Glide源码解析方法调用图

Glide.with(上下文).load(图片资源).into(控件)

Glide.with()

with(Context)

with(Activity activity)

with(FragmentActivity activity)

with(Fragment fragment)

With(Fragment fragment)

RequestManager.load(String url)

false

arg为

创建一个RequestManagerFragment,

并添加到Activity或Fragment上

return

RequestManager

fromString() loadGeneric(String.class)

DrawableTypeRequest

DrawableTypeRequest

DrawableRequestBuilder

DrawableRequestBuilder.into(ImageView) super.into(ImageView) GenericRequestBuilder.into(ImageView)

Glide.buildImageViewTarget

(ImageView,Class)

true

GlideDrawableImageViewTarget

into(tagert)

buildRequest(Tagert)

Request

(GenericRequest)

RequestTracker.runRequest(Request) GenericRequest.begin()

View.setImageDrawable(drawable)

1

2

1

false

1

2

return

GifBitmapWrapperDrawableTranscoder

GifBitmapWrapperDrawableTranscoder

(ImageVideoFetcher，FixedLoadProvider，GifBitmapWrapperDrawableTranscoder,GenericRequest...)

(EngineJob,DecodeJob)

new DecodeJob

(ImageVideoFetcher,

FixedLoadProvider，

GifBitmapWrapperDrawa

bleTranscoder)

3

5

用线程池去运行EngineRunable

transfromEncodeAndTranscode

ImageVideoFetcher.loadData

GifBitmapWrapperResource<GifBitmapWrapper>

InputStream

1

ImageVideoWrapper(InputStream)

FixedLoadProvider.getSourceDecoder

GifBitmapWrapperResourceDecoder

return new

2

GifBitmapWrapperResource<GifBitmapWrapper>

RequestManagerRetriever.get(arg)

return

法中，会初始化其FixLoadProvider对象，最后调用DrawableTypeRequest对象的load

DrawableTypeRequest.buildProvider()

1

3

GifBitmapWrapperDrawableTranscoder

InputStream，并包装成ImageVideoWrapper返回

GifBitmapWrapperDrawableTranscoder

1

false