PullRefreshLayout.java 文件源码

public PullRefreshLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.refresh_PullRefreshLayout);
    final int colorsId = a.getResourceId(R.styleable.refresh_PullRefreshLayout_refreshColors, 0);
    final int colorId = a.getResourceId(R.styleable.refresh_PullRefreshLayout_refreshColor, 0);
    a.recycle();
    mDecelerateInterpolator = new DecelerateInterpolator(DECELERATE_INTERPOLATION_FACTOR);
    mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
    int defaultDuration = getResources().getInteger(android.R.integer.config_mediumAnimTime);
    mDurationToStartPosition = defaultDuration;
    mDurationToCorrectPosition = defaultDuration;
    mSpinnerFinalOffset = mTotalDragDistance = dp2px(DRAG_MAX_DISTANCE);
    mRefreshView = new ImageView(context);
    if (colorsId > 0) {
        mColorSchemeColors = context.getResources().getIntArray(colorsId);
    } else {
        mColorSchemeColors = new int[]{Color.rgb(0xC9, 0x34, 0x37), Color.rgb(0x37, 0x5B, 0xF1), Color.rgb(0xF7, 0xD2, 0x3E), Color.rgb(0x34, 0xA3, 0x50)};
    }

    if (colorId > 0) {
        mColorSchemeColors = new int[]{ContextCompat.getColor(context, colorId)};
    }
    setDefaultRefreshStyle();
    mRefreshView.setVisibility(View.GONE);

    setWillNotDraw(false);
    ViewCompat.setChildrenDrawingOrderEnabled(this, true);
}