Notification的使用

1.普通的通知

package mobile.android.notification;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;

public class Main extends Activity
{
private NotificationManager mNotificationManager;

public void onClick_ShowCommonNotification(View view)
{
Notification.Builder builder = new Notification.Builder(this)
.setSmallIcon(R.drawable.smile).setContentTitle("笑脸通知")
.setContentText("图标显示在左侧!");
mNotificationManager.notify(1, builder.build());
}

public void onClick_ShowBigIconNotification(View view)
{
Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
R.drawable.smile);
Notification.Builder builder = new Notification.Builder(this)
.setSmallIcon(R.drawable.why).setLargeIcon(bitmap)
.setContentTitle("大图标笑脸").setContentText("大图标放在左侧，小图标放在右下角!");

mNotificationManager.notify(2, builder.build());

}

public void onClick_ShowBigPictureNotification(View view)
{
// 必须先清除大图Notification，否则再次显示时抛出异常
mNotificationManager.cancel(3);
Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
R.drawable.big);

Notification notification = new Notification.BigPictureStyle(
new Notification.Builder(this).setContentTitle("Big Picture")
.setContentText("大图").setSmallIcon(R.drawable.wrath))
.bigPicture(bitmap).build();

mNotificationManager.notify(3, notification);

}

public void onClick_ShowInfoNotification(View view)
{
Notification.Builder builder1 = new Notification.Builder(this)
.setSmallIcon(R.drawable.why).setContentTitle("Info")
.setContentText("文本信息显示在右下角!").setContentInfo("信息");

mNotificationManager.notify(4, builder1.build());

// setContentInfo优先，有setContentInfo，setNumber不起作用
Notification.Builder builder2 = new Notification.Builder(this)
.setSmallIcon(R.drawable.wrath).setContentTitle("Number")
.setContentText("数字显示在右下角!").setNumber(25);

mNotificationManager.notify(5, builder2.build());

}

public void onClick_ShowProgressNotification(View view)
{
Notification.Builder builder1 = new Notification.Builder(this)
.setSmallIcon(R.drawable.smile).setContentTitle("Determinate Progress")
.setContentText("显示进度的进度条!").setProgress(100, 25, false);
mNotificationManager.notify(6, builder1.build());
Notification.Builder builder2 = new Notification.Builder(this)
.setSmallIcon(R.drawable.why).setContentTitle("Indeterminate Progress")
.setContentText("未显示进度的进度条!").setProgress(100, 25, true);
mNotificationManager.notify(7, builder2.build());
}
public void onClick_ClearAllNotification(View view)
{
mNotificationManager.cancelAll();
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
}
}2.自定义Notification
布局文件Notification.xml

<?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">
<TextView android:id="@+id/textview" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:text="自定义内容"
android:textColor="#F00" android:textSize="20sp" android:gravity="center" />
<ImageView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:src="@drawable/smile"
android:layout_gravity="center" />

</LinearLayout>
Java代码

package mobile.android.custom.notification;

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.RemoteViews;

public class Main extends Activity
{
private NotificationManager mNotificationManager;

@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
}

public void onClick_ShowNotification(View view)
{

RemoteViews remoteViews = new RemoteViews(getPackageName(),
R.layout.notification);
remoteViews.setTextViewText(R.id.textview, "更新自定义内容");

Notification.Builder builder = new Notification.Builder(this)
.setSmallIcon(R.drawable.smile).setContent(remoteViews);

mNotificationManager.notify(1, builder.build());

}
}

3.结合Pendingintent

RemoteViews remoteViews=new RemoteViews(getPackageName(),R.layout.layout_notification);

Intent intent=new Intent(this,ExpandableListViewActivity.class);
PendingIntent pendingIntent=PendingIntent.getActivity(this,1,intent,PendingIntent.FLAG_UPDATE_CURRENT);
Notification notification=new Notification.Builder(this).setContentTitle("通知")
.setContentText("1021589")
.setSmallIcon(R.drawable.wait)
.setDefaults(Notification.DEFAULT_ALL)
.setContent(remoteViews)
.setContentIntent(pendingIntent)
.build();
manager.notify(1,notification);