vishvendu PALAWAT issues

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Results 2 issues of


                                            vishvendu PALAWAT

RuntimeException: startPreview failed

Caused by: java.lang.RuntimeException: startPreview failed at android.hardware.Camera.startPreview(Native Method) at com.androidhiddencamera.CameraPreview.startCameraInternal(CameraPreview.java:158)

Bar Chart Data points showing but Bars not displaying

![img_20170307_130925](https://cloud.githubusercontent.com/assets/4905274/23646729/29ef1b48-0338-11e7-876d-f2ee6b05882f.jpg) **x-axis is time and y-axis is price...** This is how I am adding data into BarEntry `JSONArray ChartDataPointArray = data.getJSONArray("ChartDataPoint"); System.out.println("ChartDataPointArray " + ChartDataPointArray.toString()); System.out.println("ChartDataPointArray length " + ChartDataPointArray.length());...