Android (Java) Learning Note 175: Outbound calls to broadcast receivers

Source: Internet
Author: User
Tags ip number

First of all, our sample project list is as follows:

1. First we still buy a radio , define a outcallreceiver inherited from the Broadcastreceiver,onreceive () method defines the actions to be performed by the supervisor to hear the broadcast :

public class Outcallreceiver extends broadcastreceiver {

@Override
Public void OnReceive (context context, Intent Intent) {
sharedpreferences sp = context.getsharedpreferences ("config", 0);
//Modify the phone number dialed by the user and precede the number with 17951
String number = Getresultdata ();
System.out.println ("------have outgoing calls out. "+ number");
if (Number.startswith ("0")) {
Setresultdata (sp.getstring ("Ipnumber", "") + number);
                  }
setresultdata (null);
          }

}

2. install the battery and Adjust the channel, configure in the Androidmanifest.xml file:

<receiver android:name= "Com.itheima.ipdailer.OutCallReceiver" >
<intent-filter >
<action android:name= "Android.intent.action.NEW_OUTGOING_CALL"/>
</intent-filter>
</receiver>

Note here to add an external phone dial-in permission :
<uses-permission android:name= "Android.permission. process_outgoing_calls"/>

3. Engineering Code Overview Map:

(1) Activity_main.xml:

<LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:orientation= "vertical"Tools:context=". Mainactivity " >    <EditTextAndroid:id= "@+id/et_ipnumber"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:hint= "Please enter the IP number prefix to be set" />        <ButtonAndroid:onclick= "Save"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:text= "Save"        /></LinearLayout>

(2) Mainactivity.java:

 PackageCom.itheima.ipdailer;Importandroid.app.Activity;Importandroid.content.SharedPreferences;ImportAndroid.content.SharedPreferences.Editor;ImportAndroid.os.Bundle;ImportAndroid.view.View;ImportAndroid.widget.EditText;ImportAndroid.widget.Toast; Public classMainactivityextendsActivity {PrivateEditText Et_ipnumber; PrivateSharedpreferences sp; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); Et_ipnumber=(EditText) Findviewbyid (R.id.et_ipnumber); SP= This. getsharedpreferences ("config", 0); Et_ipnumber.settext (Sp.getstring ("Ipnumber", "" ")); }     Public voidSave (View view) {String Ipnumber=Et_ipnumber.gettext (). toString (). Trim (); Editor Editor=Sp.edit (); Editor.putstring ("Ipnumber", Ipnumber);        Editor.commit (); Toast.maketext ( This, "set success", 0). Show (); }}

(3) Outcallreceiver.java:

 PackageCom.itheima.ipdailer;ImportAndroid.content.BroadcastReceiver;ImportAndroid.content.Context;Importandroid.content.Intent;Importandroid.content.SharedPreferences; //Buy a radio  Public classOutcallreceiverextendsBroadcastreceiver {@Override Public voidOnReceive (Context context, Intent Intent) {sharedpreferences SP= context.getsharedpreferences ("config", 0); //Modify the phone number dialed by the user, and precede the number with 17951String number =Getresultdata (); System.out.println ("------have outgoing calls out. " +Number ); if(Number.startswith ("0") {setresultdata (sp.getstring ("Ipnumber", "") +Number ); } setresultdata (NULL); }}

(4) Androidmanifest.xml:

<?XML version= "1.0" encoding= "Utf-8"?><Manifestxmlns:android= "Http://schemas.android.com/apk/res/android" Package= "Com.itheima.ipdailer"Android:versioncode= "1"Android:versionname= "1.0" >    <USES-SDKandroid:minsdkversion= "8"android:targetsdkversion= "+" />

//Add an external phone dial-in permission <uses-permissionAndroid:name= "Android.permission.PROCESS_OUTGOING_CALLS"/> <ApplicationAndroid:allowbackup= "true"Android:icon= "@drawable/ic_launcher"Android:label= "@string/app_name"Android:theme= "@style/apptheme" > <ActivityAndroid:name= "Com.itheima.ipdailer.MainActivity"Android:label= "@string/app_name" > <Intent-filter> <ActionAndroid:name= "Android.intent.action.MAIN" /> <categoryAndroid:name= "Android.intent.category.LAUNCHER" /> </Intent-filter> </Activity>

//battery pack, channel adjustment <receiverAndroid:name= "Com.itheima.ipdailer.OutCallReceiver"> <Intent-filter> <ActionAndroid:name= "Android.intent.action.NEW_OUTGOING_CALL"/> </Intent-filter> </receiver>
    </ Application > </ Manifest >

Android (Java) Learning Note 175: Outbound calls to broadcast receivers

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.