Android Core

Android Child Group Activity

Photo of Manish Srivastava Manish SrivastavaApril 30th, 2013Last Updated: May 14th, 2013
0 35 5 minutes read

Hello Friends, Today I am going to share very Important post for Child Group Activity, means activity open inside Tab Group. For this I use Animated Activity. This logic I picked from stackoverflow.com. Hope it will help some one.

Print Screen:

  1. Create a new project, name TabGroupChildDemo.
  2. Create an TabHostActivity and extend it to TabActivity.
  3. Create 3 other activity name-HomeActivity, AboutActivity, ContactActivity.
  4. Create 3 group activity name-HomeGroupActivity, AboutGroupActivity, ContactGroupActivity.
  5. Create an other Activity ChildActivity.java.
  6. Create 4 layout for Home, About, Contact, Child Activity, name activity_home, activity_about, activity_contact, activity_child.
  7. Create 3 other layout for display tabs- home_tab,about_tab,contact_tab.
  8. Add activity and group activity in manifest.xml
  9. Add images – home.png, about.png, contact.png, ic_tab_background in drawable folder, download below images

My Code:

TabHostActivity.java

package com.manish.tabdemo;

import android.app.TabActivity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.LinearLayout;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabWidget;
import android.widget.TextView;



@SuppressWarnings("deprecation")
public class TabHostActivity extends TabActivity implements OnTabChangeListener
{ 
 private static final String[] TABS = { "HomeGroupActivity", "AboutGroupActivity", "ContactGroupActivity" };
 private static final String[] TAB_NAMES = { "Home", "About", "Contact"};
 public static TabHost tabs ;
    public static TabWidget tabWidget ;    
 protected Bitmap roundedImage;
    public boolean checkTabsListener = false;
 
    
    public void onCreate(Bundle icicle)
    {        
     super.onCreate(icicle);
        setContentView(R.layout.activity_tab_host);
      
        Bitmap roundedImage = BitmapFactory.decodeResource(getResources(),R.drawable.ic_tab_background);
        roundedImage = getRoundedCornerBitmap(roundedImage,3);
       
        tabs = getTabHost();
   
        tabWidget = tabs.getTabWidget();
                      
     tabs.setOnTabChangedListener(this);
        
     for (int i = 0; i < TABS.length; i++)
        {
         TabHost.TabSpec tab = tabs.newTabSpec(TABS[i]);
         
         //Asociating Components
         ComponentName oneActivity = new ComponentName("com.manish.tabdemo", "com.manish.tabdemo." + TABS[i]);
         Intent intent = new Intent().setComponent(oneActivity);           
         intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
         tab.setContent(intent);         
         //Setting the Indicator
         MyTabIndicator myTab = new MyTabIndicator(this, TAB_NAMES[i],(i+1), roundedImage); 
         tab.setIndicator(myTab); 
         tabs.addTab(tab);
        }
        
     checkTabsListener = true;
     
        for(int i=0;i<tabs.getTabWidget().getChildCount();i++)
        {
         tabs.getTabWidget().getChildAt(i).setBackgroundColor(Color.TRANSPARENT);
        }
        
     
  tabs.getTabWidget().getChildAt(0).setBackgroundResource(R.drawable.ic_tab_background);   
  
  //Maintaining Clicks
  
  // Home Tab Click
  
  tabWidget.getChildAt(0).setOnClickListener(new OnClickListener()
        {   
   @Override
   public void onClick(View v)
   {     
     if(HomeGroupActivity.HomeGroupStack != null && HomeGroupActivity.HomeGroupStack.mIdList.size()>1)
     {      
      HomeGroupActivity.HomeGroupStack.getLocalActivityManager().removeAllActivities();
      HomeGroupActivity.HomeGroupStack.mIdList.clear();
      HomeGroupActivity.HomeGroupStack.mIntents.clear();
      HomeGroupActivity.HomeGroupStack.mAnimator.removeAllViews();
      HomeGroupActivity.HomeGroupStack.startChildActivity("CareGroupActivity", new Intent(HomeGroupActivity.HomeGroupStack, HomeActivity.class));
      finish();
     }
     
     tabWidget.setCurrentTab(0);
     tabs.setCurrentTab(0);
     tabs.getTabWidget().getChildAt(0).setBackgroundResource(R.drawable.ic_tab_background);  
   }
        });
  
 
  // About tab Click
  
  tabWidget.getChildAt(1).setOnClickListener(new OnClickListener()
        {   
   public void onClick(View v)
   {     
    if(AboutGroupActivity.AboutGroupStack != null && AboutGroupActivity.AboutGroupStack.mIdList.size()>0)
    {
     AboutGroupActivity.AboutGroupStack.getLocalActivityManager().removeAllActivities();
     AboutGroupActivity.AboutGroupStack.mIdList.clear();      
     AboutGroupActivity.AboutGroupStack.mIntents.clear();
     AboutGroupActivity.AboutGroupStack.mAnimator.removeAllViews();            
     AboutGroupActivity.AboutGroupStack.startChildActivity("TrackingGroupActivity", new Intent(AboutGroupActivity.AboutGroupStack, AboutActivity.class));           
    }     
             
    tabWidget.setCurrentTab(1);
    tabs.setCurrentTab(1);
    tabs.getTabWidget().getChildAt(1).setBackgroundResource(R.drawable.ic_tab_background);       
   }
        });
  
  // Contact tab click
  
  tabWidget.getChildAt(2).setOnClickListener(new OnClickListener()
        {   
   public void onClick(View v)
   {     
    if(ContactGroupActivity.ContactGroupStack != null && ContactGroupActivity.ContactGroupStack.mIdList.size()>0)
    {
      
     ContactGroupActivity.ContactGroupStack.getLocalActivityManager().removeAllActivities();
     ContactGroupActivity.ContactGroupStack.mIdList.clear();      
     ContactGroupActivity.ContactGroupStack.mIntents.clear();
     ContactGroupActivity.ContactGroupStack.mAnimator.removeAllViews();            
     ContactGroupActivity.ContactGroupStack.startChildActivity("DashboardGroupActivity", new Intent(ContactGroupActivity.ContactGroupStack, ContactActivity.class));           
    }     
             
    tabWidget.setCurrentTab(2);
    tabs.setCurrentTab(2);
    tabs.getTabWidget().getChildAt(2).setBackgroundResource(R.drawable.ic_tab_background);       
   }
        });
  

    }
  
    
    public class MyTabIndicator extends LinearLayout 
    {
  public MyTabIndicator(Context context, String label, int tabId, Bitmap bgImg)
  {
   super(context);
   LinearLayout tab = null;
   TextView tv;
   this.setGravity(Gravity.CENTER);
   
   if(tabId == 1)
   {
    tab = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.home_tab, null);
    tv = (TextView)tab.findViewById(R.id.tab_label);
    tv.setText(label);
   }
   
   
   
   else if(tabId == 2)
   {
    tab = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.about_tab, null);
    tv = (TextView)tab.findViewById(R.id.tab_label);
    tv.setText(label);
   }
   else if(tabId == 3)
   {
    tab = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.contact_tab, null);
    tv = (TextView)tab.findViewById(R.id.tab_label);
    tv.setText(label);
   }
       
   this.addView(tab, new LinearLayout.LayoutParams(320/4,55));   
  }  
    }

    
    
 public void onTabChanged(String tabId) 
 {      
  InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(tabs.getApplicationWindowToken(), 0);
          
        for(int i=0; i<tabs.getTabWidget().getChildCount(); i++)
  {                             
         if(tabId.equalsIgnoreCase(TABS[i]))
   {            
    tabs.getTabWidget().getChildAt(i).setBackgroundResource(R.drawable.ic_tab_background);     
   }
   else
   {
    tabs.getTabWidget().getChildAt(i).setBackgroundColor((Color.TRANSPARENT));
   }     
    }  
 }

  public static Bitmap getRoundedCornerBitmap(Bitmap bitmap,float roundPxRadius)
 {
        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
        Canvas canvas = new Canvas(output);
        
        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        final RectF rectF = new RectF(rect);
        final float roundPx =roundPxRadius;
     
        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
     
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);
     
        return output;
 }
 
 public void onResume()
 {
  super.onResume();
  
  
  //ReConstructing TabViews
  reDesignTabViews(); 
 }
 
 public void onPause()
 {
  super.onPause();     
 }
 

  
 
 /**
  * Method used to re constructing the Views at tab bar. This solves tabs disappearing issue.
  */
 public void reDesignTabViews()
 {
  MyTabIndicator myIndicator;
  
  
  //Construction of tab views....
  for(int i=0 ; i< tabWidget.getChildCount() ; i++)
  {
   myIndicator = (MyTabIndicator) tabWidget.getChildAt(i);
   myIndicator.removeAllViews();
   
   switch (i) 
   {

     case 0:
     myIndicator.addView((LinearLayout) LayoutInflater.from(getApplicationContext()).inflate(R.layout.home_tab, null));
     break;
    case 1:    
     myIndicator.addView((LinearLayout) LayoutInflater.from(getApplicationContext()).inflate(R.layout.about_tab, null));    
     break;
    case 2:    
     myIndicator.addView((LinearLayout) LayoutInflater.from(getApplicationContext()).inflate(R.layout.contact_tab, null));    
     break;
    
   }   
  }  
 }
 
}

HomeActivity.java

package com.manish.tabdemo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.manish.util.AnimatedActivity;

public class HomeActivity extends Activity {
 Button button1;

  @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_home);
  button1 = (Button) findViewById(R.id.button1);
  button1.setOnClickListener(new OnClickListener() {

    @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub

     AnimatedActivity pActivity = (AnimatedActivity) HomeActivity.this
      .getParent();
    Intent intent = new Intent(HomeActivity.this,
      ChildActivity.class);
    pActivity.startChildActivity("home_screen", intent);
   }
  });
 }

  @Override
 public void onBackPressed() {
  System.out.println("***back*");
  HomeActivity.super.onBackPressed();
 }

  @Override
 public boolean onKeyDown(int keyCode, KeyEvent event) {
  System.out.println("****event****" + event + "****" + keyCode);
  if (keyCode == KeyEvent.KEYCODE_BACK) {

    finish();
   return true;
  }
  return super.onKeyDown(keyCode, event);
 }
}

HomeGroupActivity.java

package com.manish.tabdemo;

import android.content.Intent;
import android.os.Bundle;

import com.manish.util.AnimatedActivity;

public class HomeGroupActivity extends AnimatedActivity {
 public static HomeGroupActivity HomeGroupStack;

  @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  HomeGroupStack = HomeGroupActivity.this;

   startChildActivity("HomeGroupActivity", new Intent(this,
    HomeActivity.class));
 }
}

AboutActivity.java

package com.manish.tabdemo;

import android.app.Activity;
import android.os.Bundle;

public class AboutActivity extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_about);
 }
}

AboutGroupActivity.java

package com.manish.tabdemo;

import android.content.Intent;
import android.os.Bundle;

import com.manish.util.AnimatedActivity;

public class AboutGroupActivity extends AnimatedActivity {
 public static AboutGroupActivity AboutGroupStack;

  @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  AboutGroupStack = AboutGroupActivity.this;

   startChildActivity("AboutGroupActivity", new Intent(this,
    AboutActivity.class));
 }
}

ContactActivity.java

package com.manish.tabdemo;

import android.app.Activity;
import android.os.Bundle;

public class ContactActivity extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_contact);
 }
}

ContactGroupActivity.java

package com.manish.tabdemo;

import android.content.Intent;
import android.os.Bundle;

import com.manish.util.AnimatedActivity;

public class ContactGroupActivity extends AnimatedActivity {
 public static ContactGroupActivity ContactGroupStack;

  @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  ContactGroupStack = ContactGroupActivity.this;

   startChildActivity("ContactGroupActivity", new Intent(this,
    ContactActivity.class));
 }
}

ChildActivity.java

package com.manish.tabdemo;

import android.app.Activity;
import android.os.Bundle;

public class ChildActivity extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_child);
 }
}

activity_tab_host.xml

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >

        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="0dip"
            android:layout_weight="1" />

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="-4dp"
            android:layout_weight="0" />
    </LinearLayout>

</TabHost>

activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#0099CC" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="Home Tab"
        android:textColor="#ffffff"
        android:textSize="35sp" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:text="Open Child" />

</RelativeLayout>

home_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="1dip"
        android:layout_marginTop="2dip"
        android:background="@drawable/home" >
    </TextView>

    <TextView
        android:id="@+id/tab_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Home"
        android:textColor="#0099CC" />

</LinearLayout>

activity_about.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#808080" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="About Tab"
        android:textColor="#ffffff"
        android:textSize="35sp" />

</RelativeLayout>

about_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="1dip"
        android:layout_marginTop="2dip"
        android:background="@drawable/about" >
    </TextView>

    <TextView
        android:id="@+id/tab_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="About"
        android:textColor="#0099CC" />

</LinearLayout>

activity_contact.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffdddd" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="Contact Tab"
        android:textColor="#000000"
        android:textSize="35sp" />

</RelativeLayout>

contact_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="1dip"
        android:layout_marginTop="2dip"
        android:background="@drawable/contact" >
    </TextView>

    <TextView
        android:id="@+id/tab_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Contact"
        android:textColor="#0099CC" />

</LinearLayout>

activity_child.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:background="#0099CC"
    android:layout_height="fill_parent" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="Child Activity"
        android:textSize="35sp"
        android:textColor="#ffffff" />

</RelativeLayout>

manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.manish.tabdemo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.manish.tabdemo.TabHostActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="com.manish.tabdemo.HomeActivity" />
        <activity android:name="com.manish.tabdemo.AboutActivity" />
        <activity android:name="com.manish.tabdemo.ContactActivity" />
        <activity android:name="com.manish.tabdemo.ChildActivity" />
        <activity android:name="com.manish.tabdemo.AboutGroupActivity" />
        <activity android:name="com.manish.tabdemo.ContactGroupActivity" />
        <activity android:name="com.manish.tabdemo.HomeGroupActivity" />
    </application>

</manifest>

You can refer below link for original post for “simple tab host activity” – http://www.androidhub4you.com/2013/04/android-tabactivity-tab-layout-demo-tab.html
 

Reference: Android Child Group Activity from our JCG partner Manish Srivastava at the Android Hub 4 you blog.
Photo of Manish Srivastava Manish SrivastavaApril 30th, 2013Last Updated: May 14th, 2013
0 35 5 minutes read
Photo of Manish Srivastava

Manish Srivastava

I have been a mobile software consultant + developer(Java, J2ME, Android) for over 2 years. I have done enterprise level development for large and small companies alike. Around 2010,I started doing Development for my customers.I always build clean, mobile friendly, semantic applicattion for every customer. For my clients, I get 100% involved, dedicated to making sure they get the best performance from the appliaction. I strive for long term results. I truly enjoy Mobile Development, and am very passionate about it. This enables me to do the best job for my clients.
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