Notification实现通知栏显示上传下载进度条
程序员文章站
2022-06-07 19:33:10
...
首先上效果图：
一共是两种效果 第一种是利用系统自带的组件实现的 第二种是利用自定义的View
首先附上工具类代码：
package com.cn21.oosdemo;
import android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.ContextWrapper;
import android.graphics.Color;
import android.net.Uri;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v4.app.NotificationCompat;
import android.widget.RemoteViews;
import static android.support.v4.app.NotificationCompat.PRIORITY_DEFAULT;
import static android.support.v4.app.NotificationCompat.VISIBILITY_SECRET;
/**
* <pre>
* @author XuPF
* desc : 通知栏工具类
* revise:
* </pre>
*/
public class NotificationUtils extends ContextWrapper {
public static final String CHANNEL_ID = "default";
private static final String CHANNEL_NAME = "Default_Channel";
private NotificationManager mManager;
private int[] flags;
public NotificationUtils(Context base) {
super(base);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
//android 8.0以上需要特殊处理，也就是targetSDKVersion为26以上
createNotificationChannel();
}
}
@TargetApi(Build.VERSION_CODES.O)
private void createNotificationChannel() {
//第一个参数：channel_id
//第二个参数：channel_name
//第三个参数：设置通知重要性级别
//注意：该级别必须要在 NotificationChannel 的构造函数中指定，总共要五个级别；
//范围是从 NotificationManager.IMPORTANCE_NONE(0) ~ NotificationManager.IMPORTANCE_HIGH(4)
NotificationChannel channel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME,
NotificationManager.IMPORTANCE_LOW);
channel.canBypassDnd();//是否绕过请勿打扰模式
channel.enableLights(true);//是否在桌面icon右上角展示小红点
channel.setLockscreenVisibility(VISIBILITY_SECRET);//锁屏显示通知
channel.setLightColor(Color.RED);//闪关灯的灯光颜色
channel.canShowBadge();//桌面launcher的消息角标
//channel.enableVibration(false);//是否允许震动
channel.getAudioAttributes();//获取系统通知响铃声音的配置
channel.getGroup();//获取通知取到组
channel.setBypassDnd(true);//设置可绕过 请勿打扰模式
channel.setSound(null, null);
//channel.setVibrationPattern(new long[]{100, 100, 200});//设置震动模式
channel.shouldShowLights();//是否会有灯光
channel.setShowBadge(true); //是否在久按桌面图标时显示此渠道的通知
getManager().createNotificationChannel(channel);
}
/**
* 获取创建一个NotificationManager的对象
* @return NotificationManager对象
*/
public NotificationManager getManager() {
if (mManager == null) {
mManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
}
return mManager;
}
/**
* 清空所有的通知
*/
public void clearNotification(){
getManager().cancelAll();
}
/**
* 获取Notification
* @param title title
* @param content content
*/
public Notification getNotification(String title, String content , int icon){
Notification build;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
//android 8.0以上需要特殊处理，也就是targetSDKVersion为26以上
//通知用到NotificationCompat()这个V4库中的方法。但是在实际使用时发现书上的代码已经过时并且Android8.0已经不支持这种写法
Notification.Builder builder = getChannelNotification(title, content, icon);
build = builder.build();
} else {
NotificationCompat.Builder builder = getNotificationCompat(title, content, icon);
build = builder.build();
}
if (flags!=null && flags.length>0){
for (int a=0 ; a<flags.length ; a++){
build.flags |= flags[a];
}
}
return build;
}
/**
* 建议使用这个发送通知
* 调用该方法可以发送通知
* @param notifyId notifyId
* @param title title
* @param content content
*/
public void sendNotification(int notifyId, String title, String content , int icon) {
Notification build;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
//android 8.0以上需要特殊处理，也就是targetSDKVersion为26以上
//通知用到NotificationCompat()这个V4库中的方法。但是在实际使用时发现书上的代码已经过时并且Android8.0已经不支持这种写法
Notification.Builder builder = getChannelNotification(title, content, icon);
build = builder.build();
} else {
NotificationCompat.Builder builder = getNotificationCompat(title, content, icon);
build = builder.build();
}
if (flags!=null && flags.length>0){
for (int a=0 ; a<flags.length ; a++){
build.flags |= flags[a];
}
}
getManager().notify(notifyId, build);
}
/**
* 调用该方法可以发送通知
* @param notifyId notifyId
* @param title title
* @param content content
*/
public void sendNotificationCompat(int notifyId, String title, String content , int icon) {
NotificationCompat.Builder builder = getNotificationCompat(title, content, icon);
Notification build = builder.build();
if (flags!=null && flags.length>0){
for (int a=0 ; a<flags.length ; a++){
build.flags |= flags[a];
}
}
getManager().notify(notifyId, build);
}
private NotificationCompat.Builder getNotificationCompat(String title, String content, int icon) {
NotificationCompat.Builder builder;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
builder = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID);
} else {
//注意用下面这个方法，在8.0以上无法出现通知栏。8.0之前是正常的。这里需要增强判断逻辑
builder = new NotificationCompat.Builder(getApplicationContext());
builder.setPriority(PRIORITY_DEFAULT);
}
builder.setContentTitle(title);
builder.setContentText(content);
builder.setSmallIcon(icon);
builder.setPriority(priority);
builder.setOnlyAlertOnce(onlyAlertOnce);
builder.setOngoing(ongoing);
if (remoteViews!=null){
builder.setContent(remoteViews);
}
if (intent!=null){
builder.setContentIntent(intent);
}
if (ticker!=null && ticker.length()>0){
builder.setTicker(ticker);
}
if (when!=0){
builder.setWhen(when);
}
if (sound!=null){
builder.setSound(sound);
}
if (defaults!=0){
builder.setDefaults(defaults);
}
//点击自动删除通知
builder.setAutoCancel(true);
return builder;
}
@RequiresApi(api = Build.VERSION_CODES.O)
private Notification.Builder getChannelNotification(String title, String content, int icon){
Notification.Builder builder = new Notification.Builder(getApplicationContext(), CHANNEL_ID);
Notification.Builder notificationBuilder = builder
//设置标题
.setContentTitle(title)
//消息内容
.setContentText(content)
//设置通知的图标
.setSmallIcon(icon)
//让通知左右滑的时候是否可以取消通知
.setOngoing(ongoing)
//设置优先级
.setPriority(priority)
//是否提示一次.true - 如果Notification已经存在状态栏即使在调用notify函数也不会更新
.setOnlyAlertOnce(onlyAlertOnce)
.setAutoCancel(true);
if (remoteViews!=null){
//设置自定义view通知栏
notificationBuilder.setContent(remoteViews);
}
if (intent!=null){
notificationBuilder.setContentIntent(intent);
}
if (ticker!=null && ticker.length()>0){
//设置状态栏的标题
notificationBuilder.setTicker(ticker);
}
if (when!=0){
//设置通知时间，默认为系统发出通知的时间，通常不用设置
notificationBuilder.setWhen(when);
}
if (sound!=null){
//设置sound
notificationBuilder.setSound(sound);
}
if (defaults!=0){
//设置默认的提示音
notificationBuilder.setDefaults(defaults);
}
if (pattern!=null){
//自定义震动效果
notificationBuilder.setVibrate(pattern);
}
return notificationBuilder;
}
private boolean ongoing = false;
private RemoteViews remoteViews = null;
private PendingIntent intent = null;
private String ticker = "";
private int priority = Notification.PRIORITY_DEFAULT;
private boolean onlyAlertOnce = false;
private long when = 0;
private Uri sound = null;
private int defaults = 0;
private long[] pattern = null;
/**
* 让通知左右滑的时候是否可以取消通知
* @param ongoing 是否可以取消通知
* @return
*/
public NotificationUtils setOngoing(boolean ongoing){
this.ongoing = ongoing;
return this;
}
/**
* 设置自定义view通知栏布局
* @param remoteViews view
* @return
*/
public NotificationUtils setContent(RemoteViews remoteViews){
this.remoteViews = remoteViews;
return this;
}
/**
* 设置内容点击
* @param intent intent
* @return
*/
public NotificationUtils setContentIntent(PendingIntent intent){
this.intent = intent;
return this;
}
/**
* 设置状态栏的标题
* @param ticker 状态栏的标题
* @return
*/
public NotificationUtils setTicker(String ticker){
this.ticker = ticker;
return this;
}
/**
* 设置优先级
* 注意：
* Android 8.0以及上，在 NotificationChannel 的构造函数中指定，总共要五个级别；
* Android 7.1（API 25）及以下的设备，还得调用NotificationCompat 的 setPriority方法来设置
*
* @param priority 优先级，默认是Notification.PRIORITY_DEFAULT
* @return
*/
public NotificationUtils setPriority(int priority){
this.priority = priority;
return this;
}
/**
* 是否提示一次.true - 如果Notification已经存在状态栏即使在调用notify函数也不会更新
* @param onlyAlertOnce 是否只提示一次，默认是false
* @return
*/
public NotificationUtils setOnlyAlertOnce(boolean onlyAlertOnce){
this.onlyAlertOnce = onlyAlertOnce;
return this;
}
/**
* 设置通知时间，默认为系统发出通知的时间，通常不用设置
* @param when when
* @return
*/
public NotificationUtils setWhen(long when){
this.when = when;
return this;
}
/**
* 设置sound
* @param sound sound
* @return
*/
public NotificationUtils setSound(Uri sound){
this.sound = sound;
return this;
}
/**
* 设置默认的提示音
* @param defaults defaults
* @return
*/
public NotificationUtils setDefaults(int defaults){
this.defaults = defaults;
return this;
}
/**
* 自定义震动效果
* @param pattern pattern
* @return
*/
public NotificationUtils setVibrate(long[] pattern){
this.pattern = pattern;
return this;
}
/**
* 设置flag标签
* @param flags flags
* @return
*/
public NotificationUtils setFlags(int... flags){
this.flags = flags;
return this;
}
}
自定义View调用代码
protected void setNotification(int progress) {
if (this==null){
return;
}
Intent intent = new Intent();
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
RemoteViews remoteViews = new RemoteViews(this.getPackageName(), R.layout.remote_notification_view);
remoteViews.setTextViewText(R.id.tvTitle, "正在下载：");
remoteViews.setProgressBar(R.id.pb, 100, progress, false);
NotificationUtils notificationUtils = new NotificationUtils(this);
NotificationManager manager = notificationUtils.getManager();
Notification notification = notificationUtils.setContentIntent(pendingIntent)
.setContent(remoteViews)
.setFlags(Notification.FLAG_AUTO_CANCEL)
.setOnlyAlertOnce(true)
.getNotification("来了一条消息", "下载apk", R.mipmap.ic_launcher);
//下载成功或者失败
if (progress == 100 || progress == -1) {
notificationUtils.clearNotification();
} else {
manager.notify(1, notification);
}
}
<?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="wrap_content"
android:layout_gravity="center">
<ImageView
android:src="@mipmap/tyyp"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginLeft="8dp"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp">
<TextView
android:id="@+id/tvTitle"
android:text="文本"
android:textSize="14sp"
android:textStyle="normal"
android:textColor="@android:color/black"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ProgressBar
android:id="@+id/pb"
android:layout_marginTop="5dp"
style="@android:style/Widget.ProgressBar.Horizontal"
android:progressDrawable="@drawable/progress_bar_bg"
android:indeterminateTintMode="src_atop"
android:indeterminateTint="@color/main_top_indicator_color"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
有一个需要注意的地方就是setSmallIcon是没有效果的 会一直默认使用App图片 所以可以先设置setSmallIcon然后设置setLargeIcon
Bitmap abcd = BitmapFactory.decodeResource(getResources(), R.mipmap.tyyp);
mBuilder.setChannelId(CHANNEL_ID)
.setContentTitle("正在下载："+progress+"%")
.setProgress(100,progress,false)
.setSmallIcon(R.mipmap.tyyp)
.setLargeIcon(abcd)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setWhen(System.currentTimeMillis())
.build();
下一篇： 你就是一个人在战斗