Jay 19ccf91e97 add null check		2017-09-09 12:50:47 +08:00
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java/xyz/mtfos/btdemo	add null check	2017-09-09 12:50:47 +08:00
res	add QrScanner , modify PrinterBle class	2017-09-08 18:09:18 +08:00
AndroidManifest.xml	add QrScanner , modify PrinterBle class	2017-09-08 18:09:18 +08:00