LingjuSwipeUpLoadRefreshLayout.java 文件源码

/**
 * Constructor that is called when inflating SwipeRefreshLayout from XML.
 *
 * @param context
 * @param attrs
 */
public LingjuSwipeUpLoadRefreshLayout(Context context, AttributeSet attrs) {
    super(context, attrs);

    mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();

    mMediumAnimationDuration = getResources().getInteger(
            android.R.integer.config_mediumAnimTime);

    setWillNotDraw(false);
    mDecelerateInterpolator = new DecelerateInterpolator(DECELERATE_INTERPOLATION_FACTOR);

    final TypedArray a = context.obtainStyledAttributes(attrs, LAYOUT_ATTRS);
    setEnabled(a.getBoolean(0, true));
    a.recycle();

    final DisplayMetrics metrics = getResources().getDisplayMetrics();
    mCircleWidth = (int) (CIRCLE_DIAMETER * metrics.density);
    mCircleHeight = (int) (CIRCLE_DIAMETER * metrics.density);

    createProgressView();
    ViewCompat.setChildrenDrawingOrderEnabled(this, true);
    // the absolute offset has to take into account that the circle starts at an offset
    mSpinnerFinalOffset = DEFAULT_CIRCLE_TARGET * metrics.density;
    mTotalDragDistance = mSpinnerFinalOffset;
}