学步园

package com.example.notificationtest;

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

public class MainActivity extends Activity {

	Context cxt = this;
	TextView m_txtView;

	NotificationManager m_NotificationManager;

	Notification m_Notification;

	Intent m_Intent;

	PendingIntent m_PendingIntent;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		m_NotificationManager = (NotificationManager) this
				.getSystemService(NOTIFICATION_SERVICE);

		m_Intent = new Intent(cxt, DesActivity.class);

		m_PendingIntent = PendingIntent.getActivity(cxt, 0, m_Intent, 0);

		m_Notification = new Notification();
	}

	public void b_click(View v) {
		m_Notification.icon = R.drawable.ic_launcher;

		m_Notification.tickerText = "通知......";

		m_Notification.setLatestEventInfo(cxt, "title......", "content......",
				m_PendingIntent);

		m_NotificationManager.notify(0, m_Notification);
	}

}

<pre name="code" class="java">package com.example.notificationtest;

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

public class DesActivity extends Activity {
	NotificationManager m_NotificationManager;

	@Override
	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		TextView t = new TextView(this);
		t.setText("hello");

		this.setContentView(t);

		// 启动后删除之前我们定义的

		m_NotificationManager = (NotificationManager) this
				.getSystemService(NOTIFICATION_SERVICE);

		m_NotificationManager.cancel(0);

	}

}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="b_click"
        android:text="@string/hello_world" />

</RelativeLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.notificationtest"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.notificationtest.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="com.example.notificationtest.DesActivity" >
        </activity>
    </application>

</manifest>