Android最初原生是没有角标的，各大手机厂商推出了角标，适配也是相对麻烦，需要去适配各家，这里做了整理及使用方法

先把工具类贴出来

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.AsyncQueryHandler;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.NotificationCompat;
import android.text.TextUtils;
import android.util.Log;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

import cn.com.goldwind.eis.R;
import cn.com.goldwind.eis.ui.activity.MainActivity;

/**
 * 应用角标工具类
 */
public class AppShortCutUtil {
    private static int notificationId = 0;

    public static boolean setCount(final int count, final Context context) {
        if (count >= 0 && context != null) {
            Log.d("BRAND", Build.BRAND);
            switch (Build.BRAND.toLowerCase()) {
                case "xiaomi":
                    new Handler().postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            setNotificationBadge(count, context);
                        }
                    }, 3000);
                    return true;
                case "huawei":
                    return setHuaweiBadge(count, context);
                case "honor":
                    return setHonorBadge(count, context);
                case "samsung":
                    return setSamsungBadge(count, context);
                case "oppo":
                    return setOPPOBadge(count, context) || setOPPOBadge2(count, context);
                case "vivo":
                    return setVivoBadge(count, context);
                case "lenovo":
                    return setZukBadge(count, context);
                case "htc":
                    return setHTCBadge(count, context);
                case "sony":
                    return setSonyBadge(count, context);
                default:
                    return setNotificationBadge(count, context);
            }
        } else {
            return false;
        }
    }

    public static boolean setNotificationBadge(int count, Context context) {
        NotificationManager notificationManager = (NotificationManager) context.getSystemService
                (Context.NOTIFICATION_SERVICE);
        if (notificationManager == null) {
            return false;
        }
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            // 8.0之后添加角标需要NotificationChannel
            NotificationChannel channel = new NotificationChannel("badge", "badge",
                    NotificationManager.IMPORTANCE_DEFAULT);
            channel.setShowBadge(true);
            notificationManager.createNotificationChannel(channel);
        }
        Intent intent = new Intent(context, MainActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
        Notification notification = new NotificationCompat.Builder(context, "badge")
                .setContentTitle(context.getResources().getString(R.string.application_angle))
                .setContentText(context.getResources().getString(R.string.you_have) + count + context.getResources().getString(R.string.unread_message))
                .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap
                        .ic_launcher))
                .setSmallIcon(R.mipmap.ic_launcher)
                .setAutoCancel(true)
                .setContentIntent(pendingIntent)
                .setChannelId("badge")
                .setNumber(count)
                .setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL).build();
        // 小米
        if (Build.BRAND.equalsIgnoreCase("xiaomi")) {
            setXiaomiBadge(count, notification);
        }
        notificationManager.notify(notificationId++, notification);
        return true;
    }

    private static void setXiaomiBadge(int count, Notification notification) {
        try {
            Field field = notification.getClass().getDeclaredField("extraNotification");
            Object extraNotification = field.get(notification);
            Method method = extraNotification.getClass().getDeclaredMethod("setMessageCount", int
                    .class);
            method.invoke(extraNotification, count);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static boolean setHonorBadge(int count, Context context) {
        try {
            String launchClassName = getLauncherClassName(context);
            if (TextUtils.isEmpty(launchClassName)) {
                return false;
            }
            Bundle bundle = new Bundle();
            bundle.putString("package", context.getPackageName());
            bundle.putString("class", launchClassName);
            bundle.putInt("badgenumber", count);
            context.getContentResolver().call(Uri.parse("content://com.huawei.android.launcher" +
                    ".settings/badge/"), "change_badge", null, bundle);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    private static boolean setHuaweiBadge(int count, Context context) {
        try {
            String launchClassName = getLauncherClassName(context);
            if (TextUtils.isEmpty(launchClassName)) {
                return false;
            }
            Bundle bundle = new Bundle();
            bundle.putString("package", context.getPackageName());
            bundle.putString("class", launchClassName);
            bundle.putInt("badgenumber", count);
            context.getContentResolver().call(Uri.parse("content://com.huawei.android.launcher" + ".settings/badge/"), "change_badge", null, bundle);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    private static boolean setSamsungBadge(int count, Context context) {
        try {
            String launcherClassName = getLauncherClassName(context);
            if (TextUtils.isEmpty(launcherClassName)) {
                return false;
            }
            Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
            intent.putExtra("badge_count", count);
            intent.putExtra("badge_count_package_name", context.getPackageName());
            intent.putExtra("badge_count_class_name", launcherClassName);
            context.sendBroadcast(intent);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    @Deprecated
    private static boolean setOPPOBadge(int count, Context context) {
        try {
            Bundle extras = new Bundle();
            extras.putInt("app_badge_count", count);
            context.getContentResolver().call(Uri.parse("content://com.android.badge/badge"),
                    "setAppBadgeCount", String.valueOf(count), extras);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    @Deprecated
    private static boolean setOPPOBadge2(int count, Context context) {
        try {
            Intent intent = new Intent("com.oppo.unsettledevent");
            intent.putExtra("packageName", context.getPackageName());
            intent.putExtra("number", count);
            intent.putExtra("upgradeNumber", count);
            PackageManager packageManager = context.getPackageManager();
            List<ResolveInfo> receivers = packageManager.queryBroadcastReceivers(intent, 0);
            if (receivers != null && receivers.size() > 0) {
                context.sendBroadcast(intent);
            } else {
                Bundle extras = new Bundle();
                extras.putInt("app_badge_count", count);
                context.getContentResolver().call(Uri.parse("content://com.android.badge/badge"),
                        "setAppBadgeCount", null, extras);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    @Deprecated
    private static boolean setVivoBadge(int count, Context context) {
        try {
            String launcherClassName = getLauncherClassName(context);
            if (TextUtils.isEmpty(launcherClassName)) {
                return false;
            }
            Intent intent = new Intent("launcher.action.CHANGE_APPLICATION_NOTIFICATION_NUM");
            intent.putExtra("packageName", context.getPackageName());
            intent.putExtra("className", launcherClassName);
            intent.putExtra("notificationNum", count);
            context.sendBroadcast(intent);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    private static boolean setZukBadge(int count, Context context) {
        try {
            Bundle extra = new Bundle();
            ArrayList<String> ids = new ArrayList<>();
            // 以列表形式传递快捷方式id，可以添加多个快捷方式id
//        ids.add("custom_id_1");
//        ids.add("custom_id_2");
            extra.putStringArrayList("app_shortcut_custom_id", ids);
            extra.putInt("app_badge_count", count);
            Uri contentUri = Uri.parse("content://com.android.badge/badge");
            Bundle bundle = context.getContentResolver().call(contentUri, "setAppBadgeCount", null,
                    extra);
            return bundle != null;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    private static boolean setHTCBadge(int count, Context context) {
        try {
            ComponentName launcherComponentName = getLauncherComponentName(context);
            if (launcherComponentName == null) {
                return false;
            }

            Intent intent1 = new Intent("com.htc.launcher.action.SET_NOTIFICATION");
            intent1.putExtra("com.htc.launcher.extra.COMPONENT", launcherComponentName
                    .flattenToShortString());
            intent1.putExtra("com.htc.launcher.extra.COUNT", count);
            context.sendBroadcast(intent1);

            Intent intent2 = new Intent("com.htc.launcher.action.UPDATE_SHORTCUT");
            intent2.putExtra("packagename", launcherComponentName.getPackageName());
            intent2.putExtra("count", count);
            context.sendBroadcast(intent2);

            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    private static boolean setSonyBadge(int count, Context context) {
        String launcherClassName = getLauncherClassName(context);
        if (TextUtils.isEmpty(launcherClassName)) {
            return false;
        }
        try {
            //官方给出方法
            ContentValues contentValues = new ContentValues();
            contentValues.put("badge_count", count);
            contentValues.put("package_name", context.getPackageName());
            contentValues.put("activity_name", launcherClassName);
            SonyAsyncQueryHandler asyncQueryHandler = new SonyAsyncQueryHandler(context
                    .getContentResolver());
            asyncQueryHandler.startInsert(0, null, Uri.parse("content://com.sonymobile.home" +
                    ".resourceprovider/badge"), contentValues);
            return true;
        } catch (Exception e) {
            try {
                //网上大部分使用方法
                Intent intent = new Intent("com.sonyericsson.home.action.UPDATE_BADGE");
                intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", count > 0);
                intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME",
                        launcherClassName);
                intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", String
                        .valueOf(count));
                intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", context
                        .getPackageName());
                context.sendBroadcast(intent);
                return true;
            } catch (Exception e1) {
                e1.printStackTrace();
                return false;
            }
        }
    }

    private static String getLauncherClassName(Context context) {
        ComponentName launchComponent = getLauncherComponentName(context);
        if (launchComponent == null) {
            return "";
        } else {
            return launchComponent.getClassName();
        }
    }

    private static ComponentName getLauncherComponentName(Context context) {
        Intent launchIntent = context.getPackageManager().getLaunchIntentForPackage(context
                .getPackageName());
        if (launchIntent != null) {
            return launchIntent.getComponent();
        } else {
            return null;
        }
    }

    static class SonyAsyncQueryHandler extends AsyncQueryHandler {

        SonyAsyncQueryHandler(ContentResolver cr) {
            super(cr);
        }
    }
}

这里各个方法不用太在意，都是各大厂商提供的角标设置方法

下面贴出使用方法

例如我这里接入的是极光推送，在对应的广播类中进行显示操作，我这里的逻辑是每次接受到广播角标数量+1，在打开MainActivity的时候进行清零

1.首先，申请权限 AndroidManifest.xml

    <!-- 华为 -->
    <uses-permission android:name="com.huawei.android.launcher.permission.CHANGE_BADGE"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <!-- 三星 -->
    <!--<uses-permission android:name="com.sec.android.provider.badge.permission.READ"/>-->
    <!--<uses-permission android:name="com.sec.android.provider.badge.permission.WRITE"/>-->
    <!-- OPPO -->
    <uses-permission android:name="com.oppo.launcher.permission.READ_SETTINGS"/>
    <uses-permission android:name="com.oppo.launcher.permission.WRITE_SETTINGS"/>
    <!-- 联想ZUK -->
    <uses-permission android:name="android.permission.READ_APP_BADGE"/>
    <!-- HTC -->
    <uses-permission android:name="com.htc.launcher.permission.READ_SETTINGS"/>
    <uses-permission android:name="com.htc.launcher.permission.UPDATE_SHORTCUT"/>

2.JPushMessageReceiver继承类

    @Override
    public void onNotifyMessageArrived(Context context, NotificationMessage message) {
        Log.e(TAG, "[onNotifyMessageArrived] " + message);
        count = count + 1;
        AppShortCutUtil.setCount(count, EISApp.appContext);
        Log.d("-=-", "===" + count);
    }

3.最后MainActivity

    @Override
    protected void onResume() {
        super.onResume();
        if (0 != PushMessageReceiver.count) {
            //角标清空
            PushMessageReceiver.count = 0;
            AppShortCutUtil.setCount(PushMessageReceiver.count, MainActivity.this);
        }
    }

ok，到这里就大功告成了，现在就可以去发一条推送试试了