Settings -> 开发者选项 -> gpu呈现模式

蓝色: create/update DisplayList
紫色: 同步到render thread
红色: 将DisplayList转为gl命令调用
黄色: cpu等待gpu完成

HardwareRenderer.java

HardwareRenderer.drawProfileData() {
  mProfileData 数据
  for(i=0; i < getFrameCount()*elementCount; i+=elementCount)
    mProfileShapes[] <- bar条rect
    drawGraph() 画bar条
    drawCurrentFrame() if(当前帧) 加深当前帧的bar条
    drawThreadshold() 16ms水平线

Resource Id 32位 = 8(packageId) + 8(typeId) + 16(nameId)
ResourceTable.cpp::makeResId()

@startuml

'comment

/' multiline
comments
'/

title First Page Title
' some diagram

newpage

' some other diagram

' legend 图注 left/center/right
legend center
XX Diagram
endlegend

' note left/left of/right/right of/over Alice
note left: First note

note right
Second note
end note

' == Divider ==

/' space
|||
||45|| == 45px
'/

@enduml

SDV: SimpleDraweeView
PDCBuilder: PipelineDraweeControllerBuilder
ADCBuilder: AbstractDraweeControllerBuilder
ADController: AbstractDraweeController

SDV.setImageURI() {
  controller = PDCBuilder.setUri(uri).setOldController(getController()).build()
  setController(controller)
}
-> (PDCBuilder 父类 ADCBuilder).buildController()
  -> PDCBuilder.obtainController() { 清空现在的listeners }
  -> ADCBuilder.maybeAttachListeners(controller) {
    只剩 ADCBuilder.mBoundControllerListeners, 此成员在 ADCBuilder ctor中赋值为null
    }
-> (SDV 父类 DraweeView).setController()
  -> DraweeHolder.setController()

在 WindowManger系统 SDV.onAttach() 时
(SDV 父类 DraweeView).onAttach()
-> DraweeView.doAttach()
  -> DraweeHolder.onAttach()
    -> DraweeHolder.attachOrDetachController()
      -> DraweeHolder.attachController()
        -> AbstractDraweeController.onAttach()
          -> ADController.submitRequest() {
            若cache到, 直接调用 onNewResultInternal();
            若无cache, mDataSource.subscribe(DataSubscriber), 在 onNewResultImpl()调用 onNewResultInternal() 或 onFailureInternal() }
-回调-> ADController.onNewResultInternal() {
  mSettableDraweeHierarchy.setImage(drawable..)
  isFinished: { getControllerListener().onFinalImageSet() }
  否则: { getControllerListener().onIntermediateImageSet() }

Fresco.initialize()
-> ImagePipelineFactory.initialize(ImagePipelineConfig) { new ImagePipelineFactory() }
  -> ImagePipelineFactory.ctor() { mThreadHandoffProducerQueue = DefaultExecutorSupplier.mLightWeightBackgroundExecutor }

(父类 ADController).submitRequest()
-> PipelineDraweeController.getDataSource()
  -> PDCBuilder.getDataSourceForRequest()
    -> ImagePipeline.fetchDecodedImage()
      -> ImagePipeline.submitFetchRequest() { ClosableProducerToDataSourceAdapter.create() }
        -> (ClosableProducerToDataSourceAdapter 父类 AbstractProducerToDataSourceAdapter).ctor()
          -> BitmapMemoryCacheGetProducer.produceResults()
            -> ThreadHandoffProducer.produceResults()
              -> ThreadHandoffProducerQueue.addToQueueOrExecute() { mExecutor.execute() }
                -executor线程-> StatefulProducerRunnable ThreadHandoffProducer.statefulRunnable.onSuccess()
                  -> (BitmapMemoryCacheKeyMultiplexProducer 父类 MultiplexProducer).produceResults()
                    -> MultiplexProducer.startInputProducerIfHasAttachedConsumers()
                      -> BitmapMemoryCacheProducer.produceResults()
                        -> DecodeProducer.produceResults()
                          -> LocalImageProgressiveDecoder.ctor()
                            -> 父类 ProgressiveDecoder.ctor() { JobRunnable 此job被执行时 doDecode() }


AbstractDataSource.subscribe() {
  mDataSourceStatus在ctor赋初始值 IN_PROGRESS:
    mSubscribers.add(Pair(dataSubscriber, ADController.mUiThreadImmediateExecutor))
  shouldNotify==false: 忽略 }

JobScheduler

1. JSON读取
Skin.getJsonLoader() -> new Json() -> json.setSerializer()
  读json文件size属性, new FreeTypeBitmapFontStub()
  FreeTypeBitmapFontStub extends BitmapFont
  FreeTypeBitmapFontStub.data instanceof FreeTypeBitmapFontData

2. Label初始化
new Label() -> Label.setStyle() {
  FreeTypeFontManager.isFreeTypeFont(style.font)==true {
    data.setSize(style.fontSize)
    new FontInfo(data.getSize())
    font = FreeTypeFontManager.getInstance().refresh(style.font==stub, newInfo)
  }
  cache = new BitmapFontCache(font) // cache里的 font == 第一次refresh出来的

3. 更新文字
Label.setText() -> Widget.invalidateHierarchy()
-> Label.invalidate() { needsLayout=true; sizeInvalid=true }
渲染 -> draw() -> Widget.validate() -> Label.layout()
-> computeSize() -> cache.requireSequence(text) {
  FreeTypeFontManager.isFreeTypeFont(this.font) == true:
    this.font = FreeTypeFontManager.getInstance().refresh(this.font, curFontInfo) }
-> FreeTypeFontManager.refresh(font, newInfo) {
  isStub == false
  newInfo不含在当前子串里:
    getFont(newInfo.size)
-> (FreeTypeFontGenerator)generator.generateFont(sizePixel, sequence, flip==false)
-> FreeTypeFontGenerator.generateData(size, chars, flip, packer==null)
-> FreeTypeFontGenerator.generateData(parameter) {
  parameter.packer == null:
    ownsAtlas = true
    data.regions[i] = new TextureRegion(tex=new Texture()) // new出来的texture
    return data
  }
}

构造函数里设置 SkinLoader
AssetManager.ctor() { setLoader(Skin.class, new SkinLoader(resolver==new InternalFileHandleResolver())) }
-> AssetManager.setLoader(Skin.class, suffix==null, SkinLoader)

用户程序调 load
AssetManager.load(fileName, Skin.class)
-> AssetManager.load(fileName, Skin.class, parameter==null) {
  getLoader(Skin.class, fileName);
  loadQueue.add(new AssetDescriptor(fileName, Skin.class, parameter))
}

用户程序调 finishLoading
AssetManager.finishLoading() { while(!update()) ThreadUtils.yield() }
-> AssetManager.update() { nextTask(); updateTask(); }
AssetManager.nextTask() { assetDesc = loadQueue.removeIndex(0); addTask(assetDesc) or inc ref }
AssetManager.updateTask() { task.update(); addAsset(fileName, type, task.getAsset()) }
-> AssetLoadingTask.update() { handleSyncLoader() or handleAsyncLoader() }
SkinLoader 是 AsynchronousAssetLoader, 这里会调用 handleAsyncLoader()
-> AssetLoadingTask.handleAsyncLoader() {
    // 执行多次,  因为submit到线程池中, 被调 call().
    // SkinLoader.getDependencies() 加入装载 TextureAtlas 的依赖
    exec0:
	dependenciesLoaded == false && depsFuture == null:
	    depsFuture = (AsyncExecutor executor).submit(this)
	exec1:
	dependenciesLoaded == false && depsFuture.isDone():
	    dependenciesLoaded = true
	可能的exec2:
	loadFuture == null && !asyncDone:
	    loadFuture = executor.submit(this)
	    // 会在线程池中执行 AssetLoadingTask.call() -> 即本loader的 loadAsync()
	最后的exec:
	asyncDone:
	    asset = asyncLoader.loadSync(manager, fileName, resolve(loader, assetDesc), params)
}

SkinLoader.loadSync() { new Skin(atlas).load(file) }
-> Skin.load(skinFile) { getJsonLoader().fromJson(Skin.class, skinFile) }
-> Json.fromJson(type==Skin.class) { this.readValue(type, null, new JsonReader().parse(file)) }

JsonReader.parse(file) { JsonReader.parse(file.reader("UTF-8")) }
-> JsonReader.parse(Reader reader) -> JsonReader.parse(data, 0, offset)

FileHandle.reader(charset) { return new InputStreamReader(read(), charset) }
FileHandle.read() { return new FileInputStream(file()) }
FileHandle.file() { return java.io.File }

Skin.getJsonLoader(skinFile) { return 匿名Json新类 }
匿名Json类.readValue(Skin.class, null, jsonData) {
	jsonData.isString() == false:
	    super.readValue(Skin.class, elementType==null, jsonData)
}

Json.readValue(Skin.class, elementType==null, jsonData) {
	jsonData.isObject() == true:
	    typeName == null: className = null
	    serializer = classToSerializer.get(Skin.class) // 在Skin.java匿名类中有SetSerializer
	    serializer.read(this, jsonData, type)
}
-> 匿名Json类.read() { for(valueMap) readnamedObjects(json, ClassReflection.forName(valueMap.name()), valueMap) }

RecyclerView#requestChildFocus()
-> RecyclerView#requestChildRectangleOnScreen()
-> LayoutManager#requestChildRectangleOnScreen()
-> RecyclerView#smoothScrollBy(int, int)

addOnScrollListener/removeOnScrollListener (OnScrollListener)

<- RecyclerView.dispatchOnScrolled()
1. <- RecyclerView.scrollByInternal()
  1.1 <- scrollBy(x, y)
    1.1.1 <- RV.LayoutManager.requestChildRectangleOnScreen() { dx!=0 || dy!=0 }
    1.1.2 <- RV.LayoutManager.performAccessibilityAction() { vScroll != 0 || hScroll != 0 }
  1.2 <- RV.onTouchEvent() ACTION_MOVE 触摸移动
  1.3 <- RV.onGenericMotionEvent() SOURCE_CLASS_POINTER ACTION_SCROLL 鼠标滚轮
2. <- RecyclerView.dispatchLayoutStep3() { dispatchOnScrolled(0,0) } layout引起的 item range changed
3. <- RV.ViewFlinger.run() {
  hresult=LayoutManager.scrollHorizontallyBy(); 线性布局 会调到 LinearLayoutManager.scrollBy()
  vresult=LayoutManager.scrollVeriticallyBy();
  (hresult != 0 || vresult != 0) dispatchOnScrolled() }

-> RV.ViewFlinger.smoothScrollBy()