public class NotificationUtils {
private NotificationManager manager;
public static final String id = "channel_1";
public static final String name = "channel_name_1";
private Notification.Builder builder;
private NotificationCompat.Builder builder1;
//单例对象
private static NotificationUtils instance;
public NotificationUtils(){
}
public static NotificationUtils getInstance() {
if (instance == null) {
synchronized (NotificationUtils.class) {
if (instance == null) {
instance = new NotificationUtils();
}
}
}
return instance;
}
@SuppressLint("NewApi")
public void createNotificationChannel(Context context){
NotificationChannel channel = new NotificationChannel(id, name, NotificationManager.IMPORTANCE_HIGH);
getManager(context).createNotificationChannel(channel);
}
private NotificationManager getManager(Context context){
if (manager == null){
manager = (NotificationManager) context.getSystemService(NOTIFICATION_SERVICE);
}
return manager;
}
@SuppressLint("NewApi")
public Notification.Builder getChannelNotification(Context context,RemoteViews mRemoteViews){
Notification.Builder builder=new Notification.Builder(context,id);
Resources res = context.getResources();
Bitmap bmp= BitmapFactory.decodeResource(res, R.drawable.ic_icon);
builder.setLargeIcon(bmp);
builder.setSmallIcon(R.drawable.ic_icon);
builder.setCustomContentView(mRemoteViews);
builder.setCustomBigContentView(mRemoteViews);
builder.setAutoCancel(false);
return builder;
}
public NotificationCompat.Builder getNotification_25(Context context,RemoteViews mRemoteViews){
final NotificationCompat.Builder builder=new NotificationCompat.Builder(context);
builder.setSmallIcon(R.drawable.ic_icon);
Resources res = context.getResources();
Bitmap bmp= BitmapFactory.decodeResource(res, R.drawable.ic_icon);
builder.setLargeIcon(bmp);
builder.setCustomContentView(mRemoteViews);
builder.setCustomBigContentView(mRemoteViews);
builder.setAutoCancel(false);
return builder;
}
public void sendNotification(final PlayingMusicBeens playingMusicBeens, final int num, final Context context){
Glide.with(context)
.asBitmap()
.load(playingMusicBeens.getPic())
.into(new SimpleTarget() {
@Override
public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition transition) {
Intent intent = new Intent(context, MainAcvity.class);//将要跳转的界面
PendingIntent intentPend = PendingIntent.getActivity(context, num, intent, PendingIntent.FLAG_CANCEL_CURRENT);
final RemoteViews mRemoteViews = new RemoteViews(context.getPackageName(), R.layout.notification_play);
mRemoteViews.setTextViewText(R.id.tv_name, playingMusicBeens.getMusicname());
mRemoteViews.setTextViewText(R.id.tv_name, playingMusicBeens.getMusicname()+"-"+playingMusicBeens.getMusic_singer());
mRemoteViews.setImageViewResource(R.id.ib_last,R.drawable.ic_lrc_last);
if(PlayController.getInstance(context).get_state()==0){
mRemoteViews.setImageViewResource(R.id.ib_play,R.drawable.ic_lrc_stop);
}else {
mRemoteViews.setImageViewResource(R.id.ib_play,R.drawable.ic_lrc_play);
}
mRemoteViews.setImageViewResource(R.id.ib_next,R.drawable.ic_lrc_next);
mRemoteViews.setImageViewBitmap(R.id.iv_img,resource);
Intent intentLast = new Intent("last");
PendingIntent pIntentLast = PendingIntent.getBroadcast(context.getApplicationContext(), 0,
intentLast, 0);
mRemoteViews.setOnClickPendingIntent(R.id.ib_last,pIntentLast);
Intent intentPause = new Intent("play");
PendingIntent pIntentPause = PendingIntent.getBroadcast(context.getApplicationContext(), 0,
intentPause, 0);
mRemoteViews.setOnClickPendingIntent(R.id.ib_play,pIntentPause);
Intent intentNext = new Intent("next");
PendingIntent pIntentNext = PendingIntent.getBroadcast(context.getApplicationContext(), 0,
intentNext, 0);
mRemoteViews.setOnClickPendingIntent(R.id.ib_next,pIntentNext);
if (Build.VERSION.SDK_INT >= 26) {
if(builder!=null){
builder.setCustomContentView(mRemoteViews);
}else{
createNotificationChannel(context);
builder = getChannelNotification(context,mRemoteViews);
if(!isAppForeground(context)){
builder.setContentIntent(intentPend);
}
}
getManager(context).notify("notification",111, builder.build());
} else {
if(builder1!=null){
builder1.setCustomContentView(mRemoteViews);
}else{
builder1 = getNotification_25(context,mRemoteViews);
if(!isAppForeground(context)){
builder1.setContentIntent(intentPend);
}
}
getManager(context).notify("notification",111, builder1.build());
}
}
});
}
//判断通知权限是否开启
@SuppressLint("NewApi")
public boolean isNotificationEnabled(Context context) {
AppOpsManager mAppOps =
(AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
ApplicationInfo appInfo = context.getApplicationInfo();
String pkg = context.getApplicationContext().getPackageName();
int uid = appInfo.uid;
Class appOpsClass = null;
try {
appOpsClass = Class.forName(AppOpsManager.class.getName());
Method checkOpNoThrowMethod =
appOpsClass.getMethod("checkOpNoThrow",
Integer.TYPE, Integer.TYPE, String.class);
Field opPostNotificationValue = appOpsClass.getDeclaredField("OP_POST_NOTIFICATION");
int value = (Integer) opPostNotificationValue.get(Integer.class);
return ((Integer) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg) ==
AppOpsManager.MODE_ALLOWED);
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
//判断当前app是否在前台
private static boolean isAppForeground(Context context) {
ActivityManager activityManager =
(ActivityManager)context.getSystemService(Service.ACTIVITY_SERVICE);
List runningAppProcessInfoList =
activityManager.getRunningAppProcesses();
if (runningAppProcessInfoList == null) {
Log.d("isAppForeground","runningAppProcessInfoList is null!");
return false;
}
for(ActivityManager.RunningAppProcessInfo processInfo : runningAppProcessInfoList) {
if (processInfo.processName.equals(context.getPackageName())
&&(processInfo.importance ==
ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND)) {
return true;
}
}
return false;
}
}
使用
NotificationUtils.getInstance().sendNotification(playingMusicBeens,1,context);