Use implicit intent to invoke system dialing, calling program

Action


• Dial Action:intent. Action_dial
• Call Action:intent. Action_call


Permission
• In Android, sensitive operations (privacy-related, secure, and may incur costs)
Requires permission and, before the application is installed on the device, enumerates the permissions requested by the current application, and the user can choose to continue installing the application or not.

• Call permissions are:

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

The first step in mainactivity:

Package Com.example.intent_intentfilter;import Android.net.uri;import Android.os.bundle;import Android.app.activity;import Android.content.intent;import Android.view.menu;import Android.view.View;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.edittext;public Class Mainactivity extends Activity {private EditText et_phonenumber;private Button Btn_dial,btn_call; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_ Main); et_phonenumber = (EditText) Findviewbyid (r.id.et_phonenumber); btn_call = (Button) Findviewbyid (R.id.btn_call); Btn_dial = (Button) Findviewbyid (r.id.btn_dial); Inneronclicklistener listener = new Inneronclicklistener (); btn_ Call.setonclicklistener (listener); Btn_dial.setonclicklistener (listener);} Private class Inneronclicklistener implements onclicklistener{@Overridepublic void OnClick (View v) {//TODO Auto-generated method Stubintent Intent = new intent (); StRing PhoneNumber = Et_phonenumber.gettext (). toString (); The string format for//data is: Tel://10086intent.setdata (Uri.parse ("tel://" +phonenumber)); switch (V.getid ()) {case r.id.btn_call:intent.setaction (intent.action_call); Break;case R.id.btn_ Dial:intent.setAction (intent.action_dial); break;default:break;}}}

Step Two: Add permissions to the configuration file:

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

Use implicit intent to invoke system dialing, calling program