Android系统 应用图标显示未读消息数(BadgeNumber) 桌面app图标的角标显示

参考:
http://dev.xiaomi.com/doc/p=3904/index.html
http://my.oschina.net/ososchina/blog/352286?p=1#comments
https://github.com/leolin310148/ShortcutBadger
http://www.voidcn.com/blog/kongbaidepao/article/p-62251.html
http://www.eoeandroid.com/thread-557210-1-1.html

下面这篇博客,测试无效
http://blog.csdn.net/janice0529/article/details/44344169

Android系统 小米,三星,索尼手机发送桌面快键提醒数字图标,在Android系统中,众所周知不支持BadgeNumber,虽然第三方控件BadgeView可以实现应用内的数字提醒。

但对于系统的图标,特别是app的logo图标很难实现数字标志,即使是绘图的方式不断修改,但这种方式天生弊端,实用性很差。但幸运的是,某些ROM厂商提供了私有的API,但也带来了难度,API的不同意意味着代码量的增加和兼容性问题更加突出。

我们现在来实现桌面logo或者说icon右上角的图标,先来看2张图,第一张来自互联网,第二张来自个人实践!(由于实验条件有限,只能测试小米的(⊙o⊙)…,有兴趣的同学测试一下其他的吧)

Android系统 应用图标显示未读消息数(BadgeNumber) 桌面app图标的角标显示_第1张图片 Android系统 应用图标显示未读消息数(BadgeNumber) 桌面app图标的角标显示_第2张图片

实现原理:

首先我们要明白 并不是应用本身处理对启动图标进行修改、图标的动态修改的过程主要是在Launcher里面完成的.在应用安装,更新,卸载的时候,都会有广播发出,Launcher在LauncherApplication 中注册广播,在LauncherModel中处理接收到广播的消息,重新加载更新应用信息(如:应用图标、文字等)。但是原生的android系统是并不支持该特性的(及不能通过发送特定的系统广播 达到动态修改启动图标的效果),但是在强大的第三方Android手机厂商(如:三星、小米)的系统源码深度定制下、通过修改了Launcher源代码,增加/注册了新的广播接收器用来接收应用发送来的未读消息数广播,接收到广播后,系统将未读消息的数目显示事件交给Launcher去处理,调用相关方法去重绘应用的icon,最终达到动态更新应用图标的效果。

示例

源代码

public class MainActivity extends Activity {
      //必须使用,Activity启动页
      private final static String lancherActivityClassName = Welcome.class.getName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.common_listview_layout);
    }

    @Override
    protected void onResume() {
        super.onResume();
        sendBadgeNumber();
    }

    private void sendBadgeNumber() {
        String number = "35";
        if (TextUtils.isEmpty(number)) {
            number = "0";
        } else {
            int numInt = Integer.valueOf(number);
            number = String.valueOf(Math.max(0, Math.min(numInt, 99)));
        }

        if (Build.MANUFACTURER.equalsIgnoreCase("Xiaomi")) {
            sendToXiaoMi(number);
        } else if (Build.MANUFACTURER.equalsIgnoreCase("samsung")) {
            sendToSony(number);
        } else if (Build.MANUFACTURER.toLowerCase().contains("sony")) {
            sendToSamsumg(number);
        } else {
            Toast.makeText(this, "Not Support", Toast.LENGTH_LONG).show();
        }
    }

    private void sendToXiaoMi(String number) {
        NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = null;
        boolean isMiUIV6 = true;
        try {
            NotificationCompat.Builder builder = new NotificationCompat.Builder(this); 
            builder.setContentTitle("您有"+number+"未读消息");
            builder.setTicker("您有"+number+"未读消息");
            builder.setAutoCancel(true);
            builder.setSmallIcon(R.drawable.common_icon_lamp_light_red);
            builder.setDefaults(Notification.DEFAULT_LIGHTS);
            notification = builder.build(); 
   //以上代码为notification的初始化信息,在实际应用中,可以单独使用

            Class miuiNotificationClass = Class.forName("android.app.MiuiNotification");
            Object miuiNotification = miuiNotificationClass.newInstance();
            Field field = miuiNotification.getClass().getDeclaredField("messageCount");
            field.setAccessible(true);

            field.set(miuiNotification, number);// 设置信息数
            field = notification.getClass().getField("extraNotification"); 
            field.setAccessible(true);

            field.set(notification, miuiNotification);  
        Toast.makeText(this, "Xiaomi=>isSendOk=>1", Toast.LENGTH_LONG).show();
        }catch (Exception e) {
            e.printStackTrace();
            //miui 6之前的版本
            isMiUIV6 = false;
                Intent localIntent = new Intent("android.intent.action.APPLICATION_MESSAGE_UPDATE");
                localIntent.putExtra("android.intent.extra.update_application_component_name",getPackageName() + "/"+ lancherActivityClassName );
                localIntent.putExtra("android.intent.extra.update_application_message_text",number);
                sendBroadcast(localIntent);
        }
        finally
        {
          if(notification!=null && isMiUIV6 )
           {
               //miui6以上版本需要使用通知发送
            nm.notify(101010, notification); 
           }
        }

    }

    private void sendToSony(String number) {
        boolean isShow = true;
        if ("0".equals(number)) {
            isShow = false;
        }
        Intent localIntent = new Intent();
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE",isShow);//是否显示
        localIntent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME",lancherActivityClassName );//启动页
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", number);//数字
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME",getPackageName());//包名
        sendBroadcast(localIntent);

        Toast.makeText(this, "Sony," + "isSendOk", Toast.LENGTH_LONG).show();
    }

    private void sendToSamsumg(String number) 
    {
        Intent localIntent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
        localIntent.putExtra("badge_count", number);//数字
        localIntent.putExtra("badge_count_package_name", getPackageName());//包名
        localIntent.putExtra("badge_count_class_name",lancherActivityClassName ); //启动页
        sendBroadcast(localIntent);
        Toast.makeText(this, "Samsumg," + "isSendOk", Toast.LENGTH_LONG).show();
    }
}

AndroidMainfest.xml配置

注意lancherActivityClassName 必须被配置为 启动页 android.intent.category.LAUNCHER

 <activity  android:name="com.sample.activites.Welcome" android:configChanges="locale|keyboard|screenSize" android:label="@string/app_name" android:screenOrientation="portrait" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.CREATE_SHORTCUT" />
            </intent-filter>
        </activity>

MIUI 桌面角标官方开源代码简介

MIUI 6上重新设计了桌面app图标的角标显示,基本规则如下:

基本介绍

  • 默认的情况
    当app 向通知栏发送了一条通知 (通知不带进度条并且用户可以删除的),那么桌面app icon角标就会显示1.此时app显示的角标数是和通知栏里app发送的通知数对应的,即向通知栏发送了多少通知就会显示多少角标。

  • 通知可以定义角标数
    例如 有5封未读邮件,通知栏里只会显示一条通知,但是想让角标显示5. 可以在发通知时加个标示。
    实现代码

第三方app需要用反射来调用,参考代码:

NotificationManager mNotificationManager = (NotificationManager) this

.getSystemService(Context.NOTIFICATION_SERVICE);



Notification.Builder builder = new Notification.Builder(this)

.setContentTitle(“title”).setContentText(“text”).setSmallIcon(R.drawable.icon);

Notification notification = builder.build();

try {

Field field = notification.getClass().getDeclaredField(“extraNotification”);

Object extraNotification = field.get(notification);

Method method = extraNotification.getClass().getDeclaredMethod(“setMessageCount”, int.class);

method.invoke(extraNotification, mCount);

} catch (Exception e) {

e.printStackTrace();

}

mNotificationManager.notify(0,notification);

封装为工具类

注意:示例源代码中MIUI系统的功能实现和官方介绍的方法不一样,工具类使用的时速官方介绍的方法

这个工具类,是参考这篇博客,MIUI系统的我改了一下,测试可以,条件有限,sony和三星未测试

工具类下载地址:http://download.csdn.net/detail/xx326664162/9484065

package cn.hdnc.BadgeUtil;

import android.app.Notification;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Build;
import android.widget.Toast;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

/** * 应用启动图标未读消息数显示 工具类 (效果如:QQ、微信、未读短信 等应用图标)<br/> * 依赖于第三方手机厂商(如:小米、三星)的Launcher定制、原生系统不支持该特性<br/> * 该工具类 支持的设备有 小米、三星、索尼【其中小米、三星亲测有效、索尼未验证】 * @author [email protected] * */
public class BadgeUtil {

    /** * Set badge count<br/> * 针对 Samsung / xiaomi / sony 手机有效 * @param context The context of the application package. * @param count Badge count to be set */
    public static void setBadgeCount(Notification notification,Context context, int count) {
        if (count <= 0) {
            count = 0;
        } else {
            count = Math.max(0, Math.min(count, 99));
        }

        if (Build.MANUFACTURER.equalsIgnoreCase("Xiaomi")) {
            sendToXiaoMi(notification, context, count);
        } else if (Build.MANUFACTURER.equalsIgnoreCase("sony")) {
            sendToSony(context, count);
        } else if (Build.MANUFACTURER.toLowerCase().contains("samsung")) {
            sendToSamsumg(context, count);
        } else {
            Toast.makeText(context, "Not Support", Toast.LENGTH_LONG).show();
        }
    }


    /** * 向小米手机发送未读消息数广播 * @param count */
    private static void sendToXiaoMi(Notification notification,Context context, int count) {
        try {
// Class miuiNotificationClass = Class.forName("android.app.MiuiNotification");
// Object miuiNotification = miuiNotificationClass.newInstance();
// Field field = miuiNotification.getClass().getDeclaredField("messageCount");
// field.setAccessible(true);
// field.set(miuiNotification, String.valueOf(count == 0 ? "" : count)); // 设置信息数-->这种发送必须是miui 6才行

            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();
            // miui 6之前的版本
            Intent localIntent = new Intent(
                    "android.intent.action.APPLICATION_MESSAGE_UPDATE");
            localIntent.putExtra(
                    "android.intent.extra.update_application_component_name",
                    context.getPackageName() + "/" + getLauncherClassName(context));
            localIntent.putExtra(
                    "android.intent.extra.update_application_message_text", String.valueOf(count == 0 ? "" : count));
            context.sendBroadcast(localIntent);
        }
    }


    /** * 向索尼手机发送未读消息数广播<br/> * 据说:需添加权限:<uses-permission android:name="com.sonyericsson.home.permission.BROADCAST_BADGE" /> [未验证] * @param count */
    private static void sendToSony(Context context, int count){
        String launcherClassName = getLauncherClassName(context);
        if (launcherClassName == null) {
            return;
        }

        boolean isShow = true;
        if (count == 0) {
            isShow = false;
        }
        Intent localIntent = new Intent();
        localIntent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE",isShow);//是否显示
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME",launcherClassName );//启动页
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", String.valueOf(count));//数字
        localIntent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", context.getPackageName());//包名
        context.sendBroadcast(localIntent);
    }


    /** * 向三星手机发送未读消息数广播 * @param count */
    private static void sendToSamsumg(Context context, int count){
        String launcherClassName = getLauncherClassName(context);
        if (launcherClassName == null) {
            return;
        }
        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);
    }


    /** * 重置、清除Badge未读显示数<br/> * @param context */
    public static void resetBadgeCount(Notification notification,Context context) {
        setBadgeCount(notification, context, 0);
    }


    /** * Retrieve launcher activity name of the application from the context * * @param context The context of the application package. * @return launcher activity name of this application. From the * "android:name" attribute. */
    private static String getLauncherClassName(Context context) {
        PackageManager packageManager = context.getPackageManager();

        Intent intent = new Intent(Intent.ACTION_MAIN);
        // To limit the components this Intent will resolve to, by setting an
        // explicit package name.
        intent.setPackage(context.getPackageName());
        intent.addCategory(Intent.CATEGORY_LAUNCHER);

        // All Application must have 1 Activity at least.
        // Launcher activity must be found!
        ResolveInfo info = packageManager
                .resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);

        // get a ResolveInfo containing ACTION_MAIN, CATEGORY_LAUNCHER
        // if there is no Activity which has filtered by CATEGORY_DEFAULT
        if (info == null) {
            info = packageManager.resolveActivity(intent, 0);
        }

        return info.activityInfo.name;
    }

}

拓展

https://github.com/leolin310148/ShortcutBadger

克隆这个项目,可能会碰到如下两个问题:
http://blog.csdn.net/xx326664162/article/details/51083400
http://blog.csdn.net/xx326664162/article/details/51087827

测试发现小米手机不能实现角标功能,其它手机暂未测试

又在网上搜索了好久,感觉这个还不错,还没有亲测
http://www.jianshu.com/p/0992ff9eeeb6

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