通知栏的使用

创建自定义的通知栏

package com.loaderman.notificationdemo;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.support.v7.app.AppCompatActivity;
import android.widget.RemoteViews;

public class MainActivity extends AppCompatActivity {

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

        //自定义布局
        showCustomizeNotification();
        showDefaultNotification();
    }

    //自定义显示的通知 ，创建RemoteView对象
    private void showCustomizeNotification() {

        int icon = R.drawable.logo;
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
        PendingIntent contentIntent = PendingIntent.getActivity
                (MainActivity.this, 0, new Intent("android.settings.SETTINGS"), 0);
        builder.setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(icon) //不设置出不来效果
                .setDefaults(Notification.DEFAULT_LIGHTS | Notification.DEFAULT_SOUND)
                .setContentIntent(contentIntent)
                .setContentInfo("Info");
        // 1、创建一个自定义的消息布局 view.xml
        // 2、在程序代码中使用RemoteViews的方法来定义image和text。然后把RemoteViews对象传到contentView字段
        RemoteViews remoteView = new RemoteViews(this.getPackageName(), R.layout.notification);
        remoteView.setImageViewResource(R.id.image, R.mipmap.ic_launcher);
        remoteView.setTextViewText(R.id.text, "通知类型为：自定义View");
        remoteView.setTextColor(R.id.text, Color.RED);
        builder.setContent(remoteView);
        // 3、为Notification的contentIntent字段定义一个Intent(注意，使用自定义View不需要setLatestEventInfo()方法)
        //点击后启动Settings模块
        NotificationManager mnotiManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        mnotiManager.notify(0, builder.build());

    }

    // 默认显示的的Notification
    private void showDefaultNotification() {
        // 定义Notication的各种属性
        int icon = R.drawable.logo;
        Intent intent = new Intent(this, MainActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
        builder.setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(icon)
                .setTicker("Hearty365")
                .setContentTitle("通知标题")
                .setContentText("我是消息")
                .setDefaults(Notification.DEFAULT_LIGHTS | Notification.DEFAULT_SOUND)
                .setContentIntent(contentIntent)
                .setContentInfo("Info");
        NotificationManager notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(1, builder.build());

    }

    private void removeNotification() {
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        // 取消的只是当前Context的Notification
        mNotificationManager.cancel(2);
    }
}

 notification.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:orientation="horizontal">

    <ImageView
        android:id="@+id/image"
        android:src="@mipmap/ic_launcher"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"/>

    <TextView
        android:id="@+id/text"
        android:text="dasdsadsad"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/image"
      />

    <ProgressBar
        android:id="@+id/progress_horizontal"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/text"
        android:layout_toRightOf="@+id/image"
        android:max="100"
        android:progress="50"
        android:secondaryProgress="75"/>


</RelativeLayout>

 效果图: