Android-Basic Knowledge: smsManager. sendTextMessage () sends Short Messages

Use SmsManager to send information. smsManager is a default instance of SmsManager. SmsManager smsManager = SmsManager. getDefault ();

SmsManager. sendTextMessage (destinationAddress, scAddress, text, sentIntent, deliveryIntent)

DestinationAddress: Recipient number

ScAddress: the service number of the SMS center. Set it to null.

Text: Sent content

SentIntent: sends the message Result Status Signal (whether the message is sent successfully). A new Intent is sent. The Intent will be broadcast after the operating system receives the signal. This process is asynchronous.

DeliveryIntent: Status Signal received by the recipient (whether received successfully ).

To use the system message sending function, add <uses-permission android: name = "android. permisson. SEND_SMS"/> to AndroidMainfest. xml.

　　

AndroidMainfest. xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.PhoneSMS.melody"
      android:versionCode="1"
      android:versionName="1.0">
<uses-sdk android:minSdkVersion="10"/>

<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".PhoneSMSActivity"
                  android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>

</application>
<uses-permission android:name="android.permission.SEND_SMS"/>
</manifest>

 

1. Interface Design res/layout/main. xml

 

Main. xml

<? Xml version = "1.0" encoding = "UTF-8"?>
<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Android: orientation = "vertical" android: layout_width = "fill_parent"
Android: layout_height = "fill_parent">
<! -- Edit the receiving number -->
<TextView android: layout_width = "fill_parent"
Android: layout_height = "wrap_content" android: text = "@ string/textSMSTo"/>
<EditText android: layout_width = "fill_parent"
Android: layout_height = "wrap_content" android: lines = "3" android: hint = "@ string/edtSMSTo"
Android: id = "@ + id/edtSMSTo"/>
<! -- Edit the sent content -->
<TextView android: layout_width = "fill_parent"
Android: layout_height = "wrap_content" android: text = "@ string/textContent"/>
<EditText android: layout_width = "fill_parent"
Android: layout_height = "wrap_content" android: lines = "3"
Android: hint = "@ string/edtContent" android: id = "@ + id/edtContent"/>
<! -- Send -->
<Button android: layout_width = "wrap_content"
Android: layout_height = "wrap_content" android: text = "@ string/btnSent"
Android: id = "@ + id/btnSent"/>

</LinearLayout>

 

2. Character variable res/values/strings. xml

 

Strings. xml

<? Xml version = "1.0" encoding = "UTF-8"?>
<Resources>
<String name = "hello"> Hello World, PhoneSMSActivity! </String>
<String name = "app_name"> PhoneSMS </string>
<String name = "textSMSTo"> recipient </string>
<String name = "edtSMSTo"> recipient number </string>
<String name = "textContent"> sent content </string>
<String name = "edtContent"> input content </string>
<String name = "btnSent"> send </string>
</Resources>

3. Write Activity code

　　

PhoneSMSActivity. java

Package com. PhoneSMS. melody;

Import java. util. List;

Import android. app. Activity;
Import android. OS. Bundle;
Import android. telephony. SmsManager;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. Button;
Import android. widget. EditText;
Import android. widget. Toast;

Public class PhoneSMSActivity extends Activity implements OnClickListener {
Private EditText edtSMSTo = null; // recipient Control
Private EditText edtContent = null; // send content control
Private Button btnSent = null; // send the btn Control
Private String SMSTo = null; // recipient number
Private String SMSContent = null; // sent content


/** Called when the activity is first created .*/
@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );

/**
* Get controls
*/
EdtSMSTo = (EditText) this. findViewById (R. id. edtSMSTo );
EdtContent = (EditText) this. findViewById (R. id. edtContent );
BtnSent = (Button) this. findViewById (R. id. btnSent );

// Obtain the recipient's number
SMSTo = edtSMSTo. getText (). toString ();
// Obtain the sent content
SMSContent = edtContent. getText (). toString ();
// Set listener events
BtnSent. setOnClickListener (this );
}

@ Override
Public void onClick (View v ){
Switch (v. getId ()){
Case R. id. btnSent:
/**
* SMS sending Function
*/
// Get the default SMS management object
SmsManager smsManager = SmsManager. getDefault ();
// Determine the number of words in the sent content (up to 70 words for a piece of information)
If (SMSContent. length () <= 70 ){
SmsManager. sendTextMessage (SMSTo, null, SMSContent, null, null );
} Else {
// DivideMessage in the SmsManger class splits the information by 70 words
List <String> smsDivs = smsManager. divideMessage (SMSContent );
For (String sms: smsDivs ){
SmsManager. sendTextMessage (SMSTo, null, sms, null, null );

}
}
Toast. makeText (PhoneSMSActivity. this, "message sent", Toast. LENGTH_SHORT );
Break;
}
}
}