Android8.0通知 _Android

怀抱观古今，寝食展戏谑。这篇文章主要讲述Android8.0通知相关的知识，希望能为你提供帮助。
android里面经常会使用Notification来显示通知的消息，一般使用NotificationManager来创建通知消息

NotificationManager manger = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); //为了版本兼容选择V7包下的NotificationCompat进行构造 NotificationCompat.Builder builder = new NotificationCompat.Builder(context); //Ticker是状态栏显示的提示 builder.setTicker("1"); //第一行内容通常作为通知栏标题 builder.setContentTitle("推送标题"); //第二行内容通常是通知正文 builder.setContentText("内容"); //可以点击通知栏的删除按钮删除 builder.setAutoCancel(true); //系统状态栏显示的小图标 builder.setSmallIcon(R.mipmap.ic_launcher); Notification notification = builder.build(); notification.sound = Uri.parse("android.resource://" + context.getPackageName() + "/" + R.raw.ti); builder.setDefaults(NotificationCompat.DEFAULT_VIBRATE | NotificationCompat.DEFAULT_LIGHTS); notification.flags |= Notification.FLAG_AUTO_CANCEL; //Intent clickIntent = new Intent(); //点击通知之后要发送的广播 //int id = (int) (System.currentTimeMillis() / 1000); //clickIntent.addCategory(context.getPackageName()); //clickIntent.setAction(JPushInterface.ACTION_NOTIFICATION_OPENED); //clickIntent.putExtra(JPushInterface.EXTRA_EXTRA, bundle.getString(JPushInterface.EXTRA_EXTRA)); //PendingIntent contentIntent = PendingIntent.getBroadcast(context, id, clickIntent, PendingIntent.FLAG_UPDATE_CURRENT); //notification.contentIntent = contentIntent; manger.notify(1, notification);

【Android8.0通知】然而在Android8.0以上的版本并不能看到通知的内容，android8.0需要使用NotificationChannel来处理通知的显示，根据处理得到了以下内容。

package com.snail.monitor.util; import android.annotation.TargetApi; import android.app.NotificationChannel; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.ContextWrapper; import android.content.Intent; import android.graphics.BitmapFactory; import android.graphics.Color; import android.os.Build; import android.support.v4.app.NotificationCompat; import com.snail.monitor.R; import cn.jpush.android.api.JPushInterface; import static android.app.Notification.VISIBILITY_SECRET; import static android.support.v4.app.NotificationCompat.PRIORITY_DEFAULT; /** * Created by zd on 2019/1/7. */public class NotificationUtils extends ContextWrapper {public static final String CHANNEL_ID = "default"; private static final String CHANNEL_NAME = "Default Channel"; private static final String CHANNEL_DESCRIPTION = "this is default channel!"; private NotificationManager mManager; private Context context; private String EXTRA_EXTRA; public NotificationUtils(Context base,String EXTRA_EXTRA) { super(base); context = base; this.EXTRA_EXTRA = EXTRA_EXTRA; if (Build.VERSION.SDK_INT > = Build.VERSION_CODES.O) { createNotificationChannel(); } }@TargetApi(Build.VERSION_CODES.O) private void createNotificationChannel() { NotificationChannel channel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME, NotificationManager.IMPORTANCE_DEFAULT); //是否绕过请勿打扰模式 channel.canBypassDnd(); //闪光灯 channel.enableLights(true); //锁屏显示通知 channel.setLockscreenVisibility(VISIBILITY_SECRET); //闪关灯的灯光颜色 channel.setLightColor(Color.RED); //桌面launcher的消息角标 channel.canShowBadge(); //是否允许震动 channel.enableVibration(true); //获取系统通知响铃声音的配置 channel.getAudioAttributes(); //获取通知取到组 channel.getGroup(); //设置可绕过请勿打扰模式 channel.setBypassDnd(true); //设置震动模式 channel.setVibrationPattern(new long[]{100, 100, 200}); //是否会有灯光 channel.shouldShowLights(); getManager().createNotificationChannel(channel); }private NotificationManager getManager() { if (mManager == null) { mManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); } return mManager; }/** * 发送通知 */ public void sendNotification(String title, String content) { NotificationCompat.Builder builder = getNotification(title, content); getManager().notify(1, builder.build()); }private NotificationCompat.Builder getNotification(String title, String content) { NotificationCompat.Builder builder = null; if (Build.VERSION.SDK_INT > = Build.VERSION_CODES.O) { builder = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID); } else { builder = new NotificationCompat.Builder(getApplicationContext()); builder.setPriority(PRIORITY_DEFAULT); } //标题 builder.setContentTitle(title); //文本内容 builder.setContentText(content); //小图标 builder.setSmallIcon(R.mipmap.ic_launcher); //设置点击信息后自动清除通知 builder.setAutoCancel(true); Intent clickIntent = new Intent(); //点击通知之后要发送的广播 int id = (int) (System.currentTimeMillis() / 1000); clickIntent.addCategory(context.getPackageName()); clickIntent.setAction(JPushInterface.ACTION_NOTIFICATION_OPENED); clickIntent.putExtra(JPushInterface.EXTRA_EXTRA, EXTRA_EXTRA); PendingIntent contentIntent = PendingIntent.getBroadcast(context, id, clickIntent, PendingIntent.FLAG_UPDATE_CURRENT); builder.setContentIntent(contentIntent); return builder; }/** * 发送通知 */ public void sendNotification(int notifyId, String title, String content) { NotificationCompat.Builder builder = getNotification(title, content); getManager().notify(notifyId, builder.build()); }}