Android instance-make a phone call

(1) The project structure is as follows:

(2) Mainactivity.java

Package Com.example.phonecall;import Android.app.activity;import Android.content.intent;import Android.net.Uri; Import Android.os.bundle;import android.view.menu;import Android.view.view;import Android.widget.button;import Android.widget.edittext;public class Mainactivity extends Activity {private Button button;private EditText edittext;@ overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview ( R.layout.activity_main); button = (button) This.findviewbyid (r.id.button1); editText = (EditText) This.findviewbyid ( R.ID.EDITTEXT1); Button.setonclicklistener (new Buttonclicklistener ());} Private Final class Buttonclicklistener implements View.onclicklistener {@Overridepublic void OnClick (View v) {String num ber = Edittext.gettext (). toString (); Intent Intent = new Intent ();/* * dial to add dialing permissions in the manifest file */intent.setaction (" Android.intent.action.CALL "), Intent.addcategory (" Android.intent.category.DEFAULT "); Intent.setdata (Uri.parse (" Tel: "+ number"); StartactivitY (Intent);}} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds items to the action bar if it is PR Esent.getmenuinflater (). Inflate (R.menu.main, menu); return true;}}

(3)

<linearlayout xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:tools= "http// Schemas.android.com/tools "    android:layout_width=" fill_parent "    android:layout_height=" Fill_parent    " android:orientation= "vertical"    tools:context= ". Mainactivity ">    <textview        android:id=" @+id/textview1 "        android:layout_width=" Fill_parent        " android:layout_height= "Wrap_content"        android:text= "Please enter your phone number"/>    <edittext        android:id= "@+id/ EditText1 "        android:layout_width=" match_parent "        android:layout_height=" wrap_content "/>    < Button        android:id= "@+id/button1"        android:layout_width= "wrap_content"        android:layout_height= " Wrap_content "        android:text=" dial "/></linearlayout>

Add permissions to the manifest file:

<uses-permission android:name= "Android.permission.CALL_PHONE"/>

Android instance-make a phone call