I am writing and Android app that would detect and connect to a know embedded device. The issue my side is that it throws exception whenever I am trying to connect:
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
try {
device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
Toast.makeText(getApplicationContext(),"Try Connecting to device : " + device.getName(),
Toast.LENGTH_LONG).show();
byte[] pin = (byte[]) BluetoothDevice.class.getMethod("convertPinToBytes", String.class).invoke(BluetoothDevice.class, "1234");
BluetoothDevice.class.getMethod("setPin", byte[].class).invoke(device, pin);
BlueToothConnect(device);
}catch(Exception e){}
}
}
};
And my BlueToothConnect method is :
public void BlueToothConnect(BluetoothDevice device){
if (deviceName.equals(device.getName()))
{
try
{
//mSocket = device.createInsecureRfcommSocketToServiceRecord(MY_UUID);
Method m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});
mSocket = (BluetoothSocket) m.invoke(device, 1);
mSocket.connect();
GetConnectionDetails();
result = device;
blueTooth_On_off = 1;
}
catch(Exception e){
text.setText(getStackTrace(e));
try{
result = null;
mSocket.close();
blueTooth_On_off = 0;
}
catch(IOException e1){
result = null;
blueTooth_On_off = 0;
}
}
}
}
I am getting below exception error:
java.io.exception:[jsr82] connect: Connection is not created (failed or aborterd)
I cannot do much on embedded device side either.
Below is my manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.edazzelsmarthome"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.edazzelsmarthome.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".broadcast.PairingRequest">
<intent-filter>
<action android:name="android.bluetooth.device.action.PAIRING_REQUEST" />
<action android:name="android.bluetooth.device.action.PAIRING_CANCEL" />
</intent-filter>
</receiver>
</application>
</manifest>
Related
Below code is working fine upto marshmallow but it not working in from 7.0
I create Brocast receiver for to fetch location every 6 sec.
MainActivity.java
private PendingIntent getPendingIntent() {
Intent intent = new Intent(this, LocationUpdatesBroadcastReceiver.class);
intent.setAction(LocationUpdatesBroadcastReceiver.ACTION_PROCESS_UPDATES);
return PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}
public void requestLocationUpdates(View view) {
try {
mFusedLocationClient.requestLocationUpdates(mLocationRequest, getPendingIntent());
} catch (SecurityException e) {
Utils.setRequestingLocationUpdates(this, false);
Log.e("requestLocationUpdates"," "+e.toString());
e.printStackTrace();
}
}
LocationUpdatesBroadcastReceiver.class
This is my BrocadcastReceiver class
public class LocationUpdatesBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = "LUBroadcastReceiver";
static final String ACTION_PROCESS_UPDATES =
"com.google.android.gms.location.sample.locationupdatespendingintent.action" +
".PROCESS_UPDATES";
#Override
public void onReceive(Context context, Intent intent) {
if (intent != null) {
final String action = intent.getAction();
Log.d("showthepackgesss","***** "+action +" \n"+ACTION_PROCESS_UPDATES );
if (ACTION_PROCESS_UPDATES.equals(action)) {
LocationResult result = LocationResult.extractResult(intent);
if (result != null) {
List<Location> locations = result.getLocations();
Utils.setLocationUpdatesResult(context, locations);
Utils.sendNotification(context, Utils.getLocationResultTitle(context, locations));
Log.i(TAG, Utils.getLocationUpdatesResult(context));
}
}
}else {
Toast.makeText(context,"No Intent found checkit",Toast.LENGTH_SHORT).show();
}
}
}
My Manifestfile.xml
Here is my manifestfiles
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.cbdc.locationupdates_background">
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".LocationUpdatesIntentService"
android:exported="false"></service>
<receiver android:name=".LocationUpdatesBroadcastReceiver"
android:exported="true">
<intent-filter>
<action android:name="com.example.cbdc.locationupdates_background.LocationUpdatesBroadcastReceiver.ACTION_PROCESS_UPDATES" />
</intent-filter>
</receiver>
</application>
</manifest>
if any one know please help me.....Thanks in advance!!!!!!
You need to add support for runtime permissions, introduced in API 23.
am not getting a message through my app - help me out i dont know what changes i have to make in this code , tell me should i make it to default(so it will give me a message) or something else do in my code - i do receive a message but not from this app
public class IncomingSms extends BroadcastReceiver {
final SmsManager sms = SmsManager.getDefault();
public void onReceive(Context context, Intent intent) {
// Retrieves a map of extended data from the intent.
final Bundle bundle = intent.getExtras();
try {
if (bundle != null) {
final Object[] pdusObj = (Object[]) bundle.get("pdus");
for (int i = 0; i < pdusObj.length; i++) {
SmsMessage currentMessage = SmsMessage
.createFromPdu((byte[]) pdusObj[i]);
String phoneNumber = currentMessage
.getDisplayOriginatingAddress();
String senderNum = phoneNumber;
String message = currentMessage.getDisplayMessageBody();
Log.i("SmsReceiver", "senderNum: " + senderNum
+ "; message: " + message);
// Show Alert
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, "senderNum: "
+ senderNum + ", message: " + message, duration);
toast.show();
} // end for loop
} // bundle is null
} catch (Exception e) {
Log.e("SmsReceiver", "Exception smsReceiver" + e);
}
}
}
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.smsmanager"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" >
</uses-permission>
<uses-permission android:name="android.permission.READ_SMS" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
I think, you should add this code
<receiver android:name=".yourService" android:exported="true" >
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
in application tag in Manifest
or
or you must register your InComingservice in activity class.
For example
private InComingSMSReceiver inComingSMSReceiver = new InComingSMSReceiver();
#Override
protected void onResume() {
super.onResume();
registerReceiver(inComingSMSReceiver, new IntentFilter("android.provider.Telephony.SMS_RECEIVED"));
}
#Override
protected void onPause() {
super.onPause();
unregisterReceiver(inComingSMSReceiver);
}
It is correct answer , MainAtivity.java class was fine but i did make changes in manifest as u people helped me. and its working perfectly
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.smsmanager"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" >
</uses-permission>
<uses-permission android:name="android.permission.READ_SMS" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<receiver
android:name=".IncomingSms"
android:exported="true" >
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
please take me out this problem ,I am trying to get file from Ftp server .
here is my code which i am continuously getting exception like
java.net.unknownHostException :ftpbrasnet.no-ip.org.
i have tried in browser its working.
FTPClient client = new FTPClient();
FileOutputStream Foutput = null;
try {
client.connect("ftp://ftpbrasnet.no-ip.org/"); // My Exceptionis here
client.login("win7", "123");
// Create an OutputStream for the file
String filename = "files.txt";
Foutput = new FileOutputStream(filename);
// Fetch file from server
client.retrieveFile("/" + filename, Foutput);
}
catch (IOException e)
{
Log.e("ERROR", e.getStackTrace().toString());
}
finally
{
try
{
if (Foutput != null) {
Foutput.close();
}
client.disconnect();
} catch (IOException e) {
Log.e("ERROR", e.getStackTrace().toString());
}
}
}
and here is my manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="Net.estoque"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="9"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application android:label="#string/app_name" >
<activity android:name="Netestoque"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
</manifest>
Have you tried removing the protocol from the URL, like so:
client.connect("ftpbrasnet.no-ip.org/");
I am making and application that records calls. Here is my code to record a call and save the file in the SD card under songs folder. But the problem is that this code was working fine but later it is not working. I cannot find what is the problem. Can you please help me out?
My Broad cast receiver:
public class BrCallReceive extends BroadcastReceiver {
#Override
public void onReceive(Context c, Intent i) {
Bundle extras = i.getExtras();
Intent x = new Intent (c, EavesDropperActivity.class);
x.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (extras != null) {
String state = extras.getString(TelephonyManager.EXTRA_STATE);
Log.w("DEBUG", state);
if (state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
Log.w("DEBUG", "MATCHES");
Toast.makeText(c, "Launching record APP !", Toast.LENGTH_LONG).show();
c.startActivity(x);
}
}
}
}
My Recording activity:
public class EavesDropperActivity extends Activity {
/** Called when the activity is first created. */
MediaRecorder m_recorder = new MediaRecorder();
TelephonyManager t_manager ;
PhoneStateListener p_listener ;
String record_state;
Uri file;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
Toast.makeText(getBaseContext(),
"Executing Activity",
Toast.LENGTH_LONG).show();
t_manager = (TelephonyManager) getSystemService (Context.TELEPHONY_SERVICE);
p_listener = new PhoneStateListener() {
#Override
public void onCallStateChanged (int state, String incomingNumber) {
switch (state) {
case (TelephonyManager.CALL_STATE_IDLE) :
stop_recorder();
//t_manager.listen(p_listener, PhoneStateListener.LISTEN_NONE);
//finish();
break;
case (TelephonyManager.CALL_STATE_OFFHOOK) :
start_recorder();
break;
case (TelephonyManager.CALL_STATE_RINGING) :
break;
}
}
};
t_manager.listen(p_listener, PhoneStateListener.LISTEN_CALL_STATE);
return;
}
public void start_recorder () {
m_recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
m_recorder.setOutputFormat(OutputFormat.THREE_GPP);
m_recorder.setOutputFile(Environment.getExternalStorageDirectory()+"/songs/audionew.3gpp");
m_recorder.setAudioEncoder(AudioEncoder.AMR_NB);
try {
m_recorder.prepare();
m_recorder.start();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void stop_recorder () {
m_recorder.stop();
m_recorder.release();
Uri file = Uri.fromFile(
new File(Environment.getExternalStorageDirectory(),"/songs/audionew.3gpp"));
Toast.makeText(getBaseContext(),
"record stored at " + file.toString(),
Toast.LENGTH_LONG).show();
t_manager.listen(p_listener, PhoneStateListener.LISTEN_NONE);
finish();
}
}
My manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.testapp.EavesDropperActivity"
android:label="#string/app_name" >
</activity>
<receiver android:name="BrCallReceive" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" >
</action>
</intent-filter>
</receiver>
</application>
</manifest>
I think the broadcast receiver is not getting activated wile i am calling my phone.
How do you know your broadcast receiver is not working? Place a Log message inside onReceive() right at the beginning. It might be that your extras == null
But how to make my receiver functional now?
Check out example #5 and just follow the same steps.
Bro i dont think activity will get launched.
Well, it does: You are starting it in your onReceive():
Intent x = new Intent (c, EavesDropperActivity.class);
c.startActivity(x);
However, you are not setting any content in your Activity i.e no UI screen is presented because you have this line commented in onCreate() of EavesDropperActivity Activity:
//setContentView(R.layout.main);
So, you need to think hard on what you are trying to achieve in EavesDropperActivity
HTH.
Put this
<android:permission="android.permission.RECEIVE_BOOT_COMPLETED" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
in mainfest file for broadcast receiver.
Add your package name to your receiver class as,
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.testapp.EavesDropperActivity"
android:label="#string/app_name" >
</activity>
<receiver android:name="com.example.testapp.BrCallReceive" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" >
</action>
</intent-filter>
</receiver>
</application>
long uuidHigh = new BigInteger("11bc4f7154ac9edb", 16).longValue();
long uuidLow = new BigInteger("167bf05f9436bc0a", 16).longValue();
UUID uuid = new UUID(uuidHigh, uuidLow);
BluetoothSocket socket = null;
BluetoothAdapter blueAdapter = null;
blueAdapter = BluetoothAdapter.getDefaultAdapter();
BluetoothDevice device = blueAdapter.getRemoteDevice("00:07:AB:6A:96:7D");
try {
socket = device.createRfcommSocketToServiceRecord(uuid); // CRASH!
} catch (IOException e) { e.printStackTrace(); }
Result:
E/AndroidRuntime(14079): java.lang.IllegalStateException: Could not execute method of the activity
Statements just before the "socket =" statement in the same method execute fine. Getting the device seems to work fine with getName() working on it.
The physical device it runs on has API 8.
The bluetooth dev guide cryptically says:
// MY_UUID is the app's UUID string, also used by the server code
tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
But createRfcommSocketToServiceRecord() cannot take a String, it must take a UUID.
Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="intrax.demo.explore"
android:versionCode="1" android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<application android:icon="#drawable/ic_launcher" android:label="#string/app_name" >
<activity
android:name=".BluetoothAct" android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>