Half Pie Chart no full view

[hoanglt10]

I'm using half pie chart with width = 1/2 screen size and height = 200, but my chart no full view. I fix my problem in Android by code below.

private void moveOffScreen(final RelativeLayout lnlWrapPieChart, final PieChart mPieChart) {
        ViewTreeObserver vto = lnlWrapPieChart.getViewTreeObserver();
        vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                    lnlWrapPieChart.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                } else {
                    lnlWrapPieChart.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                }
                int height = lnlWrapPieChart.getMeasuredHeight();
                int offset = (int)(height * 1); /* percent to move */

                RelativeLayout.LayoutParams rlParams =
                        (RelativeLayout.LayoutParams)mPieChart.getLayoutParams();

                rlParams.setMargins(0, 0, 0, -offset);
                mPieChart.setLayoutParams(rlParams);
            }
        });

    }

Please help for me this problem. I'm using swift 3. Thank you.

[liuxuan30]

Have no idea what are you asking using half pie chart with width = 1/2 screen size and height = 200, but my chart no full view.

Please refer ChartsDemo how to use it.