native.js蓝牙扫描回调接口

分类：Native.js

蓝牙

var mScanCallback = plus.android.implements("android.bluetooth.BluetoothAdapter.LeScanCallback", {
"onLeScan": function(device, rssi, scanRecord) {
if(device != null) {
console.log("mScanCallback enter");
}
}
});

function scanARDWifi() {
console.log("scanARDWifi enter");
plus.android.importClass(BAdapter);
if(mScanCallback == null) {
console.log("mScanCallback is null");
}
BAdapter.startLeScan(mScanCallback);
}

调用scanARDWifi函数：
scanARDWifi enter at index.html:83
Uncaught Attempt to read from field 'java.lang.Class io.dcloud.invocation.c.b' on a null object reference;at android.bluetooth.BluetoothAdapter.startLeScan at index.html:1
看提示是空指针错误，搞不明白哪里有空指针的可能，给点提示？

如果不加回调
BAdapter.startLeScan(null);
这样就不报错，可没实际意义。

2016-09-05 12:36 负责人:无分享