Android PendingIntent和Intent

Notification n = 
new
 Notification(R.drawable.face_1, 
"Service启动"
, System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(this
, 
0
, 
new
 Intent(
this
, TServiceHolder.
class
), 
0
);
n.setLatestEventInfo(this
, 
"任务标题"
, 
"任务内容"
, contentIntent);
nManager.notify(NOTIFICATION_ID, n); // 任务栏启动

Notification n = new Notification(R.drawable.face_1, "Service启动", System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, TServiceHolder.class), 0);
n.setLatestEventInfo(this, "任务标题", "任务内容", contentIntent);
nManager.notify(NOTIFICATION_ID, n); // 任务栏启动

PendingIntent和Intent的区别：An Intent is something that is used right now; a PendingIntent is something that may create an Intent in the future. You will use a PendingIntent with Notifications, AlarmManager, etc.

 

1. GSM网络中android发送短信示例

（1）代码节选

String msg =
"你好，美女"
;
String number = "135****6784"
;
SmsManager sms = SmsManager.getDefault();

PendingIntent pi = PendingIntent.getBroadcast(SmsActivity.this
,
0
,
new
 Intent(...),
0
);
sms.sendTextMessage(number, null
, msg, pi, 
null
);
Toast.makeText(SmsActivity.this
,
"发送成功"
,Toast.LENGHT_LONG).show();

String msg ="你好，美女";
String number = "135****6784";
SmsManager sms = SmsManager.getDefault();

PendingIntent pi = PendingIntent.getBroadcast(SmsActivity.this,0,new Intent(...),0);
sms.sendTextMessage(number, null, msg, pi, null);
Toast.makeText(SmsActivity.this,"发送成功",Toast.LENGHT_LONG).show();

 （2）代码解释

      PendingIntent就是一个Intent的描述，我们可以把这个描述交给别的程序，别的程序根据这个描述在后面的别的时间做你安排做的事情 （By giving a PendingIntent to another application, you are granting it the right to perform the operation you have specified as if the other application was yourself，就相当于PendingIntent代表了Intent）。本例中别的程序就是发送短信的程序，短信发送成功后要把intent广播出 去 。
      函数SmsManager.sendTextMessage(String destinationAddress, String scAddress, String text, PendingIntent sentIntent, PendingIntent deliveryIntent)中参数解释：
      1）PendingIntent sentIntent：当短信发出时，成功的话sendIntent会把其内部的描述的intent广播出去，否则产生错误代码并通过 android.app.PendingIntent.OnFinished进行回调，这个参数最好不为空，否则会存在资源浪费的潜在问题；
      2）PendingIntent deliveryIntent：是当消息已经传递给收信人后所进行的PendingIntent广播。
      查看PendingIntent 类可以看到许多的Send函数，就是PendingIntent在进行被赋予的相关的操作。