I want to implement the functionality same as was there in iPhone
I i
Android ViewBadger may be the solution for you. (FYI, i haven't implemented it yet)
Here is the snap you can have as an output by this solution:
This is an example of How to add a badge in tab
chat_tab.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="0dip"
android:layout_height="64dip"
android:layout_weight="1"
android:layout_marginLeft="-3dip"
android:layout_marginRight="-3dip"
android:orientation="vertical"
android:background="@drawable/tab_indicator" >
<ImageView
android:id="@+id/chat_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/chat_icon"
android:layout_centerHorizontal="true"/>
<TextView
android:id="@+id/new_notifications"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/chat_icon"
android:layout_toRightOf="@+id/chat_icon"
android:layout_marginLeft="-8dp"
android:layout_marginTop="0dp"
android:paddingTop="2dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:paddingBottom="2dp"
android:textSize="8sp"
android:textStyle="bold"
android:textColor="@android:color/primary_text_dark"
android:background="@drawable/badge"
android:visibility="gone"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chat"
style="@android:attr/tabWidgetStyle"
android:textColor="@android:color/tab_indicator_text"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
This is badge.xml (red circle for notifications background), TextView id:new_notifications
background
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >
<stroke android:width="2dp" android:color="#FFFFFF" />
<corners android:radius="10dp"/>
<padding android:left="2dp" />
<solid android:color="#ff2233"/>
</shape>
Then in the code you can simply do
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View chatTab = inflater.inflate(R.layout.chat_tab, null);
tvNewNotifications = (TextView) chatTab.findViewById(R.id.new_notifications);
intent = new Intent().setClass(MainTab.this, Chat.class);
tabSpec = tabHost
.newTabSpec("chat")
.setIndicator(chatTab)
.setContent(intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
As you can see my Relative Layout has a background @drawable/tab_indicator
the tab indicator.xml is the framework's standard drawable of the tab,which i got from the sdk,i suggest you should also get it from the folder of the api in sdk as you also need to copy some images from the drawable folders,you can find it
your_sdk_drive:\sdk\platforms\android-8