I'm stuck while working with BroadCastReceiver in which it is invoking only when device is powered on or restarted. I am connecting the USB device using OTG cable. Android system showing USB inserted icon every time but my app not receiving any event.
Let me know what wrong I'm doing.
I am having an application which only has a BroadcastReceiver as below.
public class MountReceiver extends BroadcastReceiver {
private static final String TAG = MountReceiver.class.getSimpleName();
#Override
public void onReceive(Context context, Intent intent) {
String actionName = intent.getAction();
Toast.makeText(context.getApplicationContext()
, "on Receive", Toast.LENGTH_LONG).show();
extractAllDataFromIntent(intent, context);
boolean isMounted;
if (actionName.equals("android.intent.action.MEDIA_MOUNTED")) {
isMounted = true;
} else {
// actionName.equals("android.intent.action.MEDIA_UNMOUNTED"
isMounted = false;
}
}
private void extractAllDataFromIntent(Intent intent, Context context) {
Bundle bundle = intent.getExtras();
if (bundle != null) {
Set<String> keys = bundle.keySet();
Iterator<String> it = keys.iterator();
Log.e(TAG, "Dumping Intent start");
StringBuilder msg = new StringBuilder();
msg.append(TAG + " Seprate app");
while (it.hasNext()) {
String key = it.next();
Log.e(TAG, "[" + key + "=" + bundle.get(key) + "]");
msg.append("[" + key + "=" + bundle.get(key) + "]");
}
Log.e(TAG, "Dumping Intent end");
Toast.makeText(context.getApplicationContext()
, msg, Toast.LENGTH_LONG).show();
//Toast.makeText(context, msg, Toast.LENGTH_LONG).show();
}
}
}
I have manifest entry for this receiver as follows.
<receiver
android:name="com.example.manmohan.mountreceiverdemo.MountReceiver"
android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.MEDIA_MOUNTED" />
<action android:name="android.intent.action.MEDIA_UNMOUNTED" />
<action android:name="android.intent.action.MEDIA_REMOVED" />
<action android:name="android.intent.action.MEDIA_EJECT" />
<action android:name="android.intent.action.MEDIA_BAD_REMOVAL" />
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
<action android:name="android.hardware.usb.action.USB_DEVICE_DETACHED" />
<action android:name="android.hardware.usb.action.USB_STATE" />
<data android:scheme="file" />
</intent-filter>
</receiver>
A weird case I see is that receiver is receiving WiFi change events when added WiFi state change callbacks, but still no USB events are getting received.
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
<action android:name="android.net.wifi.STATE_CHANGE" />
</intent-filter>
I believe you want to know the external storage is mounted or not at any given point of time:
Is there a way to tell if the sdcard is mounted vs not installed at all?
You have clubbed all the actions together for one receiver. Try keeping separate receiver for each action, and check whether you can see the difference.
I believe you have added a permission in your manifest:
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
Related
I have to log when the user installs my app, for that I have registered ACTION_PACKAGE_ADDED broadcast in manifest and created a receiver. but the receiver is not triggering after installing the app. I have tried with registering broadcast ACTION_PACKAGE_ADDED instead of PACKAGE_ADDED, and it works. I have read most of the SO questions regarding this and tried, but nothing works for me.I giving my code below
Manifest
<receiver android:name=".AppInstallReceiver">
<intent-filter android:priority="1">
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.PACKAGE_REPLACED" />
<data android:scheme="package" />
</intent-filter>
</receiver>
Recevier
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals("android.intent.action.PACKAGE_ADDED")) {
String packageName = intent.getDataString();
Log.i("Installed:", packageName + "package name of the program");
}
Log.d(TAG, "Action: " + intent.getAction());
Uri data = intent.getData();
Log.d(TAG, "The DATA: " + data);
}
Is there any problem with this code ?
I want to write a BroadcastReceiver to receive the application install action. But it failed, so I test if my receiver is well or not. So custom a intent, it also filed. below is my code. Please help me correct it.
public class MyInstallReceiver extends BroadcastReceiver {
// public MyInstallReceiver() {
// }
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Intent Detected.", Toast.LENGTH_LONG).show();
Log.d("receiver", "Intent Detected");
if (intent.getAction (). equals ("android.intent.action.PACKAGE_ADDED")) {
String packageName = intent.getDataString ();
//System.out.println ("installed:" + packageName + "package name of the program");
Log.d("receiver","installed:" + packageName + "package name of the program");
}
}
}
custom intent
public void installAPK(View v){
startActivity(intent);
Intent intent = new Intent();
intent.setAction("com.tutorialspoint.CUSTOM_INTENT");
sendBroadcast(intent);
Log.d("receiver", "Intent sent");
}
Manifest.xml
<receiver
android:name=".MyInstallReceiver"
android:enabled="true"
android:exported="true" >
<Intent-filter>
<action android:name = "android.intent.action.PACKAGE_ADDED"/>
<action android:name = "android.intent.action.PACKAGE_REMOVED"/>
<action android:name="com.tutorialspoint.CUSTOM_INTENT">
</action>
<Data android:scheme = "package" />
</Intent-filter>
</receiver>
enter code here
I don't know about correct spelling in your manifest, but this code is definitely works very well:
<receiver android:name=".MyInstallReceiver">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<action android:name="android.intent.action.PACKAGE_ADDED" />
<data android:scheme="package"/>
</intent-filter>
</receiver>
Every application install/uninstall will trigger this receiver.
Everythong looks good, expect a typo in your manifest. It should be <intent-filter> and not <Intent-filter>
I have a written a program which intercepts incoming call using BroadcastReceiver. When I start my app, it starts working. Now the problem is when I restart my android phone, this BroadcastReceiver doesn't work. So I am assuming that I need to make a service for this. But I don't know when to start service and where to start BroadcastReceiver.
BroadcastReceiver code -
public class CallInterceptor extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Service started", Toast.LENGTH_LONG).show();
Bundle extras = intent.getExtras();
if (extras != null) {
String state = extras.getString(TelephonyManager.EXTRA_STATE);
Toast.makeText(context, "Phone is " + state, Toast.LENGTH_LONG).show();
if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
String phoneNumber = extras
.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
Toast.makeText(context, "Call from " + phoneNumber, Toast.LENGTH_LONG).show();
//sendSMS(phoneNumber);
//toggle ringer mode
AudioManager am = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
toggleMode(am);
}
}
}
AndroidManifest file -
<receiver android:name="com.nagarro.service.CallInterceptor" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" >
<action android:name="android.intent.action.BOOT_COMPLETED" />
</action>
</intent-filter>
</receiver>
I don't think <action android:name="android.intent.action.BOOT_COMPLETED" /> is working.
Also, is it possible to do this without service? Please suggest approach which will help me to intercept call evertime (even after reboot).
You've improperly closed your first action tag. Your receiver section should look like:
<receiver android:name="com.nagarro.service.CallInterceptor" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
Also, you are not using a Service. You're using a Broadcast Receiver.
See this page for the basics Application Fundamentals.
i try catch a call from standard dialpad using that code:
<action android:name="android.intent.action.CALL" />
<data android:scheme="tel" />
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.CALL_PRIVILEGED" />
</intent-filter>
</activity>
Everything fine, when user dial from standard phone dialpad, my app opened.
But i don't find solution, how i can get a phone number, which user was dialed. That code inside PhonePadActivity activity onCreate block:
Intent intent = getIntent();
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Toast.makeText(this, "Call was made to-->>" + number, 5000).show();
gives me a null finally :(
tried to using brodacast receiver:
in manifest:
<receiver
android:exported="true"
android:name="com.myapps.android.DialBroadcastReceiver" >
<intent-filter >
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
this is class DialBroadcastReceiver:
package com.myapps.android;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class DialBroadcastReceiver extends BroadcastReceiver {
private static final String THIS_FILE = "PhonePadActivity";
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Log.e(THIS_FILE,"In onReceive()");
if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)) {
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Log.e(THIS_FILE,"Number is: "+number);
}
}
}
but logs nod fired, when user press dial
This works for me:
In Manifest:
<intent-filter>
<action android:name="android.intent.action.CALL"/>
<category android:name="android.intent.category.DEFAULT"/>
<action android:name="android.intent.action.CALL_PRIVILEGED"/>
<data android:scheme="tel"/>
</intent-filter>
In Activity:
String inputURI = this.getIntent().getDataString();
if (inputURI != null) {
Uri uri = Uri.parse(Uri.decode(inputURI));
if (uri.getScheme().equals("tel")) {
String calledNumber = uri.toString();
}
}
You are getting the number with incorrect code. Replace:
Intent intent = getIntent();
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Toast.makeText(this, "Call was made to-->>" + number, 5000).show();
With:
Uri data = getIntent().getData();
if (data != null && ("tel".equals(data.getScheme()))) {
String number = PhoneNumberUtils.getNumberFromIntent(getIntent(), this);
if (number != null) {
Toast.makeText(this, "Call was made to-->>" + number, 5000).show();
}
}
Add <intent-filter android:priority="9999"> to the intent-filter declaration in the manifest, to make sure you're first in line
Remove the com.myapps.android-part from the android:name property of the receiver declaration in the manifest (i.e. it should be: android:name=".DialBroadcastReceiver")
Register a BroadcastReceiver like this in Manifest file:
<!-- DIAL Receiver -->
<receiver
android:exported="true"
android:name="receivers.DialBroadcastReceiver" >
<intent-filter >
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>
You need Permission for NEW_OUTGOING_CALL :
Eventually you can Receive the broadcast and retrieve the dialed number like this:
public class DialBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.v("DileBroadCastReceiver","In onReceive()");
if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)) {
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
Log.v("DialBroadcast Receiver","Number is: "+number);
}
}
}
In my i have a receiver to predict incoming calls,Once i have the call i need bring my app to front of screen(Over call accept and reject scree), the code for receiver is shown below,
public class IncomingCallReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Bundle bundle = intent.getExtras();
if(null == bundle)
return;
Log.i("IncomingCallReceiver",bundle.toString());
String state = bundle.getString(TelephonyManager.EXTRA_STATE);
Log.i("IncomingCallReceiver","State: "+ state);
if(state.equalsIgnoreCase(TelephonyManager.EXTRA_STATE_RINGING))
{
String phonenumber = bundle.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
Log.i("IncomingCallReceiver","Incomng Number: " + phonenumber);
String info = "Detect Calls sample application\nIncoming number: " + phonenumber;
Intent intent2open = new Intent(context, com.varma.samples.detectcalls.ui.MainActivity.class);
intent2open.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent2open.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
String name = "KEY";
String value = "String you want to pass";
intent2open.putExtra(name, value);
context.startActivity(intent2open);
Toast.makeText(context, info, Toast.LENGTH_LONG).show();
}
}
}
in my manifest i added following parameters,
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name="com.varma.samples.detectcalls.ui.MainActivity"
android:label="#string/app_name" android:launchMode="singleTop" android:taskAffinity="#android:string/no">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.varma.samples.detectcalls.receivers.OutgoingCallReceiver">
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
</intent-filter>
</receiver>
<receiver android:name="com.varma.samples.detectcalls.receivers.IncomingCallReceiver">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE"/>
</intent-filter>
</receiver>
</application>
<uses-sdk android:minSdkVersion="3" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
But when i launch the activity the receiver is started to listen incoming calls,then i close all instance of app in Settings, when call is coming for first time, my app is bring front over answer & reject screen.
Then i push back button to reject my call. Then when i make a call again the activity was not bring in front of my dialing screen. I don`t know where is the problem.