android 4.0 前后很多api都有了较大的差别,不多说现在学习下notification前后实现的差别,本文参考了
:http://my.oschina.net/ososchina/blog/353692;http://gundumw100.iteye.com/blog/1873318;
http://blog.youkuaiyun.com/wukunting/article/details/5661769
先把没有注释的代码贴上,不明白的还可以看下面的带带注释的代码,希望对跟我一样的初学者有所帮助:
代码:
public class MainActivity extends ActionBarActivity {
private static final int NOTIFY_ID = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void tell(View v)
{
// **************android 4.0后*************************************
String title="mynotice";//通知栏的标题
String store="hahagaga";
NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
//点击notification需要激活的activity,这里设置自己
Intent intent = new Intent(this,MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("store", store);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,intent, PendingIntent.FLAG_UPDATE_CURRENT);//FLAG_ONE_SHOT
Notification notification = new Notification.Builder(getApplicationContext())
.setContentTitle(title)
.setContentText(store)
.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.hahagaga)
.setAutoCancel(true)
.setWhen(System.currentTimeMillis())
// .setDefaults(Notification.DEFAULT_ALL) //所有的设为系统默认,一般和短信通知一样
.build();
//led灯的显示
notification.ledARGB = Color.RED;
notification.ledOffMS = 0;
notification.ledOnMS = 1;
notification.flags = notification.flags | Notification.FLAG_SHOW_LIGHTS;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
long[] vibrate = new long[] { 1000, 1000, 1000, 1000};
notification.vibrate = vibrate;
Uri uri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.zp1);
notification.sound=uri;
notificationManager.notify(NOTIFY_ID, notification); //第一个参数是标识通知的唯一码,上面自己定义的变量
// **************android 4.0前*************************************
// String title="mynotice";//通知栏的标题
// String store="hahagaga";
// NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
// Notification notification = new Notification();
// notification.flags |= Notification.FLAG_SHOW_LIGHTS;
// notification.flags |= Notification.FLAG_AUTO_CANCEL;
// notification.defaults = Notification.DEFAULT_ALL;
// notification.icon = R.drawable.hahagaga;
// notification.when = System.currentTimeMillis();
//
// Intent intent = new Intent(this,MainActivity.class);
// intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// intent.putExtra("store", store);
// PendingIntent contentIntent = PendingIntent.getActivity(this, 0,intent, PendingIntent.FLAG_UPDATE_CURRENT);//FLAG_ONE_SHOT
// //Change the name of the notification here
// notification.setLatestEventInfo(this, title, store, contentIntent);
// notificationManager.notify(NOTIFY_ID, notification);
}
注释:
public class MainActivity extends ActionBarActivity {
private static final int NOTIFY_ID = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void tell(View v)
{
// **************android 4.0后*************************************
String title="mynotice";//通知栏的标题
String store="hahagaga";
NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
//intent是点击notification后激活的意图
Intent intent = new Intent(this,MainActivity.class);
// 注意:如果要以该Intent启动一个Activity,一定要设置 Intent.FLAG_ACTIVITY_NEW_TASK 标记。
// Intent.FLAG_ACTIVITY_CLEAR_TOP :如果在当前Task中,有要启动的Activity,那么把该Acitivity之前的
// 所有Activity都关掉,并把此Activity置前以避免创建Activity的实例
// Intent.FLAG_ACTIVITY_NEW_TASK :系统会检查当前所有已创建的Task中是否有该要启动的Activity的Task,
// 若有,则在该Task上创建Activity,若没有则新建具有该Activity属性的Task,并在该新建的Task上创建
// Activity。更多请参见 “ (转载)Android下Affinities和Task ”
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("store", store);
//contentIntent是修饰intent的
// Intent :意图,即告诉系统我要干什么,然后系统根据这个Intent做对应的事。如startActivity相当于发送消息,
// 而Intent是消息的内容。
// PendingIntent :包装Intent,Intent 是我们直接使用 startActivity , startService 或 sendBroadcast
// 启动某项工作的意图。而某些时候, 我们并不能直接调用startActivity , startServide 或 sendBroadcast ,
// 而是当程序或系统达到某一条件才发送Intent。如这里的Notification,当用户点击Notification之后,由系统发
// 出一条Activity 的 Intent 。因此如果我们不用某种方法来告诉系统的话,系统是不知道是使用 startActivity,
// startService 还是 sendBroadcast 来启动Intent 的(当然还有其他的“描述”),因此这里便需要PendingIntent。
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,intent, PendingIntent.FLAG_UPDATE_CURRENT);//FLAG_ONE_SHOT
Notification notification = new Notification.Builder(getApplicationContext())
.setContentTitle(title)
.setContentText(store)
.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.hahagaga)
.setAutoCancel(true)
.setWhen(System.currentTimeMillis())
// .setDefaults(Notification.DEFAULT_ALL) //所有的设为系统默认,一般和短信通知一样,设置默认后面的设置就不起作用了
.build();
//设置默认 DEFAULT_LIGHTS 默认灯
//DEFAULT_SOUND 默认声音
//DEFAULT_VIBRATE 默认震动
//DEFAULT_ALL 以上默认
//led灯的显示
notification.ledARGB = Color.RED;
notification.ledOffMS = 0;
notification.ledOnMS = 1;
notification.flags = notification.flags | Notification.FLAG_SHOW_LIGHTS;
// 通常为了简便写成notification.flags |= Notification.FLAG_SHOW_LIGHTS;,这样可以为通知设置多个flag
notification.flags |= Notification.FLAG_AUTO_CANCEL;
//通知来时候震动,vibrate是震动的方式,
// long[] vibrate :自定义震动模式 。数组中数字的含义依次是[静止时长,震动时长,静止时长,震动时长。。。]时长的单位是毫秒
long[] vibrate = new long[] { 1000, 1000, 1000, 1000};
notification.vibrate = vibrate;
// 设置声音
// 获取工程文件下的资源的uri方式和获取sd卡路径的方式//Uri.parse("/data/data/zp1.mp3");
Uri uri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.zp1);
notification.sound=uri;
//启动notification
notificationManager.notify(NOTIFY_ID, notification); //第一个参数是标识通知的唯一码,上面自己定义的变量
// **************android 4.0前*************************************
// String title="mynotice";//通知栏的标题
// String store="hahagaga";
// NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
// Notification notification = new Notification();
// notification.flags |= Notification.FLAG_SHOW_LIGHTS;
// notification.flags |= Notification.FLAG_AUTO_CANCEL;
// notification.defaults = Notification.DEFAULT_ALL;
// notification.icon = R.drawable.hahagaga;
// notification.when = System.currentTimeMillis();
//
// Intent intent = new Intent(this,MainActivity.class);
// intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// intent.putExtra("store", store);
// PendingIntent contentIntent = PendingIntent.getActivity(this, 0,intent, PendingIntent.FLAG_UPDATE_CURRENT);//FLAG_ONE_SHOT
// //Change the name of the notification here
// notification.setLatestEventInfo(this, title, store, contentIntent);
// notificationManager.notify(NOTIFY_ID, notification);
}
}