如何修复在android中接收广播Intent的错误

时间:2015-04-01 05:34:52

标签: android android-intent

我正在为usb主机通信编写一个android应用程序。我按下按钮时从android发送样本数据。当我点击按钮时,它显示一个名为错误接收广播意图的错误,请告诉我如何解决这个问题。 这是我的USB驱动程序活动:

/*
 * UsbController.java
 * This file is part of UsbController
 *
 * Copyright (C) 2012 - Manuel Di Cerbo
 *
 * UsbController is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * UsbController is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with UsbController. If not, see <http://www.gnu.org/licenses/>.
 */
package com.example.democomm;

import java.util.HashMap;
import java.util.Iterator;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbConstants;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbEndpoint;
import android.hardware.usb.UsbInterface;
import android.hardware.usb.UsbManager;
import android.util.Log;
public class UsbDriver
{

    private final Context mApplicationContext;
    private final UsbManager mUsbManager;
    @SuppressWarnings("unused")
    private final UsbConnectionHandler mConnectionHandler;
    private final int VID;
    private final int PID;
    protected static final String ACTION_USB_PERMISSION = "ch.serverbox.android.USB";
    public static int Device_Exception;
    public static UsbDevice Device_Details;
    public static UsbEndpoint Data_In_End_Point = null;
    public static UsbEndpoint Data_Out_End_Point = null;
    public static UsbDeviceConnection USB_Device_Connection;

    public UsbDriver(Activity parentActivity,UsbConnectionHandler connectionHandler, int vid, int pid) 
    {
        mApplicationContext = parentActivity.getApplicationContext();
        mConnectionHandler = connectionHandler;
        mUsbManager = (UsbManager) mApplicationContext.getSystemService(Context.USB_SERVICE);
        VID = 6790;
        PID =29987;
        Device_Exception = 0;
    //  init();
        Check_Devices();
    }

    private void Check_Devices() 
    {
        @SuppressWarnings("unused")
        int j=0;
        HashMap<String, UsbDevice> devlist = mUsbManager.getDeviceList();
        Iterator<UsbDevice> deviter = devlist.values().iterator();
        Device_Details = null;
        if (devlist.size() != 0) 
        {

            while (deviter.hasNext()) 
            {
                Device_Details = deviter.next();

                if (Device_Details.getVendorId() == VID && Device_Details.getProductId() == PID)
                {
                    if (!mUsbManager.hasPermission(Device_Details))
                    {
                        onPermissionDenied(Device_Details);
                    }
                    else 
                    {
                        UsbDeviceConnection conn = mUsbManager.openDevice(Device_Details);
                        if (!conn.claimInterface(Device_Details.getInterface(1), true))
                        {
                            return;
                        }

                        conn.controlTransfer(0x21, 34, 0, 0, null, 0, 0);
                        conn.controlTransfer(0x21, 32, 0, 0,new byte[] { (byte) 0x80, 0x25 , 0x00, 0x00,0x00, 0x00, 0x08 }, 7, 0);
                        USB_Device_Connection=conn; 
                        Data_In_End_Point = null;
                        Data_Out_End_Point = null;

                        UsbInterface usbIf = Device_Details.getInterface(1);
                        for (int i = 0; i < usbIf.getEndpointCount(); i++) 
                        {
                            if (usbIf.getEndpoint(i).getType() == UsbConstants.USB_ENDPOINT_XFER_BULK) 
                            {
                                if (usbIf.getEndpoint(i).getDirection() == UsbConstants.USB_DIR_IN)

                                    Data_In_End_Point = usbIf.getEndpoint(i);
                                else
                                    Data_Out_End_Point = usbIf.getEndpoint(i);
                            }
                        }
                        if (Data_In_End_Point == null || Data_Out_End_Point == null)

                            Device_Exception = 2;
                    }
                    break;
                }j++;
            }
            if (Device_Details == null)
            {
                Device_Exception = 3;
                return;
            }
        }
        else 
        {
            Device_Exception = 1;
            return;
        }

    }
    public void onPermissionDenied(UsbDevice d) 
    {
        UsbManager usbman = (UsbManager) mApplicationContext.getSystemService(Context.USB_SERVICE);

        PendingIntent pi = PendingIntent.getBroadcast(mApplicationContext, 0, new Intent(ACTION_USB_PERMISSION), 0);

        mApplicationContext.registerReceiver(mPermissionReceiver,new IntentFilter(ACTION_USB_PERMISSION));

        usbman.requestPermission(d, pi);
    }


        private class PermissionReceiver extends BroadcastReceiver 
        {
            private final IPermissionListener mPermissionListener;

            public PermissionReceiver(IPermissionListener permissionListener) 
            {
                mPermissionListener = permissionListener;
            }

        @Override
        public void onReceive(Context context, Intent intent) 
        {
            mApplicationContext.unregisterReceiver(this);

            if (intent.getAction().equals(ACTION_USB_PERMISSION)) 
            {
                if (!intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) 
                {
                    mPermissionListener.onPermissionDenied((UsbDevice) intent.getParcelableExtra(UsbManager.EXTRA_DEVICE));
                } 
                else 
                {
                    l("Permission granted");
                    UsbDevice dev = (UsbDevice) intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
                    if (dev != null)
                    {
                        if (dev.getVendorId() == VID && dev.getProductId() == PID) 
                        {
                            Check_Devices() ;
                        }
                    }
                    else
                    {
                        e("device not present!");
                    }
                }
            }
        }

    }

    // MAIN LOOP

    // END MAIN LOOP
    private BroadcastReceiver mPermissionReceiver = new PermissionReceiver(new IPermissionListener() 
    {
                @Override
                public void onPermissionDenied(UsbDevice d) 
                {
                    l("Permission denied on " + d.getDeviceId());
                }
            });

    private static interface IPermissionListener 
    {
        void onPermissionDenied(UsbDevice d);
    }

    public final static String TAG = "USBController";

    private void l(Object msg) 
    {
        Log.d(TAG, ">==<" + msg.toString() + " >==<");
    }

    private void e(Object msg) 
    {
        Log.e(TAG, ">==< " + msg.toString() + " >==<");
    }
}

这是我的usb处理程序:

/*
 * IUsbConnectionHandler.java
 * This file is part of UsbController
 *
 * Copyright (C) 2012 - Manuel Di Cerbo
 *
 * UsbController is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * UsbController is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with UsbController. If not, see <http://www.gnu.org/licenses/>.
 */
package com.example.democomm;

/**
 * (c) Neuxs-Computing GmbH Switzerland
 * @author Manuel Di Cerbo, 02.02.2012
 *
 */
public interface UsbConnectionHandler {

    void onUsbStopped();

    void onErrorLooperRunningAlready();

    void onDeviceNotFound();
}

这是我的主要活动:

package com.example.democomm;

import java.nio.ByteBuffer;
import java.util.HashMap;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Typeface;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbEndpoint;
import android.hardware.usb.UsbInterface;
import android.hardware.usb.UsbManager;
import android.hardware.usb.UsbRequest;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity
{

    public static final int targetVendorID = 6790;      
    public static final int targetProductID = 29987;
    public  UsbManager manager;
    public  UsbDeviceConnection usbDeviceConnection;
    public  UsbInterface usbInterfaceFound = null;
    public  UsbEndpoint endpointOut = null;
    public  UsbEndpoint endpointIn = null;
    public  UsbDevice usbdevice,device_details;
    public  UsbEndpoint listusbendpoint;

    public static final String PREFS_NAME = "LoginPrefs";
    HashMap<String, UsbDevice> devicelist= null;
    int selectedendpoint; 
    static int Coil_No;
    private static final int VID = 6790;
    private static final int PID = 29987;
    @SuppressWarnings("unused")
    private static UsbDriver Usb_Driver_class;
    ActionBar actionbar;
    UsbConnectionHandler connectionHandler;
    public static UsbDriver USB_Driver_Child;
    public static boolean Communication_Failed,Frame_Ok,Total_Frame_Decoded;
    static byte[] Communication_Byte;
    public SharedPreferences loginpreferences;
    public SharedPreferences.Editor loginpreferenceseditor;
    public boolean savelogin;
    public String Password;

    Button sample_button;




    public EditText username,password;
    CheckBox remember_me;
    Typeface custom_font;
    String i = "";
    Intent i2;
    CheckBox show_password;
    String ProcID;
    String User_Name_string,password_string;
    TextView title,username_txt,password_txt,company_name;
    ByteBuffer buffer;
    Button signin;
    EditText dialog_username,dialog_password,dialog_confirm;

    static byte[] sample;
    static boolean Communication_Ok;
    public static float []Wave_Form_Data=new float[1500];
    public static float []Wave_Form_Data_1=new float[1500];
    public static float Respsonse_Time,Drive_Voltage;
    static int Sequence_No,Response_Time;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        signin = (Button)findViewById(R.id.button1);

        signin.setOnClickListener(new View.OnClickListener() 
        {

            @SuppressWarnings("static-access")
            @Override
            public void onClick(View v) 
            {
                    Communication_Byte=new byte[1];


                        if(Check_Devices_Available()==true)
                        {   
                            int Packet_Size = USB_Driver_Child.Data_In_End_Point.getMaxPacketSize();
                            Toast.makeText(MainActivity.this,""+Packet_Size, Toast.LENGTH_LONG).show();
                            Receive.start();
                            Communication_Ok=false;
                            for(int i=0;(i<5 && Communication_Ok!=true);i++)    
                            Send_Communication_Check_Command();

                            if(Communication_Ok)
                                Toast.makeText(MainActivity.this, "Communication Successfully Established", 1000).show();
                            else
                                Toast.makeText(MainActivity.this, "Communication Failure", 10000).show();
                        }
                    }
                });
            }





    public boolean  Check_Devices_Available() 
    {
        Usb_Driver_class = new UsbDriver(this, connectionHandler, VID, PID);

        if(USB_Driver_Child.Device_Exception==0)
        {

            if(USB_Driver_Child.USB_Device_Connection==null || USB_Driver_Child.Data_Out_End_Point==null)
            return false;   

            Toast.makeText(MainActivity.this,"Device Found", 1000).show();  
            return true;
        }
        else if(USB_Driver_Child.Device_Exception==1)
        {
            Toast.makeText(MainActivity.this,"No Devices Attached ", Toast.LENGTH_LONG).show(); 
            return false;
        }
        else if(USB_Driver_Child.Device_Exception==2)
        {
            Toast.makeText(MainActivity.this,"Device Found,But No End Points", Toast.LENGTH_LONG).show();   
            return false;
        }
        else if(USB_Driver_Child.Device_Exception==3)
        {
            Toast.makeText(MainActivity.this,"Unable to Open Device", Toast.LENGTH_LONG).show();    
            return false;
        }
        return false;   //un known exception
    }

Thread Receive  = new Thread(new Runnable()
    {

    @SuppressWarnings("unused")
    @Override
    public void run() 
    {
        Sequence_No=0;
        buffer = ByteBuffer.allocate(64);
        sample = new byte[64];
        int Frame_Size;
        UsbRequest request = new UsbRequest();
        int i,j;
        byte [] datarx=new byte[1]; 
        char q;
        while (true) 
        {
        request.initialize(UsbDriver.USB_Device_Connection, UsbDriver.Data_In_End_Point);
        request.queue(buffer, 64);
        if (UsbDriver.USB_Device_Connection.requestWait() == request) 
        {
                sample=buffer.array(); 
                for(i=0;i<64;i++)
                {
                        if(sample[i]=='&')
                        {
                            Communication_Ok=true;
                            break;
                        }
                        else if(sample[i]==0x03)
                        {
                            if(sample[0]==0x02)
                            Frame_Ok=true;  
                            break;
                        }

                }
                if(Frame_Ok==true)
                {
                    Frame_Ok=false;
                    if(sample[1]==1)
                    Coil_No=1;
                    else
                    Coil_No=2;
                    Response_Time= (int)(((sample[2]&0x00FF)<<8) + (sample[3]&0x00FF));

                    Total_Frame_Decoded=true;
                    sample = null;
                }   
        }
      }
    }
  });


private static void Send_Communication_Check_Command() 
{
    long i,j;

    Communication_Byte[0]='&';
    UsbDriver.USB_Device_Connection.bulkTransfer(UsbDriver.Data_Out_End_Point,Communication_Byte, 1, 0);
    for(i=0;(i<1000 && Communication_Ok!=true) ;i++)    
    for(j=0;(j<1000 && Communication_Ok!=true);j++);
}
//Test_Name=1; For Drive Response Test
//Test_Name=2; For Drive Life Test
//Test_Name=3; To Stop test 

/*public static void Send_Command_For_Drive_Response_Test(int Test_Name)
{
    int i;
    byte []Command_To_Transfer= new byte[5];
    Communication_Ok=false;
    for(i=0;i<5;i++)
    {   
        Send_Communication_Check_Command();
        if(Communication_Ok==true)
        break;  
    }
    if(Communication_Ok==true)
    {
        Command_To_Transfer[0]='*';
        if(Test_Name==1)
        {
            Command_To_Transfer[1]=Command_To_Transfer[2]=(byte) 0xA1;
        }
        else if(Test_Name==2)
        {
            Command_To_Transfer[1]=Command_To_Transfer[2]=(byte) 0xA2;
        }
        else if(Test_Name==3)
        {
            Command_To_Transfer[1]=Command_To_Transfer[2]=(byte) 0xA3;
        }
        Command_To_Transfer[3]=0; //For Future Reference 
        Command_To_Transfer[4]='#';
        UsbDriver.USB_Device_Connection.bulkTransfer(UsbDriver.Data_Out_End_Point,Command_To_Transfer, 5, 0);
        Communication_Failed=true;
    }
    else
    {
        Communication_Failed=false;
    }
  }*/

 }

这是我的logcat:

    FATAL EXCEPTION: main
   java.lang.RuntimeException: Error receiving broadcast Intent { act=ch.serverbox.android.USB flg=0x10 (has extras) } in com.example.democomm.UsbDriver$PermissionReceiver@41ce8ea8
    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:773)
    at android.os.Handler.handleCallback(Handler.java:730)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:5103)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:525)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)
   Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
    at android.hardware.usb.UsbDevice.getInterface(UsbDevice.java:155)
    at com.example.democomm.UsbDriver.Check_Devices(UsbDriver.java:88)
    at com.example.democomm.UsbDriver.access$4(UsbDriver.java:65)
    at com.example.democomm.UsbDriver$PermissionReceiver.onReceive(UsbDriver.java:171)
    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:763)
    ... 9 more

2 个答案:

答案 0 :(得分:3)

从未使用过Android中的usb通信,但错误已写在日志中:

   Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
    at android.hardware.usb.UsbDevice.getInterface(UsbDevice.java:155)
    at com.example.democomm.UsbDriver.Check_Devices(UsbDriver.java:88)

第88行看起来像这样:

Device_Details.getInterface(1);

您希望在此处获取第一个界面,可以通过Device_Details.getInterface(0)获取,而不是Device_Details.getInterface(1)

答案 1 :(得分:1)

在使用Device的Activity中的AndroidManifest.xml中写下:

<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
</intent-filter>
<meta-data
android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
android:resource="@xml/device_filter" />

您还必须在xml资源中创建一个过滤器文件,例如res / xml / device_filter:

 <?xml version="1.0" encoding="utf-8"?>
    <resources>
    <usb-device vendor-id="26214" product-id="26214" />
    </resources>

要获得更多帮助,请阅读此thread,它可能会对您有所帮助。