Examples with ChartArcListener org.xclcharts.event.click.ChartArcListener used on opensource projects

Example 1 with ChartArcListener

use of org.xclcharts.event.click.ChartArcListener in project XCL-Charts by xcltapestry.

the class ClickChartsActivity method initActivity.

private void initActivity() {
    // 完全动态创建,无须XML文件.
    FrameLayout content = new FrameLayout(this);
    // 缩放控件放置在FrameLayout的上层，用于放大缩小图表
    FrameLayout.LayoutParams frameParm = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    frameParm.gravity = Gravity.BOTTOM | Gravity.RIGHT;
    // 图表显示范围在占屏幕大小的90%的区域内
    DisplayMetrics dm = getResources().getDisplayMetrics();
    int scrWidth = (int) (dm.widthPixels * 0.9);
    int scrHeight = (int) (dm.heightPixels * 0.9);
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(scrWidth, scrHeight);
    // 居中显示
    layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
    // 图表view放入布局中，也可直接将图表view放入Activity对应的xml文件中
    final RelativeLayout chartLayout = new RelativeLayout(this);
    chartLayout.addView(mCharts, layoutParams);
    // 增加控件
    ((ViewGroup) content).addView(chartLayout);
    setContentView(content);
    mCharts.setOnPlotClickListener(new ChartArcListener() {

        // 可改成pointF,positionRecord,既当前点击点及位置记录
        @Override
        public void onClick(PointF point, ArcPosition positionRecord) {
            if (null == positionRecord)
                return;
            /**
             * 附注，如果数据源是从Activity传给view的，
             * 则可在此通过 positionRecord.getDataID() 得到对应的id来取相关信息。
             * 同理，其它图形也可依此形式来做，
             * 	如onClick的参数ArcPosition依图形类别,
             * 		可替换对应的PointPosition或BarPosition类
             */
            Toast.makeText(ClickChartsActivity.this, "[此处为Activity返回的信息] ID:" + positionRecord.getDataID(), Toast.LENGTH_SHORT).show();
        }
    });
}