load.Transformation | |
import com.bumptech.glide.request.RequestOptions | |
import com.bumptech.glide.request.target.CustomTarget | |
import com.bumptech.glide.request.transition.Transition | |
@Composable | |
fun RemoteImage( | |
url: String, | |
height: Dp, | |
width: Dp, | |
contentScale: ContentScale = ContentScale.Fit, | |
contentDescription: String = "", | |
modifier: Modifier = Modifier, | |
onLoadSuccess: () -> Unit = {}, | |
onLoadFailed: () -> Unit = {}, | |
onNewRequest: () -> Unit = {}, | |
loadingView: @Composable (() -> Unit)? = null, | |
errorView: @Composable (() -> Unit)? = null, | |
transformation: Transformation<Bitmap>? = null, // todo: Support multiple transformations | |
colorFilter: ColorFilter? = null | |
) { | |
val bitmap: MutableState<Bitmap?> = remember { mutableStateOf(null) } | |
val isLoading = remember { mutableStateOf(true) } | |
val didFail = remember { mutableStateOf(false) } | |
val heightPixel = LocalDensity.current.run { height.toPx() }.toInt() | |
val widthPixel = LocalDensity.current.run { width.toPx() }.toInt() | |
val glide = Glide.with(LocalContext.current.applicationContext) | |
DisposableEffect(url) { | |
bitmap.value = null | |
onNewRequest() | |
val target = object : CustomTarget<Bitmap>() { | |
override fun onResourceReady( | |
resource: Bitmap, | |
transition: Transition<in Bitmap>? | |
) { | |
bitmap.value = resource | |
isLoading.value = false | |
onLoadSuccess() | |
} | |
override fun onLoadFailed(errorDrawable: Drawable?) { | |
super.onLoadFailed(errorDrawable) | |
didFail.value = true | |
isLoading.value = false | |
onLoadFailed() | |
} | |
override fun onLoadCleared(placeholder: Drawable?) { | |
} | |
} | |
val request = glide | |
.asBitmap() | |
.load(url) | |
.apply(RequestOptions().override(widthPixel, heightPixel)); | |
if (transformation != null) { | |
request.transform(transformation) | |
} | |
request.into(target) | |
onDispose { | |
glide.clear(target) | |
} | |
} | |
Box(modifier = modifier.width(width).height(height)) { | |
if (bitmap.value != null && !isLoading.value) { | |
Image( | |
modifier = Modifier.width(width).height(height), | |
bitmap = bitmap.value!!.asImageBitmap(), | |
contentDescription = contentDescription, | |
contentScale = contentScale, | |
colorFilter = colorFilter | |
) | |
} else if (isLoading.value && loadingView != null) { | |
loadingView() | |
} else if(didFail.value && errorView != null) { | |
errorView() | |
} | |
} | |
} |
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