SplitPaneLayout.java 文件源码

private void extractAttributes(@NonNull final Context context, @Nullable final AttributeSet attrs)
{
    if (attrs != null)
    {
        final TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.SplitPaneLayout);

        // misc
        this.orientation = array.getInt(R.styleable.SplitPaneLayout_orientation, 0);
        this.splitterSize = array.getDimensionPixelSize(R.styleable.SplitPaneLayout_splitterSize, context.getResources().getDimensionPixelSize(R.dimen.spl_default_splitter_size));
        this.splitterMovable = array.getBoolean(R.styleable.SplitPaneLayout_splitterMovable, true);

        // position
        TypedValue value = array.peekValue(R.styleable.SplitPaneLayout_splitterPosition);
        if (value != null)
        {
            if (value.type == TypedValue.TYPE_DIMENSION)
            {
                this.splitterPosition = array.getDimensionPixelSize(R.styleable.SplitPaneLayout_splitterPosition, Integer.MIN_VALUE);
                this.splitterPositionPercent = -1;
            }
            else if (value.type == TypedValue.TYPE_FRACTION)
            {
                this.splitterPositionPercent = array.getFraction(R.styleable.SplitPaneLayout_splitterPosition, 100, 100, 50) * 0.01f;
                this.splitterPosition = Integer.MIN_VALUE;
            }
        }
        else
        {
            this.splitterPosition = Integer.MIN_VALUE;
            this.splitterPositionPercent = 0.5f;
        }

        // backgrounds
        value = array.peekValue(R.styleable.SplitPaneLayout_splitterBackground);
        if (value != null)
        {
            if (value.type == TypedValue.TYPE_REFERENCE || value.type == TypedValue.TYPE_STRING)
            {
                this.splitterDrawable = array.getDrawable(R.styleable.SplitPaneLayout_splitterBackground);
            }
            else if (value.type == TypedValue.TYPE_INT_COLOR_ARGB8 || value.type == TypedValue.TYPE_INT_COLOR_ARGB4 || value.type == TypedValue.TYPE_INT_COLOR_RGB8 || value.type == TypedValue.TYPE_INT_COLOR_RGB4)
            {
                this.splitterDrawable = new PaintDrawable(array.getColor(R.styleable.SplitPaneLayout_splitterBackground, 0xFF000000));
            }
        }
        value = array.peekValue(R.styleable.SplitPaneLayout_splitterDraggingBackground);
        if (value != null)
        {
            if (value.type == TypedValue.TYPE_REFERENCE || value.type == TypedValue.TYPE_STRING)
            {
                this.splitterDraggingDrawable = array.getDrawable(R.styleable.SplitPaneLayout_splitterDraggingBackground);
            }
            else if (value.type == TypedValue.TYPE_INT_COLOR_ARGB8 || value.type == TypedValue.TYPE_INT_COLOR_ARGB4 || value.type == TypedValue.TYPE_INT_COLOR_RGB8 || value.type == TypedValue.TYPE_INT_COLOR_RGB4)
            {
                this.splitterDraggingDrawable = new PaintDrawable(array.getColor(R.styleable.SplitPaneLayout_splitterDraggingBackground, SPLITTER_DRAG_COLOR));
            }
        }
        else
        {
            this.splitterDraggingDrawable = new PaintDrawable(SPLITTER_DRAG_COLOR);
        }
        array.recycle();
    }
}