Notification状态栏通知

Notification分为普通通知和自定义的两种，由图标、ticker(提示信息)、标题、内容、时间、事件组成，

普通通知demo：

package com.android.hzynotification;

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;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void send(View v){
        // 1.得到通知管理器
        NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        // 2.构建通知
        Notification notification = new Notification(android.R.drawable.stat_notify_chat, "这是提示信息", System.currentTimeMillis());
        // 3.设置通知点击事件
        Intent intent = new Intent(this,MainActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 100, intent, 0);
        notification.setLatestEventInfo(this, "通知的标题", "通知的内容", contentIntent);
        
        notification.flags = Notification.FLAG_AUTO_CANCEL; // 点击通知后自动消失
        
        // 4.发送通知
        nm.notify(100, notification);
    }
}

自定义通知的布局设置：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >
    
    <ImageView 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher"
        />
    <LinearLayout 
        android:layout_marginLeft="3dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        >
        <TextView 
            android:layout_marginTop="2dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="自定义的通知,专业拦截器"
            />
        <ProgressBar 
            android:layout_marginTop="2dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            style="@android:style/Widget.ProgressBar.Horizontal"
            />
    </LinearLayout>
    

</LinearLayout>

自定义通知代码如下：

　　

package com.android.hzynotification;
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 MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    
    public void costom(View v){
        // 1.得到通知管理器
        NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        // 2.构建通知
        Notification notification = new Notification();
        notification.icon = android.R.drawable.stat_notify_missed_call; // 图标
        notification.tickerText = "有未接电话哦";
        
        RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.content);
        notification.contentView = contentView; // 设置通知显示的布局
        
        // 设置通知点击的事件
        Intent intent = new Intent(this,OtherActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 100, intent, 0);
        notification.contentIntent = contentIntent;
        
        // 设置点击通知后自动消失
        notification.flags = Notification.FLAG_AUTO_CANCEL;
        // 发出通知
        nm.notify(100, notification);
        
    }
}