zbar 识别图片二维码报空指针异常

[HelloFish-2016]

12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'android.hardware.Camera$Parameters android.hardware.Camera.getParameters()' on a null object reference 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at cn.bingoogolapple.qrcode.core.QRCodeView.transformToViewCoordinates(QRCodeView.java:463) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at cn.bingoogolapple.qrcode.zbar.ZBarView.processData(ZBarView.java:130) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at cn.bingoogolapple.qrcode.zbar.ZBarView.processBitmapData(ZBarView.java:155) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at cn.bingoogolapple.qrcode.core.ProcessDataTask.doInBackground(ProcessDataTask.java:106) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at cn.bingoogolapple.qrcode.core.ProcessDataTask.doInBackground(ProcessDataTask.java:10) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at android.os.AsyncTask$2.call(AsyncTask.java:295) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 12-06 15:30:43.788 26777-26902/com.gfd.zbardemo W/System.err: at java.lang.Thread.run(Thread.java:818)