[android]_[Notication的使用]

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>