通知栏notification的使用

其中在android的文档中有关于这方面的介绍 具体为  Dev Guide 下的 User iNTERFACE 下的Notifications

其中主要分3种:Toast Notification (Toast就不用说了 大家都知道) 然后是Status Bar Notification(通知栏消息)以及Dialog Notification 这里主要介绍的通知栏

一共4个步骤 在文档中都有说明 下面就直接上代码了 具体的自己看文档吧

代码包含直接发送一个通知，以及自定义notification

两个布局文件

mian.xml

<?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="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click"
        android:text="显示一个提示消息" />
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click2"
        android:text="显示一个自定义的消息" />
</LinearLayout>

notification.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="10dp" >

    <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_alignParentLeft="true"
        android:layout_marginRight="10dp"
        android:src="@drawable/ic_launcher" />

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/image"
        android:text="我是自定义的标题" />

    <ProgressBar
        android:id="@+id/pb"
       
        android:layout_width="200dip"
        android:layout_height="wrap_content"
        android:layout_below="@id/title"
        android:layout_toRightOf="@id/image"
        android:progress="30"
        android:max="100" />


</RelativeLayout>

activity

package cn.itcast.notify;

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.RemoteViews;

public class DemoActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    public  void  click(View view){
        //1.得到系统与notification相关的服务
        NotificationManager   nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        
        //2.初始化 一个 notification的对象 ,让notificationmanager显示
        Notification notification = new Notification(R.drawable.notification, "我是notification", System.currentTimeMillis());
        
        //3.设置notification的具体的参数
        notification.flags = Notification.FLAG_AUTO_CANCEL; //标示当前的notification不会被清除掉
        // notification.sound 指定notification的声音
        // notification.vibrate long[]{200,100,200}
        notification.icon = R.drawable.notification;
        Intent intent = new Intent(this,DemoActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        notification.setLatestEventInfo(this, "我是正文的标题", "我是具体的内容", contentIntent);
        
        //4.利用notification的管理器把notification显示出来
        nm.notify(0, notification);
        //nm.cancel(id)
    }
    
    public  void  click2(View view){
        //1.得到系统与notification相关的服务
        NotificationManager   nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        
        //2.初始化 一个 notification的对象 ,让notificationmanager显示
        Notification notification = new Notification(R.drawable.notification, "我是notification", System.currentTimeMillis());
        
        //3.创建一个remoteview的对象
        RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.notification);
        contentView.setTextViewText(R.id.title, "Custom notification");
        //contentView.setTextViewText(R.id.text, "This is a custom layout");
        contentView.setProgressBar(R.id.pb, 100, 30, true);
        notification.contentView = contentView;
        Intent notificationIntent = new Intent(this, DemoActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
        notification.contentIntent = contentIntent;
        
        //4.利用notification的管理器把notification显示出来
        nm.notify(2, notification);
        //nm.cancel(id)
    }
}

基础/day07/notification