有没有办法在Android中的应用程序图标中添加徽章？

https://stackoverflow.com/questions/2905542

04-10-2019
|

题

在iPhone上，您可以在应用程序图标中添加编号徽章。在BlackBerry上，我在程序中成功地将图像涂在应用程序的图标上。我也想为Android做到这一点。我不想使用通知栏，因为这不是需要立即通知的内容。取而代之的是，我只想通过查看应用程序图标来查看应用程序中有多少个新消息。

解决方案

不幸的是，Android不允许更改应用程序图标，因为一旦编译了程序，就可以将其密封在APK中。没有办法将其更改为“可绘制”。

您可以使用小部件代替图标来实现目标。小部件是高度定制的，可以做您想做的事。

关于iPhone图标通知和使用小部件之间的区别有一个简短的讨论：

http://www.cnet.com/8301-19736_1-10278814-251.html

您会注意到，使用小部件或图标之间几乎没有区别，因为它们的大小可以相同并且看起来相同。

其他提示

这也可以为索尼的Xperia Home做。我已经写了博客这里, ，但重要部分在下面。索尼设备使用名称的类 BadgeReciever.

声明 com.sonyericsson.home.permission.BROADCAST_BADGE 在您的清单文件中的权限：

广播 Intent 到 BadgeReceiver:

Intent intent = new Intent();

intent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME", "com.yourdomain.yourapp.MainActivity");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", true);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", "99");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", "com.yourdomain.yourapp");

sendBroadcast(intent);

完毕。一旦这个 Intent 广播启动器应显示您的应用程序图标上的徽章。
要再次删除徽章，只需发送新的广播，这次是 SHOW_MESSAGE 设置为false：
```
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", false);
```

我排除了有关如何使答案简短的详细信息，但是这些都可以在博客中提供。对于某人来说，可能是一个有趣的读物。

我也发布了一个分开的问题这里一旦我允许，将在那里添加完整的答案（需要10个声誉来在8小时内回答我自己的问题）。

代卡特库使其成为可能，并与LG，Sony，Samsung，HTC和其他自定义启动器一起使用。

它甚至有一种在纯Android设备桌面中显示徽章计数的方法。

更新应用程序图标中的徽章计数与调用一样容易：

int badgeCount = 1;
ShortcutBadger.setBadge(getApplicationContext(), badgeCount);

它包括一个允许您测试其行为的演示应用程序。

或者

您也可以尝试使用活动 - 阿里亚亚利亚（Alias）进行操作，但是在此中，您需要创建具有徽章值的不同图标，如果您需要在2个不同的应用程序图标之间切换它（需要创建不同的活动 - alias以显示显示）不同的图标IE更多图标=更多的活动 - alias）。

这是这样做的方法：

我认为在LG启动器上也有一种方法，但还没有发现如何。

华硕设备：

public static class AsusHomeBadger implements Badger {

    private static final String INTENT_ACTION = "android.intent.action.BADGE_COUNT_UPDATE";
    private static final String INTENT_EXTRA_BADGE_COUNT = "badge_count";
    private static final String INTENT_EXTRA_PACKAGENAME = "badge_count_package_name";
    private static final String INTENT_EXTRA_ACTIVITY_NAME = "badge_count_class_name";

    @Override
    public void executeBadge(int badgeCount) {
        final Intent intent = new Intent(INTENT_ACTION);
        intent.putExtra(INTENT_EXTRA_BADGE_COUNT, badgeCount);
        intent.putExtra(INTENT_EXTRA_PACKAGENAME, componentName.getPackageName());
        intent.putExtra(INTENT_EXTRA_ACTIVITY_NAME, componentName.getClassName());
        intent.putExtra("badge_vip_count", 0);
        if (canResolveBroadcast(intent)) {
            AndroidUtilities.runOnUIThread(new Runnable() {
                @Override
                public void run() {
                    ApplicationLoader.applicationContext.sendBroadcast(intent);
                }
            });
        }
    }

    @Override
    public List<String> getSupportLaunchers() {
        return Arrays.asList("com.asus.launcher");
    }
}

华为设备：

public static class HuaweiHomeBadger implements Badger {

    @Override
    public void executeBadge(int badgeCount) {
        final Bundle localBundle = new Bundle();
        localBundle.putString("package", ApplicationLoader.applicationContext.getPackageName());
        localBundle.putString("class", componentName.getClassName());
        localBundle.putInt("badgenumber", badgeCount);
        AndroidUtilities.runOnUIThread(new Runnable() {
            @Override
            public void run() {
                try {
                    ApplicationLoader.applicationContext.getContentResolver().call(Uri.parse("content://com.huawei.android.launcher.settings/badge/"), "change_badge", null, localBundle);
                } catch (Exception e) {
                    FileLog.e(e);
                }
            }
        });
    }

    @Override
    public List<String> getSupportLaunchers() {
        return Arrays.asList(
                "com.huawei.android.launcher"
        );
    }
}

HTC设备：

public static class NewHtcHomeBadger implements Badger {

    public static final String INTENT_UPDATE_SHORTCUT = "com.htc.launcher.action.UPDATE_SHORTCUT";
    public static final String INTENT_SET_NOTIFICATION = "com.htc.launcher.action.SET_NOTIFICATION";
    public static final String PACKAGENAME = "packagename";
    public static final String COUNT = "count";
    public static final String EXTRA_COMPONENT = "com.htc.launcher.extra.COMPONENT";
    public static final String EXTRA_COUNT = "com.htc.launcher.extra.COUNT";

    @Override
    public void executeBadge(int badgeCount) {

        final Intent intent1 = new Intent(INTENT_SET_NOTIFICATION);
        intent1.putExtra(EXTRA_COMPONENT, componentName.flattenToShortString());
        intent1.putExtra(EXTRA_COUNT, badgeCount);

        final Intent intent = new Intent(INTENT_UPDATE_SHORTCUT);
        intent.putExtra(PACKAGENAME, componentName.getPackageName());
        intent.putExtra(COUNT, badgeCount);

        if (canResolveBroadcast(intent1) || canResolveBroadcast(intent)) {
            AndroidUtilities.runOnUIThread(new Runnable() {
                @Override
                public void run() {
                    ApplicationLoader.applicationContext.sendBroadcast(intent1);
                    ApplicationLoader.applicationContext.sendBroadcast(intent);
                }
            });
        }
    }

    @Override
    public List<String> getSupportLaunchers() {
        return Arrays.asList("com.htc.launcher");
    }
}

三星设备：

public static class SamsungHomeBadger implements Badger {
    private static final String CONTENT_URI = "content://com.sec.badge/apps?notify=true";
    private static final String[] CONTENT_PROJECTION = new String[]{"_id","class"};

    private static DefaultBadger defaultBadger;

    @Override
    public void executeBadge(int badgeCount) {
        try {
            if (defaultBadger == null) {
                defaultBadger = new DefaultBadger();
            }
            defaultBadger.executeBadge(badgeCount);
        } catch (Exception ignore) {

        }

        Uri mUri = Uri.parse(CONTENT_URI);
        ContentResolver contentResolver = ApplicationLoader.applicationContext.getContentResolver();
        Cursor cursor = null;
        try {
            cursor = contentResolver.query(mUri, CONTENT_PROJECTION, "package=?", new String[]{componentName.getPackageName()}, null);
            if (cursor != null) {
                String entryActivityName = componentName.getClassName();
                boolean entryActivityExist = false;
                while (cursor.moveToNext()) {
                    int id = cursor.getInt(0);
                    ContentValues contentValues = getContentValues(componentName, badgeCount, false);
                    contentResolver.update(mUri, contentValues, "_id=?", new String[]{String.valueOf(id)});
                    if (entryActivityName.equals(cursor.getString(cursor.getColumnIndex("class")))) {
                        entryActivityExist = true;
                    }
                }

                if (!entryActivityExist) {
                    ContentValues contentValues = getContentValues(componentName, badgeCount, true);
                    contentResolver.insert(mUri, contentValues);
                }
            }
        } finally {
            close(cursor);
        }
    }

    private ContentValues getContentValues(ComponentName componentName, int badgeCount, boolean isInsert) {
        ContentValues contentValues = new ContentValues();
        if (isInsert) {
            contentValues.put("package", componentName.getPackageName());
            contentValues.put("class", componentName.getClassName());
        }

        contentValues.put("badgecount", badgeCount);

        return contentValues;
    }

    @Override
    public List<String> getSupportLaunchers() {
        return Arrays.asList(
                "com.sec.android.app.launcher",
                "com.sec.android.app.twlauncher"
        );
    }
}

索尼设备：

public static class SonyHomeBadger implements Badger {

    private static final String INTENT_ACTION = "com.sonyericsson.home.action.UPDATE_BADGE";
    private static final String INTENT_EXTRA_PACKAGE_NAME = "com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME";
    private static final String INTENT_EXTRA_ACTIVITY_NAME = "com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME";
    private static final String INTENT_EXTRA_MESSAGE = "com.sonyericsson.home.intent.extra.badge.MESSAGE";
    private static final String INTENT_EXTRA_SHOW_MESSAGE = "com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE";

    private static final String PROVIDER_CONTENT_URI = "content://com.sonymobile.home.resourceprovider/badge";
    private static final String PROVIDER_COLUMNS_BADGE_COUNT = "badge_count";
    private static final String PROVIDER_COLUMNS_PACKAGE_NAME = "package_name";
    private static final String PROVIDER_COLUMNS_ACTIVITY_NAME = "activity_name";
    private static final String SONY_HOME_PROVIDER_NAME = "com.sonymobile.home.resourceprovider";
    private final Uri BADGE_CONTENT_URI = Uri.parse(PROVIDER_CONTENT_URI);

    private static AsyncQueryHandler mQueryHandler;

    @Override
    public void executeBadge(int badgeCount) {
        if (sonyBadgeContentProviderExists()) {
            executeBadgeByContentProvider(badgeCount);
        } else {
            executeBadgeByBroadcast(badgeCount);
        }
    }

    @Override
    public List<String> getSupportLaunchers() {
        return Arrays.asList("com.sonyericsson.home", "com.sonymobile.home");
    }

    private static void executeBadgeByBroadcast(int badgeCount) {
        final Intent intent = new Intent(INTENT_ACTION);
        intent.putExtra(INTENT_EXTRA_PACKAGE_NAME, componentName.getPackageName());
        intent.putExtra(INTENT_EXTRA_ACTIVITY_NAME, componentName.getClassName());
        intent.putExtra(INTENT_EXTRA_MESSAGE, String.valueOf(badgeCount));
        intent.putExtra(INTENT_EXTRA_SHOW_MESSAGE, badgeCount > 0);
        AndroidUtilities.runOnUIThread(new Runnable() {
            @Override
            public void run() {
                ApplicationLoader.applicationContext.sendBroadcast(intent);
            }
        });
    }

    private void executeBadgeByContentProvider(int badgeCount) {
        if (badgeCount < 0) {
            return;
        }

        if (mQueryHandler == null) {
            mQueryHandler = new AsyncQueryHandler(ApplicationLoader.applicationContext.getApplicationContext().getContentResolver()) {

                @Override
                public void handleMessage(Message msg) {
                    try {
                        super.handleMessage(msg);
                    } catch (Throwable ignore) {

                    }
                }
            };
        }
        insertBadgeAsync(badgeCount, componentName.getPackageName(), componentName.getClassName());
    }

    private void insertBadgeAsync(int badgeCount, String packageName, String activityName) {
        final ContentValues contentValues = new ContentValues();
        contentValues.put(PROVIDER_COLUMNS_BADGE_COUNT, badgeCount);
        contentValues.put(PROVIDER_COLUMNS_PACKAGE_NAME, packageName);
        contentValues.put(PROVIDER_COLUMNS_ACTIVITY_NAME, activityName);
        mQueryHandler.startInsert(0, null, BADGE_CONTENT_URI, contentValues);
    }

    private static boolean sonyBadgeContentProviderExists() {
        boolean exists = false;
        ProviderInfo info = ApplicationLoader.applicationContext.getPackageManager().resolveContentProvider(SONY_HOME_PROVIDER_NAME, 0);
        if (info != null) {
            exists = true;
        }
        return exists;
    }
}

小米设备：

public static class XiaomiHomeBadger implements Badger {

    public static final String INTENT_ACTION = "android.intent.action.APPLICATION_MESSAGE_UPDATE";
    public static final String EXTRA_UPDATE_APP_COMPONENT_NAME = "android.intent.extra.update_application_component_name";
    public static final String EXTRA_UPDATE_APP_MSG_TEXT = "android.intent.extra.update_application_message_text";

    @Override
    public void executeBadge(int badgeCount) {
        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(badgeCount == 0 ? "" : badgeCount));
        } catch (Throwable e) {
            final Intent localIntent = new Intent(INTENT_ACTION);
            localIntent.putExtra(EXTRA_UPDATE_APP_COMPONENT_NAME, componentName.getPackageName() + "/" + componentName.getClassName());
            localIntent.putExtra(EXTRA_UPDATE_APP_MSG_TEXT, String.valueOf(badgeCount == 0 ? "" : badgeCount));
            if (canResolveBroadcast(localIntent)) {
                AndroidUtilities.runOnUIThread(new Runnable() {
                    @Override
                    public void run() {
                        ApplicationLoader.applicationContext.sendBroadcast(localIntent);
                    }
                });
            }
        }
    }

    @Override
    public List<String> getSupportLaunchers() {
        return Arrays.asList(
                "com.miui.miuilite",
                "com.miui.home",
                "com.miui.miuihome",
                "com.miui.miuihome2",
                "com.miui.mihome",
                "com.miui.mihome2"
        );
    }
}

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