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参考：
http://dev./doc/p=3904/index.html
http://my.oschina.net/ososchina/blog/352286?p=1#comments
https://github.com/leolin310148/ShortcutBadger
http://www./blog/kongbaidepao/article/p-62251.html
http://www./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）
 
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();
}
}
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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
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);
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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
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;
/**
* Created by xuexuan on 2016/4/6.
*/
/**
* 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 ice_zhengbin@163.com
*
*/
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;
}
}
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拓展
https://github.com/leolin310148/ShortcutBadger
这里别人已经封装好了这个功能，支持的手机类型也很多，但是我每次clone到本地，总是出各种问题（migrate project to gradle 该问题未解决），所以暂未使用，还望大神指点一点
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