步步为营_Android开发课[21]_用户界面之Notification(通知栏)

Focus on technology, enjoy life！—— QQ：804212028

浏览链接：http://blog.csdn.net/y18334702058/article/details/44624305

- 主题：用户界面之Notification(通知栏)

-

Notification实例(含系统自带Notification+半自定义Notification+自定义Notification)

activity_main.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">
    <Button
        android:id="@+id/le10bt01"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="BaseNotification"
    />
    <Button
        android:id="@+id/le10bt02"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="UpdateBaseNotification"
    />
    <Button
        android:id="@+id/le10bt03"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="ClearBaseNotification"
    />
    <Button
        android:id="@+id/le10bt04"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="MediaNotification"
    />
    <Button
        android:id="@+id/le10bt05"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="ClearMediaNotification"
    />
    <Button
        android:id="@+id/le10bt06"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="ClearALL"
    />
    <Button
        android:id="@+id/le10bt07"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="CustomNotification"
    />
</LinearLayout>  

MainActivity.java:

package com.example.demo2;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore.Audio;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RemoteViews;

public class MainActivity extends Activity {
    private NotificationManager nm;
    private PendingIntent pd;
    private Button bt01,bt02,bt03,bt04,bt05,bt06,bt07,bt08;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        init();
    }

    private void init() {
        bt01 = (Button)findViewById(R.id.le10bt01);
        bt02 = (Button)findViewById(R.id.le10bt02);
        bt03 = (Button)findViewById(R.id.le10bt03);
        bt04 = (Button)findViewById(R.id.le10bt04);
        bt05 = (Button)findViewById(R.id.le10bt05);
        bt06 = (Button)findViewById(R.id.le10bt06);
        bt07 = (Button)findViewById(R.id.le10bt07);  

        bt01.setOnClickListener(onclick);
        bt02.setOnClickListener(onclick);
        bt03.setOnClickListener(onclick);
        bt04.setOnClickListener(onclick);
        bt05.setOnClickListener(onclick);
        bt06.setOnClickListener(onclick);
        bt07.setOnClickListener(onclick);  

        nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
        Intent intent = new Intent(this,MainActivity.class);
        pd = PendingIntent.getActivity(MainActivity.this, 0, intent, 0);
    }

    OnClickListener onclick = new OnClickListener() {  

        //BASE Notification ID
        private int Notification_ID_BASE = 1;  

        private Notification baseNF;  

        //MediaNotification ID
        private int Notification_ID_MEDIA = 2; 

        private Notification mediaNF;

        //CustomNotification ID
        private int Notification_ID_CUSTOM = 3; 

        private Notification customNF;

        @Override
        public void onClick(View v) {
            switch(v.getId()) {
                case R.id.le10bt01:
                    //新建状态栏通知
                    baseNF = new Notification();  

                    //设置通知在状态栏显示的图标
                    baseNF.icon = R.drawable.myimage;  

                    //通知时在状态栏显示的内容
                    baseNF.tickerText = "You clicked baseNF!";
                    //通知在状态栏显示时间
                    baseNF.when = System.currentTimeMillis();  

                    //此处采用默认
                    baseNF.defaults |= Notification.DEFAULT_SOUND;
                    baseNF.defaults |= Notification.DEFAULT_VIBRATE;
                    baseNF.defaults |= Notification.DEFAULT_LIGHTS;  

                    //让声音、振动无限循环，直到用户响应
                    baseNF.flags |= Notification.FLAG_INSISTENT;  

                    //通知被点击后，自动消失
                    baseNF.flags |= Notification.FLAG_AUTO_CANCEL;  

                    //点击‘Clear‘时，不清楚该通知(QQ的通知无法清除，就是用的这个)
                    baseNF.flags |= Notification.FLAG_NO_CLEAR;  

                    //第二个参数 ：下拉状态栏时显示的消息标题 expanded message title
                    //第三个参数：下拉状态栏时显示的消息内容 expanded message text
                    //第四个参数：点击该通知时执行页面跳转
                    baseNF.setLatestEventInfo(MainActivity.this, "Title01", "Content01", pd);  

                    //发出状态栏通知  

                    nm.notify(Notification_ID_BASE, baseNF);  

                    break;  

                case R.id.le10bt02:
                    //更新通知
                    //比如状态栏提示有一条新短信，还没来得及查看，又来一条新短信的提示。
                    //此时采用更新原来通知的方式比较。
                    //(再重新发一个通知也可以，但是这样会造成通知的混乱，而且显示多个通知给用户，对用户也不友好)
                    baseNF.setLatestEventInfo(MainActivity.this, "Title02", "Content02", pd);
                    nm.notify(Notification_ID_BASE, baseNF);
                    break;  

                case R.id.le10bt03:  

                    //清除 baseNF
                    nm.cancel(Notification_ID_BASE);
                    break;  

                case R.id.le10bt04:
                    mediaNF = new Notification();
                    mediaNF.icon = R.drawable.myimage;
                    mediaNF.tickerText = "You clicked mediaNF!";
                    mediaNF.when = System.currentTimeMillis();
                    //自定义声音
                    mediaNF.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6");  

                    //通知时发出的振动
                    //第一个参数: 振动前等待的时间
                    //第二个参数： 第一次振动的时长、以此类推
                    long[] vir = {0,100,200,300};
                    mediaNF.vibrate = vir;  

                   mediaNF.setLatestEventInfo(MainActivity.this, "Title03", "Content03", pd);  

                    nm.notify(Notification_ID_MEDIA, mediaNF);
                    break;  

                case R.id.le10bt05:
                    //清除 mediaNF
                    nm.cancel(Notification_ID_MEDIA);
                    break;  

                case R.id.le10bt06:
                    nm.cancelAll();
                    break;  

                case R.id.le10bt07:
                    //自定义下拉视图，比如下载软件时，显示的进度条。
                    customNF = new Notification();  

                    customNF.icon = R.drawable.myimage;
                    customNF.tickerText = "Custom!";  

                    RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom);
                    contentView.setImageViewResource(R.id.image, R.drawable.myimage);
                    contentView.setTextViewText(R.id.text, "Hello, this message is in a custom expanded view");  

                    customNF.contentView = contentView;  

                    //使用自定义下拉视图时，不需要再调用setLatestEventInfo()方法
                    //但是必须定义 contentIntent
                    customNF.contentIntent = pd;  

                    nm.notify(Notification_ID_CUSTOM, customNF);
                    break;
            }
        }
    };
}  

自定义notification的布局custom.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="horizontal"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:padding="3dp"
              >
    <ImageView android:id="@+id/image"
              android:layout_width="wrap_content"
              android:layout_height="fill_parent"
              android:layout_marginRight="10dp"
              />
    <TextView android:id="@+id/text"
              android:layout_width="wrap_content"
              android:layout_height="fill_parent"
              android:textColor="#000"
              />
</LinearLayout>  

运行结果：

通知栏：

Focus on technology, enjoy life！—— QQ：804212028

浏览链接：http://blog.csdn.net/y18334702058/article/details/44624305