Loading an image through data binding is easy. I am using Glide in my project. I have to set placeholder image which will change as per some selection by user. Can we use some expression which accepts imageurl and placeHolder image reference.
<androidx.appcompat.widget.AppCompatImageView
android:id="@+id/vehicle_1_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/margin_twenty"
app:layout_constraintEnd_toEndOf="@id/centerGuideline"
app:layout_constraintStart_toStartOf="@id/centerGuideline"
app:layout_constraintTop_toBottomOf="@id/txt_enter_vehicle_name"
app:loadImage="@{viewModel.imgUrl}" />
@BindingAdapter({"loadImage"})
public static void loadUrlImage(ImageView view, String url, int placeHolderImage){
ImageLoaderUtil.getInstance().loadImageWithCache(view, url, placeHolderImage);
}
public void loadImageWithCache(ImageView imageView, String url, int placeholderImage) {
Glide.with(imageView.getContext())
.load(url)
.apply(getDefaultGlideOptions())
.diskCacheStrategy(DiskCacheStrategy.AUTOMATIC)
.placeholder(placeholderImage)
.into(imageView);
}
Found this nice article: https://ayusch.com/databinding-with-glide-android/
We can also accept multiple arguments in our bindingadapter. For example, one may need to load an error image, or a placeholder while our image loads.
So I think listeners is the answer. Posting also the code in case the link is dead.
companion object {
@JvmStatic
@BindingAdapter(value = ["profileImage", "error"], requireAll = false)
fun loadImage(view: ImageView, profileImage: String, error: Int) {
Glide.with(view.context)
.load(profileImage)
.listener(object : RequestListener<Drawable> {
override fun onLoadFailed(
e: GlideException?,
model: Any?,
target: Target<Drawable>?,
isFirstResource: Boolean
): Boolean {
view.setImageResource(error)
return true
}
override fun onResourceReady(
resource: Drawable?,
model: Any?,
target: Target<Drawable>?,
dataSource: DataSource?,
isFirstResource: Boolean
): Boolean {
view.setImageDrawable(resource)
return true
}
})
.into(view)
}
}
and in your layout:
app:error="@{user.errorImage}"
You can add multiple parameter in BindingAdapter
just like this.
@BindingAdapter("url","placeHolderImage")
public static void loadUrlImage(ImageView view, String url, int placeHolderImage)
{
ImageLoaderUtil.getInstance().loadImageWithCache(view, url, placeHolderImage);
}
And you have to add field in Imageview
xml just like this.
<androidx.appcompat.widget.AppCompatImageView
android:id="@+id/vehicle_1_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/margin_twenty"
app:layout_constraintEnd_toEndOf="@id/centerGuideline"
app:layout_constraintStart_toStartOf="@id/centerGuideline"
app:layout_constraintTop_toBottomOf="@id/txt_enter_vehicle_name"
app:url="@{viewModel.imgUrl}"
app:placeHolderImage="@{viewModel.}"
/>
You have pass two thing xml Url and Placeholder.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.