I want to receive an interrupt when the android device starts charging either thr USB or AC
I have registered the receiver through the following code--
registerReceiver(powerMonitor,newIntentFilter("android.intent.action.ACTION_POWER_CONNECTED"));
The code which accepts the broadcast is--
public void onReceive(Context context, Intent intent) {
powerMonitor = new BroadcastReceiver() {
public void onReceive(Context context,Intent intent) {
if (intent.getAction().equals("android.intent.action.ACTION_POWER_CONNECTED"))
{
msg = "power connected";
}
The issue is when I connect the device through a USB cable I fail to get the interrupt and if I try to remove and plug the USB cable,the VM gets disconnected..How do I check it?
Have I gone wrong?
I even tried d following code--
IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(broadcastReceiver, filter);
int plugged = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
if(plugged==BatteryManager.BATTERY_PLUGGED_AC ||plugged==BatteryManager.BATTERY_PLUGGED_USB)
{
msg="power connected"
}
Please help!!
please have a look on this link (The answer given by me)
activate an application when a power button is clicked
this will help you to solve your problem.
Related
In my application I have to get notified whenever the device connects or disconnects from a WIFI network. For this I have to use a BroadcastReceiver but after reading through different articles and questions here on SO I'm a bit confused which Broadcast action I should use for this. In my opinion I have three choices:
SUPPLICANT_CONNECTION_CHANGE_ACTION
NETWORK_STATE_CHANGED_ACTION
CONNECTIVITY_ACTION
To reduce resources I really only want to get notified whenever the device is CONNECTED to a WIFI network (and it has received an IP address) or when the device has DISCONNECTED from one. I do not care about the other states like CONNECTING etc.
So what do you think is the best Broadcast action I should use for this? And do I have to manully filter the events (because I receieve more then CONNECTED and DISCONNECTED) in onReceive?
EDIT: As I pointed out in a comment below I think SUPPLICANT_CONNECTION_CHANGE_ACTION would be the best choice for me but it is never fired or received by my application. Others have the same problem with this broadcast but a real solution for this is never proposed (in fact other broadcasts are used). Any ideas for this?
You can go for WifiManager.NETWORK_STATE_CHANGED_ACTION works.
Register receiver with WifiManager.NETWORK_STATE_CHANGED_ACTION Action, either in Manifest or Fragment or Activity, which ever suited for you.
Override receiver :
#Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if(action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)){
NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
boolean connected = info.isConnected();
if (connected)
//call your method
}
}
Please try
#Override
protected void onResume() {
super.onResume();
IntentFilter filter = new IntentFilter();
filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
filter.addAction("android.net.wifi.STATE_CHANGE");
registerReceiver(networkChangeReceiver, filter);
}
#Override
protected void onDestroy() {
unregisterReceiver(networkChangeReceiver);
super.onDestroy();
}
and
BroadcastReceiver networkChangeReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if (!AppUtils.hasNetworkConnection(context)) {
showSnackBarToast(getNetworkErrorMessage());
}
}
};
I am using this and it is working for me. Hope it will help you out.
I have registered a BroadcastReceiver to receive ACTION_HEADSET_PLUG which works fine for most devices, ie it is called whenever the headset is plugged or unplugged. But on others eg the ZTE T815, the Intent is never sent/received when the headset is plugged/unplugged.
For reference here is the code for the receiver registration:
private final BroadcastReceiver headsetPlugReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Log.d(TAG, "Received intent=" + intent);
if (intent.getAction().equalsIgnoreCase(Intent.ACTION_HEADSET_PLUG)) {
// do stuff
}
}
};
public void onCreate(Bundle savedState) {
super.onCeate(savedState);
// ...
registerReceiver(headsetPlugReceiver, new IntentFilter(Intent.ACTION_HEADSET_PLUG));
}
Further info:
The Intent is dispatched but only after the HEADSET_HOOK command is fired on the headset.
And when the Intent is dispatched
final int microphone = intent.getIntExtra("microphone", 0);
always returns 0 (ie no microphone).
So
Is there some config/code that can force the delivery of this
Intent?
How do I get the Intent to correctly report whether a
microphone exists or not?
It turns out the ZTE T815 has an OMTP TRRS config for its audio socket instead of CTIA/AHJ like every other modern Android device.
See http://en.wikipedia.org/wiki/Phone_connector_%28audio%29
A sad state of affairs, especially when trying to use audio feed inpout across products.
I'm trying to check if there is a bluetooth device paired when running my app.
In the main activity, I find bluetooth devices and pair to them. In the second activity, I must check if there is a device paired or not.
If a device is conected, it starts automatically sending data, but if there is no conexion, then it simply shows a toast.
I need to do this just when the second activity starts. I found this code, but I don't know how to make it to start when the activity is just created.
public void onCreate() {
//...
IntentFilter filter1 = new IntentFilter(BluetoothDevice.ACTION_ACL_CONNECTED);
IntentFilter filter2 = new IntentFilter(BluetoothDevice.ACTION_ACL_DISCONNECTED);
this.registerReceiver(mReceiver, filter1);
this.registerReceiver(mReceiver, filter2);
}
//The BroadcastReceiver that listens for bluetooth broadcasts
private final BroadcastReceiver BTReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
//Do something if connected
}
else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
//Do something if disconnected
}
}
};
Here is a complete description of the problem, with the correct answer to solve it:
Action to know if there is any bluetooth paired device
I am listening to both connecting and disonnecting the power for my galaxy.
I have creatd 2 BroadCastReceivers, one for connect, and one for disconnect.
When I try to implement, I only get the connected data, even when disconnecting the power cable.
The intent is sent, but looks like it's the wrong one.
Here is the activity code:
// Handle Power On
PowerConnectedBCReceiver myPowerConnectedBCReceiver = new PowerConnectedBCReceiver();
IntentFilter intentPowerOnFilter = new IntentFilter();
intentPowerOnFilter.addAction("android.intent.action.ACTION_POWER_CONNECTED");
registerReceiver(myPowerConnectedBCReceiver, intentPowerOnFilter);
BroadcastReceiver PowerConnectedReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
showToast("connected");
}
};
// Handle Power Off
PowerConnectedBCReceiver myPowerDisonnectedBCReceiver = new PowerConnectedBCReceiver();
IntentFilter intentPowerDisconnectedOnFilter = new IntentFilter();
intentPowerDisconnectedOnFilter.addAction("android.intent.action.ACTION_POWER_DISCONNECTED");
registerReceiver(myPowerDisonnectedBCReceiver, intentPowerDisconnectedOnFilter);
BroadcastReceiver PowerDisconnectedReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
showToast("disconnected");
}
};
Registering both BC to do the work
registerReceiver(PowerDisconnectedReceiver, new IntentFilter("com.neglected.POWER_DISCONNECTED"));
registerReceiver(PowerConnectedReceiver, new IntentFilter("com.neglected.POWER_CONNECTED"));
BroadCast connected code:
public class PowerConnectedBCReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context, "Phone was connected to power" , Toast.LENGTH_LONG).show();
Intent tIntent = new Intent("com.neglected.POWER_CONNECTED");
context.sendBroadcast(tIntent);
}
}
Broadcast disconnected code:
public class PowerDisconnectedBCReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context, "Phone was disconnected from power" , Toast.LENGTH_LONG).show();
Intent tIntent = new Intent("com.neglected.POWER_DISCONNECTED");
context.sendBroadcast(tIntent);
}
}
IS the code wrong?
Can I listen to both actions? seperately?
I can't see extra been sent with the CONNNECTED Action, is there?
Not sure what your last two classes (*BCReeivers) are supposed to be doing. Your first block of code looks ok. It will be limited to the lifecycle of the enclosing Activity if that matters.
For the Galaxy S, you may not be able to rely on those Intents. In particular, I have found that the Verizon Fascinate (their version of the Galaxy S) to be very buggy. See here: http://devblog.bu.mp/how-to-ddos-yourself
There was an error in my Broadcast instantiation. I mistakenly used the PowerConnectedBCReceiver instead of PowerDisconnectedBCReceiver
problem solved.
I have a Service that is downloading a file from a server. I warn the user to only download the file over Wireless LAN before the download starts.
My problem is that my download gets stuck if I loose the network connection. Is there a way to listen for changes in network connection or if it is lost entirely?
Listen for CONNECTIVITY_ACTION
This looks like good sample code. Here is a snippet:
BroadcastReceiver networkStateReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Log.w("Network Listener", "Network Type Changed");
}
};
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(networkStateReceiver, filter);