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

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本文资源借助于网友：幻影浪子
- 主题：用户界面之Notification(通知栏)
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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