Android 利用广播监听usb连接状态(变化情况)

废话不多说了，直接给大家贴代码了，具体代码如下所示：

package com.lgs.test.testcode.receiver; 
import android.content.broadcastreceiver; 
import android.content.context; 
import android.content.intent; 
import android.content.intentfilter; 
import android.widget.toast; 
/** 
 * created by administrator on 2017/6/26. 
 */ 
public class usbconnect { 
  private final static string action = "android.hardware.usb.action.usb_state"; 
  public void start(context context) { 
    intentfilter filter = new intentfilter(); 
    filter.addaction(action); 
    context.registerreceiver(usbroadcastreceiver, filter); 
  } 
  broadcastreceiver usbroadcastreceiver = new broadcastreceiver() { 
    @override 
    public void onreceive(context context, intent intent) { 
      string action = intent.getaction(); 
      toast.maketext(context, "aciton =" + action, toast.length_short).show(); 
      if (action.equals(action)) { 
        boolean connected = intent.getextras().getboolean("connected"); 
        toast.maketext(context, "aciton =" + connected, toast.length_short).show(); 
        if (connected) { 
        } else { 
        } 
      } 
    } 
  }; 
} 

以上所述是小编给大家介绍的android 利用广播监听usb连接状态，希望对大家有所帮助