在iPhone上,您可以为应用程序图标添加编号徽章。在BlackBerry上,我已经在程序中成功地将图像绘制到应用程序的图标上。我也想为Android做这件事。我不想使用通知栏,因为它不是需要立即通知的东西。相反,我只希望用户能够通过查看应用程序图标来查看应用程序中有多少新消息。
答案 0 :(得分:32)
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,它就会被密封在APK中。无法以编程方式将其更改为“可绘制”。
您可以使用小部件而不是图标来实现目标。小部件是高度可定制的,可以做你想要的。
有关iPhone图标通知与使用小部件的区别的简短讨论:
http://www.cnet.com/8301-19736_1-10278814-251.html
正如您将注意到的,使用小部件或图标几乎没有区别,因为它们的大小和大小相同。
答案 1 :(得分:16)
这也适用于索尼的Xperia Home。我发表了关于它的博客here,但重要的部分如下。 Sony设备使用名为BadgeReciever
的类。
在清单文件中声明com.sonyericsson.home.permission.BROADCAST_BADGE
权限:
将Intent
广播到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);
完成。广播此Intent
后,启动器应在您的应用程序图标上显示徽章。
要再次移除徽章,只需发送新广播,这次将SHOW_MESSAGE
设置为false:
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", false);
我已经排除了有关我如何找到这个以保持答案简短的细节,但这些都可以在博客中找到。对某人来说,这可能是一本有趣的读物。
我还发布了一个关于这个here的单独的问题,并且一旦我被允许就会在那里添加完整的答案(需要10个声誉才能在8小时内回答我自己的问题)。
答案 2 :(得分:9)
ShortcutBadger库可以与LG,索尼,三星,HTC和其他自定义启动器配合使用。
它甚至可以在纯Android设备桌面上显示徽章计数。
更新应用程序图标中的徽章计数就像调用:
一样简单int badgeCount = 1;
ShortcutBadger.setBadge(getApplicationContext(), badgeCount);
它包含一个演示应用程序,允许您测试其行为。
OR
你也可以尝试使用activity-alias这样做,但是在这里你需要创建带有徽章值的不同图标,如果你需要在两个不同的App图标之间切换(需要创建不同的活动),它将会很好用 - 用于显示不同图标的别名,即更多图标=更多活动别名)。
答案 3 :(得分:0)
答案 4 :(得分:0)
Asus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"
);
}
}
Sony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"
);
}
}
答案 5 :(得分:0)
从API 28开始,现在已正式支持:
从8.0(API级别26)开始,当关联的应用程序具有活动通知时,通知徽章(也称为通知点)会显示在启动器图标上。用户可以长按应用程序图标以显示通知(以及所有应用程序快捷方式),如图1所示。
默认情况下,这些点出现在支持它们的启动器应用中,您的应用无需执行任何操作。但是,在某些情况下,您可能不希望出现to通知点,或者想要完全控制要显示在其中的通知。
要设置自定义号码,请在通知上调用setNumber():
mNotification.setNumber(messageCount)