Container.java :  » Music-Sound » geotrack » com » android » geotrack » Android Open Source

package com.android.geotrack;
import java.util.ArrayList;

import com.android.geotrack.R;

import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TabHost;
import android.widget.TextView;
import android.widget.TabHost.OnTabChangeListener;

/***
*
* Main class - Container.java
*/
public class Container extends TabActivity
{

  public static final String TAG_LOCATION_TAB = "LocationActivity"; 
    public static final String TAG_TOPTRACKS_TAB = "TopTracksActivity"; 
     
    public static final int ID_LOCATION_TAB = 0; 
    public static final int ID_TOPTRACKS_TAB = 1;
    
    // private TabHost host 
    
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    final TabHost host = getTabHost(); 
    //requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
    super.onCreate(savedInstanceState);
    
    host.addTab(host.newTabSpec(TAG_LOCATION_TAB)
        .setIndicator(TAG_LOCATION_TAB, getResources()
          .getDrawable(R.drawable.geotr))
        .setContent(new Intent(this, LocationActivity.class)));
    
    setText(ID_LOCATION_TAB, "", new Float(10.0),host);
    
    host.addTab(host.newTabSpec(TAG_TOPTRACKS_TAB)
        .setIndicator(TAG_TOPTRACKS_TAB,getResources()
          .getDrawable(R.drawable.track))
        .setContent(new Intent(this, TopTracksActivity.class)));

    setText(ID_TOPTRACKS_TAB, "", new Float(10.0),host); 
    
    host.setOnTabChangedListener(new OnTabChangeListener()
    {
      public void onTabChanged(String tabId)
      {
        if(tabId.equals(TAG_LOCATION_TAB))
        {
          setIcon(host.getCurrentTab(), R.drawable.geotr, host);
          setText(host.getCurrentTab(),"", new Float(10.0), host);
          setIcon(ID_TOPTRACKS_TAB, R.drawable.track,host);
          setText(ID_TOPTRACKS_TAB, "", new Float(10.0), host);
        }
        else if(tabId.equals(TAG_TOPTRACKS_TAB))
        {   
          setIcon(host.getCurrentTab(), R.drawable.track,host);
          setText(host.getCurrentTab(), "", new Float(10.0), host);
          setIcon(ID_LOCATION_TAB, R.drawable.geotr,host);
          setText(ID_LOCATION_TAB, "", new Float(10.0), host);
        }
      } 
    }); 
  }
  
  private void setIcon(int whichTab, int resourceId,TabHost host)
  { 
    ArrayList <View> views = host.getTabWidget().getChildAt(whichTab).getTouchables(); 
    RelativeLayout relLayout = (RelativeLayout)views.get(0);
    ImageView iv = (ImageView)relLayout.getChildAt(0);
    iv.setImageDrawable(getResources().getDrawable(resourceId)); 
  } 
  
  private void setText(int whichTab, String text, Float size, TabHost host)
  {
    ArrayList<View> views = host.getTabWidget().getChildAt(whichTab).getTouchables(); 
    RelativeLayout relLayout = (RelativeLayout)views.get(0); 
    TextView tv = (TextView)relLayout.getChildAt(1); 
    if(text != null){ 
      tv.setText(text); 
        } 
    tv.setTextSize(size);
  }
}