Android 应用启动图标未读消息数显示

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Build;

import java.lang.reflect.Field;

/**

• 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)

• 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

• 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 junzhitian
  */
  public class BadgeUtil {

  /**

  • Set badge count

  • 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(Context context, int count) {
    if (count <= 0) {
    count = 0;
    } else {
    count = Math.max(0, Math.min(count, 99));
    }

    if (Build.MANUFACTURER.equalsIgnoreCase("Xiaomi")) {
    sendToXiaoMi(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(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miui6才行
    } 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
    

  • 据说：需添加权限：

  • 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
    
  • @param context
    */
    public static void resetBadgeCount(Context context) {
    setBadgeCount(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;
    }
    }