[android]_[Notication的使用]

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相信多数人都知道安卓上的通知，这原本是安卓系统的一大特点，早期iOS和wp还没有。

一、创建通知的步骤：

1.创建NotificationManager

2.创建Notification

3.调用NotificationManager的方法notify()产生通知

代码如下：

NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);Notification notification = new Notification.Builder(this).setContentTitle("This is content title").setContentText("This is ticker text").setSmallIcon(R.mipmap.ic_launcher).build();manager.notify(1, notification);

二、通知的其它属性

1.点击通知框弹出窗口

2.弹出窗口后关闭通知

例子完整代码：

MainActivity：

package com.example.administrator.notification;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Context;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Button sendNotice;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        sendNotice = (Button) findViewById(R.id.send_notice);        sendNotice.setOnClickListener(this);    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.send_notice:                NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);                Intent intent = new Intent(this, NotificationActivity.class);                PendingIntent pi = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);                Notification notification = new Notification.Builder(this)                        .setContentTitle("This is content title")                        .setContentText("This is ticker text")                        .setContentIntent(pi)                        .setSmallIcon(R.mipmap.ic_launcher)                        .build();                manager.notify(1, notification);                break;            default:                break;        }    }}

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?><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:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">    <Button        android:id="@+id/send_notice"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Send notice"        /></RelativeLayout>

NotificationActivity:

package com.example.administrator.notification;import android.app.Activity;import android.app.NotificationManager;import android.os.Bundle;/** * Created by Administrator on 2016/2/21. */public class NotificationActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.notification_layout);        NotificationManager manager = (NotificationManager)                getSystemService(NOTIFICATION_SERVICE);        manager.cancel(1);    }}

notification_layout.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerInParent="true"        android:textSize="24sp"        android:text="This is notification layout"        /></LinearLayout>

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