Android ApiDemos示例解析(91):OS->SMS Messaging

本例介绍Android收发短信，可以使用实际的设备，如果使用模拟器，可以启动两个模拟器来测试，可以参见Android简明开发教程二十：Broadcast Receiver 短信触发示例

本例还使用了TTS来读出收到的短信内容SmsReceivedDialog 中使用TextToSpeech 类来读出文字，TextToSpeech的用法可以参见Android ApiDemos示例解析(45)：App->Text-To-Speech

本例如果Enable SMS broadcast receiver ，允许手机在收到短信时自动启动Acitivity（由SmsMessageReceiver触发SmsReceivedDialog），使用Broadcast receiver 也请参见Android简明开发教程二十：Broadcast Receiver 短信触发示例，不过本例是通过PackageManage动态注册Broadcast Receiver的方法：

[java]
final PackageManager pm = this.getPackageManager();
final ComponentName componentName
= new ComponentName("com.example.android.apis",
"com.example.android.apis.os.SmsMessageReceiver");

enableCheckBox
.setChecked(pm.getComponentEnabledSetting(componentName) ==
PackageManager.COMPONENT_ENABLED_STATE_ENABLED);

enableCheckBox.setOnCheckedChangeListener(
new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
Log.d(TAG, (isChecked ? "Enabling" : "Disabling")
+ " SMS receiver");

pm.setComponentEnabledSetting(componentName,
isChecked ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
: PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
});

final PackageManager pm = this.getPackageManager();
final ComponentName componentName
= new ComponentName("com.example.android.apis",
"com.example.android.apis.os.SmsMessageReceiver");

enableCheckBox
.setChecked(pm.getComponentEnabledSetting(componentName) ==
PackageManager.COMPONENT_ENABLED_STATE_ENABLED);

enableCheckBox.setOnCheckedChangeListener(
new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
Log.d(TAG, (isChecked ? "Enabling" : "Disabling")
+ " SMS receiver");

pm.setComponentEnabledSetting(componentName,
isChecked ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
: PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
});下面来介绍收发短信SMS，短信可以分两种一种为Text Message 主要给人来阅读，另外一种为Data Message (binary)可以发个另外的应用。

在Android在收发SMS是通过SmsManager来完成。可以通过SmsManager.getDefault()来取得一个SmsManager对象

[java]
SmsManager sms = SmsManager.getDefault();

SmsManager sms = SmsManager.getDefault();此外需要在AndroidManifest.xml在添加使用SMS对应的权限：

<uses-permission android:name=”android.permission.SEND_SMS” />
<uses-permission android:name=”android.permission.RECEIVE_SMS” />

简单的发送一条短信：

[java]
String sendTo="123456789";
String myMessage="Greetings from Guidebee";
smsManager.sendText(sendTo,null,myMessage,null,null);

String sendTo="123456789";
String myMessage="Greetings from Guidebee";
smsManager.sendText(sendTo,null,myMessage,null,null);public final void sendTextMessage(String destinationAddress, String scAddress, String text, PendingIntent sentIntent, PendingIntent deliveryIntent)

destinationAddress : 目标地址，手机号码
scAddress：短信中心号码，为null时使用缺省短信中心号码。
text: 发送的信息内容。
sendIntent: 如果非空，可以来跟踪短信发送的状态：已发送，发送失败等。
deliveryIntent: 如果非空，但短信发送到目标时通知发送者。
本例定义了sendIntent来跟踪SMS发送的状态：

[java]
sms.sendTextMessage(recipient, null, message, PendingIntent.getBroadcast(
SmsMessagingDemo.this, 0,
new Intent(ACTION_SMS_SENT), 0), null);

...
// Register broadcast receivers for SMS sent and delivered intents
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String message = null;
boolean error = true;
switch (getResultCode()) {
case Activity.RESULT_OK:
message = "Message sent!";
error = false;
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
message = "Error.";
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
message = "Error: No service.";
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
message = "Error: Null PDU.";
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
message = "Error: Radio off.";
break;
}

recipientTextEdit.setEnabled(true);
contentTextEdit.setEnabled(true);
contentTextEdit.setText("");

statusView.setText(message);
statusView.setTextColor(error ? Color.RED : Color.GREEN);
}
}, new IntentFilter(ACTION_SMS_SENT));
}

sms.sendTextMessage(recipient, null, message, PendingIntent.getBroadcast(
SmsMessagingDemo.this, 0,
new Intent(ACTION_SMS_SENT), 0), null);

...
// Register broadcast receivers for SMS sent and delivered intents
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String message = null;
boolean error = true;
switch (getResultCode()) {
case Activity.RESULT_OK:
message = "Message sent!";
error = false;
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
message = "Error.";
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
message = "Error: No service.";
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
message = "Error: Null PDU.";
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
message = "Error: Radio off.";
break;
}

recipientTextEdit.setEnabled(true);
contentTextEdit.setEnabled(true);
contentTextEdit.setText("");

statusView.setText(message);
statusView.setTextColor(error ? Color.RED : Color.GREEN);
}
}, new IntentFilter(ACTION_SMS_SENT));
}

类似的

public final void sendDataMessage(String destinationAddress, String scAddress, short destinationPort, byte[] data, PendingIntent sentIntent, PendingIntent deliveryIntent)可以用来发送Data message.

作者：mapdigit

补充：移动开发 , Android ,