Launcher中拨号、短信图标加数字提示未接电话、未读短信数量

之前尝试过使用BadgeView来实现，修改涉及地方太多了，后来换了这种方式

本文仅简单实现拨号、短信图标动态提示未读数目，若有更好方式实现的，欢迎交流

Launcher.java

    private final Handler mHandler = new Handler() {@Overridepublic void handleMessage(Message msg) {......

            //ADD BY XIONG.CHEN FOR SHOW UNREAD MMSelse if (msg.what == UPDATE_MMS_ICON) {setMmsOrPhoneNum(MMS_ICON_NAME, getMissMmsCount());} else if (msg.what == UPDATE_CALL_ICON) {setMmsOrPhoneNum(PHONE_ICON_NAME, getMissCallCount());}}};

        //ADD BY XIONG.CHEN FOR SHOW UNREAD MMS ADD MISSCALLprivate SMSContentObserver smsContentObserver = null;private CallContentObserver callContentObserver = null;private final static int UPDATE_MMS_ICON = 826;private final static int UPDATE_CALL_ICON = 1206;private final static String PHONE_ICON_NAME = "com.android.contacts.activities.DialtactsActivity";private final static String MMS_ICON_NAME = "com.android.mms.ui.ConversationList";public class SMSContentObserver extends ContentObserver {private Handler mSmsHandler;public SMSContentObserver(Context context, Handler handler) {super(handler);mSmsHandler = handler;}@Overridepublic void onChange(boolean selfChange) {mHandler.removeMessages(UPDATE_MMS_ICON);Message msg = mHandler.obtainMessage(UPDATE_MMS_ICON);msg.obj = getMissCallCount();mHandler.sendMessage(msg);}}public class CallContentObserver extends ContentObserver {private Handler mHandler;public CallContentObserver(Context context, Handler handler) {super(handler);mHandler = handler;}@Overridepublic void onChange(boolean selfChange) {mHandler.removeMessages(UPDATE_CALL_ICON);Message msg = mHandler.obtainMessage(UPDATE_CALL_ICON);msg.obj = getMissCallCount();mHandler.sendMessage(msg);}}/*** * @param flag updata which icon,phone or mms* @param missCount*/private void setMmsOrPhoneNum(final String flag, final int missCount) {if(mWorkspace == null) return;ArrayList<CellLayout> cellLayouts = mWorkspace.getWorkspaceAndHotseatCellLayouts();for (final CellLayout layoutParent: cellLayouts) {final ViewGroup shortcutAndWidgetContainer = layoutParent.getShortcutsAndWidgets();mWorkspace.post(new Runnable() {public void run() {int childCount = shortcutAndWidgetContainer.getChildCount();for (int j = 0; j < childCount; j++) {View view = shortcutAndWidgetContainer.getChildAt(j);Object tag = view.getTag();if (tag instanceof ShortcutInfo) {final ShortcutInfo info = (ShortcutInfo) tag;final Intent intent = info.intent;if (intent != null) {final ComponentName name = intent.getComponent();if (name != null && name.getClassName().equals(flag)) {BubbleTextView bv = (BubbleTextView) view;Bitmap defaultIconBitmap = Bitmap.createBitmap(info.getIcon(mIconCache));Bitmap bitmap = Utilities.createIconBitmap(defaultIconBitmap, missCount);bv.setCompoundDrawablesWithIntrinsicBounds(null,new FastBitmapDrawable(bitmap),null, null);}}}}}});}}private int getMissMmsCount() {int missSmsCount = 0;Cursor cursorSMS = null;Cursor cursorMMS = null;try {cursorSMS = getContentResolver().query(Uri.parse("content://sms"), null, "(read=0 and type=1)",null, null);cursorMMS = getContentResolver().query(Uri.parse("content://mms"), null, "(read=0)", null,null);} catch (SQLiteException e) {return missSmsCount;}if (cursorSMS != null) {missSmsCount = cursorSMS.getCount();cursorSMS.close();}if (cursorMMS != null) {missSmsCount = missSmsCount + cursorMMS.getCount();cursorMMS.close();}return missSmsCount;}private int getMissCallCount() {int missCallCount = 0;Uri missingCallUri = Calls.CONTENT_URI;String where = Calls.TYPE + " = '" + Calls.MISSED_TYPE + "'"+ " AND new=1";Cursor cursorCall = null;try {cursorCall = getContentResolver().query(missingCallUri,null, where, null, null);} catch (SQLiteException e) {return missCallCount;}if (cursorCall != null) {missCallCount = cursorCall.getCount();cursorCall.close();}return missCallCount;}//ADD END

    //add by xiong.chen for ...static Bitmap createIconBitmap(Bitmap b, int count) {if (count == 0) return b;int textureWidth = b.getWidth();final Canvas canvas = sCanvas;Paint paint = new Paint();canvas.setBitmap(b);paint.setColor(Color.RED);canvas.drawCircle(textureWidth - 17, 16, 16, paint);paint.setColor(Color.WHITE);paint.setStyle(Style.STROKE);paint.setStrokeWidth(2);canvas.drawCircle(textureWidth - 17, 16, 16, paint);Paint countPaint = new Paint(Paint.ANTI_ALIAS_FLAG|Paint.DEV_KERN_TEXT_FLAG);  countPaint.setColor(Color.WHITE);  countPaint.setTextSize(26f);  countPaint.setTypeface(Typeface.DEFAULT_BOLD);  float x = textureWidth - 24;if (count > 9) x -= 4;        canvas.drawText(String.valueOf(count), x, 25, countPaint); //ENDreturn b;}

在finishBindingItems()方法中加入

        //ADD BY XIONG.CHEN ...int missCall = getMissCallCount();int missMms = getMissMmsCount();if(missCall != 0) {setMmsOrPhoneNum(PHONE_ICON_NAME, missCall);}if(missMms != 0) {setMmsOrPhoneNum(MMS_ICON_NAME, missMms);}

使得第一回启动launcher时便可提示未读信息

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Launcher中拨号、短信图标加数字提示未接电话、未读短信数量

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