aChartEngine，GraphicalView OnClickListener不工作

我是新来的android和我使用aChartEngine创建一个条形图。我想在用户点击图表时捕获x和y值。我已经看过来自aChartEngine的演示并让我的图表创建正常。但是，当我点击graphy时，onClickListner不起作用。我已经在OnResume方法中定义了侦听器，但它不起作用。任何想法将不胜感激。我在这里错过了什么吗？aChartEngine，GraphicalView OnClickListener不工作

，这里是我的onResume方法是从XYChartBuilder

@Override 
protected void onResume() { 
    super.onResume(); 
Toast.makeText(Clickable2.this, "In OnResume", Toast.LENGTH_SHORT).show(); 

    if (mChartView == null) {  

Toast.makeText(Clickable2.this, "mChartView is null", Toast.LENGTH_SHORT).show();  

    LinearLayout layout = (LinearLayout) findViewById(R.id.chart); 
    mChartView = ChartFactory.getBarChartView(this,mDatasetMethod(titles,x,values),renderer,Type.DEFAULT); 
    renderer.setClickEnabled(true); 
    renderer.setSelectableBuffer(100); 

    //OnClickListener 
    mChartView.setOnClickListener(new View.OnClickListener() { 
    // @Override 
     public void onClick(View v) { 
Toast.makeText(Clickable2.this, "ON CLICK", Toast.LENGTH_SHORT).show();    
     SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint(); 
     double[] xy = mChartView.toRealPoint(0); 
     if (seriesSelection == null) { 
      Toast.makeText(Clickable2.this, "No chart element was clicked", Toast.LENGTH_SHORT) 
       .show(); 
     } else { 
      Toast.makeText(
        Clickable2.this, 
       "Chart element in series index " + seriesSelection.getSeriesIndex() 
        + " data point index " + seriesSelection.getPointIndex() + " was clicked" 
        + " closest point value X=" + seriesSelection.getXValue() + ", Y=" + seriesSelection.getValue() 
        + " clicked point value X=" + (float) xy[0] + ", Y=" + (float) xy[1], Toast.LENGTH_SHORT).show(); 
     } 
     } 
    }); 

    //LongClickListener 
    mChartView.setOnLongClickListener(new View.OnLongClickListener() { 
    // @Override 
     public boolean onLongClick(View v) { 
     SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint(); 
    Toast.makeText(Clickable2.this, "ON LONG CLICK", Toast.LENGTH_SHORT).show(); 
     if (seriesSelection == null) { 
      Toast.makeText(Clickable2.this, "No chart element was long pressed", 
       Toast.LENGTH_SHORT); 
      return false; // no chart element was long pressed, so let something 
      // else handle the event 
     } else { 
      Toast.makeText(Clickable2.this, "Chart element in series index " 
       + seriesSelection.getSeriesIndex() + " data point index " 
       + seriesSelection.getPointIndex() + " was long pressed", Toast.LENGTH_SHORT); 
      return true; // the element was long pressed - the event has been 
      // handled 
     } 
     } 
    }); 

    mChartView.addZoomListener(new ZoomListener() { 
     public void zoomApplied(ZoomEvent e) { 
     String type = "out"; 
     if (e.isZoomIn()) { 
      type = "in"; 
     } 
     System.out.println("Zoom " + type + " rate " + e.getZoomRate()); 
     } 

     public void zoomReset() { 
     System.out.println("Reset"); 
     } 
    }, true, true); 

    mChartView.addPanListener(new PanListener() { 
     public void panApplied() { 
     System.out.println("New X range=[" + renderer.getXAxisMin() + ", " + renderer.getXAxisMax() 
      + "], Y range=[" + renderer.getYAxisMax() + ", " + renderer.getYAxisMax() + "]"); 
     } 
    }); 

    layout.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT)); 
    boolean enabled = mDataset.getSeriesCount() > 0; 
    } else { 
    mChartView.repaint(); 
Toast.makeText(Clickable2.this, "mChartView is NOT null", Toast.LENGTH_SHORT).show(); 
    } 
}

来源

2012-03-19 user1243135

你有没有得到这个工作？你可以发布工作代码吗？ – jcaruso 2013-12-18 19:51:24

您可以检查代码，像XYMultipleSeriesRenderer对象的一些定义取？也许你忘了将setClickEnabled方法设置为true？！

或者，也许你应该尝试：

setOnTouchListener

与方法：

public boolean onTouch(View v, MotionEvent event)

这对我的作品。

来源

2012-09-03 15:01:32 Radu

你可以发布工作代码吗？ – jcaruso 2013-12-18 19:52:18

Render.setclickable（true）;为我工作 – 2014-07-31 08:14:30

谢谢！它从来没有想过我需要在渲染器上设置它，因为它甚至不是视图。 – 2014-10-20 14:22:29

将参数setSelectableBuffer方法的值更改为更大的数字。

来源

2014-08-16 07:24:39 Fateme

aChartEngine，GraphicalView OnClickListener不工作

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