In this android example we are showing ,when any new call event brodcasted ( When new call come ) then how to create receiver to read phone call states.
NOTE : If you are new in android developement then first see this article Introduction To Broadcast Receiver Basics
1. Declare receiver in AndroidManifest
<receiver android:name=".IncomingCall">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
2. Give read phone state permission in AndroidManifest
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
Complete code for AndroidManifest.xml File :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidexample.broadcastreceiver"
android:versionCode="1"
android:versionName="1.0" >
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.androidexample.broadcastreceiver.BroadcastPhoneStates"
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=".IncomingCall">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
</application>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
</manifest>
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I have made broadcast event reciever in this file
1. Created class IncomingCall with extends BroadcastReceiver class
public class IncomingCall extends BroadcastReceiver
2. Create method receiver()
public void onReceive(Context context, Intent intent)
3. Create listener to read phone state
// TELEPHONY MANAGER class object to register one listner
TelephonyManager tmgr = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
//Create Listner
MyPhoneStateListener PhoneListener = new MyPhoneStateListener();
// Register listener for LISTEN_CALL_STATE
tmgr.listen(PhoneListener, PhoneStateListener.LISTEN_CALL_STATE);
4. Create phone state listner class
When new call come the onCallStateChanged method called
private class MyPhoneStateListener extends PhoneStateListener {
public void onCallStateChanged(int state, String incomingNumber) {
// Log.d("MyPhoneListener",state+" incoming no:"+incomingNumber);
// state = 1 means when phone is ringing
if (state == 1) {
String msg = " New Phone Call Event. Incomming Number : "+incomingNumber;
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(pcontext, msg, duration);
toast.show();
}
}
}
Complete code for IncomingCall.java file :
public class IncomingCall extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
try {
// TELEPHONY MANAGER class object to register one listner
TelephonyManager tmgr = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
//Create Listner
MyPhoneStateListener PhoneListener = new MyPhoneStateListener();
// Register listener for LISTEN_CALL_STATE
tmgr.listen(PhoneListener, PhoneStateListener.LISTEN_CALL_STATE);
} catch (Exception e) {
Log.e("Phone Receive Error", " " + e);
}
}
private class MyPhoneStateListener extends PhoneStateListener {
public void onCallStateChanged(int state, String incomingNumber) {
Log.d("MyPhoneListener",state+" incoming no:"+incomingNumber);
if (state == 1) {
String msg = "New Phone Call Event. Incomming Number : "+incomingNumber;
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(pcontext, msg, duration);
toast.show();
}
}
}
}
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