我正在处理模块,负责处理Glide
图像加载
所有其他类必须使用GlideFeatureModule
来加载图像
GlideFeatureModule
interface IGlideLoad{
fun load(file: Any):GlideLoadImp
fun context(context: Fragment):GlideLoadImp
fun context(context: AppCompatActivity):GlideLoadImp
fun context(context: Context):GlideLoadImp
fun placeHolder(drawable: Drawable):GlideLoadImp
fun placeHolder(drawable: Int):GlideLoadImp
fun apply(requestOptions: BaseRequestOptions<*>):GlideLoadImp
fun into(imageView: ImageView):GlideLoadImp
fun build():GlideLoadImp
}
使用GlideFeatureModule的类
glideLoad
.context(context)
.load(url)
.into(profileImage);
现在我被困在如何使用Glide
提供的回调
.listener(new RequestListener<Drawable>() {
@Override
public boolean onLoadFailed(...) {
}
@Override
public boolean onResourceReady(...) {
}
})
我想用它有点像
glideLoad.listener(new GlideLoadImp.GlideStatus() {
@Override
public void onSuccess() {
}
@Override
public void onFailed() {
}
});
您无需创建自定义回调以从RequestListener
界面获取响应。
那你怎么得到回调呢?您可以简单地将此类接口的对象作为方法参数传递,以便可以处理回调。
看下面的例子:
/**
* Method that loads image explicitly to view passed as parameter provided by string url to be load into.
* It receives callback as method parameter to handle result.
* @param view as {@link ImageView} object
* @param url as {@link String} parameter
* @param listener as {@link RequestListener} object
*/
public void loadImage(@NonNull ImageView view, String url, RequestListener<Drawable> listener) {
Glide.with(view.getContext())
.load(url)
.listener(listener)
.into(view);
}
以及如何使用它
loadImage(imageView, "myUrl", new RequestListener<Drawable>() { //Here we will get callback
@Override
public boolean onLoadFailed(@android.support.annotation.Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
return false;
}
@Override
public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
return false;
}
});
编辑O.P。:
你可以尝试一下,让我们说你现在正在用作调解员的课程,如下所示:
class GlideLoad{
//we store our listener object here to provide callback
var callback : GlideLoadImp.GlideStatus? = null
fun listener(listener: GlideLoadImp.GlideStatus?) {
this.callback = listener
}
}
我们用O.P.的方法从外面设置它,
glideLoad.listener(object: GlideLoadImp.GlideStatus() {
override fun onSuccess() {
}
override fun onFailed() {
}
})
现在在我们的RequestListener
回调期间,我们可以提供值或调用我们的回调监听器,如下所示:
class GlideLoad {
... Some code
// some method having our RequestListener implementation
object: RequestListener<Drawable>() {
override fun Boolean onLoadFailed(...) {
callback?.onFailed(you can pass params here if needed)
}
override fun Boolean onResourceReady(...) {
callback?.onSuccess(you can pass params here if needed)
}
}
... Some other code
}