在 Axon ZTE 设备中,当我运行接收器时
private String isConnected(Context context) {
String sRet = "";
try {
final Intent mIntent = context.getApplicationContext().registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
int plugged = mIntent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
if ((plugged == BatteryManager.BATTERY_PLUGGED_AC) && ac_connected == false) {
ac_connected = true;
sRet = "AC";
} else if (plugged == BatteryManager.BATTERY_PLUGGED_USB) {
ac_connected = true;
sRet = "USB";
//Toast.makeText(ctx, "connected to usb ", Toast.LENGTH_LONG).show();
} else {
sRet = "NOT CHARGING";
}
} catch (Exception e) {
sRet = "";
}
return sRet;
}
它总是返回“AC”而不是 USB,在其他设备中接收器运行良好。怎么会发生?