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POAndroid AChartEngine Chart Bitmap NullPointerException
 

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    <p>I know this question was asked earlier once but I see no answer to it from back then. Hence if you someone can guide me in this regard, I would grateful.</p> <p><a href="https://stackoverflow.com/questions/7188556/android-need-help-with-diagram">Android need help with diagram</a></p> <p>I have an error in the below part:</p> <pre><code> double x = 0; double y = 0; for (int i=0;i&lt;10;i++) { x=x+10; y=y+5; mCurrentSeries.add(x, y); } Log.i("Series Count",""+mCurrentSeries.getItemCount()); for (int xy=0;xy&lt;10;xy++) { Log.i("Series -- Values","["+mCurrentSeries.getX(xy)+","+mCurrentSeries.getY(xy)+"]"); } if (mChartView != null) { mChartView.repaint(); } Bitmap bitmap = mChartView.toBitmap(); try { File file = new File(Environment.getExternalStorageDirectory(), "test" + index++ + ".png"); OutputStream output = new FileOutputStream(file); bitmap.compress(CompressFormat.PNG, 100, output); output.flush(); output.close(); } catch (Exception e) { Toast.makeText(LineChartTestActivity.this, "Graph Exception", Toast.LENGTH_LONG).show();//Added Toast to see exception on device Log.e("ERROR", "BITMAP EXCEPTION"); e.printStackTrace(); } </code></pre> <p>To be specific the below line gives me a java.lang.NullPointerException</p> <pre><code>bitmap.compress(CompressFormat.PNG, 100, output); </code></pre> <p>Like Handy mentioned in his question, I'm also able to make it work using the editText but for some odd reason it will not work when I give explicit values from the code!</p> <p>Please advise.</p>
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