CirclePageIndicator.java 文件源码

public CirclePageIndicator(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    if (isInEditMode()) return;

    //Load defaults from resources
    final Resources res = getResources();
    final int defaultPageColor = res.getColor(R.color.default_circle_indicator_page_color);
    final int defaultFillColor = res.getColor(R.color.default_circle_indicator_fill_color);
    final int defaultOrientation = res.getInteger(R.integer.default_circle_indicator_orientation);
    final int defaultStrokeColor = res.getColor(R.color.default_circle_indicator_stroke_color);
    final float defaultStrokeWidth = res.getDimension(R.dimen.default_circle_indicator_stroke_width);
    final float defaultRadius = res.getDimension(R.dimen.default_circle_indicator_radius);
    final boolean defaultCentered = res.getBoolean(R.bool.default_circle_indicator_centered);
    final boolean defaultSnap = res.getBoolean(R.bool.default_circle_indicator_snap);

    //Retrieve styles attributes
    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CirclePageIndicator, defStyle, 0);

    mCentered = a.getBoolean(R.styleable.CirclePageIndicator_centered, defaultCentered);
    mOrientation = a.getInt(R.styleable.CirclePageIndicator_android_orientation, defaultOrientation);
    mPaintPageFill.setStyle(Style.FILL);
    mPaintPageFill.setColor(a.getColor(R.styleable.CirclePageIndicator_pageColor, defaultPageColor));
    mPaintStroke.setStyle(Style.STROKE);
    mPaintStroke.setColor(a.getColor(R.styleable.CirclePageIndicator_strokeColor, defaultStrokeColor));
    mPaintStroke.setStrokeWidth(a.getDimension(R.styleable.CirclePageIndicator_strokeWidth, defaultStrokeWidth));
    mPaintFill.setStyle(Style.FILL);
    mPaintFill.setColor(a.getColor(R.styleable.CirclePageIndicator_fillColor, defaultFillColor));
    mRadius = a.getDimension(R.styleable.CirclePageIndicator_radius, defaultRadius);
    mSnap = a.getBoolean(R.styleable.CirclePageIndicator_snap, defaultSnap);

    Drawable background = a.getDrawable(R.styleable.CirclePageIndicator_android_background);
    if (background != null) {
      setBackgroundDrawable(background);
    }

    a.recycle();

    final ViewConfiguration configuration = ViewConfiguration.get(context);
    mTouchSlop = ViewConfigurationCompat.getScaledPagingTouchSlop(configuration);
}