NestedScrollView.java 文件源码

public NestedScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    this.mTempRect = new Rect();
    this.mIsLayoutDirty = true;
    this.mIsLaidOut = false;
    this.mChildToScrollTo = null;
    this.mIsBeingDragged = false;
    this.mSmoothScrollingEnabled = true;
    this.mActivePointerId = -1;
    this.mScrollOffset = new int[2];
    this.mScrollConsumed = new int[2];
    initScrollView();
    TypedArray a = context.obtainStyledAttributes(attrs, SCROLLVIEW_STYLEABLE, defStyleAttr, 0);
    setFillViewport(a.getBoolean(0, false));
    a.recycle();
    this.mParentHelper = new NestedScrollingParentHelper(this);
    this.mChildHelper = new NestedScrollingChildHelper(this);
    setNestedScrollingEnabled(true);
    ViewCompat.setAccessibilityDelegate(this, ACCESSIBILITY_DELEGATE);
}