NotificationHook.java

package me.gitai.phuckqq.xposed;

import android.app.Notification;
import android.app.NotificationManager;
import android.support.v4.app.NotificationCompat;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;

import me.gitai.library.utils.L;

import android.app.AndroidAppHelper;
import android.app.Application;
import android.util.Log;

import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.UserHandle;

import me.gitai.phuckqq.BuildConfig;

import android.content.Context;

import android.graphics.Bitmap;

import java.util.Iterator;

import de.robv.android.xposed.IXposedHookLoadPackage;
import de.robv.android.xposed.XC_MethodReplacement;
import de.robv.android.xposed.XSharedPreferences;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.XposedHelpers;
import de.robv.android.xposed.callbacks.XC_LoadPackage;

import me.gitai.phuckqq.util.StringUtils;
import me.gitai.phuckqq.data.QQNotification;

import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
/**
 * Created by gitai on 16-4-10.
 */
public class NotificationHook implements IXposedHookLoadPackage {
    private List<QQNotification> mMessages = new ArrayList();

	private void notificationHook(XC_LoadPackage.LoadPackageParam lpparam) throws ClassNotFoundException,NoSuchFieldException,IllegalAccessException{
		String className = "android.app.NotificationManager"; //类名
        	String methodName = "notify";  //方法名

        	XposedHelpers.findAndHookMethod(className, lpparam.classLoader, methodName,
                int.class, Notification.class,
                new XC_MethodReplacement() { //替换
                    @Override
                    protected Object replaceHookedMethod(MethodHookParam param) throws Throwable {
                        int id = (int)param.args[0]; //操作id，可用于后期删除，更新等
                        QQNotification notification = new QQNotification(id, (Notification)param.args[1]);//构造自定义通知对象

                        mMessages.add(notification);//插入全局数组

                        HashSet<String> contacts = new HashSet();//统计来源用户，Set不可重复特性，HashSet比较快～
                        StringBuilder messagesBuilder = new StringBuilder();//构造通知正文
                        List<QQNotification> messages = new ArrayList();//因为删除太麻烦，直接构造新数组替换
                        for (int i = (mMessages.size()>notification.getLinesLimit())?(mMessages.size()-notification.getLinesLimit()):0; i < mMessages.size(); i++) {//从-10开始枚举
                            QQNotification n = mMessages.get(i);
                            messages.add(n);//填入新数组
                            contacts.add(n.getContact());//填入联系人，用于计数
                            messagesBuilder.append(n.getSummary());//获取摘要，格式 NickName：Body
                            if (i < mMessages.size() - 1) {
                                messagesBuilder.append("\n");
                            }
                        }
                        mMessages = messages;

                        Context context = (Context)XposedHelpers.getObjectField(param.thisObject, "mContext");

                        String summary = String.format("%d messages from %d contacts", mMessages.size(), contacts.size());

                        NotificationCompat.Builder builder = notification.getBuilder(context) //构造通知对象
                            .setStyle(new NotificationCompat.BigTextStyle()
                                .setBigContentTitle(notification.getContact())
                                .setSummaryText(summary)
                                .bigText(messagesBuilder.toString()));

                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN){
                            builder.setPriority(Notification.PRIORITY_MAX);
                        }

                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
                            builder.setCategory(Notification.CATEGORY_ALARM);
                        }

                        ((NotificationManager)param.thisObject).notify(null, notification.number, builder.build());
                        //((NotificationManager)param.thisObject).notify(null, notification.number + 1, notification.getNotification()); //启用原通知
                        return null;
                    }
                });
	}

    @Override
    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam) throws Throwable {
        Application app = AndroidAppHelper.currentApplication();

        //初始化各种工具库
        L.setLogcatEnable(app, true); //启用
        L.setLogToFileEnable(true, app, "/sdcard/phuckqq/logs"); //输出外部文件
        L.setXposedMode(true); //启用xposed输出

        //L.d(lpparam.packageName);
        if (lpparam.packageName.startsWith("com.tencent.qq")) { //所有（大概 的QQ的包名
            L.d("initializing...");

            //设备信息，习惯性输出
            L.i("Phone manufacturer: %s", Build.MANUFACTURER);
            L.i("Phone model: %s", Build.MODEL);
            L.i("Android version: %s", Build.VERSION.RELEASE);
            L.i("Xposed bridge version: %d", XposedBridge.XPOSED_BRIDGE_VERSION);
            L.i("Module Version: %s (%d)", BuildConfig.VERSION_NAME, BuildConfig.VERSION_CODE);

            try {
                notificationHook(lpparam);
            } catch (Throwable e) {
                L.d("Failed to hook NotificationManager of QQ" + "\n" + Log.getStackTraceString(e));
                throw e;
            }
            L.d("initialization complete!");
        }
    }
}

QQNotification.java

package me.gitai.phuckqq.data;

import de.robv.android.xposed.XposedHelpers;
import android.graphics.Bitmap;
import android.app.Notification;
import me.gitai.phuckqq.util.StringUtils;
import android.support.v4.app.NotificationCompat;
import android.content.Context;

/**
 * Created by gitai on 16-4-11.
 */
public class QQNotification {
	public Notification mNotification;
	public String title,titleBig,text,subText,infoText,summaryText,tickerText;
	public int number,mId,icon,progress,progressMax;
	public Bitmap largeIcon,largeIconBig,picture;
	public boolean progressIndeterminate,showChronometer,showWhen;
	public CharSequence[] textLines;

	public String mGroupName,mNickName,mNickNameShort,mMessageText = "";

	public QQNotification(int id, Notification notification) {
		this.mId = id;
		this.number = notification.number;

		this.mNotification = notification;

		this.tickerText = (String)notification.tickerText;

		this.title = (String)notification.extras.getCharSequence(Notification.EXTRA_TITLE); //Group/User Name
		this.titleBig = (String)notification.extras.getCharSequence(Notification.EXTRA_TITLE_BIG);
		this.text = (String)notification.extras.getCharSequence(Notification.EXTRA_TEXT); //NickName: MessageBody
		this.subText = (String)notification.extras.getCharSequence(Notification.EXTRA_SUB_TEXT);
		this.infoText = (String)notification.extras.getCharSequence(Notification.EXTRA_INFO_TEXT);
		this.summaryText = (String)notification.extras.getCharSequence(Notification.EXTRA_SUMMARY_TEXT);
		this.icon = notification.extras.getInt(Notification.EXTRA_SMALL_ICON); //Application Icon for Notification
		this.progress = notification.extras.getInt(Notification.EXTRA_PROGRESS);
		this.progressMax = notification.extras.getInt(Notification.EXTRA_PROGRESS_MAX);
		this.largeIcon = notification.largeIcon; //Group/User Avatar
		//this.notification.extras.getParcelable(Notification.EXTRA_LARGE_ICON);
		this.largeIconBig = notification.extras.getParcelable(Notification.EXTRA_LARGE_ICON_BIG);
		this.picture = notification.extras.getParcelable(Notification.EXTRA_PICTURE);
		this.progressIndeterminate = notification.extras.getBoolean(Notification.EXTRA_PROGRESS_INDETERMINATE);
		this.showChronometer = notification.extras.getBoolean(Notification.EXTRA_SHOW_CHRONOMETER);
		this.showWhen = notification.extras.getBoolean(Notification.EXTRA_SHOW_WHEN);
		this.textLines = notification.extras.getCharSequenceArray(Notification.EXTRA_TEXT_LINES);

		this.mGroupName = title;
		String[] msg = text.split(": ");
		if (msg.length > 1) { //拆通知～
			//群组类
			mNickName = msg[0];
			for (int i = 1; i < msg.length; i++) {
				mMessageText = mMessageText + msg[i];
			}
		}else{
			//私聊会话
			this.mNickName = this.mGroupName;
			this.mGroupName = null;
			this.mMessageText = text;
		}
    }

    public int getLinesLimit(){
    		//输出限制，用最后一个对象计算
    		int count = 10;
		try{count = Integer.parseInt(infoText);}catch(NumberFormatException ex){}
		return (count > 10)?10:count;
    }

    public Notification getNotification() {
		return mNotification;
    }

    public String getContact(){
    		if (!StringUtils.isEmpty(mGroupName))return mGroupName;
    		return mNickName;
    }

    public String getNickName(){
    		return mNickName;
    }

    public String getGroupName(){
    		return mGroupName;
    }

    public String getMessageText(){
    		return mMessageText;
    }

    public String getSummary(){
    		if (mNickName.length() <= 5) return mNickName + ":" + mMessageText; //昵称直接输出
    		if (!StringUtils.isEmpty(mNickNameShort)) return mNickNameShort + ":" + mMessageText; //昵称摘要输出
    		return (mNickNameShort = mNickName.substring(0, 3) + "...") + ":" + mMessageText; //
    }

    public NotificationCompat.Builder getBuilder(Context context){
    		return new NotificationCompat.Builder(context)
            .setSmallIcon(mNotification.icon)
            .setWhen(mNotification.when)
            .setLargeIcon(largeIcon)
            .setAutoCancel(true)
            //.setContent(notification.contentView)
            .setContentTitle(getContact())
            .setContentText(getSummary())
            .setContentInfo(infoText)
            .setTicker(tickerText)
            .setContentIntent(mNotification.contentIntent);
    }

    @Override
    public String toString() { //给其他方法调用
    		return getSummary();
    }
}