Question

关于以下布局

什么？

第一次尝试创建自定义RelativeLayout并OnDraw覆盖，如下所示

SliceLayout 类：

public class SliceLayout extends LinearLayout {

    public SliceLayout(Context Context, Slice Slice) {
        super(Context);
        mPaint = new Paint();
        mPaint.setStyle(Style.FILL);
        mPaint.setColor(Color.RED);
        mPath = Draw(Slice.A, Slice.B, Slice.C);

    }

    final static String TAG = "Slice";
    Paint mPaint;
    Path mPath;



    private Path Draw(Point A, Point B, Point C) {
        Log.e(TAG, "Draw");
        Path Pencil = new Path();
        Pencil.moveTo(A.x, A.y);
        Pencil.lineTo(B.x, B.y);
        Pencil.lineTo(C.x, C.y);
        return Pencil;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        Log.e(TAG, "Drawing");
        canvas.drawPath(mPath, mPaint);
    }
}

切片类：

public class Slice {
    public enum Location {
        N, S, W, NE, NW, SE, SW, EN, ES
    }

    public Point A;
    public Point B;
    public Point C;

    private void Define(Point A, Point B, Point C) {
        this.A = A;
        this.B = B;
        this.C = C;
    }

    public Slice(Point Display, Location Location) {  //Display = Size of display
        switch (Location) {
        case N:
            Define(new Point(0, 0), new Point(Display.x, 0), new Point(0,
                    Display.y));
        case S:
            Define(new Point(Display.x, 0), new Point(Display.x, Display.y),
                    new Point(0, Display.y));

        default:
            Define(new Point(0, 0), new Point(0, 0), new Point(0, 0));
        }
    }
}

它正在工作，但我不需要采用重型代码低性能方式，因为XML中的继承而无法初始化组件！

第二次尝试尝试创建相同的布局，但XML版

我this，this和that

问题：

我感到宽松，你能帮助我选择正确的方式或建议另一种proven方式！

自定义SliceLayout {Triangle}

0 个答案: