Android 控件之Notification

[quote]
最近一直在研究android，并一边研究一边做应用。其中遇到了把程序通知常驻在Notification栏，并且不能被clear掉的问题。虽然notify()的第一个参数可以写死并clear掉，但这个值我并不想写死，但是这个值如果是随机生成一个数怎么传给Activity，用Intent当中的Bundle是可以传值过去，但是一个Notification消息是没问题，一但有多个消息，这个值就不管用了，大家有什么好的方法？
[/quote]

main.xml布局文件:

<?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">
	<Button android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:id="@+id/button"
		android:text="显示消息提示" />
</LinearLayout>

notification_layout.xml布局文件:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:layout_width="fill_parent" android:layout_height="wrap_content">
	<EditText android:text="启动Notification" android:layout_width="fill_parent"
		android:layout_height="wrap_content" android:editable="false"
		android:cursorVisible="false" android:layout_gravity="center_horizontal" />
</LinearLayout>

IaiaiActivity.java类:

package com.iaiai.activity;

import java.util.Date;
import java.util.Random;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

/**
 * 
 * <p>
 * Title: IaiaiActivity.java
 * </p>
 * <p>
 * E-Mail: [email protected]
 * </p>
 * <p>
 * QQ: 176291935
 * </p>
 * <p>
 * Http: iaiai.iteye.com
 * </p>
 * <p>
 * Create time: 2011-6-26
 * </p>
 * 
 * @author 丸子
 * @version 0.0.1
 */
public class IaiaiActivity extends Activity {

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		Button button = (Button) findViewById(R.id.button);
		View.OnClickListener listener = new View.OnClickListener() {

			@Override
			public void onClick(View view) {
				PendingIntent pending = PendingIntent.getActivity(
						IaiaiActivity.this, 0, new Intent(IaiaiActivity.this,
								NotificationActivity.class), 0);

				Notification noticed = new Notification();
				noticed.icon = R.drawable.icon;
				noticed.tickerText = "状态栏通知";

				// noticed.defaults = Notification.DEFAULT_SOUND; // 使用默认的声音
				// noticed.defaults = Notification.DEFAULT_VIBRATE; // 使用默认的震动
				// noticed.defaults = Notification.DEFAULT_LIGHTS; // 使用默认的Light
				// noticed.defaults = Notification.DEFAULT_ALL; // 所有的都使用默认值
				noticed.defaults = Notification.DEFAULT_SOUND;

				//设置音乐
				// noticed.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");
				// noticed.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6");

				noticed.setLatestEventInfo(IaiaiActivity.this, "这是一个状态栏通知",
						"查看", pending);
				NotificationManager noticedManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
				noticedManager.notify(0, noticed);
			}
		};
		button.setOnClickListener(listener);
	}

	public int getRand() {
		Date date = new Date();
		int year = date.getYear();
		int month = date.getMonth();
		int day = date.getDate();
		return 0;
	}

}

NotificationActivity.java类:

package com.iaiai.activity;

import android.app.Activity;
import android.app.NotificationManager;
import android.os.Bundle;

/**
 * 
 * <p>
 * Title: NotificationActivity.java
 * </p>
 * <p>
 * E-Mail: [email protected]
 * </p>
 * <p>
 * QQ: 176291935
 * </p>
 * <p>
 * Http: iaiai.iteye.com
 * </p>
 * <p>
 * Create time: 2011-6-26
 * </p>
 * 
 * @author 丸子
 * @version 0.0.1
 */
public class NotificationActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setContentView(R.layout.notification_layout);

		Bundle bundle = getIntent().getExtras();

		NotificationManager noticedManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
		noticedManager.cancel(0);
	}

}

运行结果:

[img]http://dl.iteye.com/upload/attachment/505287/e52382b1-3f91-3474-886d-3d1a5710804f.jpg[/img]

[img]http://dl.iteye.com/upload/attachment/505288/584e667c-d404-37e2-8dad-86f9f23d78e4.jpg[/img]